cdf62770af
login,su: fix setup_environment() so that it works as intended
(parameter names were a bit misleading)
fdisk: shrink
help text: shrink
function old new delta
login_main 1658 1701 +43
setup_environment 206 203 -3
dos_compatible_flag 4 1 -3
dos2unix_main 383 375 -8
get_boot 1724 1702 -22
fdisk_main 2949 2889 -60
packed_usage 24250 23948 -302
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/6 up/down: 43/-398) Total: -355 bytes
text data bss dec hex filename
798768 661 7428 806857 c4fc9 busybox_old
798327 658 7428 806413 c4e0d busybox_unstripped
1330 lines
47 KiB
C
1330 lines
47 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Busybox main internal header file
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*
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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 the GPL.
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*
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* Licensed under the GPL version 2, see the file LICENSE in this tarball.
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*/
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#ifndef __LIBBUSYBOX_H__
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#define __LIBBUSYBOX_H__ 1
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#include "platform.h"
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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 <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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#include <sys/poll.h>
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#include <sys/ioctl.h>
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#include <sys/mman.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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#include <sys/wait.h>
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#include <termios.h>
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#include <time.h>
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#include <unistd.h>
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#include <utime.h>
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/* Try to pull in PATH_MAX */
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#include <limits.h>
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#include <sys/param.h>
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#ifndef PATH_MAX
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#define PATH_MAX 256
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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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#if ENABLE_SELINUX
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#include <selinux/selinux.h>
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#include <selinux/context.h>
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#include <selinux/flask.h>
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#include <selinux/av_permissions.h>
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#endif
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#if ENABLE_LOCALE_SUPPORT
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#include <locale.h>
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#else
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#define setlocale(x,y) ((void)0)
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#endif
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#include "pwd_.h"
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#include "grp_.h"
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/* ifdef it out, because it may include <shadow.h> */
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/* and we may not even _have_ <shadow.h>! */
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#if ENABLE_FEATURE_SHADOWPASSWDS
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#include "shadow_.h"
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#endif
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/* Some libc's don't declare it, help them */
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extern char **environ;
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#if defined(__GLIBC__) && __GLIBC__ < 2
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int vdprintf(int d, const char *format, va_list ap);
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#endif
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/* klogctl is in libc's klog.h, but we cheat and not #include that */
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int klogctl(int type, char *b, int len);
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/* This is declared here rather than #including <libgen.h> in order to avoid
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* confusing the two versions of basename. See the dirname/basename man page
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* for details. */
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char *dirname(char *path);
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/* Include our own copy of struct sysinfo to avoid binary compatibility
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* problems with Linux 2.4, which changed things. Grumble, grumble. */
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struct sysinfo {
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long uptime; /* Seconds since boot */
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unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
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unsigned long totalram; /* Total usable main memory size */
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unsigned long freeram; /* Available memory size */
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unsigned long sharedram; /* Amount of shared memory */
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unsigned long bufferram; /* Memory used by buffers */
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unsigned long totalswap; /* Total swap space size */
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unsigned long freeswap; /* swap space still available */
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unsigned short procs; /* Number of current processes */
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unsigned short pad; /* Padding needed for m68k */
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unsigned long totalhigh; /* Total high memory size */
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unsigned long freehigh; /* Available high memory size */
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unsigned int mem_unit; /* Memory unit size in bytes */
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char _f[20 - 2*sizeof(long) - sizeof(int)]; /* Padding: libc5 uses this.. */
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};
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int sysinfo(struct sysinfo* info);
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/* Tested to work correctly with all int types (IIRC :]) */
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#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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)
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#define MININT(T) (T)( \
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((T)-1) > 0 \
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? (T)0 \
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: ((T)1 << (sizeof(T)*8-1)) \
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)
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/* Large file support */
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/* Note that CONFIG_LFS=y forces bbox to be built with all common ops
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* (stat, lseek etc) mapped to "largefile" variants by libc.
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* Practically it means that open() automatically has O_LARGEFILE added
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* and all filesize/file_offset parameters and struct members are "large"
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* (in today's world - signed 64bit). For full support of large files,
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* we need a few helper #defines (below) and careful use of off_t
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* instead of int/ssize_t. No lseek64(), O_LARGEFILE etc necessary */
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#if ENABLE_LFS
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/* CONFIG_LFS is on */
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# if ULONG_MAX > 0xffffffff
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/* "long" is long enough on this system */
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# define XATOOFF(a) xatoul_range(a, 0, LONG_MAX)
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/* usage: sz = BB_STRTOOFF(s, NULL, 10); if (errno || sz < 0) die(); */
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# define BB_STRTOOFF bb_strtoul
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# define STRTOOFF strtoul
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/* usage: printf("size: %"OFF_FMT"d (%"OFF_FMT"x)\n", sz, sz); */
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# define OFF_FMT "l"
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# else
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/* "long" is too short, need "long long" */
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# define XATOOFF(a) xatoull_range(a, 0, LLONG_MAX)
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# define BB_STRTOOFF bb_strtoull
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# define STRTOOFF strtoull
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# define OFF_FMT "ll"
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# endif
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#else
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/* CONFIG_LFS is off */
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# if UINT_MAX == 0xffffffff
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/* While sizeof(off_t) == sizeof(int), off_t is typedef'ed to long anyway.
