94eb1c4dc6
Add some tests which coreutils realpath pass but BusyBox realpath fails (bar one). Adjust xmalloc_realpath_coreutils() so the tests pass: - Expand symbolic links before testing whether the last path component exists. - When the link target is a relative path canonicalize it by passing it through xmalloc_realpath_coreutils() as already happens for absolute paths. - Ignore trailing slashes when finding the last path component and correctly handle the case where the only slash is at the start of the path. This requires ignoring superfluous leading slashes. - Undo all changes to the path so error messages from the caller show the original filename. function old new delta xmalloc_realpath_coreutils 214 313 +99 Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2625 lines
98 KiB
C
2625 lines
98 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Busybox main internal header file
|
|
*
|
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* Based in part on code from sash, Copyright (c) 1999 by David I. Bell
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* Permission has been granted to redistribute this code under GPL.
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*
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* Licensed under GPLv2, see file LICENSE in this source tree.
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*/
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#ifndef LIBBB_H
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#define LIBBB_H 1
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|
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#include "platform.h"
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|
|
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#include <ctype.h>
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <netdb.h>
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|
#include <setjmp.h>
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|
#include <signal.h>
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|
#include <paths.h>
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|
#if defined __UCLIBC__ /* TODO: and glibc? */
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|
/* use inlined versions of these: */
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|
# define sigfillset(s) __sigfillset(s)
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# define sigemptyset(s) __sigemptyset(s)
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# define sigisemptyset(s) __sigisemptyset(s)
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#endif
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stddef.h>
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|
#include <string.h>
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|
/* There are two incompatible basename's, let's not use them! */
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|
/* See the dirname/basename man page for details */
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#include <libgen.h> /* dirname,basename */
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#undef basename
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#define basename dont_use_basename
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#include <poll.h>
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#include <sys/ioctl.h>
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|
#include <sys/mman.h>
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|
#include <sys/resource.h>
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|
#include <sys/socket.h>
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|
#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#if !defined(major) || defined(__GLIBC__)
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# include <sys/sysmacros.h>
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#endif
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#include <sys/wait.h>
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#include <termios.h>
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#include <time.h>
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#include <sys/param.h>
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#include <pwd.h>
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#include <grp.h>
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#if ENABLE_FEATURE_SHADOWPASSWDS
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# if !ENABLE_USE_BB_SHADOW
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/* If using busybox's shadow implementation, do not include the shadow.h
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* header as the toolchain may not provide it at all.
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*/
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# include <shadow.h>
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# endif
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#endif
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#if defined(ANDROID) || defined(__ANDROID__)
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# define endpwent() ((void)0)
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# define endgrent() ((void)0)
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#endif
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#ifdef HAVE_MNTENT_H
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# include <mntent.h>
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#endif
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#ifdef HAVE_SYS_STATFS_H
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# include <sys/statfs.h>
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#endif
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/* Don't do this here:
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* #include <sys/sysinfo.h>
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* Some linux/ includes pull in conflicting definition
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* of struct sysinfo (only in some toolchanins), which breaks build.
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* Include sys/sysinfo.h only in those files which need it.
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*/
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#if ENABLE_SELINUX
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# include <selinux/selinux.h>
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# include <selinux/context.h>
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#endif
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#if ENABLE_FEATURE_UTMP
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# if defined __UCLIBC__ && ( \
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(UCLIBC_VERSION >= KERNEL_VERSION(0, 9, 32) \
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&& UCLIBC_VERSION < KERNEL_VERSION(0, 9, 34) \
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&& defined __UCLIBC_HAS_UTMPX__ \
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) || ( \
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UCLIBC_VERSION >= KERNEL_VERSION(0, 9, 34) \
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) \
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)
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# include <utmpx.h>
|
|
# elif defined __UCLIBC__
|
|
# include <utmp.h>
|
|
# define utmpx utmp
|
|
# define setutxent setutent
|
|
# define endutxent endutent
|
|
# define getutxent getutent
|
|
# define getutxid getutid
|
|
# define getutxline getutline
|
|
# define pututxline pututline
|
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# define utmpxname utmpname
|
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# define updwtmpx updwtmp
|
|
# define _PATH_UTMPX _PATH_UTMP
|
|
# else
|
|
# if !defined(__FreeBSD__)
|
|
# include <utmp.h>
|
|
# else
|
|
# define _PATH_UTMPX "/var/run/utx.active"
|
|
# endif
|
|
# include <utmpx.h>
|
|
# if defined _PATH_UTMP && !defined _PATH_UTMPX
|
|
# define _PATH_UTMPX _PATH_UTMP
|
|
# endif
|
|
# endif
|
|
#endif
|
|
#if ENABLE_LOCALE_SUPPORT
|
|
# include <locale.h>
|
|
#else
|
|
# define setlocale(x,y) ((void)0)
|
|
#endif
|
|
#ifdef DMALLOC
|
|
# include <dmalloc.h>
|
|
#endif
|
|
/* Just in case libc doesn't define some of these... */
|
|
#ifndef _PATH_PASSWD
|
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#define _PATH_PASSWD "/etc/passwd"
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|
#endif
|
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#ifndef _PATH_GROUP
|
|
#define _PATH_GROUP "/etc/group"
|
|
#endif
|
|
#ifndef _PATH_SHADOW
|
|
#define _PATH_SHADOW "/etc/shadow"
|
|
#endif
|
|
#ifndef _PATH_GSHADOW
|
|
#define _PATH_GSHADOW "/etc/gshadow"
|
|
#endif
|
|
#if defined __FreeBSD__ || defined __OpenBSD__
|
|
# include <netinet/in.h>
|
|
# include <arpa/inet.h>
|
|
#elif defined __APPLE__
|
|
# include <netinet/in.h>
|
|
#else
|
|
# include <arpa/inet.h>
|
|
//This breaks on bionic:
|
|
//# if !defined(__socklen_t_defined) && !defined(_SOCKLEN_T_DECLARED)
|
|
///* We #define socklen_t *after* includes, otherwise we get
|
|
// * typedef redefinition errors from system headers
|
|
// * (in case "is it defined already" detection above failed)
|
|
// */
|
|
//# define socklen_t bb_socklen_t
|
|
// typedef unsigned socklen_t;
|
|
//# endif
|
|
//if this is still needed, add a fix along the lines of
|
|
// ifdef SPECIFIC_BROKEN_LIBC_CHECK / typedef socklen_t / endif
|
|
//in platform.h instead!
|
|
#endif
|
|
#ifndef HAVE_CLEARENV
|
|
# define clearenv() do { if (environ) environ[0] = NULL; } while (0)
|
|
#endif
|
|
#ifndef HAVE_FDATASYNC
|
|
# define fdatasync fsync
|
|
#endif
|
|
#ifndef HAVE_XTABS
|
|
# define XTABS TAB3
|
|
#endif
|
|
/*
|
|
* Use '%m' to append error string on platforms that support it,
|
|
* '%s' and strerror() on those that don't.
|
|
*/
|
|
#ifdef HAVE_PRINTF_PERCENTM
|
|
# define STRERROR_FMT "%m"
|
|
# define STRERROR_ERRNO /*nothing*/
|
|
#else
|
|
# define STRERROR_FMT "%s"
|
|
# define STRERROR_ERRNO ,strerror(errno)
|
|
#endif
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|
|
|
|
|
/* Some libc's forget to declare these, do it ourself */
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|
|
|
extern char **environ;
|
|
/* klogctl is in libc's klog.h, but we cheat and not #include that */
|
|
int klogctl(int type, char *b, int len);
|
|
#ifndef PATH_MAX
|
|
# define PATH_MAX 256
|
|
#endif
|
|
#ifndef BUFSIZ
|
|
# define BUFSIZ 4096
|
|
#endif
|
|
|
|
#if __GNUC_PREREQ(5,0)
|
|
/* Since musl is apparently unable to get it right and would use
|
|
* a function call to a single-instruction function of "bswap %eax",
|
|
* reroute to gcc builtins:
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|
*/
|
|
# undef bswap_16
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|
# undef bswap_32
|
|
# undef bswap_64
|
|
# define bswap_16(x) __builtin_bswap16(x)
|
|
# define bswap_32(x) __builtin_bswap32(x)
|
|
# define bswap_64(x) __builtin_bswap64(x)
|
|
# if BB_LITTLE_ENDIAN
|
|
# undef ntohs
|
|
# undef htons
|
|
# undef ntohl
|
|
# undef htonl
|
|
# define ntohs(x) __builtin_bswap16(x)
|
|
# define htons(x) __builtin_bswap16(x)
|
|
# define ntohl(x) __builtin_bswap32(x)
|
|
# define htonl(x) __builtin_bswap32(x)
|
|
# endif
|
|
#endif
|
|
|
|
/* Busybox does not use threads, we can speed up stdio. */
|
|
#ifdef HAVE_UNLOCKED_STDIO
|
|
# undef getc
|
|
# define getc(stream) getc_unlocked(stream)
|
|
# undef getchar
|
|
# define getchar() getchar_unlocked()
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# undef putc
|
|
# define putc(c,stream) putc_unlocked(c,stream)
|
|
# undef putchar
|
|
# define putchar(c) putchar_unlocked(c)
|
|
# undef fgetc
|
|
# define fgetc(stream) getc_unlocked(stream)
|
|
# undef fputc
|
|
# define fputc(c,stream) putc_unlocked(c,stream)
|
|
#endif
|
|
/* Above functions are required by POSIX.1-2008, below ones are extensions */
|
|
#ifdef HAVE_UNLOCKED_LINE_OPS
|
|
# undef fgets
|
|
# define fgets(s,n,stream) fgets_unlocked(s,n,stream)
|
|
# undef fputs
|
|
# define fputs(s,stream) fputs_unlocked(s,stream)
|
|
/* musl <= 1.1.15 does not support fflush_unlocked(NULL) */
|
|
//# undef fflush
|
|
//# define fflush(stream) fflush_unlocked(stream)
|
|
# undef feof
|
|
# define feof(stream) feof_unlocked(stream)
|
|
# undef ferror
|
|
# define ferror(stream) ferror_unlocked(stream)
|
|
# undef fileno
|
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# define fileno(stream) fileno_unlocked(stream)
|
|
#endif
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|
|
|
|
/* Make all declarations hidden (-fvisibility flag only affects definitions) */
|
|
/* (don't include system headers after this until corresponding pop!) */
|
|
PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
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|
|
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#if ENABLE_USE_BB_PWD_GRP
|
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# include "pwd_.h"
|
|
# include "grp_.h"
|
|
#endif
|
|
#if ENABLE_FEATURE_SHADOWPASSWDS
|
|
# if ENABLE_USE_BB_SHADOW
|
|
# include "shadow_.h"
|
|
# endif
|
|
#endif
|
|
|
|
/* Tested to work correctly with all int types (IIRC :]) */
|
|
#define MAXINT(T) (T)( \
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((T)-1) > 0 \
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? (T)-1 \
|
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: (T)~((T)1 << (sizeof(T)*8-1)) \
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)
|
|
|
|
#define MININT(T) (T)( \
|
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((T)-1) > 0 \
|
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? (T)0 \
|
|
: ((T)1 << (sizeof(T)*8-1)) \
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|
)
|
|
|
|
/* Large file support */
|
|
/* Note that CONFIG_LFS=y forces bbox to be built with all common ops
|
|
* (stat, lseek etc) mapped to "largefile" variants by libc.
|
|
* Practically it means that open() automatically has O_LARGEFILE added
|
|
* and all filesize/file_offset parameters and struct members are "large"
|
|
* (in today's world - signed 64bit). For full support of large files,
|
|
* we need a few helper #defines (below) and careful use of off_t
|
|
* instead of int/ssize_t. No lseek64(), O_LARGEFILE etc necessary */
|
|
#if ENABLE_LFS
|
|
/* CONFIG_LFS is on */
|
|
# if ULONG_MAX > 0xffffffff
|
|
/* "long" is long enough on this system */
|
|
typedef unsigned long uoff_t;
|
|
# define XATOOFF(a) xatoul_range((a), 0, LONG_MAX)
|
|
/* usage: sz = BB_STRTOOFF(s, NULL, 10); if (errno || sz < 0) die(); */
|
|
# define BB_STRTOOFF bb_strtoul
|
|
# define STRTOOFF strtoul
|
|
/* usage: printf("size: %"OFF_FMT"d (%"OFF_FMT"x)\n", sz, sz); */
|
|
# define OFF_FMT "l"
|
|
# else
|
|
/* "long" is too short, need "long long" */
|
|
typedef unsigned long long uoff_t;
|
|
# define XATOOFF(a) xatoull_range((a), 0, LLONG_MAX)
|
|
# define BB_STRTOOFF bb_strtoull
|
|
# define STRTOOFF strtoull
|
|
# define OFF_FMT "ll"
|
|
# endif
|
|
#else
|
|
/* CONFIG_LFS is off */
|
|
/* sizeof(off_t) == sizeof(long).
|
|
* May or may not be == sizeof(int). If it is, use xatoi_positive()
|
|
* and bb_strtou() instead of xatoul_range() and bb_strtoul().
|
|
* Even if sizeof(off_t) == sizeof(int), off_t is typedef'ed to long anyway.
|
|
* gcc will throw warnings on printf("%d", off_t)... Have to use %ld etc.
|
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*/
|
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# if UINT_MAX == ULONG_MAX
|
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typedef unsigned long uoff_t;
|
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# define XATOOFF(a) xatoi_positive(a)
|
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# define BB_STRTOOFF bb_strtou
|
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# define STRTOOFF strtol
|
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# define OFF_FMT "l"
|
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# else
|
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typedef unsigned long uoff_t;
|
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# define XATOOFF(a) xatoul_range((a), 0, LONG_MAX)
|
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# define BB_STRTOOFF bb_strtoul
|
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# define STRTOOFF strtol
|
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# define OFF_FMT "l"
|
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# endif
|
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#endif
|
|
/* scary. better ideas? (but do *test* them first!) */
|
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#define OFF_T_MAX ((off_t)~((off_t)1 << (sizeof(off_t)*8-1)))
|
|
/* Users report bionic to use 32-bit off_t even if LARGEFILE support is requested.
|
|
* On musl, !ENABLE_LFS on 32-bit arches thinks that off_t is 32-bit.
|
|
* We misdetected that. Don't let it build:
|
|
*/
|
|
struct BUG_off_t_size_is_misdetected {
|
|
char BUG_off_t_size_is_misdetected[sizeof(off_t) == sizeof(uoff_t) ? 1 : -1];
|
|
};
|
|
|
|
/* Some useful definitions */
|
|
#undef FALSE
|
|
#define FALSE ((int) 0)
|
|
#undef TRUE
|
|
#define TRUE ((int) 1)
|
|
#undef SKIP
|
|
#define SKIP ((int) 2)
|
|
|
|
/* Macros for min/max. */
|
|
#ifndef MIN
|
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#define MIN(a,b) (((a)<(b))?(a):(b))
|
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#endif
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|
|
#ifndef MAX
|
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#define MAX(a,b) (((a)>(b))?(a):(b))
|
|
#endif
|
|
|
|
/* buffer allocation schemes */
|
|
#if ENABLE_FEATURE_BUFFERS_GO_ON_STACK
|
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#define RESERVE_CONFIG_BUFFER(buffer,len) char buffer[len]
|
|
#define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char buffer[len]
|
|
#define RELEASE_CONFIG_BUFFER(buffer) ((void)0)
|
|
#else
|
|
#if ENABLE_FEATURE_BUFFERS_GO_IN_BSS
|
|
#define RESERVE_CONFIG_BUFFER(buffer,len) static char buffer[len]
|
|
#define RESERVE_CONFIG_UBUFFER(buffer,len) static unsigned char buffer[len]
|
|
#define RELEASE_CONFIG_BUFFER(buffer) ((void)0)
|
|
#else
|
|
#define RESERVE_CONFIG_BUFFER(buffer,len) char *buffer = xmalloc(len)
|
|
#define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char *buffer = xmalloc(len)
|
|
#define RELEASE_CONFIG_BUFFER(buffer) free(buffer)
|
|
#endif
|
|
#endif
|
|
|
|
/* We use a trick to have more optimized code (fewer pointer reloads
|
|
* and reduced binary size by a few kilobytes) like:
|
|
* ash.c: extern struct globals *const ash_ptr_to_globals;
|
|
* ash_ptr_hack.c: struct globals *ash_ptr_to_globals;
|
|
* This way, compiler in ash.c knows the pointer can not change.
|
|
*
|
|
* However, this may break on weird arches or toolchains. In this case,
|
|
* set "-DBB_GLOBAL_CONST=''" in CONFIG_EXTRA_CFLAGS to disable
|
|
* this optimization.
|
|
*/
|
|
#ifndef BB_GLOBAL_CONST
|
|
# define BB_GLOBAL_CONST const
|
|
#endif
|
|
|
|
#if defined(errno)
|
|
/* If errno is a define, assume it's "define errno (*__errno_location())"
|
|
* and we will cache it's result in this variable */
|
|
extern int *BB_GLOBAL_CONST bb_errno;
|
|
# undef errno
|
|
# define errno (*bb_errno)
|
|
# define bb_cached_errno_ptr 1
|
|
#endif
|
|
|
|
#if !(ULONG_MAX > 0xffffffff)
|
|
/* Only 32-bit CPUs need this, 64-bit ones use inlined version */
|
|
uint64_t bb_bswap_64(uint64_t x) FAST_FUNC;
|
|
#endif
|
|
|
|
unsigned long FAST_FUNC isqrt(unsigned long long N);
|
|
|
|
unsigned long long monotonic_ns(void) FAST_FUNC;
|
|
unsigned long long monotonic_us(void) FAST_FUNC;
|
|
unsigned long long monotonic_ms(void) FAST_FUNC;
|
|
unsigned monotonic_sec(void) FAST_FUNC;
|
|
|
|
extern void chomp(char *s) FAST_FUNC;
|
|
extern char *trim(char *s) FAST_FUNC;
|
|
extern char *skip_whitespace(const char *) FAST_FUNC;
|
|
extern char *skip_non_whitespace(const char *) FAST_FUNC;
|
|
extern char *skip_dev_pfx(const char *tty_name) FAST_FUNC;
|
|
|
|
extern char *strrstr(const char *haystack, const char *needle) FAST_FUNC;
|
|
|
|
/* dmalloc will redefine these to it's own implementation. It is safe
|
|
* to have the prototypes here unconditionally. */
|
|
void *malloc_or_warn(size_t size) FAST_FUNC RETURNS_MALLOC;
|
|
void *xmalloc(size_t size) FAST_FUNC RETURNS_MALLOC;
|
|
void *xzalloc(size_t size) FAST_FUNC RETURNS_MALLOC;
|
|
void *xrealloc(void *old, size_t size) FAST_FUNC;
|
|
/* After v = xrealloc_vector(v, SHIFT, idx) it's ok to use
|
|
* at least v[idx] and v[idx+1], for all idx values.