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* gcc will throw warnings on printf("%d", off_t). Crap... */
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# define XATOOFF(a) xatoi_u(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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# 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
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/* 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)))
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/* Some useful definitions */
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#undef FALSE
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#define FALSE ((int) 0)
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#undef TRUE
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#define TRUE ((int) 1)
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#undef SKIP
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#define SKIP ((int) 2)
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/* for mtab.c */
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#define MTAB_GETMOUNTPT '1'
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#define MTAB_GETDEVICE '2'
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#define BUF_SIZE 8192
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#define EXPAND_ALLOC 1024
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/* Macros for min/max. */
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#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))
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#endif
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/* buffer allocation schemes */
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#if ENABLE_FEATURE_BUFFERS_GO_ON_STACK
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#define RESERVE_CONFIG_BUFFER(buffer,len) char buffer[len]
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#define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char buffer[len]
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#define RELEASE_CONFIG_BUFFER(buffer) ((void)0)
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#else
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#if ENABLE_FEATURE_BUFFERS_GO_IN_BSS
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#define RESERVE_CONFIG_BUFFER(buffer,len) static char buffer[len]
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#define RESERVE_CONFIG_UBUFFER(buffer,len) static unsigned char buffer[len]
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#define RELEASE_CONFIG_BUFFER(buffer) ((void)0)
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#else
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#define RESERVE_CONFIG_BUFFER(buffer,len) char *buffer = xmalloc(len)
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#define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char *buffer = xmalloc(len)
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#define RELEASE_CONFIG_BUFFER(buffer) free(buffer)
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#endif
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#endif
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#if defined(__GLIBC__)
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/* glibc uses __errno_location() to get a ptr to errno */
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/* We can just memorize it once - no multithreading in busybox :) */
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extern int *const bb_errno;
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#undef errno
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#define errno (*bb_errno)
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#endif
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unsigned long long monotonic_us(void);
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unsigned monotonic_sec(void);
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extern void chomp(char *s);
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extern void trim(char *s);
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extern char *skip_whitespace(const char *);
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extern char *skip_non_whitespace(const char *);
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//TODO: supply a pointer to char[11] buffer (avoid statics)?
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extern const char *bb_mode_string(mode_t mode);
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extern int is_directory(const char *name, int followLinks, struct stat *statBuf);
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extern int remove_file(const char *path, int flags);
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extern int copy_file(const char *source, const char *dest, int flags);
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enum {
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ACTION_RECURSE = (1 << 0),
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ACTION_FOLLOWLINKS = (1 << 1),
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ACTION_FOLLOWLINKS_L0 = (1 << 2),
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ACTION_DEPTHFIRST = (1 << 3),
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/*ACTION_REVERSE = (1 << 4), - unused */
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};
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extern int recursive_action(const char *fileName, unsigned flags,
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int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData, int depth),
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int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData, int depth),
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void* userData, unsigned depth);
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extern int device_open(const char *device, int mode);
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extern int getpty(char *line, int size);
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extern int get_console_fd(void);
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extern char *find_block_device(const char *path);
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/* bb_copyfd_XX print read/write errors and return -1 if they occur */
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extern off_t bb_copyfd_eof(int fd1, int fd2);
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extern off_t bb_copyfd_size(int fd1, int fd2, off_t size);
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extern void bb_copyfd_exact_size(int fd1, int fd2, off_t size);
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/* "short" copy can be detected by return value < size */
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/* this helper yells "short read!" if param is not -1 */
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extern void complain_copyfd_and_die(off_t sz) ATTRIBUTE_NORETURN;
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extern char bb_process_escape_sequence(const char **ptr);
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/* xxxx_strip version can modify its parameter:
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* "/" -> "/"
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* "abc" -> "abc"
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* "abc/def" -> "def"
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* "abc/def/" -> "def" !!
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*/
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extern char *bb_get_last_path_component_strip(char *path);
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/* "abc/def/" -> "" and it never modifies 'path' */
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extern char *bb_get_last_path_component_nostrip(const char *path);
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int ndelay_on(int fd);
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int ndelay_off(int fd);
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int close_on_exec_on(int fd);
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void xdup2(int, int);
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void xmove_fd(int, int);
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DIR *xopendir(const char *path);
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DIR *warn_opendir(const char *path);
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/* UNUSED: char *xmalloc_realpath(const char *path); */
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char *xmalloc_readlink(const char *path);
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char *xmalloc_readlink_or_warn(const char *path);
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char *xrealloc_getcwd_or_warn(char *cwd);
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char *xmalloc_follow_symlinks(const char *path);
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enum {
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/* bb_signals(BB_SIGS_FATAL, handler) catches all signals which
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* otherwise would kill us, except for those resulting from bugs:
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* SIGSEGV, SIGILL, SIGFPE.
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* Other fatal signals not included (TODO?):
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* SIGBUS Bus error (bad memory access)
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* SIGPOLL Pollable event. Synonym of SIGIO
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* SIGPROF Profiling timer expired
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* SIGSYS Bad argument to routine
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* SIGTRAP Trace/breakpoint trap
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*/
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BB_SIGS_FATAL = 0
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+ (1 << SIGHUP)
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+ (1 << SIGINT)
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+ (1 << SIGTERM)
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+ (1 << SIGPIPE) // Write to pipe with no readers
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+ (1 << SIGQUIT) // Quit from keyboard
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+ (1 << SIGABRT) // Abort signal from abort(3)
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+ (1 << SIGALRM) // Timer signal from alarm(2)
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+ (1 << SIGVTALRM) // Virtual alarm clock
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+ (1 << SIGXCPU) // CPU time limit exceeded
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+ (1 << SIGXFSZ) // File size limit exceeded
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+ (1 << SIGUSR1) // Yes kids, these are also fatal!
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+ (1 << SIGUSR2)
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+ 0,
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};
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void bb_signals(int sigs, void (*f)(int));
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/* Unlike signal() and bb_signals, sets handler with sigaction()
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* and in a way that while signal handler is run, no other signals
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* will be blocked: */
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void bb_signals_recursive(int sigs, void (*f)(int));
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/* syscalls like read() will be interrupted with EINTR: */
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void signal_no_SA_RESTART_empty_mask(int sig, void (*handler)(int));
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/* syscalls like read() won't be interrupted (though select/poll will be): */
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void signal_SA_RESTART_empty_mask(int sig, void (*handler)(int));
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void wait_for_any_sig(void);
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void kill_myself_with_sig(int sig) ATTRIBUTE_NORETURN;
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void sig_block(int sig);
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void sig_unblock(int sig);
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/* Will do sigaction(signum, act, NULL): */
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int sigaction_set(int sig, const struct sigaction *act);
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/* SIG_BLOCK/SIG_UNBLOCK all signals: */
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int sigprocmask_allsigs(int how);
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void xsetgid(gid_t gid);
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void xsetuid(uid_t uid);
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void xchdir(const char *path);
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void xchroot(const char *path);
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void xsetenv(const char *key, const char *value);
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void xunlink(const char *pathname);
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void xstat(const char *pathname, struct stat *buf);
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int xopen(const char *pathname, int flags);
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int xopen3(const char *pathname, int flags, int mode);
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int open_or_warn(const char *pathname, int flags);
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int open3_or_warn(const char *pathname, int flags, int mode);
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void xrename(const char *oldpath, const char *newpath);
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int rename_or_warn(const char *oldpath, const char *newpath);
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off_t xlseek(int fd, off_t offset, int whence);
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off_t fdlength(int fd);
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void xpipe(int filedes[2]);
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/* In this form code with pipes is much more readable */
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struct fd_pair { int rd; int wr; };
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#define piped_pair(pair) pipe(&((pair).rd))
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#define xpiped_pair(pair) xpipe(&((pair).rd))
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|
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/* Useful for having small structure members/global variables */
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typedef int8_t socktype_t;
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typedef int8_t family_t;
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struct BUG_too_small {
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char BUG_socktype_t_too_small[(0
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| SOCK_STREAM
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| SOCK_DGRAM
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| SOCK_RDM
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| SOCK_SEQPACKET
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| SOCK_RAW
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) <= 127 ? 1 : -1];
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char BUG_family_t_too_small[(0
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| AF_UNSPEC
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| AF_INET
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| AF_INET6
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| AF_UNIX
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#ifdef AF_PACKET
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| AF_PACKET
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#endif
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|
#ifdef AF_NETLINK
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|
| AF_NETLINK
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|
#endif
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/* | AF_DECnet */
|
|
/* | AF_IPX */
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) <= 127 ? 1 : -1];
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};
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|
|
|
|
int xsocket(int domain, int type, int protocol);
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|
void xbind(int sockfd, struct sockaddr *my_addr, socklen_t addrlen);
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|
void xlisten(int s, int backlog);
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void xconnect(int s, const struct sockaddr *s_addr, socklen_t addrlen);
|
|
ssize_t xsendto(int s, const void *buf, size_t len, const struct sockaddr *to,
|
|
socklen_t tolen);
|
|
/* 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
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|
* 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); /* On Linux this never fails. */
|
|
int setsockopt_broadcast(int fd);
|
|
/* NB: returns port in host byte order */
|
|
unsigned bb_lookup_port(const char *port, const char *protocol, unsigned default_port);
|
|
typedef struct len_and_sockaddr {
|
|
socklen_t len;
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|
union {
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|
struct sockaddr sa;
|
|
struct sockaddr_in sin;
|
|
#if ENABLE_FEATURE_IPV6
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|
struct sockaddr_in6 sin6;
|
|
#endif
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} u;
|
|
} len_and_sockaddr;
|
|
enum {
|
|
LSA_LEN_SIZE = offsetof(len_and_sockaddr, u),
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|
LSA_SIZEOF_SA = sizeof(
|
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union {
|
|
struct sockaddr sa;
|
|
struct sockaddr_in sin;
|
|
#if ENABLE_FEATURE_IPV6
|
|
struct sockaddr_in6 sin6;
|
|
#endif
|
|
}
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|
)
|
|
};
|
|
/* 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, IPv4.
|
|
*/
|
|
#if ENABLE_FEATURE_IPV6
|
|
int xsocket_type(len_and_sockaddr **lsap, int af, int sock_type);
|
|
#else
|
|
int xsocket_type(len_and_sockaddr **lsap, int sock_type);
|
|
#define xsocket_type(lsap, af, sock_type) xsocket_type((lsap), (sock_type))
|
|
#endif
|
|
int xsocket_stream(len_and_sockaddr **lsap);
|
|
/* 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);
|
|
int create_and_bind_dgram_or_die(const char *bindaddr, int port);
|
|
/* 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);
|
|
/* Connect to peer identified by lsa */
|
|
int xconnect_stream(const len_and_sockaddr *lsa);
|
|