|
|
* SHIFT specifies how many new elements are added (1:2, 2:4, ..., 8:256...)
|
|
* when all elements are used up. New elements are zeroed out.
|
|
* xrealloc_vector(v, SHIFT, idx) *MUST* be called with consecutive IDXs -
|
|
* skipping an index is a bad bug - it may miss a realloc!
|
|
*/
|
|
#define xrealloc_vector(vector, shift, idx) \
|
|
xrealloc_vector_helper((vector), (sizeof((vector)[0]) << 8) + (shift), (idx))
|
|
void* xrealloc_vector_helper(void *vector, unsigned sizeof_and_shift, int idx) FAST_FUNC;
|
|
char *xstrdup(const char *s) FAST_FUNC RETURNS_MALLOC;
|
|
char *xstrndup(const char *s, int n) FAST_FUNC RETURNS_MALLOC;
|
|
void *xmemdup(const void *s, int n) FAST_FUNC RETURNS_MALLOC;
|
|
void *mmap_read(int fd, size_t size) FAST_FUNC;
|
|
void *mmap_anon(size_t size) FAST_FUNC;
|
|
void *xmmap_anon(size_t size) FAST_FUNC;
|
|
|
|
#if defined(__x86_64__) || defined(i386)
|
|
# define BB_ARCH_FIXED_PAGESIZE 4096
|
|
#elif defined(__arm__) /* only 32bit, 64bit ARM has variable page size */
|
|
# define BB_ARCH_FIXED_PAGESIZE 4096
|
|
#else /* if defined(ARCH) */
|
|
/* add you favorite arch today! */
|
|
//From Linux kernel inspection:
|
|
//xtenza,s390[x],riscv,nios2,csky,sparc32: fixed 4k pages
|
|
//sparc64,alpha,openrisc: fixed 8k pages
|
|
#endif
|
|
|
|
#if defined BB_ARCH_FIXED_PAGESIZE
|
|
# define IF_VARIABLE_ARCH_PAGESIZE(...) /*nothing*/
|
|
# define bb_getpagesize() BB_ARCH_FIXED_PAGESIZE
|
|
# define INIT_PAGESIZE(var) ((void)0)
|
|
# define cached_pagesize(var) BB_ARCH_FIXED_PAGESIZE
|
|
#else
|
|
# define IF_VARIABLE_ARCH_PAGESIZE(...) __VA_ARGS__
|
|
# define bb_getpagesize() getpagesize()
|
|
# define INIT_PAGESIZE(var) ((var) = getpagesize())
|
|
# define cached_pagesize(var) (var)
|
|
#endif
|
|
|
|
/* Generate ls-style "mode string" like "-rwsr-xr-x" or "drwxrwxrwt" */
|
|
extern char *bb_mode_string(char buf[11], mode_t mode) FAST_FUNC;
|
|
extern int is_directory(const char *name, int followLinks) FAST_FUNC;
|
|
enum { /* cp.c, mv.c, install.c depend on these values. CAREFUL when changing them! */
|
|
FILEUTILS_PRESERVE_STATUS = 1 << 0, /* -p */
|
|
FILEUTILS_DEREFERENCE = 1 << 1, /* !-d */
|
|
FILEUTILS_RECUR = 1 << 2, /* -R */
|
|
FILEUTILS_FORCE = 1 << 3, /* -f */
|
|
FILEUTILS_INTERACTIVE = 1 << 4, /* -i */
|
|
FILEUTILS_NO_OVERWRITE = 1 << 5, /* -n */
|
|
FILEUTILS_MAKE_HARDLINK = 1 << 6, /* -l */
|
|
FILEUTILS_MAKE_SOFTLINK = 1 << 7, /* -s */
|
|
FILEUTILS_DEREF_SOFTLINK = 1 << 8, /* -L */
|
|
FILEUTILS_DEREFERENCE_L0 = 1 << 9, /* -H */
|
|
/* -a = -pdR (mapped in cp.c) */
|
|
/* -r = -dR (mapped in cp.c) */
|
|
/* -P = -d (mapped in cp.c) */
|
|
FILEUTILS_VERBOSE = (1 << 13) * ENABLE_FEATURE_VERBOSE, /* -v */
|
|
FILEUTILS_UPDATE = 1 << 14, /* -u */
|
|
FILEUTILS_NO_TARGET_DIR = 1 << 15, /* -T */
|
|
FILEUTILS_TARGET_DIR = 1 << 16, /* -t DIR */
|
|
#if ENABLE_SELINUX
|
|
FILEUTILS_PRESERVE_SECURITY_CONTEXT = 1 << 17, /* -c */
|
|
#endif
|
|
#define FILEUTILS_CP_OPTSTR "pdRfinlsLHarPvuTt:" IF_SELINUX("c")
|
|
/* How many bits in FILEUTILS_CP_OPTSTR? */
|
|
FILEUTILS_CP_OPTBITS = 18 - !ENABLE_SELINUX,
|
|
|
|
FILEUTILS_RMDEST = 1 << (19 - !ENABLE_SELINUX), /* cp --remove-destination */
|
|
/* bit 18 skipped for "cp --parents" */
|
|
FILEUTILS_REFLINK = 1 << (20 - !ENABLE_SELINUX), /* cp --reflink=auto */
|
|
FILEUTILS_REFLINK_ALWAYS = 1 << (21 - !ENABLE_SELINUX), /* cp --reflink[=always] */
|
|
/*
|
|
* Hole. cp may have some bits set here,
|
|
* they should not affect remove_file()/copy_file()
|
|
*/
|
|
#if ENABLE_SELINUX
|
|
FILEUTILS_SET_SECURITY_CONTEXT = 1 << 30,
|
|
#endif
|
|
FILEUTILS_IGNORE_CHMOD_ERR = 1 << 31,
|
|
};
|
|
|
|
extern int remove_file(const char *path, int flags) FAST_FUNC;
|
|
/* NB: without FILEUTILS_RECUR in flags, it will basically "cat"
|
|
* the source, not copy (unless "source" is a directory).
|
|
* This makes "cp /dev/null file" and "install /dev/null file" (!!!)
|
|
* work coreutils-compatibly. */
|
|
extern int copy_file(const char *source, const char *dest, int flags) FAST_FUNC;
|
|
|
|
enum {
|
|
ACTION_RECURSE = (1 << 0),
|
|
ACTION_FOLLOWLINKS = (1 << 1),
|
|
ACTION_FOLLOWLINKS_L0 = (1 << 2),
|
|
ACTION_DEPTHFIRST = (1 << 3),
|
|
ACTION_QUIET = (1 << 4),
|
|
ACTION_DANGLING_OK = (1 << 5),
|
|
};
|
|
typedef uint8_t recurse_flags_t;
|
|
typedef struct recursive_state {
|
|
unsigned flags;
|
|
unsigned depth;
|
|
void *userData;
|
|
int FAST_FUNC (*fileAction)(struct recursive_state *state, const char *fileName, struct stat* statbuf);
|
|
int FAST_FUNC (*dirAction)(struct recursive_state *state, const char *fileName, struct stat* statbuf);
|
|
} recursive_state_t;
|
|
int recursive_action(const char *fileName, unsigned flags,
|
|
int FAST_FUNC (*fileAction)(struct recursive_state *state, const char *fileName, struct stat* statbuf),
|
|
int FAST_FUNC (*dirAction)(struct recursive_state *state, const char *fileName, struct stat* statbuf),
|
|
void *userData
|
|
) FAST_FUNC;
|
|
|
|
/* Simpler version: call a function on each dirent in a directory */
|
|
int iterate_on_dir(const char *dir_name,
|
|
int FAST_FUNC (*func)(const char *, struct dirent *, void *),
|
|
void *private) FAST_FUNC;
|
|
|
|
extern int device_open(const char *device, int mode) FAST_FUNC;
|
|
enum { GETPTY_BUFSIZE = 16 }; /* more than enough for "/dev/ttyXXX" */
|
|
extern int xgetpty(char *line) FAST_FUNC;
|
|
extern int get_console_fd_or_die(void) FAST_FUNC;
|
|
extern void console_make_active(int fd, const int vt_num) FAST_FUNC;
|
|
extern char *find_block_device(const char *path) FAST_FUNC;
|
|
/* bb_copyfd_XX print read/write errors and return -1 if they occur */
|
|
extern off_t bb_copyfd_eof(int fd1, int fd2) FAST_FUNC;
|
|
extern off_t bb_copyfd_size(int fd1, int fd2, off_t size) FAST_FUNC;
|
|
extern void bb_copyfd_exact_size(int fd1, int fd2, off_t size) FAST_FUNC;
|
|
/* "short" copy can be detected by return value < size */
|
|
/* this helper yells "short read!" if param is not -1 */
|
|
extern void complain_copyfd_and_die(off_t sz) NORETURN FAST_FUNC;
|
|
|
|
extern char bb_process_escape_sequence(const char **ptr) FAST_FUNC;
|
|
char* strcpy_and_process_escape_sequences(char *dst, const char *src) FAST_FUNC;
|
|
/* xxxx_strip version can modify its parameter:
|
|
* "/" -> "/"
|
|
* "abc" -> "abc"
|
|
* "abc/def" -> "def"
|
|
* "abc/def/" -> "def" !!
|
|
*/
|
|
char *bb_get_last_path_component_strip(char *path) FAST_FUNC;
|
|
/* "abc/def/" -> "" and it never modifies 'path' */
|
|
char *bb_get_last_path_component_nostrip(const char *path) FAST_FUNC;
|
|
/* Simpler version: does not special case "/" string */
|
|
const char *bb_basename(const char *name) FAST_FUNC;
|
|
/* NB: can violate const-ness (similarly to strchr) */
|
|
char *last_char_is(const char *s, int c) FAST_FUNC;
|
|
const char* endofname(const char *name) FAST_FUNC;
|
|
char *is_prefixed_with(const char *string, const char *key) FAST_FUNC;
|
|
char *is_suffixed_with(const char *string, const char *key) FAST_FUNC;
|
|
|
|
int ndelay_on(int fd) FAST_FUNC;
|
|
int ndelay_off(int fd) FAST_FUNC;
|
|
void close_on_exec_on(int fd) FAST_FUNC;
|
|
void xdup2(int, int) FAST_FUNC;
|
|
void xmove_fd(int, int) FAST_FUNC;
|
|
|
|
|
|
DIR *xopendir(const char *path) FAST_FUNC;
|
|
DIR *warn_opendir(const char *path) FAST_FUNC;
|
|
|
|
char *xmalloc_realpath(const char *path) FAST_FUNC RETURNS_MALLOC;
|
|
char *xmalloc_realpath_coreutils(char *path) FAST_FUNC RETURNS_MALLOC;
|
|
char *xmalloc_readlink(const char *path) FAST_FUNC RETURNS_MALLOC;
|
|
char *xmalloc_readlink_or_warn(const char *path) FAST_FUNC RETURNS_MALLOC;
|
|
/* !RETURNS_MALLOC: it's a realloc-like function */
|
|
char *xrealloc_getcwd_or_warn(char *cwd) FAST_FUNC;
|
|
|
|
char *xmalloc_follow_symlinks(const char *path) FAST_FUNC RETURNS_MALLOC;
|
|
|
|
|
|
enum {
|
|
/* bb_signals(BB_FATAL_SIGS, handler) catches all signals which
|
|
* otherwise would kill us, except for those resulting from bugs:
|
|
* SIGSEGV, SIGILL, SIGFPE.
|
|
* Other fatal signals not included (TODO?):
|
|
* SIGBUS Bus error (bad memory access)
|
|
* SIGPOLL Pollable event. Synonym of SIGIO
|
|
* SIGPROF Profiling timer expired
|
|
* SIGSYS Bad argument to routine
|
|
* SIGTRAP Trace/breakpoint trap
|
|
*
|
|
* The only known arch with some of these sigs not fitting
|
|
* into 32 bits is parisc (SIGXCPU=33, SIGXFSZ=34, SIGSTKFLT=36).
|
|
* Dance around with long long to guard against that...
|
|
*/
|
|
BB_FATAL_SIGS = (int)(0
|
|
+ (1LL << SIGHUP)
|
|
+ (1LL << SIGINT)
|
|
+ (1LL << SIGTERM)
|
|
+ (1LL << SIGPIPE) // Write to pipe with no readers
|
|
+ (1LL << SIGQUIT) // Quit from keyboard
|
|
+ (1LL << SIGABRT) // Abort signal from abort(3)
|
|
+ (1LL << SIGALRM) // Timer signal from alarm(2)
|
|
+ (1LL << SIGVTALRM) // Virtual alarm clock
|
|
+ (1LL << SIGXCPU) // CPU time limit exceeded
|
|
+ (1LL << SIGXFSZ) // File size limit exceeded
|
|
+ (1LL << SIGUSR1) // Yes kids, these are also fatal!
|
|
+ (1LL << SIGUSR2)
|
|
+ 0),
|
|
};
|
|
void bb_signals(int sigs, void (*f)(int)) FAST_FUNC;
|
|
/* Unlike signal() and bb_signals, sets handler with sigaction()
|
|
* and in a way that while signal handler is run, no other signals
|
|
* will be blocked; syscalls will not be restarted: */
|
|
void bb_signals_norestart(int sigs, void (*f)(int)) FAST_FUNC;
|
|
/* syscalls like read() will be interrupted with EINTR: */
|
|
void signal_no_SA_RESTART_empty_mask(int sig, void (*handler)(int)) FAST_FUNC;
|
|
/* syscalls like read() won't be interrupted (though select/poll will be): */
|
|
void signal_SA_RESTART_empty_mask(int sig, void (*handler)(int)) FAST_FUNC;
|
|
void wait_for_any_sig(void) FAST_FUNC;
|
|
void kill_myself_with_sig(int sig) NORETURN FAST_FUNC;
|
|
void sig_block(int sig) FAST_FUNC;
|
|
void sig_unblock(int sig) FAST_FUNC;
|
|
/* Will do sigaction(signum, act, NULL): */
|
|
int sigaction_set(int sig, const struct sigaction *act) FAST_FUNC;
|
|
/* SIG_BLOCK/SIG_UNBLOCK all signals: */
|
|
int sigprocmask_allsigs(int how) FAST_FUNC;
|
|
/* Return old set in the same set: */
|
|
int sigprocmask2(int how, sigset_t *set) FAST_FUNC;
|
|
/* Standard handler which just records signo */
|
|
extern smallint bb_got_signal;
|
|
void record_signo(int signo); /* not FAST_FUNC! */
|
|
|
|
|
|
void xsetgid(gid_t gid) FAST_FUNC;
|
|
void xsetuid(uid_t uid) FAST_FUNC;
|
|
void xsetegid(gid_t egid) FAST_FUNC;
|
|
void xseteuid(uid_t euid) FAST_FUNC;
|
|
void xchdir(const char *path) FAST_FUNC;
|
|
void xfchdir(int fd) FAST_FUNC;
|
|
void xchroot(const char *path) FAST_FUNC;
|
|
void xsetenv(const char *key, const char *value) FAST_FUNC;
|
|
void bb_unsetenv(const char *key) FAST_FUNC;
|
|
void bb_unsetenv_and_free(char *key) FAST_FUNC;
|
|
void xunlink(const char *pathname) FAST_FUNC;
|
|
void xstat(const char *pathname, struct stat *buf) FAST_FUNC;
|
|
void xfstat(int fd, struct stat *buf, const char *errmsg) FAST_FUNC;
|
|
int open3_or_warn(const char *pathname, int flags, int mode) FAST_FUNC;
|
|
int open_or_warn(const char *pathname, int flags) FAST_FUNC;
|
|
int xopen3(const char *pathname, int flags, int mode) FAST_FUNC;
|
|
int xopen(const char *pathname, int flags) FAST_FUNC;
|
|
int xopen_nonblocking(const char *pathname) FAST_FUNC;
|
|
int xopen_as_uid_gid(const char *pathname, int flags, uid_t u, gid_t g) FAST_FUNC;
|
|
int open_or_warn_stdin(const char *pathname) FAST_FUNC;
|
|
int xopen_stdin(const char *pathname) FAST_FUNC;
|
|
void xrename(const char *oldpath, const char *newpath) FAST_FUNC;
|
|
int rename_or_warn(const char *oldpath, const char *newpath) FAST_FUNC;
|
|
off_t xlseek(int fd, off_t offset, int whence) FAST_FUNC;
|
|
int xmkstemp(char *template) FAST_FUNC;
|
|
off_t fdlength(int fd) FAST_FUNC;
|
|
|
|
uoff_t FAST_FUNC get_volume_size_in_bytes(int fd,
|
|
const char *override,
|
|
unsigned override_units,
|
|
int extend);
|
|
|
|
void xpipe(int *filedes) FAST_FUNC;
|
|
/* In this form code with pipes is much more readable */
|
|
struct fd_pair { int rd; int wr; };
|
|
#define piped_pair(pair) pipe(&((pair).rd))
|
|
#define xpiped_pair(pair) xpipe(&((pair).rd))
|
|
|
|
/* Useful for having small structure members/global variables */
|
|
typedef int8_t socktype_t;
|
|
typedef int8_t family_t;
|
|
struct BUG_too_small {
|
|
char BUG_socktype_t_too_small[(0
|
|
| SOCK_STREAM
|
|
| SOCK_DGRAM
|
|
| SOCK_RDM
|
|
| SOCK_SEQPACKET
|
|
| SOCK_RAW
|
|
) <= 127 ? 1 : -1];
|
|
char BUG_family_t_too_small[(0
|
|
| AF_UNSPEC
|
|
| AF_INET
|
|
| AF_INET6
|
|
| AF_UNIX
|
|
#ifdef AF_PACKET
|
|
| AF_PACKET
|
|
#endif
|
|
#ifdef AF_NETLINK
|
|
| AF_NETLINK
|
|
#endif
|
|
/* | AF_DECnet */
|
|
/* | AF_IPX */
|
|
) <= 127 ? 1 : -1];
|
|
};
|
|
|
|
|
|
int parse_datestr(const char *date_str, struct tm *ptm) FAST_FUNC;
|
|
time_t validate_tm_time(const char *date_str, struct tm *ptm) FAST_FUNC;
|
|
char *strftime_HHMMSS(char *buf, unsigned len, time_t *tp) FAST_FUNC;
|
|
char *strftime_YYYYMMDDHHMMSS(char *buf, unsigned len, time_t *tp) FAST_FUNC;
|
|
void xgettimeofday(struct timeval *tv) FAST_FUNC;
|
|
void xsettimeofday(const struct timeval *tv) FAST_FUNC;
|
|
|
|
|
|
int xsocket(int domain, int type, int protocol) FAST_FUNC;
|
|
void xbind(int sockfd, struct sockaddr *my_addr, socklen_t addrlen) FAST_FUNC;
|
|
void xlisten(int s, int backlog) FAST_FUNC;
|
|
void xconnect(int s, const struct sockaddr *s_addr, socklen_t addrlen) FAST_FUNC;
|
|
ssize_t xsendto(int s, const void *buf, size_t len, const struct sockaddr *to,
|
|
socklen_t tolen) FAST_FUNC;
|
|
|
|
int setsockopt_int(int fd, int level, int optname, int optval) FAST_FUNC;
|
|
int setsockopt_1(int fd, int level, int optname) FAST_FUNC;
|
|
int setsockopt_SOL_SOCKET_int(int fd, int optname, int optval) FAST_FUNC;
|
|
int setsockopt_SOL_SOCKET_1(int fd, int optname) FAST_FUNC;
|
|
/* SO_REUSEADDR allows a server to rebind to an address that is already
|
|
* "in use" by old connections to e.g. previous server instance which is
|
|
* killed or crashed. Without it bind will fail until all such connections
|
|
* time out. Linux does not allow multiple live binds on same ip:port
|
|
* regardless of SO_REUSEADDR (unlike some other flavors of Unix).