/* 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);
|
|
/* Version which dies on error */
|
|
len_and_sockaddr* xhost2sockaddr(const char *host, int port);
|
|
len_and_sockaddr* xdotted2sockaddr(const char *host, int port);
|
|
/* 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);
|
|
len_and_sockaddr* xhost_and_af2sockaddr(const char *host, int port, sa_family_t af);
|
|
#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(len_and_sockaddr *lsa, unsigned port);
|
|
/* Retrieve sin[6]_port or return -1 for non-INET[6] lsa's */
|
|
int get_nport(const struct sockaddr *sa);
|
|
/* Reverse DNS. Returns NULL on failure. */
|
|
char* xmalloc_sockaddr2host(const struct sockaddr *sa);
|
|
/* This one doesn't append :PORTNUM */
|
|
char* xmalloc_sockaddr2host_noport(const struct sockaddr *sa);
|
|
/* This one also doesn't fall back to dotted IP (returns NULL) */
|
|
char* xmalloc_sockaddr2hostonly_noport(const struct sockaddr *sa);
|
|
/* inet_[ap]ton on steroids */
|
|
char* xmalloc_sockaddr2dotted(const struct sockaddr *sa);
|
|
char* xmalloc_sockaddr2dotted_noport(const struct sockaddr *sa);
|
|
// "old" (ipv4 only) API
|
|
// users: traceroute.c hostname.c - use _list_ of all IPs
|
|
struct hostent *xgethostbyname(const char *name);
|
|
// Also mount.c and inetd.c are using gethostbyname(),
|
|
// + inet_common.c has additional IPv4-only stuff
|
|
|
|
|
|
void socket_want_pktinfo(int fd);
|
|
ssize_t send_to_from(int fd, void *buf, size_t len, int flags,
|
|
const struct sockaddr *from, const struct sockaddr *to,
|
|
socklen_t tolen);
|
|
ssize_t recv_from_to(int fd, void *buf, size_t len, int flags,
|
|
struct sockaddr *from, struct sockaddr *to,
|
|
socklen_t sa_size);
|
|
|
|
char *xstrdup(const char *s);
|
|
char *xstrndup(const char *s, int n);
|
|
char *safe_strncpy(char *dst, const char *src, size_t size);
|
|
/* 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);
|
|
char *xasprintf(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
|
|
/* Prints unprintable chars 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);
|
|
// 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])))
|
|
|
|
/* dmalloc will redefine these to it's own implementation. It is safe
|
|
* to have the prototypes here unconditionally. */
|
|
extern void *malloc_or_warn(size_t size);
|
|
extern void *xmalloc(size_t size);
|
|
extern void *xzalloc(size_t size);
|
|
extern void *xrealloc(void *old, size_t size);
|
|
|
|
extern ssize_t safe_read(int fd, void *buf, size_t count);
|
|
extern ssize_t nonblock_safe_read(int fd, void *buf, size_t count);
|
|
// 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);
|
|
extern void xread(int fd, void *buf, size_t count);
|
|
extern unsigned char xread_char(int fd);
|
|
// Read one line a-la fgets. Uses one read(), works only on seekable streams
|
|
extern char *reads(int fd, char *buf, size_t count);
|
|
// Read one line a-la fgets. 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, char *pfx);
|
|
extern ssize_t read_close(int fd, void *buf, size_t count);
|
|
extern ssize_t open_read_close(const char *filename, void *buf, size_t count);
|
|
extern void *xmalloc_open_read_close(const char *filename, size_t *sizep);
|
|
|
|
extern ssize_t safe_write(int fd, const void *buf, size_t count);
|
|
// 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);
|
|
extern void xwrite(int fd, const void *buf, size_t count);
|
|
|
|
/* Reads and prints to stdout till eof, then closes FILE. Exits on error: */
|
|
extern void xprint_and_close_file(FILE *file);
|
|
/* Reads up to (and including) TERMINATING_STRING: */
|
|
extern char *xmalloc_fgets_str(FILE *file, const char *terminating_string);
|
|
/* Chops off TERMINATING_STRING: from the end: */
|
|
extern char *xmalloc_fgetline_str(FILE *file, const char *terminating_string);
|
|
/* Reads up to (and including) "\n" or NUL byte */
|
|
extern char *xmalloc_fgets(FILE *file);
|
|
/* Chops off '\n' from the end, unlike fgets: */
|
|
extern char *xmalloc_getline(FILE *file);
|
|
extern char *bb_get_chunk_from_file(FILE *file, int *end);
|
|
extern void die_if_ferror(FILE *file, const char *msg);
|
|
extern void die_if_ferror_stdout(void);
|
|
extern void xfflush_stdout(void);
|
|
extern void fflush_stdout_and_exit(int retval) ATTRIBUTE_NORETURN;
|
|
extern int fclose_if_not_stdin(FILE *file);
|
|
extern FILE *xfopen(const char *filename, const char *mode);
|
|
/* Prints warning to stderr and returns NULL on failure: */
|
|
extern FILE *fopen_or_warn(const char *filename, const char *mode);
|
|
/* "Opens" stdin if filename is special, else just opens file: */
|
|
extern FILE *fopen_or_warn_stdin(const char *filename);
|
|
|
|
int bb_pstrcmp(const void *a, const void *b);
|
|
void qsort_string_vector(char **sv, unsigned count);
|
|
|
|
/* 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);
|
|
|
|
char *safe_gethostname(void);
|
|
|
|
/* Convert each alpha char in str to lower-case */
|
|
char* str_tolower(char *str);
|
|
|
|
char *utoa(unsigned n);
|
|
char *itoa(int n);
|
|
/* Returns a pointer past the formatted number, does NOT null-terminate */
|
|
char *utoa_to_buf(unsigned n, char *buf, unsigned buflen);
|
|
char *itoa_to_buf(int n, char *buf, unsigned buflen);
|
|
/* Intelligent formatters of bignums */
|
|
void smart_ulltoa4(unsigned long long ul, char buf[5], const char *scale);
|
|
void smart_ulltoa5(unsigned long long ul, char buf[5], const char *scale);
|
|
//TODO: provide pointer to buf (avoid statics)?
|
|
const char *make_human_readable_str(unsigned long long size,
|
|
unsigned long block_size, unsigned long display_unit);
|
|
/* Put a string of hex bytes ("1b2e66fe"...), return advanced pointer */
|
|
char *bin2hex(char *buf, const char *cp, int count);
|
|
|
|
/* Last element is marked by mult == 0 */
|
|
struct suffix_mult {
|
|
char suffix[4];
|
|
unsigned mult;
|
|
};
|
|
#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 */
|
|
int xatoi_u(const char *numstr);
|
|
/* Useful for reading port numbers */
|
|
uint16_t xatou16(const char *numstr);
|
|
|
|
|
|
/* 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);
|
|
long xgroup2gid(const char *name);
|
|
/* wrapper: allows string to contain numeric uid or gid */
|
|
unsigned long get_ug_id(const char *s, long (*xname2id)(const char *));
|
|
/* from chpst. Does not die, returns 0 on failure */
|
|
struct bb_uidgid_t {
|
|
uid_t uid;
|
|
gid_t gid;
|
|
};
|
|
/* always sets uid and gid */
|
|
int get_uidgid(struct bb_uidgid_t*, const char*, int numeric_ok);
|
|
/* chown-like handling of "user[:[group]" */
|
|
void parse_chown_usergroup_or_die(struct bb_uidgid_t *u, char *user_group);
|
|
/* bb_getpwuid, bb_getgrgid:
|
|
* bb_getXXXid(buf, bufsz, id) - copy user/group name or id
|
|
* as a string to buf, return user/group name or NULL
|
|
* bb_getXXXid(NULL, 0, id) - return user/group name or NULL
|
|
* bb_getXXXid(NULL, -1, id) - return user/group name or exit
|
|
*/
|
|
char *bb_getpwuid(char *name, int bufsize, long uid);
|
|
char *bb_getgrgid(char *group, int bufsize, long gid);
|
|
/* versions which cache results (useful for ps, ls etc) */
|
|
const char* get_cached_username(uid_t uid);
|
|
const char* get_cached_groupname(gid_t gid);
|
|
void clear_username_cache(void);
|
|
/* internally usernames are saved in fixed-sized char[] buffers */
|
|
enum { USERNAME_MAX_SIZE = 16 - sizeof(int) };
|
|
|
|
|
|
int execable_file(const char *name);
|
|
char *find_execable(const char *filename);
|
|
int exists_execable(const char *filename);
|
|
|
|
/* 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[]);
|
|
#define BB_EXECVP(prog,cmd) bb_execvp(prog,cmd)
|
|
#define BB_EXECLP(prog,cmd,...) \
|
|
execlp((find_applet_by_name(prog) >= 0) ? CONFIG_BUSYBOX_EXEC_PATH : prog, \
|
|
cmd, __VA_ARGS__)
|
|
#else
|
|
#define BB_EXECVP(prog,cmd) execvp(prog,cmd)
|
|
#define BB_EXECLP(prog,cmd,...) execlp(prog,cmd, __VA_ARGS__)
|
|
#endif
|
|
|
|
/* NOMMU friendy fork+exec */
|
|
pid_t spawn(char **argv);
|
|
pid_t xspawn(char **argv);
|
|
|
|
int safe_waitpid(int pid, int *wstat, int options);
|
|
/* Unlike waitpid, waits ONLY for one process.
|
|
* 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);
|
|
*/
|
|
int wait4pid(int pid);
|
|
int wait_any_nohang(int *wstat);
|
|
#define wait_crashed(w) ((w) & 127)
|
|
#define wait_exitcode(w) ((w) >> 8)
|
|
#define wait_stopsig(w) ((w) >> 8)
|
|
#define wait_stopped(w) (((w) & 127) == 127)
|
|
/* wait4pid(spawn(argv)) + NOFORK/NOEXEC (if configured) */
|
|
int spawn_and_wait(char **argv);
|
|
struct nofork_save_area {
|
|
jmp_buf die_jmp;
|
|
const char *applet_name;
|
|
int xfunc_error_retval;
|
|
uint32_t option_mask32;
|
|
int die_sleep;
|
|
smallint saved;
|
|
};
|
|
void save_nofork_data(struct nofork_save_area *save);
|
|
void restore_nofork_data(struct nofork_save_area *save);
|
|
/* Does NOT check that applet is NOFORK, just blindly runs it */
|
|
int run_nofork_applet(int applet_no, char **argv);
|
|
int run_nofork_applet_prime(struct nofork_save_area *old, int applet_no, char **argv);
|
|
|
|
/* 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()).
|
|
*
|
|
* forkexit_or_rexec(argv) = bare-bones "fork + parent exits" on MMU,
|
|
* "vfork + re-exec ourself" on NOMMU. No fd redirection, no setsid().
|
|
* Currently used for openvt. 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,
|
|
DAEMON_DEVNULL_STDIO = 2,
|
|
DAEMON_CLOSE_EXTRA_FDS = 4,
|
|
DAEMON_ONLY_SANITIZE = 8, /* internal use */
|
|
};
|
|
#if BB_MMU
|
|
void forkexit_or_rexec(void);
|
|
enum { re_execed = 0 };
|
|
# define forkexit_or_rexec(argv) forkexit_or_rexec()
|
|
# define bb_daemonize_or_rexec(flags, argv) bb_daemonize_or_rexec(flags)
|
|
# define bb_daemonize(flags) bb_daemonize_or_rexec(flags, bogus)
|
|
#else
|
|
void re_exec(char **argv) ATTRIBUTE_NORETURN;
|
|
void forkexit_or_rexec(char **argv);
|
|
extern bool re_execed;
|
|
int BUG_fork_is_unavailable_on_nommu(void);
|
|
int BUG_daemon_is_unavailable_on_nommu(void);
|
|
void BUG_bb_daemonize_is_unavailable_on_nommu(void);
|
|
# define fork() 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);
|
|
void bb_sanitize_stdio(void);
|
|
/* Clear dangerous stuff, set PATH. Return 1 if was run by different user. */
|
|
int sanitize_env_if_suid(void);
|
|
|
|
|
|
extern const char *opt_complementary;
|
|
#if ENABLE_GETOPT_LONG
|
|
#define No_argument "\0"
|
|
#define Required_argument "\001"
|
|
#define Optional_argument "\002"
|
|
extern const char *applet_long_options;
|
|
#endif
|
|
extern uint32_t option_mask32;
|
|
extern uint32_t getopt32(char **argv, const char *applet_opts, ...);
|
|
|
|
|
|
typedef struct llist_t {
|
|
char *data;
|
|
struct llist_t *link;
|
|
} llist_t;
|
|
void llist_add_to(llist_t **old_head, void *data);
|
|
void llist_add_to_end(llist_t **list_head, void *data);
|
|
void *llist_pop(llist_t **elm);
|
|
void llist_unlink(llist_t **head, llist_t *elm);
|
|
void llist_free(llist_t *elm, void (*freeit)(void *data));
|
|
llist_t *llist_rev(llist_t *list);
|
|
/* 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);
|
|
#define remove_pidfile(path) do { if (wrote_pidfile) unlink(path); } while (0)
|
|
#else
|
|
enum { wrote_pidfile = 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 int die_sleep;
|
|
extern int xfunc_error_retval;
|
|
extern jmp_buf die_jmp;
|
|
extern void xfunc_die(void) ATTRIBUTE_NORETURN;
|
|
extern void bb_show_usage(void) ATTRIBUTE_NORETURN;
|
|
extern void bb_error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
|
|
extern void bb_error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
|
|
extern void bb_perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
|
|
extern void bb_simple_perror_msg(const char *s);
|
|
extern void bb_perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
|
|
extern void bb_simple_perror_msg_and_die(const char *s) __attribute__ ((noreturn));
|
|
extern void bb_herror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
|
|
extern void bb_herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
|
|
extern void bb_perror_nomsg_and_die(void) ATTRIBUTE_NORETURN;
|
|
extern void bb_perror_nomsg(void);
|
|
extern void bb_info_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
|
|
extern void bb_verror_msg(const char *s, va_list p, const char *strerr);
|
|
|
|
/* 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
|
|
|
|
|
|
/* applets which are useful from another applets */
|
|
int bb_cat(char** argv);
|
|
int echo_main(int argc, char** argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int test_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int kill_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
#if ENABLE_ROUTE
|
|
void bb_displayroutes(int noresolve, int netstatfmt);
|
|
#endif
|
|
int chown_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
#if ENABLE_GUNZIP
|
|
int gunzip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
#endif
|
|
#if ENABLE_BUNZIP2
|
|
int bunzip2_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
#endif
|
|
int bbunpack(char **argv,
|
|
char* (*make_new_name)(char *filename),
|
|
USE_DESKTOP(long long) int (*unpacker)(void)