|
|
* Turn it on before you call bind(). */
|
|
void setsockopt_reuseaddr(int fd) FAST_FUNC; /* On Linux this never fails. */
|
|
int setsockopt_keepalive(int fd) FAST_FUNC;
|
|
int setsockopt_broadcast(int fd) FAST_FUNC;
|
|
int setsockopt_bindtodevice(int fd, const char *iface) FAST_FUNC;
|
|
int bb_getsockname(int sockfd, void *addr, socklen_t addrlen) FAST_FUNC;
|
|
/* NB: returns port in host byte order */
|
|
unsigned bb_lookup_port(const char *port, const char *protocol, unsigned default_port) FAST_FUNC;
|
|
#if ENABLE_FEATURE_ETC_SERVICES
|
|
# define bb_lookup_std_port(portstr, protocol, portnum) bb_lookup_port(portstr, protocol, portnum)
|
|
#else
|
|
# define bb_lookup_std_port(portstr, protocol, portnum) (portnum)
|
|
#endif
|
|
typedef struct len_and_sockaddr {
|
|
socklen_t len;
|
|
union {
|
|
struct sockaddr sa;
|
|
struct sockaddr_in sin;
|
|
#if ENABLE_FEATURE_IPV6
|
|
struct sockaddr_in6 sin6;
|
|
#endif
|
|
} u;
|
|
} len_and_sockaddr;
|
|
enum {
|
|
LSA_LEN_SIZE = offsetof(len_and_sockaddr, u),
|
|
LSA_SIZEOF_SA = sizeof(
|
|
union {
|
|
struct sockaddr sa;
|
|
struct sockaddr_in sin;
|
|
#if ENABLE_FEATURE_IPV6
|
|
struct sockaddr_in6 sin6;
|
|
#endif
|
|
}
|
|
)
|
|
};
|
|
/* Create stream socket, and allocate suitable lsa.
|
|
* (lsa of correct size and lsa->sa.sa_family (AF_INET/AF_INET6))
|
|
* af == AF_UNSPEC will result in trying to create IPv6 socket,
|
|
* and if kernel doesn't support it, fall back to IPv4.
|
|
* This is useful if you plan to bind to resulting local lsa.
|
|
*/
|
|
int xsocket_type(len_and_sockaddr **lsap, int af, int sock_type) FAST_FUNC;
|
|
int xsocket_stream(len_and_sockaddr **lsap) FAST_FUNC;
|
|
/* Create server socket bound to bindaddr:port. bindaddr can be NULL,
|
|
* numeric IP ("N.N.N.N") or numeric IPv6 address,
|
|
* and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT").
|
|
* Only if there is no suffix, port argument is used */
|
|
/* NB: these set SO_REUSEADDR before bind */
|
|
int create_and_bind_stream_or_die(const char *bindaddr, int port) FAST_FUNC;
|
|
int create_and_bind_dgram_or_die(const char *bindaddr, int port) FAST_FUNC;
|
|
int create_and_bind_to_netlink(int proto, int grp, unsigned rcvbuf) FAST_FUNC;
|
|
/* Create client TCP socket connected to peer:port. Peer cannot be NULL.
|
|
* Peer can be numeric IP ("N.N.N.N"), numeric IPv6 address or hostname,
|
|
* and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT").
|
|
* If there is no suffix, port argument is used */
|
|
int create_and_connect_stream_or_die(const char *peer, int port) FAST_FUNC;
|
|
/* Connect to peer identified by lsa */
|
|
int xconnect_stream(const len_and_sockaddr *lsa) FAST_FUNC;
|
|
/* Get local address of bound or accepted socket */
|
|
len_and_sockaddr *get_sock_lsa(int fd) FAST_FUNC RETURNS_MALLOC;
|
|
/* Get remote address of connected or accepted socket */
|
|
len_and_sockaddr *get_peer_lsa(int fd) FAST_FUNC RETURNS_MALLOC;
|
|
/* Return malloc'ed len_and_sockaddr with socket address of host:port
|
|
* Currently will return IPv4 or IPv6 sockaddrs only
|
|
* (depending on host), but in theory nothing prevents e.g.
|
|
* UNIX socket address being returned, IPX sockaddr etc...
|
|
* On error does bb_error_msg and returns NULL */
|
|
len_and_sockaddr* host2sockaddr(const char *host, int port) FAST_FUNC RETURNS_MALLOC;
|
|
/* Version which dies on error */
|
|
len_and_sockaddr* xhost2sockaddr(const char *host, int port) FAST_FUNC RETURNS_MALLOC;
|
|
len_and_sockaddr* xdotted2sockaddr(const char *host, int port) FAST_FUNC RETURNS_MALLOC;
|
|
/* Same, useful if you want to force family (e.g. IPv6) */
|
|
#if !ENABLE_FEATURE_IPV6
|
|
#define host_and_af2sockaddr(host, port, af) host2sockaddr((host), (port))
|
|
#define xhost_and_af2sockaddr(host, port, af) xhost2sockaddr((host), (port))
|
|
#else
|
|
len_and_sockaddr* host_and_af2sockaddr(const char *host, int port, sa_family_t af) FAST_FUNC RETURNS_MALLOC;
|
|
len_and_sockaddr* xhost_and_af2sockaddr(const char *host, int port, sa_family_t af) FAST_FUNC RETURNS_MALLOC;
|
|
#endif
|
|
/* Assign sin[6]_port member if the socket is an AF_INET[6] one,
|
|
* otherwise no-op. Useful for ftp.
|
|
* NB: does NOT do htons() internally, just direct assignment. */
|
|
void set_nport(struct sockaddr *sa, unsigned port) FAST_FUNC;
|
|
/* Retrieve sin[6]_port or return -1 for non-INET[6] lsa's */
|
|
int get_nport(const struct sockaddr *sa) FAST_FUNC;
|
|
/* Reverse DNS. Returns NULL on failure. */
|
|
char* xmalloc_sockaddr2host(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC;
|
|
/* This one doesn't append :PORTNUM */
|
|
char* xmalloc_sockaddr2host_noport(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC;
|
|
/* This one also doesn't fall back to dotted IP (returns NULL) */
|
|
char* xmalloc_sockaddr2hostonly_noport(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC;
|
|
/* inet_[ap]ton on steroids */
|
|
char* xmalloc_sockaddr2dotted(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC;
|
|
char* xmalloc_sockaddr2dotted_noport(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC;
|
|
// "old" (ipv4 only) API
|
|
// users: traceroute.c hostname.c - use _list_ of all IPs
|
|
struct hostent *xgethostbyname(const char *name) FAST_FUNC;
|
|
// Also mount.c and inetd.c are using gethostbyname(),
|
|
// + inet_common.c has additional IPv4-only stuff
|
|
|
|
|
|
struct tls_aes {
|
|
uint32_t key[60];
|
|
unsigned rounds;
|
|
};
|
|
#define TLS_MAX_MAC_SIZE 32
|
|
#define TLS_MAX_KEY_SIZE 32
|
|
#define TLS_MAX_IV_SIZE 4
|
|
struct tls_handshake_data; /* opaque */
|
|
typedef struct tls_state {
|
|
unsigned flags;
|
|
|
|
int ofd;
|
|
int ifd;
|
|
|
|
unsigned min_encrypted_len_on_read;
|
|
uint16_t cipher_id;
|
|
unsigned MAC_size;
|
|
unsigned key_size;
|
|
unsigned IV_size;
|
|
|
|
uint8_t *outbuf;
|
|
int outbuf_size;
|
|
|
|
int inbuf_size;
|
|
int ofs_to_buffered;
|
|
int buffered_size;
|
|
uint8_t *inbuf;
|
|
|
|
struct tls_handshake_data *hsd;
|
|
|
|
// RFC 5246
|
|
// sequence number
|
|
// Each connection state contains a sequence number, which is
|
|
// maintained separately for read and write states. The sequence
|
|
// number MUST be set to zero whenever a connection state is made the
|
|
// active state. Sequence numbers are of type uint64 and may not
|
|
// exceed 2^64-1.
|
|
/*uint64_t read_seq64_be;*/
|
|
uint64_t write_seq64_be;
|
|
|
|
/*uint8_t *server_write_MAC_key;*/
|
|
uint8_t *client_write_key;
|
|
uint8_t *server_write_key;
|
|
uint8_t *client_write_IV;
|
|
uint8_t *server_write_IV;
|
|
uint8_t client_write_MAC_key[TLS_MAX_MAC_SIZE];
|
|
uint8_t server_write_MAC_k__[TLS_MAX_MAC_SIZE];
|
|
uint8_t client_write_k__[TLS_MAX_KEY_SIZE];
|
|
uint8_t server_write_k__[TLS_MAX_KEY_SIZE];
|
|
uint8_t client_write_I_[TLS_MAX_IV_SIZE];
|
|
uint8_t server_write_I_[TLS_MAX_IV_SIZE];
|
|
|
|
struct tls_aes aes_encrypt;
|
|
struct tls_aes aes_decrypt;
|
|
uint8_t H[16]; //used by AES_GCM
|
|
} tls_state_t;
|
|
|
|
static inline tls_state_t *new_tls_state(void)
|
|
{
|
|
tls_state_t *tls = xzalloc(sizeof(*tls));
|
|
return tls;
|
|
}
|
|
void tls_handshake(tls_state_t *tls, const char *sni) FAST_FUNC;
|
|
#define TLSLOOP_EXIT_ON_LOCAL_EOF (1 << 0)
|
|
void tls_run_copy_loop(tls_state_t *tls, unsigned flags) FAST_FUNC;
|
|
|
|
|
|
void socket_want_pktinfo(int fd) FAST_FUNC;
|
|
ssize_t send_to_from(int fd, void *buf, size_t len, int flags,
|
|
const struct sockaddr *to,
|
|
const struct sockaddr *from,
|
|
socklen_t tolen) FAST_FUNC;
|
|
ssize_t recv_from_to(int fd, void *buf, size_t len, int flags,
|
|
struct sockaddr *from,
|
|
struct sockaddr *to,
|
|
socklen_t sa_size) FAST_FUNC;
|
|
|
|
uint16_t inet_cksum(const void *addr, int len) FAST_FUNC;
|
|
int parse_pasv_epsv(char *buf) FAST_FUNC;
|
|
|
|
/* 0 if argv[0] is NULL: */
|
|
unsigned string_array_len(char **argv) FAST_FUNC;
|
|
void overlapping_strcpy(char *dst, const char *src) FAST_FUNC;
|
|
char *safe_strncpy(char *dst, const char *src, size_t size) FAST_FUNC;
|
|
char *strncpy_IFNAMSIZ(char *dst, const char *src) FAST_FUNC;
|
|
unsigned count_strstr(const char *str, const char *sub) FAST_FUNC;
|
|
char *xmalloc_substitute_string(const char *src, int count, const char *sub, const char *repl) FAST_FUNC;
|
|
/* Guaranteed to NOT be a macro (smallest code). Saves nearly 2k on uclibc.
|
|
* But potentially slow, don't use in one-billion-times loops */
|
|
int bb_putchar(int ch) FAST_FUNC;
|
|
/* Note: does not use stdio, writes to fd 2 directly */
|
|
int bb_putchar_stderr(char ch) FAST_FUNC;
|
|
int fputs_stdout(const char *s) FAST_FUNC;
|
|
char *xasprintf(const char *format, ...) __attribute__ ((format(printf, 1, 2))) FAST_FUNC RETURNS_MALLOC;
|
|
char *auto_string(char *str) FAST_FUNC;
|
|
// gcc-4.1.1 still isn't good enough at optimizing it
|
|
// (+200 bytes compared to macro)
|
|
//static ALWAYS_INLINE
|
|
//int LONE_DASH(const char *s) { return s[0] == '-' && !s[1]; }
|
|
//static ALWAYS_INLINE
|
|
//int NOT_LONE_DASH(const char *s) { return s[0] != '-' || s[1]; }
|
|
#define LONE_DASH(s) ((s)[0] == '-' && !(s)[1])
|
|
#define NOT_LONE_DASH(s) ((s)[0] != '-' || (s)[1])
|
|
#define LONE_CHAR(s,c) ((s)[0] == (c) && !(s)[1])
|
|
#define NOT_LONE_CHAR(s,c) ((s)[0] != (c) || (s)[1])
|
|
#define DOT_OR_DOTDOT(s) ((s)[0] == '.' && (!(s)[1] || ((s)[1] == '.' && !(s)[2])))
|
|
|
|
typedef struct uni_stat_t {
|
|
unsigned byte_count;
|
|
unsigned unicode_count;
|
|
unsigned unicode_width;
|
|
} uni_stat_t;
|
|
/* Returns a string with unprintable chars replaced by '?' or
|
|
* SUBST_WCHAR. This function is unicode-aware. */
|
|
const char* FAST_FUNC printable_string(const char *str);
|
|
const char* FAST_FUNC printable_string2(uni_stat_t *stats, const char *str);
|
|
/* Prints unprintable char ch as ^C or M-c to file
|
|
* (M-c is used only if ch is ORed with PRINTABLE_META),
|
|
* else it is printed as-is (except for ch = 0x9b) */
|
|
enum { PRINTABLE_META = 0x100 };
|
|
void fputc_printable(int ch, FILE *file) FAST_FUNC;
|
|
/* Return a string that is the printable representation of character ch.
|
|
* Buffer must hold at least four characters. */
|
|
enum {
|
|
VISIBLE_ENDLINE = 1 << 0,
|
|
VISIBLE_SHOW_TABS = 1 << 1,
|
|
};
|
|
void visible(unsigned ch, char *buf, int flags) FAST_FUNC;
|
|
|
|
extern ssize_t safe_read(int fd, void *buf, size_t count) FAST_FUNC;
|
|
extern ssize_t nonblock_immune_read(int fd, void *buf, size_t count) FAST_FUNC;
|
|
// NB: will return short read on error, not -1,
|
|
// if some data was read before error occurred
|
|
extern ssize_t full_read(int fd, void *buf, size_t count) FAST_FUNC;
|
|
extern void xread(int fd, void *buf, size_t count) FAST_FUNC;
|
|
extern unsigned char xread_char(int fd) FAST_FUNC;
|
|
extern ssize_t read_close(int fd, void *buf, size_t maxsz) FAST_FUNC;
|
|
extern ssize_t open_read_close(const char *filename, void *buf, size_t maxsz) FAST_FUNC;
|
|
// Reads one line a-la fgets (but doesn't save terminating '\n').
|
|
// Reads byte-by-byte. Useful when it is important to not read ahead.
|
|
// Bytes are appended to pfx (which must be malloced, or NULL).
|
|
extern char *xmalloc_reads(int fd, size_t *maxsz_p) FAST_FUNC;
|
|
/* Reads block up to *maxsz_p (default: INT_MAX - 4095) */
|
|
extern void *xmalloc_read(int fd, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
|
|
extern void *xmalloc_read_with_initial_buf(int fd, size_t *maxsz_p, char *buf, size_t total) FAST_FUNC;
|
|
/* Returns NULL if file can't be opened (default max size: INT_MAX - 4095) */
|
|
extern void *xmalloc_open_read_close(const char *filename, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
|
|
/* Never returns NULL */
|
|
extern void *xmalloc_xopen_read_close(const char *filename, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
|
|
|
|
#if defined(ARG_MAX) && (ARG_MAX >= 60*1024 || !defined(_SC_ARG_MAX))
|
|
/* Use _constant_ maximum if: defined && (big enough || no variable one exists) */
|
|
# define bb_arg_max() ((unsigned)ARG_MAX)
|
|
#elif defined(_SC_ARG_MAX)
|
|
/* Else use variable one (a bit more expensive) */
|
|
unsigned bb_arg_max(void) FAST_FUNC;
|
|
#else
|
|
/* If all else fails */
|
|
# define bb_arg_max() ((unsigned)(32 * 1024))
|
|
#endif
|
|
unsigned bb_clk_tck(void) FAST_FUNC;
|
|
|
|
#define SEAMLESS_COMPRESSION (0 \
|
|
|| ENABLE_FEATURE_SEAMLESS_XZ \
|
|
|| ENABLE_FEATURE_SEAMLESS_LZMA \
|
|
|| ENABLE_FEATURE_SEAMLESS_BZ2 \
|
|
|| ENABLE_FEATURE_SEAMLESS_GZ \
|
|
|| ENABLE_FEATURE_SEAMLESS_Z)
|
|
|
|
#if SEAMLESS_COMPRESSION
|
|
/* Autodetects gzip/bzip2 formats. fd may be in the middle of the file! */
|
|
int setup_unzip_on_fd(int fd, int fail_if_not_compressed) FAST_FUNC;
|
|
/* Autodetects .gz etc */
|
|
extern int open_zipped(const char *fname, int fail_if_not_compressed) FAST_FUNC;
|
|
extern void *xmalloc_open_zipped_read_close(const char *fname, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
|
|
#else
|
|
# define setup_unzip_on_fd(...) (0)
|
|
# define open_zipped(fname, fail_if_not_compressed) open((fname), O_RDONLY);
|
|
# define xmalloc_open_zipped_read_close(fname, maxsz_p) xmalloc_open_read_close((fname), (maxsz_p))
|
|
#endif
|
|
/* lzma has no signature, need a little helper. NB: exist only for ENABLE_FEATURE_SEAMLESS_LZMA=y */
|
|
void setup_lzma_on_fd(int fd) FAST_FUNC;
|
|
|
|
extern ssize_t safe_write(int fd, const void *buf, size_t count) FAST_FUNC;
|
|
// NB: will return short write on error, not -1,
|
|
// if some data was written before error occurred
|
|
extern ssize_t full_write(int fd, const void *buf, size_t count) FAST_FUNC;
|
|
extern void xwrite(int fd, const void *buf, size_t count) FAST_FUNC;
|
|
extern void xwrite_str(int fd, const char *str) FAST_FUNC;
|
|
extern ssize_t full_write1_str(const char *str) FAST_FUNC;
|
|
extern ssize_t full_write2_str(const char *str) FAST_FUNC;
|
|
extern void xopen_xwrite_close(const char* file, const char *str) FAST_FUNC;
|
|
|
|
/* Close fd, but check for failures (some types of write errors) */
|
|
extern void xclose(int fd) FAST_FUNC;
|
|
|
|
/* Reads and prints to stdout till eof, then closes FILE. Exits on error: */
|
|
extern void xprint_and_close_file(FILE *file) FAST_FUNC;
|
|
|
|
/* Reads a line from a text file, up to a newline or NUL byte, inclusive.