|
|
);
|
|
|
|
|
|
/* Networking */
|
|
int create_icmp_socket(void);
|
|
int create_icmp6_socket(void);
|
|
/* interface.c */
|
|
/* This structure defines protocol families and their handlers. */
|
|
struct aftype {
|
|
const char *name;
|
|
const char *title;
|
|
int af;
|
|
int alen;
|
|
char *(*print) (unsigned char *);
|
|
const char *(*sprint) (struct sockaddr *, int numeric);
|
|
int (*input) (/*int type,*/ const char *bufp, struct sockaddr *);
|
|
void (*herror) (char *text);
|
|
int (*rprint) (int options);
|
|
int (*rinput) (int typ, int ext, char **argv);
|
|
|
|
/* may modify src */
|
|
int (*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 *(*print) (unsigned char *);
|
|
int (*input) (const char *, struct sockaddr *);
|
|
int (*activate) (int fd);
|
|
int suppress_null_addr;
|
|
};
|
|
extern smallint interface_opt_a;
|
|
int display_interfaces(char *ifname);
|
|
const struct aftype *get_aftype(const char *name);
|
|
const struct hwtype *get_hwtype(const char *name);
|
|
const struct hwtype *get_hwntype(int type);
|
|
|
|
|
|
#ifndef BUILD_INDIVIDUAL
|
|
extern int find_applet_by_name(const char *name);
|
|
/* Returns only if applet is not found. */
|
|
extern void run_applet_and_exit(const char *name, char **argv);
|
|
extern void run_applet_no_and_exit(int a, char **argv) ATTRIBUTE_NORETURN;
|
|
#endif
|
|
|
|
#ifdef HAVE_MNTENT_H
|
|
extern int match_fstype(const struct mntent *mt, const char *fstypes);
|
|
extern struct mntent *find_mount_point(const char *name, const char *table);
|
|
#endif
|
|
extern void erase_mtab(const char * name);
|
|
extern unsigned int tty_baud_to_value(speed_t speed);
|
|
extern speed_t tty_value_to_baud(unsigned int value);
|
|
extern void bb_warn_ignoring_args(int n);
|
|
|
|
extern int get_linux_version_code(void);
|
|
|
|
extern char *query_loop(const char *device);
|
|
extern int del_loop(const char *device);
|
|
/* If *devname is not NULL, use that name, otherwise try to find free one,
|
|
* malloc and return it in *devname.
|
|
* return value: 1: read-only loopdev was setup, 0: rw, < 0: error */
|
|
extern int set_loop(char **devname, const char *file, unsigned long long offset);
|
|
|
|
|
|
//TODO: pass buf pointer or return allocated buf (avoid statics)?
|
|
char *bb_askpass(int timeout, const char * prompt);
|
|
int bb_ask_confirmation(void);
|
|
|
|
extern int bb_parse_mode(const char* s, mode_t* theMode);
|
|
|
|
char *concat_path_file(const char *path, const char *filename);
|
|
char *concat_subpath_file(const char *path, const char *filename);
|
|
const char *bb_basename(const char *name);
|
|
/* NB: can violate const-ness (similarly to strchr) */
|
|
char *last_char_is(const char *s, int c);
|
|
|
|
|
|
USE_DESKTOP(long long) int uncompress(int fd_in, int fd_out);
|
|
int inflate(int in, int out);
|
|
|
|
|
|
int bb_make_directory(char *path, long mode, int flags);
|
|
|
|
int get_signum(const char *name);
|
|
const char *get_signame(int number);
|
|
void print_signames(void);
|
|
|
|
char *bb_simplify_path(const char *path);
|
|
|
|
#define FAIL_DELAY 3
|
|
extern void bb_do_delay(int seconds);
|
|
extern void change_identity(const struct passwd *pw);
|
|
extern void run_shell(const char *shell, int loginshell, const char *command, const char **additional_args) ATTRIBUTE_NORETURN;
|
|
extern void run_shell(const char *shell, int loginshell, const char *command, const char **additional_args);
|
|
#if ENABLE_SELINUX
|
|
extern void renew_current_security_context(void);
|
|
extern void set_current_security_context(security_context_t sid);
|
|
extern context_t set_security_context_component(security_context_t cur_context,
|
|
char *user, char *role, char *type, char *range);
|
|
extern void setfscreatecon_or_die(security_context_t scontext);
|
|
extern void selinux_preserve_fcontext(int fdesc);
|
|
#else
|
|
#define selinux_preserve_fcontext(fdesc) ((void)0)
|
|
#endif
|
|
extern void selinux_or_die(void);
|
|
extern int restricted_shell(const char *shell);
|
|
|
|
/* setup_environment:
|
|
* 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
|
|
*/
|
|
extern void setup_environment(const char *shell, int clear_env, int change_env, const struct passwd *pw);
|
|
extern int correct_password(const struct passwd *pw);
|
|
/* Returns a ptr to static storage */
|
|
extern char *pw_encrypt(const char *clear, const char *salt);
|
|
extern int obscure(const char *old, const char *newval, const struct passwd *pwdp);
|
|
|
|
int index_in_str_array(const char *const string_array[], const char *key);
|
|
int index_in_strings(const char *strings, const char *key);
|
|
int index_in_substr_array(const char *const string_array[], const char *key);
|
|
int index_in_substrings(const char *strings, const char *key);
|
|
const char *nth_string(const char *strings, int n);
|
|
|
|
extern void print_login_issue(const char *issue_file, const char *tty);
|
|
extern void print_login_prompt(void);
|
|
|
|
/* 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);
|
|
|
|
/* Returns number of lines changed, or -1 on error */
|
|
extern int update_passwd(const char *filename, const char *username,
|
|
const char *new_pw);
|
|
|
|
/* NB: typically you want to pass fd 0, not 1. Think 'applet | grep something' */
|
|
int get_terminal_width_height(int fd, int *width, int *height);
|
|
|
|
int ioctl_or_perror(int fd, int request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5)));
|
|
void ioctl_or_perror_and_die(int fd, int request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5)));
|
|
#if ENABLE_IOCTL_HEX2STR_ERROR
|
|
int bb_ioctl_or_warn(int fd, int request, void *argp, const char *ioctl_name);
|
|
void bb_xioctl(int fd, int request, void *argp, const char *ioctl_name);
|
|
#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, int request, void *argp);
|
|
void bb_xioctl(int fd, int request, void *argp);
|
|
#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);
|
|
void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
|
|
void reset_ino_dev_hashtable(void);
|
|
#ifdef __GLIBC__
|
|
/* At least glibc has horrendously large inline for this, so wrap it */
|
|
unsigned long long bb_makedev(unsigned int major, unsigned int minor);
|
|
#undef makedev
|
|
#define makedev(a,b) bb_makedev(a,b)
|
|
#endif
|
|
|
|
|
|
#if ENABLE_FEATURE_EDITING
|
|
/* It's NOT just ENABLEd or disabled. It's a number: */
|
|
#ifdef CONFIG_FEATURE_EDITING_HISTORY
|
|
#define MAX_HISTORY (CONFIG_FEATURE_EDITING_HISTORY + 0)
|
|
#else
|
|
#define MAX_HISTORY 0
|
|
#endif
|
|
typedef struct line_input_t {
|
|
int flags;
|
|
const char *path_lookup;
|
|
#if MAX_HISTORY
|
|
int cnt_history;
|
|
int cur_history;
|
|
USE_FEATURE_EDITING_SAVEHISTORY(const char *hist_file;)
|
|
char *history[MAX_HISTORY + 1];
|
|
#endif
|
|
} line_input_t;
|
|
enum {
|
|
DO_HISTORY = 1 * (MAX_HISTORY > 0),
|
|
SAVE_HISTORY = 2 * (MAX_HISTORY > 0) * ENABLE_FEATURE_EDITING_SAVEHISTORY,
|
|
TAB_COMPLETION = 4 * ENABLE_FEATURE_TAB_COMPLETION,
|
|
USERNAME_COMPLETION = 8 * ENABLE_FEATURE_USERNAME_COMPLETION,
|
|
VI_MODE = 0x10 * ENABLE_FEATURE_EDITING_VI,
|
|
WITH_PATH_LOOKUP = 0x20,
|
|
FOR_SHELL = DO_HISTORY | SAVE_HISTORY | TAB_COMPLETION | USERNAME_COMPLETION,
|
|
};
|
|
line_input_t *new_line_input_t(int flags);
|
|
/* 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(const char* prompt, char* command, int maxsize, line_input_t *state);
|
|
#else
|
|
int read_line_input(const char* prompt, char* command, int maxsize);
|
|
#define read_line_input(prompt, command, maxsize, state) \
|
|
read_line_input(prompt, command, maxsize)
|
|
#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
|
|
typedef struct procps_status_t {
|
|
DIR *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) */
|
|
char *argv0;
|
|
USE_SELINUX(char *context;)
|
|
/* 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;
|
|
unsigned tty_major,tty_minor;
|
|
#if ENABLE_FEATURE_TOPMEM
|
|
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;
|
|
#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 */
|
|
} procps_status_t;
|
|
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, - not implemented */
|
|
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,
|
|
PSSCAN_ARGVN = (1 << 16) * (ENABLE_PGREP | ENABLE_PKILL),
|
|
USE_SELINUX(PSSCAN_CONTEXT = 1 << 17,)
|
|
PSSCAN_START_TIME = 1 << 18,
|
|
/* These are all retrieved from proc/NN/stat in one go: */
|
|
PSSCAN_STAT = PSSCAN_PPID | PSSCAN_PGID | PSSCAN_SID
|
|
| PSSCAN_COMM | PSSCAN_STATE
|
|
| PSSCAN_VSZ | PSSCAN_RSS
|
|
| PSSCAN_STIME | PSSCAN_UTIME | PSSCAN_START_TIME
|
|
| PSSCAN_TTY,
|
|
};
|
|
procps_status_t* alloc_procps_scan(int flags);
|
|
void free_procps_scan(procps_status_t* sp);
|
|
procps_status_t* procps_scan(procps_status_t* sp, int flags);
|
|
/* Format cmdline (up to col chars) into char buf[col+1] */
|
|
/* Puts [comm] if cmdline is empty (-> process is a kernel thread) */
|
|
void read_cmdline(char *buf, int col, unsigned pid, const char *comm);
|
|
pid_t *find_pid_by_name(const char* procName);
|
|
pid_t *pidlist_reverse(pid_t *pidList);
|
|
|
|
|
|
extern const char bb_uuenc_tbl_base64[];
|
|
extern const char bb_uuenc_tbl_std[];
|
|
void bb_uuencode(char *store, const void *s, int length, const char *tbl);
|
|
|
|
typedef struct sha1_ctx_t {
|
|
uint32_t count[2];
|
|
uint32_t hash[5];
|
|
uint32_t wbuf[16];
|
|
} sha1_ctx_t;
|
|
void sha1_begin(sha1_ctx_t *ctx);
|
|
void sha1_hash(const void *data, size_t length, sha1_ctx_t *ctx);
|
|
void *sha1_end(void *resbuf, sha1_ctx_t *ctx);
|
|
|
|
typedef struct md5_ctx_t {
|
|
uint32_t A;
|
|
uint32_t B;
|
|
uint32_t C;
|
|
uint32_t D;
|
|
uint64_t total;
|
|
uint32_t buflen;
|
|
char buffer[128];
|
|
} md5_ctx_t;
|
|
void md5_begin(md5_ctx_t *ctx);
|
|
void md5_hash(const void *data, size_t length, md5_ctx_t *ctx);
|
|
void *md5_end(void *resbuf, md5_ctx_t *ctx);
|
|
|
|
uint32_t *crc32_filltable(uint32_t *tbl256, int endian);
|
|
|
|
|
|
enum { /* DO NOT CHANGE THESE VALUES! cp.c, mv.c, install.c depend on them. */