|
|
* Returns malloc'ed char*. If end is NULL '\n' isn't considered
|
|
* end of line. If end isn't NULL, length of the chunk is stored in it.
|
|
* Returns NULL if EOF/error.
|
|
*/
|
|
extern char *bb_get_chunk_from_file(FILE *file, size_t *end) FAST_FUNC;
|
|
/* Reads up to (and including) TERMINATING_STRING: */
|
|
extern char *xmalloc_fgets_str(FILE *file, const char *terminating_string) FAST_FUNC RETURNS_MALLOC;
|
|
/* Same, with limited max size, and returns the length (excluding NUL): */
|
|
extern char *xmalloc_fgets_str_len(FILE *file, const char *terminating_string, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
|
|
/* Chops off TERMINATING_STRING from the end: */
|
|
extern char *xmalloc_fgetline_str(FILE *file, const char *terminating_string) FAST_FUNC RETURNS_MALLOC;
|
|
/* Reads up to (and including) "\n" or NUL byte: */
|
|
extern char *xmalloc_fgets(FILE *file) FAST_FUNC RETURNS_MALLOC;
|
|
/* Chops off '\n' from the end, unlike fgets: */
|
|
extern char *xmalloc_fgetline(FILE *file) FAST_FUNC RETURNS_MALLOC;
|
|
/* Same, but doesn't try to conserve space (may have some slack after the end) */
|
|
/* extern char *xmalloc_fgetline_fast(FILE *file) FAST_FUNC RETURNS_MALLOC; */
|
|
|
|
void die_if_ferror(FILE *file, const char *msg) FAST_FUNC;
|
|
void die_if_ferror_stdout(void) FAST_FUNC;
|
|
int fflush_all(void) FAST_FUNC;
|
|
void fflush_stdout_and_exit(int retval) NORETURN FAST_FUNC;
|
|
int fclose_if_not_stdin(FILE *file) FAST_FUNC;
|
|
FILE* xfopen(const char *filename, const char *mode) FAST_FUNC;
|
|
/* Prints warning to stderr and returns NULL on failure: */
|
|
FILE* fopen_or_warn(const char *filename, const char *mode) FAST_FUNC;
|
|
/* "Opens" stdin if filename is special, else just opens file: */
|
|
FILE* xfopen_stdin(const char *filename) FAST_FUNC;
|
|
FILE* fopen_or_warn_stdin(const char *filename) FAST_FUNC;
|
|
FILE* fopen_for_read(const char *path) FAST_FUNC;
|
|
FILE* xfopen_for_read(const char *path) FAST_FUNC;
|
|
FILE* fopen_for_write(const char *path) FAST_FUNC;
|
|
FILE* xfopen_for_write(const char *path) FAST_FUNC;
|
|
FILE* xfdopen_for_read(int fd) FAST_FUNC;
|
|
FILE* xfdopen_for_write(int fd) FAST_FUNC;
|
|
|
|
int bb_pstrcmp(const void *a, const void *b) /* not FAST_FUNC! */;
|
|
void qsort_string_vector(char **sv, unsigned count) FAST_FUNC;
|
|
|
|
/* Wrapper which restarts poll on EINTR or ENOMEM.
|
|
* On other errors complains [perror("poll")] and returns.
|
|
* Warning! May take (much) longer than timeout_ms to return!
|
|
* If this is a problem, use bare poll and open-code EINTR/ENOMEM handling */
|
|
int safe_poll(struct pollfd *ufds, nfds_t nfds, int timeout_ms) FAST_FUNC;
|
|
|
|
char *safe_gethostname(void) FAST_FUNC;
|
|
|
|
/* Convert each alpha char in str to lower-case */
|
|
char* str_tolower(char *str) FAST_FUNC;
|
|
|
|
char *utoa(unsigned n) FAST_FUNC;
|
|
char *itoa(int n) FAST_FUNC;
|
|
/* Returns a pointer past the formatted number, does NOT null-terminate */
|
|
char *utoa_to_buf(unsigned n, char *buf, unsigned buflen) FAST_FUNC;
|
|
char *itoa_to_buf(int n, char *buf, unsigned buflen) FAST_FUNC;
|
|
/* Intelligent formatters of bignums */
|
|
char *smart_ulltoa4(unsigned long long ul, char buf[4], const char *scale) FAST_FUNC;
|
|
char *smart_ulltoa5(unsigned long long ul, char buf[5], const char *scale) FAST_FUNC;
|
|
/* If block_size == 0, display size without fractional part,
|
|
* else display (size * block_size) with one decimal digit.
|
|
* If display_unit == 0, show value no bigger than 1024 with suffix (K,M,G...),
|
|
* else divide by display_unit and do not use suffix.
|
|
* Returns "auto pointer" */
|
|
#define HUMAN_READABLE_MAX_WIDTH 7 /* "1024.0G" */
|
|
#define HUMAN_READABLE_MAX_WIDTH_STR "7"
|
|
const char *make_human_readable_str(unsigned long long size,
|
|
unsigned long block_size, unsigned long display_unit) FAST_FUNC;
|
|
/* Put a string of hex bytes ("1b2e66fe"...), return advanced pointer */
|
|
char *bin2hex(char *dst, const char *src, int count) FAST_FUNC;
|
|
/* Reverse */
|
|
char* hex2bin(char *dst, const char *src, int count) FAST_FUNC;
|
|
|
|
/* Generate a UUID */
|
|
void generate_uuid(uint8_t *buf) FAST_FUNC;
|
|
|
|
/* Last element is marked by mult == 0 */
|
|
struct suffix_mult {
|
|
char suffix[4];
|
|
uint32_t mult;
|
|
};
|
|
#define ALIGN_SUFFIX ALIGN4
|
|
extern const struct suffix_mult bkm_suffixes[];
|
|
#define km_suffixes (bkm_suffixes + 1)
|
|
extern const struct suffix_mult cwbkMG_suffixes[];
|
|
#define kMG_suffixes (cwbkMG_suffixes + 3)
|
|
extern const struct suffix_mult kmg_i_suffixes[];
|
|
|
|
#include "xatonum.h"
|
|
/* Specialized: */
|
|
|
|
/* Using xatoi() instead of naive atoi() is not always convenient -
|
|
* in many places people want *non-negative* values, but store them
|
|
* in signed int. Therefore we need this one:
|
|
* dies if input is not in [0, INT_MAX] range. Also will reject '-0' etc.
|
|
* It should really be named xatoi_nonnegative (since it allows 0),
|
|
* but that would be too long.
|
|
*/
|
|
int xatoi_positive(const char *numstr) FAST_FUNC;
|
|
|
|
/* Useful for reading port numbers */
|
|
uint16_t xatou16(const char *numstr) FAST_FUNC;
|
|
|
|
#if ENABLE_FLOAT_DURATION
|
|
typedef double duration_t;
|
|
void sleep_for_duration(duration_t duration) FAST_FUNC;
|
|
#define DURATION_FMT "f"
|
|
#else
|
|
typedef unsigned duration_t;
|
|
#define sleep_for_duration(duration) sleep(duration)
|
|
#define DURATION_FMT "u"
|
|
#endif
|
|
duration_t parse_duration_str(char *str) FAST_FUNC;
|
|
|
|
/* These parse entries in /etc/passwd and /etc/group. This is desirable
|
|
* for BusyBox since we want to avoid using the glibc NSS stuff, which
|
|
* increases target size and is often not needed on embedded systems. */
|
|
long xuname2uid(const char *name) FAST_FUNC;
|
|
long xgroup2gid(const char *name) FAST_FUNC;
|
|
/* wrapper: allows string to contain numeric uid or gid */
|
|
unsigned long get_ug_id(const char *s, long FAST_FUNC (*xname2id)(const char *)) FAST_FUNC;
|
|
struct bb_uidgid_t {
|
|
uid_t uid;
|
|
gid_t gid;
|
|
};
|
|
/* always sets uid and gid; returns 0 on failure */
|
|
int get_uidgid(struct bb_uidgid_t*, const char*) FAST_FUNC;
|
|
/* always sets uid and gid; exits on failure */
|
|
void xget_uidgid(struct bb_uidgid_t*, const char*) FAST_FUNC;
|
|
/* chown-like handling of "user[:[group]" */
|
|
void parse_chown_usergroup_or_die(struct bb_uidgid_t *u, char *user_group) FAST_FUNC;
|
|
struct passwd* xgetpwnam(const char *name) FAST_FUNC;
|
|
struct group* xgetgrnam(const char *name) FAST_FUNC;
|
|
struct passwd* xgetpwuid(uid_t uid) FAST_FUNC;
|
|
struct group* xgetgrgid(gid_t gid) FAST_FUNC;
|
|
char* xuid2uname(uid_t uid) FAST_FUNC;
|
|
char* xgid2group(gid_t gid) FAST_FUNC;
|
|
char* uid2uname(uid_t uid) FAST_FUNC;
|
|
char* gid2group(gid_t gid) FAST_FUNC;
|
|
char* uid2uname_utoa(uid_t uid) FAST_FUNC;
|
|
char* gid2group_utoa(gid_t gid) FAST_FUNC;
|
|
/* versions which cache results (useful for ps, ls etc) */
|
|
const char* get_cached_username(uid_t uid) FAST_FUNC;
|
|
const char* get_cached_groupname(gid_t gid) FAST_FUNC;
|
|
void clear_username_cache(void) FAST_FUNC;
|
|
/* internally usernames are saved in fixed-sized char[] buffers */
|
|
enum { USERNAME_MAX_SIZE = 32 - sizeof(uid_t) };
|
|
#if ENABLE_FEATURE_CHECK_NAMES
|
|
void die_if_bad_username(const char* name) FAST_FUNC;
|
|
#else
|
|
#define die_if_bad_username(name) ((void)(name))
|
|
#endif
|
|
/*
|
|
* Returns (-1) terminated malloced result of getgroups().
|
|
* Reallocs group_array (useful for repeated calls).
|
|
* ngroups is an initial size of array. It is rounded up to 32 for realloc.
|
|
* ngroups is updated on return.
|
|
* ngroups can be NULL: bb_getgroups(NULL, NULL) is valid usage.
|
|
* Dies on errors (on Linux, only xrealloc can cause this, not internal getgroups call).
|
|
*/
|
|
gid_t *bb_getgroups(int *ngroups, gid_t *group_array) FAST_FUNC;
|
|
|
|
#if ENABLE_FEATURE_UTMP
|
|
void FAST_FUNC write_new_utmp(pid_t pid, int new_type, const char *tty_name, const char *username, const char *hostname);
|
|
void FAST_FUNC update_utmp(pid_t pid, int new_type, const char *tty_name, const char *username, const char *hostname);
|
|
void FAST_FUNC update_utmp_DEAD_PROCESS(pid_t pid);
|
|
#else
|
|
# define write_new_utmp(pid, new_type, tty_name, username, hostname) ((void)0)
|
|
# define update_utmp(pid, new_type, tty_name, username, hostname) ((void)0)
|
|
# define update_utmp_DEAD_PROCESS(pid) ((void)0)
|
|
#endif
|
|
|
|
|
|
int file_is_executable(const char *name) FAST_FUNC;
|
|
char *find_executable(const char *filename, char **PATHp) FAST_FUNC;
|
|
int executable_exists(const char *filename) FAST_FUNC;
|
|
|
|
/* BB_EXECxx always execs (it's not doing NOFORK/NOEXEC stuff),
|
|
* but it may exec busybox and call applet instead of searching PATH.
|
|
*/
|
|
#if ENABLE_FEATURE_PREFER_APPLETS
|
|
int BB_EXECVP(const char *file, char *const argv[]) FAST_FUNC;
|
|
#define BB_EXECLP(prog,cmd,...) \
|
|
do { \
|
|
if (find_applet_by_name(prog) >= 0) \
|
|
execlp(bb_busybox_exec_path, cmd, __VA_ARGS__); \
|
|
execlp(prog, cmd, __VA_ARGS__); \
|
|
} while (0)
|
|
#else
|
|
#define BB_EXECVP(prog,cmd) execvp(prog,cmd)
|
|
#define BB_EXECLP(prog,cmd,...) execlp(prog,cmd,__VA_ARGS__)
|
|
#endif
|
|
void BB_EXECVP_or_die(char **argv) NORETURN FAST_FUNC;
|
|
|
|
/* xvfork() can't be a _function_, return after vfork in child mangles stack
|
|
* in the parent. It must be a macro. */
|
|
#define xvfork() \
|
|
({ \
|
|
pid_t bb__xvfork_pid = vfork(); \
|
|
if (bb__xvfork_pid < 0) \
|
|
bb_simple_perror_msg_and_die("vfork"); \
|
|
bb__xvfork_pid; \
|
|
})
|
|
#if BB_MMU
|
|
pid_t xfork(void) FAST_FUNC;
|
|
#endif
|
|
void xvfork_parent_waits_and_exits(void) FAST_FUNC;
|
|
|
|
/* NOMMU friendy fork+exec: */
|
|
pid_t spawn(char **argv) FAST_FUNC;
|
|
pid_t xspawn(char **argv) FAST_FUNC;
|
|
|
|
pid_t safe_waitpid(pid_t pid, int *wstat, int options) FAST_FUNC;
|
|
pid_t wait_any_nohang(int *wstat) FAST_FUNC;
|
|
/* wait4pid: unlike waitpid, waits ONLY for one process.
|
|
* Returns sig + 0x180 if child is killed by signal.
|
|
* It's safe to pass negative 'pids' from failed [v]fork -
|
|
* wait4pid will return -1 (and will not clobber [v]fork's errno).
|
|
* IOW: rc = wait4pid(spawn(argv));
|
|
* if (rc < 0) bb_perror_msg("%s", argv[0]);
|
|
* if (rc > 0) bb_error_msg("exit code: %d", rc & 0xff);
|
|
*/
|
|
int wait4pid(pid_t pid) FAST_FUNC;
|
|
int wait_for_exitstatus(pid_t pid) FAST_FUNC;
|
|
/************************************************************************/
|
|
/* spawn_and_wait/run_nofork_applet/run_applet_no_and_exit need to work */
|
|
/* carefully together to reinit some global state while not disturbing */
|
|
/* other. Be careful if you change them. Consult docs/nofork_noexec.txt */
|
|
/************************************************************************/
|
|
/* Same as wait4pid(spawn(argv)), but with NOFORK/NOEXEC if configured: */
|
|
int spawn_and_wait(char **argv) FAST_FUNC;
|
|
/* Does NOT check that applet is NOFORK, just blindly runs it */
|
|
int run_nofork_applet(int applet_no, char **argv) FAST_FUNC;
|
|
void run_noexec_applet_and_exit(int a, const char *name, char **argv) NORETURN FAST_FUNC;
|
|
#ifndef BUILD_INDIVIDUAL
|
|
int find_applet_by_name(const char *name) FAST_FUNC;
|
|
void run_applet_no_and_exit(int a, const char *name, char **argv) NORETURN FAST_FUNC;
|
|
#endif
|
|
void show_usage_if_dash_dash_help(int applet_no, char **argv) FAST_FUNC;
|
|
#if defined(__linux__)
|
|
void set_task_comm(const char *comm) FAST_FUNC;
|
|
#else
|
|
# define set_task_comm(name) ((void)0)
|
|
#endif
|
|
|
|
/* Helpers for daemonization.
|
|
*
|
|
* bb_daemonize(flags) = daemonize, does not compile on NOMMU
|
|
*
|
|
* bb_daemonize_or_rexec(flags, argv) = daemonizes on MMU (and ignores argv),
|
|
* rexec's itself on NOMMU with argv passed as command line.
|
|
* Thus bb_daemonize_or_rexec may cause your <applet>_main() to be re-executed
|
|
* from the start. (It will detect it and not reexec again second time).
|
|
* You have to audit carefully that you don't do something twice as a result
|
|
* (opening files/sockets, parsing config files etc...)!
|
|
*
|
|
* Both of the above will redirect fd 0,1,2 to /dev/null and drop ctty
|
|
* (will do setsid()).
|
|
*
|
|
* fork_or_rexec(argv) = bare-bones fork on MMU,
|
|
* "vfork + re-exec ourself" on NOMMU. No fd redirection, no setsid().
|
|
* On MMU ignores argv.
|
|
*
|
|
* Helper for network daemons in foreground mode:
|
|
*
|
|
* bb_sanitize_stdio() = make sure that fd 0,1,2 are opened by opening them
|
|
* to /dev/null if they are not.