|
|
FILEUTILS_PRESERVE_STATUS = 1,
|
|
FILEUTILS_DEREFERENCE = 2,
|
|
FILEUTILS_RECUR = 4,
|
|
FILEUTILS_FORCE = 8,
|
|
FILEUTILS_INTERACTIVE = 0x10,
|
|
FILEUTILS_MAKE_HARDLINK = 0x20,
|
|
FILEUTILS_MAKE_SOFTLINK = 0x40,
|
|
#if ENABLE_SELINUX
|
|
FILEUTILS_PRESERVE_SECURITY_CONTEXT = 0x80,
|
|
FILEUTILS_SET_SECURITY_CONTEXT = 0x100
|
|
#endif
|
|
};
|
|
|
|
#define FILEUTILS_CP_OPTSTR "pdRfils" USE_SELINUX("c")
|
|
extern const char *applet_name;
|
|
/* "BusyBox vN.N.N (timestamp or extra_version)" */
|
|
extern const char bb_banner[];
|
|
extern const char bb_msg_memory_exhausted[];
|
|
extern const char bb_msg_invalid_date[];
|
|
extern const char bb_msg_read_error[];
|
|
extern const char bb_msg_write_error[];
|
|
extern const char bb_msg_unknown[];
|
|
extern const char bb_msg_can_not_create_raw_socket[];
|
|
extern const char bb_msg_perm_denied_are_you_root[];
|
|
extern const char bb_msg_requires_arg[];
|
|
extern const char bb_msg_invalid_arg[];
|
|
extern const char bb_msg_standard_input[];
|
|
extern const char bb_msg_standard_output[];
|
|
|
|
extern const char bb_str_default[];
|
|
/* NB: (bb_hexdigits_upcase[i] | 0x20) -> lowercase hex digit */
|
|
extern const char bb_hexdigits_upcase[];
|
|
|
|
extern const char bb_path_mtab_file[];
|
|
extern const char bb_path_passwd_file[];
|
|
extern const char bb_path_shadow_file[];
|
|
extern const char bb_path_gshadow_file[];
|
|
extern const char bb_path_group_file[];
|
|
extern const char bb_path_motd_file[];
|
|
extern const char bb_path_wtmp_file[];
|
|
extern const char bb_dev_null[];
|
|
extern const char bb_busybox_exec_path[];
|
|
/* util-linux manpage says /sbin:/bin:/usr/sbin:/usr/bin,
|
|
* but I want to save a few bytes here */
|
|
extern const char bb_PATH_root_path[]; /* "PATH=/sbin:/usr/sbin:/bin:/usr/bin" */
|
|
#define bb_default_root_path (bb_PATH_root_path + sizeof("PATH"))
|
|
#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;
|
|
|
|
|
|
#ifndef BUFSIZ
|
|
#define BUFSIZ 4096
|
|
#endif
|
|
/* Providing hard guarantee on minimum size (think of BUFSIZ == 128) */
|
|
enum { COMMON_BUFSIZE = (BUFSIZ >= 256*sizeof(void*) ? BUFSIZ+1 : 256*sizeof(void*)) };
|
|
extern char bb_common_bufsiz1[COMMON_BUFSIZE];
|
|
/* 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;
|
|
/* At least gcc 3.4.6 on mipsel system needs optimization barrier */
|
|
#define barrier() asm volatile("":::"memory")
|
|
#define SET_PTR_TO_GLOBALS(x) do { \
|
|
(*(struct globals**)&ptr_to_globals) = (x); \
|
|
barrier(); \
|
|
} 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[];
|
|
/* "/bin/sh" */
|
|
#define DEFAULT_SHELL (bb_default_login_shell+1)
|
|
/* "sh" */
|
|
#define DEFAULT_SHELL_SHORT_NAME (bb_default_login_shell+6)
|
|
|
|
|
|
#if ENABLE_FEATURE_DEVFS
|
|
# 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"
|
|
#if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
|
|
/* Yes, this sucks, but both SH (including sh64) and H8 have a SCI(F) for their
|
|
respective serial ports .. as such, we can't use the common device paths for
|
|
these. -- PFM */
|
|
# define SC_0 "/dev/ttsc/0"
|
|
# define SC_1 "/dev/ttsc/1"
|
|
# define SC_FORMAT "/dev/ttsc/%d"
|
|
#else
|
|
# define SC_0 "/dev/tts/0"
|
|
# define SC_1 "/dev/tts/1"
|
|
# define SC_FORMAT "/dev/tts/%d"
|
|
#endif
|
|
# define VC_FORMAT "/dev/vc/%d"
|
|
# define LOOP_FORMAT "/dev/loop/%d"
|
|
# define LOOP_NAMESIZE (sizeof("/dev/loop/") + sizeof(int)*3 + 1)
|
|
# define LOOP_NAME "/dev/loop/"
|
|
# define FB_0 "/dev/fb/0"
|
|
#else
|
|
# 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"
|
|
#if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
|
|
# define SC_0 "/dev/ttySC0"
|
|
# define SC_1 "/dev/ttySC1"
|
|
# define SC_FORMAT "/dev/ttySC%d"
|
|
#else
|
|
# define SC_0 "/dev/ttyS0"
|
|
# define SC_1 "/dev/ttyS1"
|
|
# define SC_FORMAT "/dev/ttyS%d"
|
|
#endif
|
|
# define VC_FORMAT "/dev/tty%d"
|
|
# define LOOP_FORMAT "/dev/loop%d"
|
|
# define LOOP_NAMESIZE (sizeof("/dev/loop") + sizeof(int)*3 + 1)
|
|
# define LOOP_NAME "/dev/loop"
|
|
# define FB_0 "/dev/fb0"
|
|
#endif
|
|
|
|
/* The following devices are the same on devfs and non-devfs systems. */
|
|
#define CURRENT_TTY "/dev/tty"
|
|
#define DEV_CONSOLE "/dev/console"
|
|
|
|
|
|
#ifndef RB_POWER_OFF
|
|
/* Stop system and switch power off if possible. */
|
|
#define RB_POWER_OFF 0x4321fedc
|
|
#endif
|
|
|
|
/* Make sure we call functions instead of macros. */
|
|
#undef isalnum
|
|
#undef isalpha
|
|
#undef isascii
|
|
#undef isblank
|
|
#undef iscntrl
|
|
#undef isgraph
|
|
#undef islower
|
|
#undef isprint
|
|
#undef ispunct
|
|
#undef isspace
|
|
#undef isupper
|
|
#undef isxdigit
|
|
|
|
/* This one is more efficient - we save ~400 bytes */
|
|
#undef isdigit
|
|
#define isdigit(a) ((unsigned)((a) - '0') <= 9)
|
|
|
|
|
|
#ifdef DMALLOC
|
|
#include <dmalloc.h>
|
|
#endif
|
|
|
|
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
|
|
|
|
#endif /* __LIBBUSYBOX_H__ */
|