|
|
*/
|
|
enum {
|
|
DAEMON_CHDIR_ROOT = 1 << 0,
|
|
DAEMON_DEVNULL_STDIO = 1 << 1,
|
|
DAEMON_CLOSE_EXTRA_FDS = 1 << 2,
|
|
DAEMON_ONLY_SANITIZE = 1 << 3, /* internal use */
|
|
//DAEMON_DOUBLE_FORK = 1 << 4, /* double fork to avoid controlling tty */
|
|
};
|
|
#if BB_MMU
|
|
enum { re_execed = 0 };
|
|
# define fork_or_rexec(argv) xfork()
|
|
# define bb_daemonize_or_rexec(flags, argv) bb_daemonize_or_rexec(flags)
|
|
# define bb_daemonize(flags) bb_daemonize_or_rexec(flags, bogus)
|
|
#else
|
|
extern bool re_execed;
|
|
/* Note: re_exec() and fork_or_rexec() do argv[0][0] |= 0x80 on NOMMU!
|
|
* _Parent_ needs to undo it if it doesn't want to have argv[0] mangled.
|
|
*/
|
|
void re_exec(char **argv) NORETURN FAST_FUNC;
|
|
pid_t fork_or_rexec(char **argv) FAST_FUNC;
|
|
int BUG_fork_is_unavailable_on_nommu(void) FAST_FUNC;
|
|
int BUG_daemon_is_unavailable_on_nommu(void) FAST_FUNC;
|
|
void BUG_bb_daemonize_is_unavailable_on_nommu(void) FAST_FUNC;
|
|
# define fork() BUG_fork_is_unavailable_on_nommu()
|
|
# define xfork() BUG_fork_is_unavailable_on_nommu()
|
|
# define daemon(a,b) BUG_daemon_is_unavailable_on_nommu()
|
|
# define bb_daemonize(a) BUG_bb_daemonize_is_unavailable_on_nommu()
|
|
#endif
|
|
void bb_daemonize_or_rexec(int flags, char **argv) FAST_FUNC;
|
|
void bb_sanitize_stdio(void) FAST_FUNC;
|
|
#define bb_daemon_helper(arg) bb_daemonize_or_rexec((arg) | DAEMON_ONLY_SANITIZE, NULL)
|
|
/* Clear dangerous stuff, set PATH. Return 1 if was run by different user. */
|
|
int sanitize_env_if_suid(void) FAST_FUNC;
|
|
|
|
|
|
/* For top, ps. Some argv[i] are replaced by malloced "-opt" strings */
|
|
void make_all_argv_opts(char **argv) FAST_FUNC;
|
|
char* single_argv(char **argv) FAST_FUNC;
|
|
extern const char *const bb_argv_dash[]; /* { "-", NULL } */
|
|
extern uint32_t option_mask32;
|
|
uint32_t getopt32(char **argv, const char *applet_opts, ...) FAST_FUNC;
|
|
# define No_argument "\0"
|
|
# define Required_argument "\001"
|
|
# define Optional_argument "\002"
|
|
#if ENABLE_LONG_OPTS
|
|
uint32_t getopt32long(char **argv, const char *optstring, const char *longopts, ...) FAST_FUNC;
|
|
#else
|
|
#define getopt32long(argv,optstring,longopts,...) \
|
|
getopt32(argv,optstring,##__VA_ARGS__)
|
|
#endif
|
|
/* BSD-derived getopt() functions require that optind be set to 1 in
|
|
* order to reset getopt() state. This used to be generally accepted
|
|
* way of resetting getopt(). However, glibc's getopt()
|
|
* has additional getopt() state beyond optind (specifically, glibc
|
|
* extensions such as '+' and '-' at the start of the string), and requires
|
|
* that optind be set to zero to reset its state. BSD-derived versions
|
|
* of getopt() misbehaved if optind is set to 0 in order to reset getopt(),
|
|
* and glibc's getopt() used to coredump if optind is set 1 in order
|
|
* to reset getopt().
|
|
* Then BSD introduced additional variable "optreset" which should be
|
|
* set to 1 in order to reset getopt(). Sigh. Standards, anyone?
|
|
*
|
|
* By ~2008, OpenBSD 3.4 was changed to survive glibc-like optind = 0
|
|
* (to interpret it as if optreset was set).
|
|
*/
|
|
#if 1 /*def __GLIBC__*/
|
|
#define GETOPT_RESET() (optind = 0)
|
|
#else /* BSD style */
|
|
#define GETOPT_RESET() (optind = 1)
|
|
#endif
|
|
|
|
|
|
/* Having next pointer as a first member allows easy creation
|
|
* of "llist-compatible" structs, and using llist_FOO functions
|
|
* on them.
|
|
*/
|
|
typedef struct llist_t {
|
|
struct llist_t *link;
|
|
char *data;
|
|
} llist_t;
|
|
void llist_add_to(llist_t **old_head, void *data) FAST_FUNC;
|
|
void llist_add_to_end(llist_t **list_head, void *data) FAST_FUNC;
|
|
void *llist_pop(llist_t **elm) FAST_FUNC;
|
|
void llist_unlink(llist_t **head, llist_t *elm) FAST_FUNC;
|
|
void llist_free(llist_t *elm, void (*freeit)(void *data)) FAST_FUNC;
|
|
llist_t *llist_rev(llist_t *list) FAST_FUNC;
|
|
llist_t *llist_find_str(llist_t *first, const char *str) FAST_FUNC;
|
|
/* BTW, surprisingly, changing API to
|
|
* llist_t *llist_add_to(llist_t *old_head, void *data)
|
|
* etc does not result in smaller code... */
|
|
|
|
/* start_stop_daemon and udhcpc are special - they want
|
|
* to create pidfiles regardless of FEATURE_PIDFILE */
|
|
#if ENABLE_FEATURE_PIDFILE || defined(WANT_PIDFILE)
|
|
/* True only if we created pidfile which is *file*, not /dev/null etc */
|
|
extern smallint wrote_pidfile;
|
|
void write_pidfile(const char *path) FAST_FUNC;
|
|
void write_pidfile_std_path_and_ext(const char *path) FAST_FUNC;
|
|
void remove_pidfile_std_path_and_ext(const char *path) FAST_FUNC;
|
|
#define remove_pidfile(path) do { if (wrote_pidfile) unlink(path); } while (0)
|
|
#else
|
|
enum { wrote_pidfile = 0 };
|
|
#define write_pidfile_std_path_and_ext(path) ((void)0)
|
|
#define remove_pidfile_std_path_and_ext(path) ((void)0)
|
|
#define write_pidfile(path) ((void)0)
|
|
#define remove_pidfile(path) ((void)0)
|
|
#endif
|
|
|
|
enum {
|
|
LOGMODE_NONE = 0,
|
|
LOGMODE_STDIO = (1 << 0),
|
|
LOGMODE_SYSLOG = (1 << 1) * ENABLE_FEATURE_SYSLOG,
|
|
LOGMODE_BOTH = LOGMODE_SYSLOG + LOGMODE_STDIO,
|
|
};
|
|
extern const char *msg_eol;
|
|
extern smallint logmode;
|
|
extern uint8_t xfunc_error_retval;
|
|
extern void (*die_func)(void);
|
|
void xfunc_die(void) NORETURN FAST_FUNC;
|
|
void bb_show_usage(void) NORETURN FAST_FUNC;
|
|
void bb_error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))) FAST_FUNC;
|
|
void bb_simple_error_msg(const char *s) FAST_FUNC;
|
|
void bb_error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))) FAST_FUNC;
|
|
void bb_simple_error_msg_and_die(const char *s) NORETURN FAST_FUNC;
|
|
void bb_perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))) FAST_FUNC;
|
|
void bb_simple_perror_msg(const char *s) FAST_FUNC;
|
|
void bb_perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))) FAST_FUNC;
|
|
void bb_simple_perror_msg_and_die(const char *s) NORETURN FAST_FUNC;
|
|
void bb_herror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))) FAST_FUNC;
|
|
void bb_simple_herror_msg(const char *s) FAST_FUNC;
|
|
void bb_herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))) FAST_FUNC;
|
|
void bb_simple_herror_msg_and_die(const char *s) NORETURN FAST_FUNC;
|
|
void bb_perror_nomsg_and_die(void) NORETURN FAST_FUNC;
|
|
void bb_perror_nomsg(void) FAST_FUNC;
|
|
void bb_verror_msg(const char *s, va_list p, const char *strerr) FAST_FUNC;
|
|
void bb_die_memory_exhausted(void) NORETURN FAST_FUNC;
|
|
void bb_logenv_override(void) FAST_FUNC;
|
|
|
|
#if ENABLE_FEATURE_SYSLOG_INFO
|
|
void bb_info_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))) FAST_FUNC;
|
|
void bb_simple_info_msg(const char *s) FAST_FUNC;
|
|
void bb_vinfo_msg(const char *s, va_list p) FAST_FUNC;
|
|
#else
|
|
#define bb_info_msg bb_error_msg
|
|
#define bb_simple_info_msg bb_simple_error_msg
|
|
#define bb_vinfo_msg(s,p) bb_verror_msg(s,p,NULL)
|
|
#endif
|
|
|
|
#if ENABLE_WARN_SIMPLE_MSG
|
|
/* If enabled, cause calls to bb_error_msg() et al that only take a single
|
|
* parameter to generate a warning.
|
|
*/
|
|
static inline void __attribute__ ((deprecated("use bb_simple_error_msg instead")))
|
|
bb_not_simple_error_msg(const char *s) { bb_simple_error_msg(s); }
|
|
static inline void __attribute__ ((deprecated("use bb_simple_error_msg_and_die instead"))) NORETURN
|
|
bb_not_simple_error_msg_and_die(const char *s) { bb_simple_error_msg_and_die(s); }
|
|
static inline void __attribute__ ((deprecated("use bb_simple_perror_msg instead")))
|
|
bb_not_simple_perror_msg(const char *s) { bb_simple_perror_msg(s); }
|
|
static inline void __attribute__ ((deprecated("use bb_simple_perror_msg_and_die instead"))) NORETURN
|
|
bb_not_simple_perror_msg_and_die(const char *s) { bb_simple_perror_msg_and_die(s); }
|
|
static inline void __attribute__ ((deprecated("use bb_simple_herror_msg instead")))
|
|
bb_not_simple_herror_msg(const char *s) { bb_simple_herror_msg(s); }
|
|
static inline void __attribute__ ((deprecated("use bb_simple_herror_msg_and_die instead"))) NORETURN
|
|
bb_not_simple_herror_msg_and_die(const char *s) { bb_simple_herror_msg_and_die(s); }
|
|
static inline void __attribute__ ((deprecated("use bb_simple_info_msg instead")))
|
|
bb_not_simple_info_msg(const char *s) { bb_simple_info_msg(s); }
|
|
/* Override bb_error_msg() and related functions with macros that will
|
|
* substitute them for the equivalent bb_not_simple_error_msg() function when
|
|
* they are used with only a single parameter. Macro approach inspired by
|
|
* https://gustedt.wordpress.com/2010/06/08/detect-empty-macro-arguments and
|
|
* https://gustedt.wordpress.com/2010/06/03/default-arguments-for-c99
|
|
*/
|
|
#define _ARG18(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, _17, ...) _17
|
|
#define BB_MSG_KIND(...) _ARG18(__VA_ARGS__, , , , , , , , , , , , , , , , , _not_simple)
|
|
#define _BB_MSG(name, kind, ...) bb##kind##name(__VA_ARGS__)
|
|
#define BB_MSG(name, kind, ...) _BB_MSG(name, kind, __VA_ARGS__)
|
|
#define bb_error_msg(...) BB_MSG(_error_msg, BB_MSG_KIND(__VA_ARGS__), __VA_ARGS__)
|
|
#define bb_error_msg_and_die(...) BB_MSG(_error_msg_and_die, BB_MSG_KIND(__VA_ARGS__), __VA_ARGS__)
|
|
#define bb_perror_msg(...) BB_MSG(_perror_msg, BB_MSG_KIND(__VA_ARGS__), __VA_ARGS__)
|
|
#define bb_perror_msg_and_die(...) BB_MSG(_perror_msg_and_die, BB_MSG_KIND(__VA_ARGS__), __VA_ARGS__)
|
|
#define bb_herror_msg(...) BB_MSG(_herror_msg, BB_MSG_KIND(__VA_ARGS__), __VA_ARGS__)
|
|
#define bb_herror_msg_and_die(...) BB_MSG(_herror_msg_and_die, BB_MSG_KIND(__VA_ARGS__), __VA_ARGS__)
|
|
#if ENABLE_FEATURE_SYSLOG_INFO
|
|
#define bb_info_msg(...) BB_MSG(_info_msg, BB_MSG_KIND(__VA_ARGS__), __VA_ARGS__)
|
|
#endif
|
|
#endif
|
|
|
|
/* We need to export XXX_main from libbusybox
|
|
* only if we build "individual" binaries
|
|
*/
|
|
#if ENABLE_FEATURE_INDIVIDUAL
|
|
#define MAIN_EXTERNALLY_VISIBLE EXTERNALLY_VISIBLE
|
|
#else
|
|
#define MAIN_EXTERNALLY_VISIBLE
|
|
#endif
|
|
|
|
/* Embedded script support */
|
|
char *get_script_content(unsigned n) FAST_FUNC;
|
|
int scripted_main(int argc, char** argv) MAIN_EXTERNALLY_VISIBLE;
|
|
|
|
/* Applets which are useful from another applets */
|
|
int bb_cat(char** argv) FAST_FUNC;
|
|
int ash_main(int argc, char** argv)
|
|
#if ENABLE_ASH || ENABLE_SH_IS_ASH || ENABLE_BASH_IS_ASH
|
|
MAIN_EXTERNALLY_VISIBLE
|
|
#endif
|
|
;
|
|
int hush_main(int argc, char** argv)
|
|
#if ENABLE_HUSH || ENABLE_SH_IS_HUSH || ENABLE_BASH_IS_HUSH
|
|
MAIN_EXTERNALLY_VISIBLE
|
|
#endif
|
|
;
|
|
/* If shell needs them, they exist even if not enabled as applets */
|
|
int echo_main(int argc, char** argv) IF_ECHO(MAIN_EXTERNALLY_VISIBLE);
|
|
int printf_main(int argc, char **argv) IF_PRINTF(MAIN_EXTERNALLY_VISIBLE);
|
|
int test_main(int argc, char **argv)
|
|
#if ENABLE_TEST || ENABLE_TEST1 || ENABLE_TEST2
|
|
MAIN_EXTERNALLY_VISIBLE
|
|
#endif
|
|
;
|
|
int kill_main(int argc, char **argv)
|
|
#if ENABLE_KILL || ENABLE_KILLALL || ENABLE_KILLALL5
|
|
MAIN_EXTERNALLY_VISIBLE
|
|
#endif
|
|
;
|
|
/* Similar, but used by chgrp, not shell */
|
|
int chown_main(int argc, char **argv) IF_CHOWN(MAIN_EXTERNALLY_VISIBLE);
|
|
/* Used by ftpd */
|
|
int ls_main(int argc, char **argv) IF_LS(MAIN_EXTERNALLY_VISIBLE);
|
|
/* Don't need IF_xxx() guard for these */
|
|
int gunzip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int bunzip2_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
|
|
#if ENABLE_ROUTE
|
|
void bb_displayroutes(int noresolve, int netstatfmt) FAST_FUNC;
|
|
#endif
|
|
|
|
struct number_state {
|
|
unsigned width;
|
|
unsigned start;
|
|
unsigned inc;
|
|
const char *sep;
|
|
const char *empty_str;
|
|
smallint all, nonempty;
|
|
};
|
|
int print_numbered_lines(struct number_state *ns, const char *filename) FAST_FUNC;
|
|
|
|
|
|
/* Networking */
|
|
/* This structure defines protocol families and their handlers. */
|
|
struct aftype {
|
|
const char *name;
|
|
const char *title;
|
|
int af;
|
|
int alen;
|
|
char* FAST_FUNC (*print)(unsigned char *);
|
|
const char* FAST_FUNC (*sprint)(struct sockaddr *, int numeric);
|
|
int FAST_FUNC (*input)(/*int type,*/ const char *bufp, struct sockaddr *);
|
|
void FAST_FUNC (*herror)(char *text);
|
|
int FAST_FUNC (*rprint)(int options);
|
|
int FAST_FUNC (*rinput)(int typ, int ext, char **argv);
|
|
/* may modify src */
|
|
int FAST_FUNC (*getmask)(char *src, struct sockaddr *mask, char *name);
|
|
};
|
|
/* This structure defines hardware protocols and their handlers. */
|
|
struct hwtype {
|
|
const char *name;
|
|
const char *title;
|
|
int type;
|
|
int alen;
|
|
char* FAST_FUNC (*print)(unsigned char *);
|
|
int FAST_FUNC (*input)(const char *, struct sockaddr *);
|
|
int FAST_FUNC (*activate)(int fd);
|
|
int suppress_null_addr;
|
|
};
|
|
#define IFNAME_SHOW_DOWNED_TOO ((char*)(intptr_t)1)
|
|
int display_interfaces(char *ifname) FAST_FUNC;
|
|
int in_ether(const char *bufp, struct sockaddr *sap) FAST_FUNC;
|
|
#if ENABLE_FEATURE_HWIB
|
|
int in_ib(const char *bufp, struct sockaddr *sap) FAST_FUNC;
|
|
#else
|
|
#define in_ib(a, b) 1 /* fail */
|
|
#endif
|
|
const struct aftype *get_aftype(const char *name) FAST_FUNC;
|
|
const struct hwtype *get_hwtype(const char *name) FAST_FUNC;
|
|
const struct hwtype *get_hwntype(int type) FAST_FUNC;
|
|
|
|
|
|
extern int fstype_matches(const char *fstype, const char *comma_list) FAST_FUNC;
|
|
#ifdef HAVE_MNTENT_H
|
|
extern struct mntent *find_mount_point(const char *name, int subdir_too) FAST_FUNC;
|
|
#endif
|
|
extern void erase_mtab(const char * name) FAST_FUNC;
|
|
extern unsigned int tty_baud_to_value(speed_t speed) FAST_FUNC;
|
|
extern speed_t tty_value_to_baud(unsigned int value) FAST_FUNC;
|
|
#if ENABLE_DESKTOP
|
|
extern void bb_warn_ignoring_args(char *arg) FAST_FUNC;
|
|
#else
|
|
# define bb_warn_ignoring_args(arg) ((void)0)
|
|
#endif
|
|
|
|
extern int get_linux_version_code(void) FAST_FUNC;
|
|
|
|
char *query_loop(const char *device) FAST_FUNC;
|
|
int get_free_loop(void) FAST_FUNC;
|
|
int del_loop(const char *device) FAST_FUNC;
|
|
/*
|
|
* If *devname is not NULL, use that name, otherwise try to find free one,
|
|
* malloc and return it in *devname.
|
|
* return value is the opened fd to the loop device, or < on error
|
|
*/
|
|
int set_loop(char **devname, const char *file, unsigned long long offset,
|
|
unsigned long long sizelimit, unsigned flags) FAST_FUNC;
|
|
/* These constants match linux/loop.h (without BB_ prefix): */
|
|
#define BB_LO_FLAGS_READ_ONLY 1
|
|
#define BB_LO_FLAGS_AUTOCLEAR 4
|
|
#define BB_LO_FLAGS_PARTSCAN 8
|
|
|
|
/* Returns malloced str */
|
|
char *bb_ask_noecho(int fd, int timeout, const char *prompt) FAST_FUNC;
|
|
/* Like bb_ask_noecho, but asks on stdin with no timeout. */
|
|
char *bb_ask_noecho_stdin(const char *prompt) FAST_FUNC;
|
|
|
|
int bb_ask_y_confirmation_FILE(FILE *fp) FAST_FUNC;
|
|
int bb_ask_y_confirmation(void) FAST_FUNC;
|
|
|
|
/* Returns -1 if input is invalid. cur_mode is a base for e.g. "u+rw" */
|
|
int bb_parse_mode(const char* s, unsigned cur_mode) FAST_FUNC;
|
|
|
|
/*
|
|
* Config file parser
|
|
*/
|
|
enum {
|
|
PARSE_COLLAPSE = 0x00010000, // treat consecutive delimiters as one
|
|
PARSE_TRIM = 0x00020000, // trim leading and trailing delimiters
|
|
// TODO: COLLAPSE and TRIM seem to always go in pair
|
|
PARSE_GREEDY = 0x00040000, // last token takes entire remainder of the line
|
|
PARSE_MIN_DIE = 0x00100000, // die if < min tokens found
|
|
// keep a copy of current line
|
|
PARSE_KEEP_COPY = 0x00200000 * ENABLE_FEATURE_CROND_D,
|
|
PARSE_EOL_COMMENTS = 0x00400000, // comments are recognized even if they aren't the first char
|
|
PARSE_ALT_COMMENTS = 0x00800000, // delim[0] and delim[1] are two different allowed comment chars
|
|
// (so far, delim[0] will only work as comment char for full-line comment)
|
|
// (IOW: it works as if PARSE_EOL_COMMENTS is not set. sysctl applet is okay with this)
|
|
PARSE_WS_COMMENTS = 0x01000000, // comments are recognized even if there is whitespace before
|
|
// ("line start><space><tab><space>#comment" is also comment, not only "line start>#comment")
|
|
// NORMAL is:
|
|
// * remove leading and trailing delimiters and collapse
|
|
// multiple delimiters into one
|
|
// * warn and continue if less than mintokens delimiters found
|
|
// * grab everything into last token
|
|
// * comments are recognized even if they aren't the first char
|
|
PARSE_NORMAL = PARSE_COLLAPSE | PARSE_TRIM | PARSE_GREEDY | PARSE_EOL_COMMENTS,
|
|
};
|
|
typedef struct parser_t {
|
|
FILE *fp;
|
|
char *data;
|
|
char *line, *nline;
|
|
size_t line_alloc, nline_alloc;
|
|
int lineno;
|
|
} parser_t;
|
|
parser_t* config_open(const char *filename) FAST_FUNC;
|
|
parser_t* config_open2(const char *filename, FILE* FAST_FUNC (*fopen_func)(const char *path)) FAST_FUNC;
|
|
/* delims[0] is a comment char (use '\0' to disable), the rest are token delimiters */
|
|
int config_read(parser_t *parser, char **tokens, unsigned flags, const char *delims) FAST_FUNC;
|
|
#define config_read(parser, tokens, max, min, str, flags) \
|
|
config_read(parser, tokens, ((flags) | (((min) & 0xFF) << 8) | ((max) & 0xFF)), str)
|
|
void config_close(parser_t *parser) FAST_FUNC;
|
|
|
|
/* Concatenate path and filename to new allocated buffer.
|
|
* Add "/" only as needed (no duplicate "//" are produced).
|
|
* If path is NULL, it is assumed to be "/".
|
|
* filename should not be NULL. */
|
|
char *concat_path_file(const char *path, const char *filename) FAST_FUNC;
|
|
/* Returns NULL on . and .. */
|
|
char *concat_subpath_file(const char *path, const char *filename) FAST_FUNC;
|
|
|
|
|
|
int bb_make_directory(char *path, long mode, int flags) FAST_FUNC;
|
|
|
|
int get_signum(const char *name) FAST_FUNC;
|
|
const char *get_signame(int number) FAST_FUNC;
|
|
void print_signames(void) FAST_FUNC;
|
|
|
|
char *bb_simplify_path(const char *path) FAST_FUNC;
|
|
/* Returns ptr to NUL */
|
|
char *bb_simplify_abs_path_inplace(char *path) FAST_FUNC;
|
|
|
|
void pause_after_failed_login(void) FAST_FUNC;
|
|
void bb_do_delay(unsigned seconds) FAST_FUNC;
|
|
void msleep(unsigned ms) FAST_FUNC;
|
|
void sleep1(void) FAST_FUNC;
|
|
void change_identity(const struct passwd *pw) FAST_FUNC;
|
|
void exec_shell(const char *shell, int loginshell, const char **args) NORETURN FAST_FUNC;
|
|
void exec_login_shell(const char *shell) NORETURN FAST_FUNC;
|
|
void exec_prog_or_SHELL(char **argv) NORETURN FAST_FUNC;
|
|
|
|
/* Returns $SHELL, getpwuid(getuid())->pw_shell, or DEFAULT_SHELL.
|
|
* Note that getpwuid result might need xstrdup'ing
|
|
* if there is a possibility of intervening getpwxxx() calls.
|
|
*/
|
|
const char *get_shell_name(void) FAST_FUNC;
|
|
|
|
#if ENABLE_FEATURE_SETPRIV_CAPABILITIES || ENABLE_RUN_INIT
|
|
unsigned cap_name_to_number(const char *cap) FAST_FUNC;
|
|
void printf_cap(const char *pfx, unsigned cap_no) FAST_FUNC;
|
|
void drop_capability(int cap_ordinal) FAST_FUNC;
|
|
/* Structures inside "struct caps" are Linux-specific and libcap-specific: */
|
|
#define DEFINE_STRUCT_CAPS \
|
|
struct caps { \
|
|
struct __user_cap_header_struct header; \
|
|
unsigned u32s; \
|
|
struct __user_cap_data_struct data[2]; \
|
|
}
|
|
void getcaps(void *caps) FAST_FUNC;
|
|
#endif
|
|
|
|
#if ENABLE_SELINUX
|
|
extern void renew_current_security_context(void) FAST_FUNC;
|
|
extern void set_current_security_context(security_context_t sid) FAST_FUNC;
|
|
extern context_t set_security_context_component(security_context_t cur_context,
|
|
char *user, char *role, char *type, char *range) FAST_FUNC;
|
|
extern void setfscreatecon_or_die(security_context_t scontext) FAST_FUNC;
|
|
extern void selinux_preserve_fcontext(int fdesc) FAST_FUNC;
|
|
#else
|
|
#define selinux_preserve_fcontext(fdesc) ((void)0)
|
|
#endif
|
|
extern void selinux_or_die(void) FAST_FUNC;
|
|
|
|
|
|
/* setup_environment:
|
|
* if chdir pw->pw_dir: ok: else if to_tmp == 1: goto /tmp else: goto / or die
|
|
* if clear_env = 1: cd(pw->pw_dir), clear environment, then set
|
|
* TERM=(old value)
|
|
* USER=pw->pw_name, LOGNAME=pw->pw_name
|
|
* PATH=bb_default_[root_]path
|
|
* HOME=pw->pw_dir
|
|
* SHELL=shell
|
|
* else if change_env = 1:
|
|
* if not root (if pw->pw_uid != 0):
|
|
* USER=pw->pw_name, LOGNAME=pw->pw_name
|
|
* HOME=pw->pw_dir
|
|
* SHELL=shell
|
|
* else does nothing
|
|
*
|
|
* NB: CHANGEENV and CLEARENV use setenv() - this leaks memory!
|
|
* If setup_environment() is used is vforked child, this leaks memory _in parent too_!
|
|
*/
|
|
#define SETUP_ENV_CHANGEENV (1 << 0)
|
|
#define SETUP_ENV_CLEARENV (1 << 1)
|
|
#define SETUP_ENV_TO_TMP (1 << 2)
|
|
#define SETUP_ENV_NO_CHDIR (1 << 4)
|
|
void setup_environment(const char *shell, int flags, const struct passwd *pw) FAST_FUNC;
|
|
void nuke_str(char *str) FAST_FUNC;
|
|
#if ENABLE_FEATURE_SECURETTY && !ENABLE_PAM
|
|
int is_tty_secure(const char *short_tty) FAST_FUNC;
|
|
#else
|
|
static ALWAYS_INLINE int is_tty_secure(const char *short_tty UNUSED_PARAM) { return 1; }
|
|
#endif
|
|
#define CHECKPASS_PW_HAS_EMPTY_PASSWORD 2
|
|
int check_password(const struct passwd *pw, const char *plaintext) FAST_FUNC;
|
|
int ask_and_check_password_extended(const struct passwd *pw, int timeout, const char *prompt) FAST_FUNC;
|
|
int ask_and_check_password(const struct passwd *pw) FAST_FUNC;
|
|
/* Returns a malloced string */
|
|
#if !ENABLE_USE_BB_CRYPT
|
|
#define pw_encrypt(clear, salt, cleanup) pw_encrypt(clear, salt)
|
|
#endif
|
|
extern char *pw_encrypt(const char *clear, const char *salt, int cleanup) FAST_FUNC;
|
|
extern int obscure(const char *old, const char *newval, const struct passwd *pwdp) FAST_FUNC;
|
|
/*
|
|
* rnd is additional random input. New one is returned.
|
|
* Useful if you call crypt_make_salt many times in a row:
|
|
* rnd = crypt_make_salt(buf1, 4, 0);
|
|
* rnd = crypt_make_salt(buf2, 4, rnd);
|
|
* rnd = crypt_make_salt(buf3, 4, rnd);
|
|
* (otherwise we risk having same salt generated)
|
|
*/
|
|
extern int crypt_make_salt(char *p, int cnt /*, int rnd*/) FAST_FUNC;
|
|
/* "$N$" + sha_salt_16_bytes + NUL */
|
|
#define MAX_PW_SALT_LEN (3 + 16 + 1)
|
|
extern char* crypt_make_pw_salt(char p[MAX_PW_SALT_LEN], const char *algo) FAST_FUNC;
|
|
|
|
|
|
/* Returns number of lines changed, or -1 on error */
|
|
#if !(ENABLE_FEATURE_ADDUSER_TO_GROUP || ENABLE_FEATURE_DEL_USER_FROM_GROUP)
|
|
#define update_passwd(filename, username, data, member) \
|
|
update_passwd(filename, username, data)
|
|
#endif
|
|
extern int update_passwd(const char *filename,
|
|
const char *username,
|
|
const char *data,
|
|
const char *member) FAST_FUNC;
|
|
|
|
int index_in_str_array(const char *const string_array[], const char *key) FAST_FUNC;
|
|
int index_in_strings(const char *strings, const char *key) FAST_FUNC;
|
|
int index_in_substr_array(const char *const string_array[], const char *key) FAST_FUNC;
|
|
int index_in_substrings(const char *strings, const char *key) FAST_FUNC;
|
|
const char *nth_string(const char *strings, int n) FAST_FUNC;
|
|
|
|
extern void print_login_issue(const char *issue_file, const char *tty) FAST_FUNC;
|
|
extern void print_login_prompt(void) FAST_FUNC;
|
|
|
|
char *xmalloc_ttyname(int fd) FAST_FUNC RETURNS_MALLOC;
|
|
int is_TERM_dumb(void) FAST_FUNC;
|
|
/* NB: typically you want to pass fd 0, not 1. Think 'applet | grep something' */
|
|
int get_terminal_width_height(int fd, unsigned *width, unsigned *height) FAST_FUNC;
|
|
int get_terminal_width(int fd) FAST_FUNC;
|
|
|
|
int tcsetattr_stdin_TCSANOW(const struct termios *tp) FAST_FUNC;
|
|
#define TERMIOS_CLEAR_ISIG (1 << 0)
|
|
#define TERMIOS_RAW_CRNL_INPUT (1 << 1)
|
|
#define TERMIOS_RAW_CRNL_OUTPUT (1 << 2)
|
|
#define TERMIOS_RAW_CRNL (TERMIOS_RAW_CRNL_INPUT|TERMIOS_RAW_CRNL_OUTPUT)
|
|
#define TERMIOS_RAW_INPUT (1 << 3)
|
|
int get_termios_and_make_raw(int fd, struct termios *newterm, struct termios *oldterm, int flags) FAST_FUNC;
|
|
int set_termios_to_raw(int fd, struct termios *oldterm, int flags) FAST_FUNC;
|
|
|
|
/* NB: "unsigned request" is crucial! "int request" will break some arches! */
|
|
int ioctl_or_perror(int fd, unsigned request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5))) FAST_FUNC;
|
|
int ioctl_or_perror_and_die(int fd, unsigned request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5))) FAST_FUNC;
|
|
#if ENABLE_IOCTL_HEX2STR_ERROR
|
|
int bb_ioctl_or_warn(int fd, unsigned request, void *argp, const char *ioctl_name) FAST_FUNC;
|
|
int bb_xioctl(int fd, unsigned request, void *argp, const char *ioctl_name) FAST_FUNC;
|
|
#define ioctl_or_warn(fd,request,argp) bb_ioctl_or_warn(fd,request,argp,#request)
|
|
#define xioctl(fd,request,argp) bb_xioctl(fd,request,argp,#request)
|
|
#else
|
|
int bb_ioctl_or_warn(int fd, unsigned request, void *argp) FAST_FUNC;
|
|
int bb_xioctl(int fd, unsigned request, void *argp) FAST_FUNC;
|
|
#define ioctl_or_warn(fd,request,argp) bb_ioctl_or_warn(fd,request,argp)
|
|
#define xioctl(fd,request,argp) bb_xioctl(fd,request,argp)
|
|
#endif
|
|
|
|
char *is_in_ino_dev_hashtable(const struct stat *statbuf) FAST_FUNC;
|
|
void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name) FAST_FUNC;
|
|
void reset_ino_dev_hashtable(void) FAST_FUNC;
|
|
#ifdef __GLIBC__
|
|
/* At least glibc has horrendously large inline for this, so wrap it */
|
|
unsigned long long bb_makedev(unsigned major, unsigned minor) FAST_FUNC;
|
|
#undef makedev
|
|
#define makedev(a,b) bb_makedev(a,b)
|
|
#endif
|
|
|
|
|
|
/* "Keycodes" that report an escape sequence.
|
|
* We use something which fits into signed char,
|
|
* yet doesn't represent any valid Unicode character.
|
|
* Also, -1 is reserved for error indication and we don't use it. */
|
|
enum {
|
|
KEYCODE_UP = -2,
|
|
KEYCODE_DOWN = -3,
|
|
KEYCODE_RIGHT = -4,
|
|
KEYCODE_LEFT = -5,
|
|
KEYCODE_HOME = -6,
|
|
KEYCODE_END = -7,
|
|
KEYCODE_INSERT = -8,
|
|
KEYCODE_DELETE = -9,
|
|
KEYCODE_PAGEUP = -10,
|
|
KEYCODE_PAGEDOWN = -11,
|
|
KEYCODE_BACKSPACE = -12, /* Used only if Alt/Ctrl/Shifted */
|
|
KEYCODE_D = -13, /* Used only if Alted */
|
|
#if 0
|
|
KEYCODE_FUN1 = ,
|
|
KEYCODE_FUN2 = ,
|
|
KEYCODE_FUN3 = ,
|
|
KEYCODE_FUN4 = ,
|
|
KEYCODE_FUN5 = ,
|
|
KEYCODE_FUN6 = ,
|
|
KEYCODE_FUN7 = ,
|
|
KEYCODE_FUN8 = ,
|
|
KEYCODE_FUN9 = ,
|
|
KEYCODE_FUN10 = ,
|
|
KEYCODE_FUN11 = ,
|
|
KEYCODE_FUN12 = ,
|
|
#endif
|
|
/* ^^^^^ Be sure that last defined value is small enough.
|
|
* Current read_key() code allows going up to -32 (0xfff..fffe0).
|
|
* This gives three upper bits in LSB to play with:
|
|
* KEYCODE_foo values are 0xfff..fffXX, lowest XX bits are: scavvvvv,
|
|
* s=0 if SHIFT, c=0 if CTRL, a=0 if ALT,
|
|
* vvvvv bits are the same for same key regardless of "shift bits".
|
|
*/
|
|
//KEYCODE_SHIFT_... = KEYCODE_... & ~0x80,
|
|
KEYCODE_CTRL_RIGHT = KEYCODE_RIGHT & ~0x40,
|
|
KEYCODE_CTRL_LEFT = KEYCODE_LEFT & ~0x40,
|
|
KEYCODE_ALT_RIGHT = KEYCODE_RIGHT & ~0x20,
|
|
KEYCODE_ALT_LEFT = KEYCODE_LEFT & ~0x20,
|
|
KEYCODE_ALT_BACKSPACE = KEYCODE_BACKSPACE & ~0x20,
|
|
KEYCODE_ALT_D = KEYCODE_D & ~0x20,
|
|
|
|
KEYCODE_CURSOR_POS = -0x100, /* 0xfff..fff00 */
|
|
/* How long is the longest ESC sequence we know?
|
|
* We want it big enough to be able to contain
|
|
* cursor position sequence "ESC [ 9999 ; 9999 R"
|
|
*/
|
|
KEYCODE_BUFFER_SIZE = 16
|
|
};
|
|
/* Note: fd may be in blocking or non-blocking mode, both make sense.
|
|
* For one, less uses non-blocking mode.
|
|
* Only the first read syscall inside read_key may block indefinitely
|
|
* (unless fd is in non-blocking mode),
|
|
* subsequent reads will time out after a few milliseconds.
|
|
* Return of -1 means EOF or error (errno == 0 on EOF).
|
|
* buffer[0] is used as a counter of buffered chars and must be 0
|
|
* on first call.
|
|
* timeout:
|
|
* -2: do not poll(-1) for input - read() it, return on EAGAIN at once
|
|
* -1: poll(-1) (i.e. block even on NONBLOCKed fd)
|
|
* >=0: poll() for TIMEOUT milliseconds, return -1/EAGAIN on timeout
|
|
*/
|
|
int64_t read_key(int fd, char *buffer, int timeout) FAST_FUNC;
|
|
void read_key_ungets(char *buffer, const char *str, unsigned len) FAST_FUNC;
|
|
|
|
|
|
#if ENABLE_FEATURE_EDITING
|
|
/* It's NOT just ENABLEd or disabled. It's a number: */
|
|
# if defined CONFIG_FEATURE_EDITING_HISTORY && CONFIG_FEATURE_EDITING_HISTORY > 0
|
|
# define MAX_HISTORY (CONFIG_FEATURE_EDITING_HISTORY + 0)
|
|
unsigned size_from_HISTFILESIZE(const char *hp) FAST_FUNC;
|
|
# else
|
|
# define MAX_HISTORY 0
|
|
# endif
|
|
typedef const char *get_exe_name_t(int i) FAST_FUNC;
|
|
typedef struct line_input_t {
|
|
int flags;
|
|
int timeout;
|
|
# if ENABLE_FEATURE_TAB_COMPLETION
|
|
# if ENABLE_SHELL_ASH
|
|
const char *path_lookup;
|
|
# define EDITING_HAS_path_lookup 1
|
|
# else
|
|
# define EDITING_HAS_path_lookup 0
|
|
# endif
|
|
# if ENABLE_SHELL_ASH || ENABLE_SHELL_HUSH
|
|
/* function to fetch additional application-specific names to match */
|
|
get_exe_name_t *get_exe_name;
|
|
# define EDITING_HAS_get_exe_name 1
|
|
# else
|
|
# define EDITING_HAS_get_exe_name 0
|
|
# endif
|
|
# endif
|
|
# if MAX_HISTORY
|
|
int cnt_history;
|
|
int cur_history;
|
|
int max_history; /* must never be <= 0 */
|
|
# if ENABLE_FEATURE_EDITING_SAVEHISTORY
|
|
/* meaning of this field depends on FEATURE_EDITING_SAVE_ON_EXIT:
|
|
* if !FEATURE_EDITING_SAVE_ON_EXIT: "how many lines are
|
|
* in on-disk history"
|
|
* if FEATURE_EDITING_SAVE_ON_EXIT: "how many in-memory lines are
|
|
* also in on-disk history (and thus need to be skipped on save)"
|
|
*/
|
|
unsigned cnt_history_in_file;
|
|
const char *hist_file;
|
|
# endif
|
|
char *history[MAX_HISTORY + 1];
|
|
# endif
|
|
} line_input_t;
|
|
enum {
|
|
DO_HISTORY = 1 * (MAX_HISTORY > 0),
|
|
TAB_COMPLETION = 2 * ENABLE_FEATURE_TAB_COMPLETION,
|
|
USERNAME_COMPLETION = 4 * ENABLE_FEATURE_USERNAME_COMPLETION,
|
|
VI_MODE = 8 * ENABLE_FEATURE_EDITING_VI,
|
|
WITH_PATH_LOOKUP = 0x10,
|
|
FOR_SHELL = DO_HISTORY | TAB_COMPLETION | USERNAME_COMPLETION,
|
|
};
|
|
line_input_t *new_line_input_t(int flags) FAST_FUNC;
|
|
#if ENABLE_FEATURE_EDITING_SAVEHISTORY
|
|
void free_line_input_t(line_input_t *n) FAST_FUNC;
|
|
#else
|
|
# define free_line_input_t(n) free(n)
|
|
#endif
|
|
/*
|
|
* maxsize must be >= 2.
|
|
* Returns:
|
|
* -1 on read errors or EOF, or on bare Ctrl-D,
|
|
* 0 on ctrl-C (the line entered is still returned in 'command'),
|
|
* >0 length of input string, including terminating '\n'
|
|
*/
|
|
int read_line_input(line_input_t *st, const char *prompt, char *command, int maxsize) FAST_FUNC;
|
|
void show_history(const line_input_t *st) FAST_FUNC;
|
|
# if ENABLE_FEATURE_EDITING_SAVE_ON_EXIT
|
|
void save_history(line_input_t *st);
|
|
# endif
|
|
#else
|
|
#define MAX_HISTORY 0
|
|
int read_line_input(const char* prompt, char* command, int maxsize) FAST_FUNC;
|
|
#define read_line_input(state, prompt, command, maxsize) \
|
|
read_line_input(prompt, command, maxsize)
|
|
#endif
|
|
|
|
#ifndef EDITING_HAS_get_exe_name
|
|
# define EDITING_HAS_get_exe_name 0
|
|
#endif
|
|
|
|
|
|
#ifndef COMM_LEN
|
|
# ifdef TASK_COMM_LEN
|
|
enum { COMM_LEN = TASK_COMM_LEN };
|
|
# else
|
|
/* synchronize with sizeof(task_struct.comm) in /usr/include/linux/sched.h */
|
|
enum { COMM_LEN = 16 };
|
|
# endif
|
|
#endif
|
|
|
|
struct smaprec {
|
|
unsigned long mapped_rw;
|
|
unsigned long mapped_ro;
|
|
unsigned long shared_clean;
|
|
unsigned long shared_dirty;
|
|
unsigned long private_clean;
|
|
unsigned long private_dirty;
|
|
unsigned long stack;
|
|
unsigned long smap_pss, smap_swap;
|
|
unsigned long smap_size;
|
|
// For mixed 32/64 userspace, 32-bit pmap still needs
|
|
// 64-bit field here to correctly show 64-bit processes:
|
|
unsigned long long smap_start;
|
|
// (strictly speaking, other fields need to be wider too,
|
|
// but they are in kbytes, not bytes, and they hold sizes,
|
|
// not start addresses, sizes tend to be less than 4 terabytes)
|
|
char smap_mode[5];
|
|
char *smap_name;
|
|
};
|
|
|
|
#if !ENABLE_PMAP
|
|
#define procps_read_smaps(pid, total, cb, data) \
|
|
procps_read_smaps(pid, total)
|
|
#endif
|
|
int FAST_FUNC procps_read_smaps(pid_t pid, struct smaprec *total,
|
|
void (*cb)(struct smaprec *, void *), void *data);
|
|
|
|
typedef struct procps_status_t {
|
|
DIR *dir;
|
|
IF_FEATURE_SHOW_THREADS(DIR *task_dir;)
|
|
uint8_t shift_pages_to_bytes;
|
|
uint8_t shift_pages_to_kb;
|
|
/* Fields are set to 0/NULL if failed to determine (or not requested) */
|
|
uint16_t argv_len;
|
|
char *argv0;
|
|
char *exe;
|
|
IF_SELINUX(char *context;)
|
|
IF_FEATURE_SHOW_THREADS(unsigned main_thread_pid;)
|
|
/* Everything below must contain no ptrs to malloc'ed data:
|
|
* it is memset(0) for each process in procps_scan() */
|
|
unsigned long vsz, rss; /* we round it to kbytes */
|
|
unsigned long stime, utime;
|
|
unsigned long start_time;
|
|
unsigned pid;
|
|
unsigned ppid;
|
|
unsigned pgid;
|
|
unsigned sid;
|
|
unsigned uid;
|
|
unsigned gid;
|
|
#if ENABLE_FEATURE_PS_ADDITIONAL_COLUMNS
|
|
unsigned ruid;
|
|
unsigned rgid;
|
|
int niceness;
|
|
#endif
|
|
unsigned tty_major,tty_minor;
|
|
#if ENABLE_FEATURE_TOPMEM
|
|
struct smaprec smaps;
|
|
#endif
|
|
char state[4];
|
|
/* basename of executable in exec(2), read from /proc/N/stat
|
|
* (if executable is symlink or script, it is NOT replaced
|
|
* by link target or interpreter name) */
|
|
char comm[COMM_LEN];
|
|
/* user/group? - use passwd/group parsing functions */
|
|
#if ENABLE_FEATURE_TOP_SMP_PROCESS
|
|
int last_seen_on_cpu;
|
|
#endif
|
|
} procps_status_t;
|
|
/* flag bits for procps_scan(xx, flags) calls */
|
|
enum {
|
|
PSSCAN_PID = 1 << 0,
|
|
PSSCAN_PPID = 1 << 1,
|
|
PSSCAN_PGID = 1 << 2,
|
|
PSSCAN_SID = 1 << 3,
|
|
PSSCAN_UIDGID = 1 << 4,
|
|
PSSCAN_COMM = 1 << 5,
|
|
/* PSSCAN_CMD = 1 << 6, - use read_cmdline instead */
|
|
PSSCAN_ARGV0 = 1 << 7,
|
|
PSSCAN_EXE = 1 << 8,
|
|
PSSCAN_STATE = 1 << 9,
|
|
PSSCAN_VSZ = 1 << 10,
|
|
PSSCAN_RSS = 1 << 11,
|
|
PSSCAN_STIME = 1 << 12,
|
|
PSSCAN_UTIME = 1 << 13,
|
|
PSSCAN_TTY = 1 << 14,
|
|
PSSCAN_SMAPS = (1 << 15) * ENABLE_FEATURE_TOPMEM,
|
|
/* NB: used by find_pid_by_name(). Any applet using it
|
|
* needs to be mentioned here. */
|
|
PSSCAN_ARGVN = (1 << 16) * (ENABLE_KILLALL
|
|
|| ENABLE_PGREP || ENABLE_PKILL
|
|
|| ENABLE_PIDOF
|
|
|| ENABLE_SESTATUS
|
|
),
|
|
PSSCAN_CONTEXT = (1 << 17) * ENABLE_SELINUX,
|
|
PSSCAN_START_TIME = 1 << 18,
|
|
PSSCAN_CPU = (1 << 19) * ENABLE_FEATURE_TOP_SMP_PROCESS,
|
|
PSSCAN_NICE = (1 << 20) * ENABLE_FEATURE_PS_ADDITIONAL_COLUMNS,
|
|
PSSCAN_RUIDGID = (1 << 21) * ENABLE_FEATURE_PS_ADDITIONAL_COLUMNS,
|
|
PSSCAN_TASKS = (1 << 22) * ENABLE_FEATURE_SHOW_THREADS,
|
|
};
|
|
//procps_status_t* alloc_procps_scan(void) FAST_FUNC;
|
|
void free_procps_scan(procps_status_t* sp) FAST_FUNC;
|
|
procps_status_t* procps_scan(procps_status_t* sp, int flags) FAST_FUNC;
|
|
/* Format cmdline (up to col chars) into char buf[size] */
|
|
/* Puts [comm] if cmdline is empty (-> process is a kernel thread) */
|
|
void read_cmdline(char *buf, int size, unsigned pid, const char *comm) FAST_FUNC;
|
|
pid_t *find_pid_by_name(const char* procName) FAST_FUNC;
|
|
pid_t *pidlist_reverse(pid_t *pidList) FAST_FUNC;
|
|
int starts_with_cpu(const char *str) FAST_FUNC;
|
|
unsigned get_cpu_count(void) FAST_FUNC;
|
|
|
|
|
|
/* Use strict=1 if you process input from untrusted source:
|
|
* it will return NULL on invalid %xx (bad hex chars)
|
|
* and str + 1 if decoded char is / or NUL.
|
|
* In non-strict mode, it always succeeds (returns str),
|
|
* and also it additionally decoded '+' to space.
|
|
*/
|
|
char *percent_decode_in_place(char *str, int strict) FAST_FUNC;
|
|
|
|
|
|
extern const char bb_uuenc_tbl_base64[] ALIGN1;
|
|
extern const char bb_uuenc_tbl_base32[] ALIGN1;
|
|
extern const char bb_uuenc_tbl_std[] ALIGN1;
|
|
void bb_uuencode(char *store, const void *s, int length, const char *tbl) FAST_FUNC;
|
|
enum {
|
|
BASE64_FLAG_UU_STOP = 0x100,
|
|
BASE64_32 = 0x200, /* base32 */
|
|
/* Sign-extends to a value which never matches fgetc result: */
|
|
BASE64_FLAG_NO_STOP_CHAR = 0x80,
|
|
};
|
|
char *decode_base64(char *dst, const char **pp_src) FAST_FUNC;
|
|
char *decode_base32(char *dst, const char **pp_src) FAST_FUNC;
|
|
void read_base64(FILE *src_stream, FILE *dst_stream, int flags) FAST_FUNC;
|
|
|
|
typedef struct md5_ctx_t {
|
|
uint8_t wbuffer[64]; /* always correctly aligned for uint64_t */
|
|
void (*process_block)(struct md5_ctx_t*) FAST_FUNC;
|
|
uint64_t total64; /* must be directly before hash[] */
|
|
uint32_t hash[8]; /* 4 elements for md5, 5 for sha1, 8 for sha256 */
|
|
} md5_ctx_t;
|
|
typedef struct md5_ctx_t sha1_ctx_t;
|
|
typedef struct md5_ctx_t sha256_ctx_t;
|
|
typedef struct sha512_ctx_t {
|
|
uint64_t total64[2]; /* must be directly before hash[] */
|
|
uint64_t hash[8];
|
|
uint8_t wbuffer[128]; /* always correctly aligned for uint64_t */
|
|
} sha512_ctx_t;
|
|
typedef struct sha3_ctx_t {
|
|
uint64_t state[25];
|
|
unsigned bytes_queued;
|
|
unsigned input_block_bytes;
|
|
} sha3_ctx_t;
|
|
void md5_begin(md5_ctx_t *ctx) FAST_FUNC;
|
|
void md5_hash(md5_ctx_t *ctx, const void *buffer, size_t len) FAST_FUNC;
|
|
unsigned md5_end(md5_ctx_t *ctx, void *resbuf) FAST_FUNC;
|
|
void sha1_begin(sha1_ctx_t *ctx) FAST_FUNC;
|
|
#define sha1_hash md5_hash
|
|
unsigned sha1_end(sha1_ctx_t *ctx, void *resbuf) FAST_FUNC;
|
|
void sha256_begin(sha256_ctx_t *ctx) FAST_FUNC;
|
|
#define sha256_hash md5_hash
|
|
#define sha256_end sha1_end
|
|
void sha512_begin(sha512_ctx_t *ctx) FAST_FUNC;
|
|
void sha512_hash(sha512_ctx_t *ctx, const void *buffer, size_t len) FAST_FUNC;
|
|
unsigned sha512_end(sha512_ctx_t *ctx, void *resbuf) FAST_FUNC;
|
|
void sha3_begin(sha3_ctx_t *ctx) FAST_FUNC;
|
|
void sha3_hash(sha3_ctx_t *ctx, const void *buffer, size_t len) FAST_FUNC;
|
|
unsigned sha3_end(sha3_ctx_t *ctx, void *resbuf) FAST_FUNC;
|
|
/* TLS benefits from knowing that sha1 and sha256 share these. Give them "agnostic" names too */
|
|
typedef struct md5_ctx_t md5sha_ctx_t;
|
|
#define md5sha_hash md5_hash
|
|
#define sha_end sha1_end
|
|
enum {
|
|
MD5_OUTSIZE = 16,
|
|
SHA1_OUTSIZE = 20,
|
|
SHA256_OUTSIZE = 32,
|
|
SHA512_OUTSIZE = 64,
|
|
SHA3_OUTSIZE = 28,
|
|
};
|
|
|
|
extern uint32_t *global_crc32_table;
|
|
uint32_t *crc32_filltable(uint32_t *tbl256, int endian) FAST_FUNC;
|
|
uint32_t *crc32_new_table_le(void) FAST_FUNC;
|
|
uint32_t *global_crc32_new_table_le(void) FAST_FUNC;
|
|
uint32_t crc32_block_endian1(uint32_t val, const void *buf, unsigned len, uint32_t *crc_table) FAST_FUNC;
|
|
uint32_t crc32_block_endian0(uint32_t val, const void *buf, unsigned len, uint32_t *crc_table) FAST_FUNC;
|
|
|
|
typedef struct masks_labels_t {
|
|
const char *labels;
|
|
const int masks[];
|
|
} masks_labels_t;
|
|
int print_flags_separated(const int *masks, const char *labels,
|
|
int flags, const char *separator) FAST_FUNC;
|
|
int print_flags(const masks_labels_t *ml, int flags) FAST_FUNC;
|
|
|
|
typedef struct bb_progress_t {
|
|
unsigned last_size;
|
|
unsigned last_update_sec;
|
|
unsigned last_change_sec;
|
|
unsigned start_sec;
|
|
/*unsigned last_eta;*/
|
|
const char *curfile;
|
|
} bb_progress_t;
|
|
|
|
#define is_bb_progress_inited(p) ((p)->curfile != NULL)
|
|
#define bb_progress_free(p) do { \
|
|
if (ENABLE_UNICODE_SUPPORT) free((char*)((p)->curfile)); \
|
|
(p)->curfile = NULL; \
|
|
} while (0)
|
|
void bb_progress_init(bb_progress_t *p, const char *curfile) FAST_FUNC;
|
|
int bb_progress_update(bb_progress_t *p,
|
|
uoff_t beg_range,
|
|
uoff_t transferred,
|
|
uoff_t totalsize) FAST_FUNC;
|
|
|
|
unsigned ubi_devnum_from_devname(const char *str) FAST_FUNC;
|
|
int ubi_get_volid_by_name(unsigned ubi_devnum, const char *vol_name) FAST_FUNC;
|
|
|
|
|
|
extern const char *applet_name;
|
|
|
|
/* Some older linkers don't perform string merging, we used to have common strings
|
|
* as global arrays to do it by hand. But:
|
|
* (1) newer linkers do it themselves,
|
|
* (2) however, they DONT merge string constants with global arrays,
|
|
* even if the value is the same (!). Thus global arrays actually
|
|
* increased size a bit: for example, "/etc/passwd" string from libc
|
|
* wasn't merged with bb_path_passwd_file[] array!
|
|
* Therefore now we use #defines.
|
|
*/
|
|
/* "BusyBox vN.N.N (timestamp or extra_version)" */
|
|
extern const char bb_banner[] ALIGN1;
|
|
extern const char bb_msg_memory_exhausted[] ALIGN1;
|
|
extern const char bb_msg_invalid_date[] ALIGN1;
|
|
#define bb_msg_read_error "read error"
|
|
#define bb_msg_write_error "write error"
|
|
extern const char bb_msg_unknown[] ALIGN1;
|
|
extern const char bb_msg_can_not_create_raw_socket[] ALIGN1;
|
|
extern const char bb_msg_perm_denied_are_you_root[] ALIGN1;
|
|
extern const char bb_msg_you_must_be_root[] ALIGN1;
|
|
extern const char bb_msg_requires_arg[] ALIGN1;
|
|
extern const char bb_msg_invalid_arg_to[] ALIGN1;
|
|
extern const char bb_msg_standard_input[] ALIGN1;
|
|
extern const char bb_msg_standard_output[] ALIGN1;
|
|
|
|
/* NB: (bb_hexdigits_upcase[i] | 0x20) -> lowercase hex digit */
|
|
extern const char bb_hexdigits_upcase[] ALIGN1;
|
|
|
|
extern const char bb_path_wtmp_file[] ALIGN1;
|
|
|
|
/* Busybox mount uses either /proc/mounts or /etc/mtab to
|
|
* get the list of currently mounted filesystems */
|
|
#define bb_path_mtab_file IF_FEATURE_MTAB_SUPPORT("/etc/mtab")IF_NOT_FEATURE_MTAB_SUPPORT("/proc/mounts")
|
|
|
|
#define bb_path_passwd_file _PATH_PASSWD
|
|
#define bb_path_group_file _PATH_GROUP
|
|
#define bb_path_shadow_file _PATH_SHADOW
|
|
#define bb_path_gshadow_file _PATH_GSHADOW
|
|
|
|
#define bb_path_motd_file "/etc/motd"
|
|
|
|
#define bb_dev_null "/dev/null"
|
|
extern const char bb_busybox_exec_path[] ALIGN1;
|
|
/* allow default system PATH to be extended via CFLAGS */
|
|
#ifndef BB_ADDITIONAL_PATH
|
|
#define BB_ADDITIONAL_PATH ""
|
|
#endif
|
|
#define BB_PATH_ROOT_PATH "PATH=/sbin:/usr/sbin:/bin:/usr/bin" BB_ADDITIONAL_PATH
|
|
extern const char bb_PATH_root_path[] ALIGN1; /* BB_PATH_ROOT_PATH */
|
|
#define bb_default_root_path (bb_PATH_root_path + sizeof("PATH"))
|
|
/* util-linux manpage says /sbin:/bin:/usr/sbin:/usr/bin,
|
|
* but I want to save a few bytes here:
|
|
*/
|
|
#define bb_default_path (bb_PATH_root_path + sizeof("PATH=/sbin:/usr/sbin"))
|
|
|
|
extern const int const_int_0;
|
|
//extern const int const_int_1;
|
|
|
|
/* This struct is deliberately not defined. */
|
|
/* See docs/keep_data_small.txt */
|
|
struct globals;
|
|
/* '*const' ptr makes gcc optimize code much better.
|
|
* Magic prevents ptr_to_globals from going into rodata.
|
|
* If you want to assign a value, use SET_PTR_TO_GLOBALS(x) */
|
|
extern struct globals *const ptr_to_globals;
|
|
|
|
#define barrier() asm volatile ("":::"memory")
|
|
|
|
#if defined(__clang_major__) && __clang_major__ >= 9
|
|
/* Clang/llvm drops assignment to "constant" storage. Silently.
|
|
* Needs serious convincing to not eliminate the store.
|
|
*/
|
|
static ALWAYS_INLINE void* not_const_pp(const void *p)
|
|
{
|
|
void *pp;
|
|
asm volatile (
|
|
"# forget that p points to const"
|
|
: /*outputs*/ "=r" (pp)
|
|
: /*inputs*/ "0" (p)
|
|
);
|
|
return pp;
|
|
}
|
|
#else
|
|
static ALWAYS_INLINE void* not_const_pp(const void *p) { return (void*)p; }
|
|
#endif
|
|
|
|
#define ASSIGN_CONST_PTR(p, v) do { \
|
|
*(void**)not_const_pp(&p) = (void*)(v); \
|
|
/* At least gcc 3.4.6 on mipsel needs optimization barrier */ \
|
|
barrier(); \
|
|
} while (0)
|
|
|
|
#define SET_PTR_TO_GLOBALS(x) ASSIGN_CONST_PTR(ptr_to_globals, x)
|
|
#define FREE_PTR_TO_GLOBALS() do { \
|
|
if (ENABLE_FEATURE_CLEAN_UP) { \
|
|
free(ptr_to_globals); \
|
|
} \
|
|
} while (0)
|
|
|
|
/* You can change LIBBB_DEFAULT_LOGIN_SHELL, but don't use it,
|
|
* use bb_default_login_shell and following defines.
|
|
* If you change LIBBB_DEFAULT_LOGIN_SHELL,
|
|
* don't forget to change increment constant. */
|
|
#define LIBBB_DEFAULT_LOGIN_SHELL "-/bin/sh"
|
|
extern const char bb_default_login_shell[] ALIGN1;
|
|
/* "/bin/sh" */
|
|
#define DEFAULT_SHELL (bb_default_login_shell+1)
|
|
/* "sh" */
|
|
#define DEFAULT_SHELL_SHORT_NAME (bb_default_login_shell+6)
|
|
|
|
/* The following devices are the same on all systems. */
|
|
#define CURRENT_TTY "/dev/tty"
|
|
#define DEV_CONSOLE "/dev/console"
|
|
|
|
#if defined(__FreeBSD_kernel__)
|
|
# define CURRENT_VC CURRENT_TTY
|
|
# define VC_1 "/dev/ttyv0"
|
|
# define VC_2 "/dev/ttyv1"
|
|
# define VC_3 "/dev/ttyv2"
|
|
# define VC_4 "/dev/ttyv3"
|
|
# define VC_5 "/dev/ttyv4"
|
|
# define VC_FORMAT "/dev/ttyv%d"
|
|
#elif defined(__GNU__)
|
|
# define CURRENT_VC CURRENT_TTY
|
|
# define VC_1 "/dev/tty1"
|
|
# define VC_2 "/dev/tty2"
|
|
# define VC_3 "/dev/tty3"
|
|
# define VC_4 "/dev/tty4"
|
|
# define VC_5 "/dev/tty5"
|
|
# define VC_FORMAT "/dev/tty%d"
|
|
#elif ENABLE_FEATURE_DEVFS
|
|
/*Linux, obsolete devfs names */
|
|
# define CURRENT_VC "/dev/vc/0"
|
|
# define VC_1 "/dev/vc/1"
|
|
# define VC_2 "/dev/vc/2"
|
|
# define VC_3 "/dev/vc/3"
|
|
# define VC_4 "/dev/vc/4"
|
|
# define VC_5 "/dev/vc/5"
|
|
# define VC_FORMAT "/dev/vc/%d"
|
|
# define LOOP_FORMAT "/dev/loop/%u"
|
|
# define LOOP_NAMESIZE (sizeof("/dev/loop/") + sizeof(int)*3 + 1)
|
|
# define LOOP_NAME "/dev/loop/"
|
|
# define FB_0 "/dev/fb/0"
|
|
#else
|
|
/*Linux, normal names */
|
|
# define CURRENT_VC "/dev/tty0"
|
|
# define VC_1 "/dev/tty1"
|
|
# define VC_2 "/dev/tty2"
|
|
# define VC_3 "/dev/tty3"
|
|
# define VC_4 "/dev/tty4"
|
|
# define VC_5 "/dev/tty5"
|
|
# define VC_FORMAT "/dev/tty%d"
|
|
# define LOOP_FORMAT "/dev/loop%u"
|
|
# define LOOP_NAMESIZE (sizeof("/dev/loop") + sizeof(int)*3 + 1)
|
|
# define LOOP_NAME "/dev/loop"
|
|
# define FB_0 "/dev/fb0"
|
|
#endif
|
|
|
|
// storage helpers for mk*fs utilities
|
|
char BUG_wrong_field_size(void);
|
|
#define STORE_LE(field, value) \
|
|
do { \
|
|
if (sizeof(field) == 4) \
|
|
field = SWAP_LE32((uint32_t)(value)); \
|
|
else if (sizeof(field) == 2) \
|
|
field = SWAP_LE16((uint16_t)(value)); \
|
|
else if (sizeof(field) == 1) \
|
|
field = (uint8_t)(value); \
|
|
else \
|
|
BUG_wrong_field_size(); \
|
|
} while (0)
|
|
|
|
#define FETCH_LE32(field) \
|
|
(sizeof(field) == 4 ? SWAP_LE32(field) : BUG_wrong_field_size())
|
|
|
|
|
|
#define ARRAY_SIZE(x) ((unsigned)(sizeof(x) / sizeof((x)[0])))
|
|
#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
|
|
|
|
|
|
/* We redefine ctype macros. Unicode-correct handling of char types
|
|
* can't be done with such byte-oriented operations anyway,
|
|
* we don't lose anything.
|
|
*/
|
|
#undef isalnum
|
|
#undef isalpha
|
|
#undef isascii
|
|
#undef isblank
|
|
#undef iscntrl
|
|
#undef isdigit
|
|
#undef isgraph
|
|
#undef islower
|
|
#undef isprint
|
|
#undef ispunct
|
|
#undef isspace
|
|
#undef isupper
|
|
#undef isxdigit
|
|
#undef toupper
|
|
#undef tolower
|
|
|
|
/* We save ~500 bytes on isdigit alone.
|
|
* BTW, x86 likes (unsigned char) cast more than (unsigned). */
|
|
|
|
/* These work the same for ASCII and Unicode,
|
|
* assuming no one asks "is this a *Unicode* letter?" using isalpha(letter) */
|
|
#define isascii(a) ((unsigned char)(a) <= 0x7f)
|
|
#define isdigit(a) ((unsigned char)((a) - '0') <= 9)
|
|
#define isupper(a) ((unsigned char)((a) - 'A') <= ('Z' - 'A'))
|
|
#define islower(a) ((unsigned char)((a) - 'a') <= ('z' - 'a'))
|
|
#define isalpha(a) ((unsigned char)(((a)|0x20) - 'a') <= ('z' - 'a'))
|
|
#define isblank(a) ({ unsigned char bb__isblank = (a); bb__isblank == ' ' || bb__isblank == '\t'; })
|
|
#define iscntrl(a) ({ unsigned char bb__iscntrl = (a); bb__iscntrl < ' ' || bb__iscntrl == 0x7f; })
|
|
/* In POSIX/C locale isspace is only these chars: "\t\n\v\f\r" and space.
|
|
* "\t\n\v\f\r" happen to have ASCII codes 9,10,11,12,13.
|
|
*/
|
|
#define isspace(a) ({ unsigned char bb__isspace = (a) - 9; bb__isspace == (' ' - 9) || bb__isspace <= (13 - 9); })
|
|
// Unsafe wrt NUL: #define ispunct(a) (strchr("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", (a)) != NULL)
|
|
#define ispunct(a) (strchrnul("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", (a))[0])
|
|
// Bigger code: #define isalnum(a) ({ unsigned char bb__isalnum = (a) - '0'; bb__isalnum <= 9 || ((bb__isalnum - ('A' - '0')) & 0xdf) <= 25; })
|
|
#define isalnum(a) bb_ascii_isalnum(a)
|
|
static ALWAYS_INLINE int bb_ascii_isalnum(unsigned char a)
|
|
{
|
|
unsigned char b = a - '0';
|
|
if (b <= 9)
|
|
return (b <= 9);
|
|
b = (a|0x20) - 'a';
|
|
return b <= 'z' - 'a';
|
|
}
|
|
#define isxdigit(a) bb_ascii_isxdigit(a)
|
|
static ALWAYS_INLINE int bb_ascii_isxdigit(unsigned char a)
|
|
{
|
|
unsigned char b = a - '0';
|
|
if (b <= 9)
|
|
return (b <= 9);
|
|
b = (a|0x20) - 'a';
|
|
return b <= 'f' - 'a';
|
|
}
|
|
#define toupper(a) bb_ascii_toupper(a)
|
|
static ALWAYS_INLINE unsigned char bb_ascii_toupper(unsigned char a)
|
|
{
|
|
unsigned char b = a - 'a';
|
|
if (b <= ('z' - 'a'))
|
|
a -= 'a' - 'A';
|
|
return a;
|
|
}
|
|
#define tolower(a) bb_ascii_tolower(a)
|
|
static ALWAYS_INLINE unsigned char bb_ascii_tolower(unsigned char a)
|
|
{
|
|
unsigned char b = a - 'A';
|
|
if (b <= ('Z' - 'A'))
|
|
a += 'a' - 'A';
|
|
return a;
|
|
}
|
|
|
|
/* In ASCII and Unicode, these are likely to be very different.
|
|
* Let's prevent ambiguous usage from the start */
|
|
#define isgraph(a) isgraph_is_ambiguous_dont_use(a)
|
|
#define isprint(a) isprint_is_ambiguous_dont_use(a)
|
|
/* NB: must not treat EOF as isgraph or isprint */
|
|
#define isgraph_asciionly(a) ((unsigned)((a) - 0x21) <= 0x7e - 0x21)
|
|
#define isprint_asciionly(a) ((unsigned)((a) - 0x20) <= 0x7e - 0x20)
|
|
|
|
|
|
/* Simple unit-testing framework */
|
|
|
|
typedef void (*bbunit_testfunc)(void);
|
|
|
|
struct bbunit_listelem {
|
|
const char* name;
|
|
bbunit_testfunc testfunc;
|
|
};
|
|
|
|
void bbunit_registertest(struct bbunit_listelem* test);
|
|
void bbunit_settestfailed(void);
|
|
|
|
#define BBUNIT_DEFINE_TEST(NAME) \
|
|
static void bbunit_##NAME##_test(void); \
|
|
static struct bbunit_listelem bbunit_##NAME##_elem = { \
|
|
.name = #NAME, \
|
|
.testfunc = bbunit_##NAME##_test, \
|
|
}; \
|
|
static void INIT_FUNC bbunit_##NAME##_register(void) \
|
|
{ \
|
|
bbunit_registertest(&bbunit_##NAME##_elem); \
|
|
} \
|
|
static void bbunit_##NAME##_test(void)
|
|
|
|
/*
|
|
* Both 'goto bbunit_end' and 'break' are here only to get rid
|
|
* of compiler warnings.
|
|
*/
|
|
#define BBUNIT_ENDTEST \
|
|
do { \
|
|
goto bbunit_end; \
|
|
bbunit_end: \
|
|
break; \
|
|
} while (0)
|
|
|
|
#define BBUNIT_PRINTASSERTFAIL \
|
|
do { \
|
|
bb_error_msg( \
|
|
"[ERROR] Assertion failed in file %s, line %d", \
|
|
__FILE__, __LINE__); \
|
|
} while (0)
|
|
|
|
#define BBUNIT_ASSERTION_FAILED \
|
|
do { \
|
|
bbunit_settestfailed(); \
|
|
goto bbunit_end; \
|
|
} while (0)
|
|
|
|
/*
|
|
* Assertions.
|
|
* For now we only offer assertions which cause tests to fail
|
|
* immediately. In the future 'expects' might be added too -
|
|
* similar to those offered by the gtest framework.
|
|
*/
|
|
#define BBUNIT_ASSERT_EQ(EXPECTED, ACTUAL) \
|
|
do { \
|
|
if ((EXPECTED) != (ACTUAL)) { \
|
|
BBUNIT_PRINTASSERTFAIL; \
|
|
bb_error_msg("[ERROR] '%s' isn't equal to '%s'", \
|
|
#EXPECTED, #ACTUAL); \
|
|
BBUNIT_ASSERTION_FAILED; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define BBUNIT_ASSERT_NOTEQ(EXPECTED, ACTUAL) \
|
|
do { \
|
|
if ((EXPECTED) == (ACTUAL)) { \
|
|
BBUNIT_PRINTASSERTFAIL; \
|
|
bb_error_msg("[ERROR] '%s' is equal to '%s'", \
|
|
#EXPECTED, #ACTUAL); \
|
|
BBUNIT_ASSERTION_FAILED; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define BBUNIT_ASSERT_NOTNULL(PTR) \
|
|
do { \
|
|
if ((PTR) == NULL) { \
|
|
BBUNIT_PRINTASSERTFAIL; \
|
|
bb_error_msg("[ERROR] '%s' is NULL!", #PTR); \
|
|
BBUNIT_ASSERTION_FAILED; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define BBUNIT_ASSERT_NULL(PTR) \
|
|
do { \
|
|
if ((PTR) != NULL) { \
|
|
BBUNIT_PRINTASSERTFAIL; \
|
|
bb_error_msg("[ERROR] '%s' is not NULL!", #PTR); \
|
|
BBUNIT_ASSERTION_FAILED; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define BBUNIT_ASSERT_FALSE(STATEMENT) \
|
|
do { \
|
|
if ((STATEMENT)) { \
|
|
BBUNIT_PRINTASSERTFAIL; \
|
|
bb_error_msg("[ERROR] Statement '%s' evaluated to true!", \
|
|
#STATEMENT); \
|
|
BBUNIT_ASSERTION_FAILED; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define BBUNIT_ASSERT_TRUE(STATEMENT) \
|
|
do { \
|
|
if (!(STATEMENT)) { \
|
|
BBUNIT_PRINTASSERTFAIL; \
|
|
bb_error_msg("[ERROR] Statement '%s' evaluated to false!", \
|
|
#STATEMENT); \
|
|
BBUNIT_ASSERTION_FAILED; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define BBUNIT_ASSERT_STREQ(STR1, STR2) \
|
|
do { \
|
|
if (strcmp(STR1, STR2) != 0) { \
|
|
BBUNIT_PRINTASSERTFAIL; \
|
|
bb_error_msg("[ERROR] Strings '%s' and '%s' " \
|
|
"are not the same", STR1, STR2); \
|
|
BBUNIT_ASSERTION_FAILED; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define BBUNIT_ASSERT_STRNOTEQ(STR1, STR2) \
|
|
do { \
|
|
if (strcmp(STR1, STR2) == 0) { \
|
|
BBUNIT_PRINTASSERTFAIL; \
|
|
bb_error_msg("[ERROR] Strings '%s' and '%s' " \
|
|
"are the same, but were " \
|
|
"expected to differ", STR1, STR2); \
|
|
BBUNIT_ASSERTION_FAILED; \
|
|
} \
|
|
} while (0)
|
|
|
|
|
|
POP_SAVED_FUNCTION_VISIBILITY
|
|
|
|
#endif
|