emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

reorganize applet table. Eliminates pointers to names.

Browse Source 
Should be a big win for libbusybox. busybox wins too:

   text    data     bss     dec     hex filename
 776524     929    9100  786553   c0079 busybox_old
 775903     929    9100  785932   bfe0c busybox_unstripped
This commit is contained in:
Denis Vlasenko 2007-11-28 06:49:03 +00:00
parent 79c6904faf
commit 1aa7e477b1
13 changed files with 137 additions and 128 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Makefile
View File

@ -928,6 +928,8 @@ MRPROPER_FILES += .config .config.old include/asm .version .old_version \
include/autoconf.h \
include/bbconfigopts.h \
include/usage_compressed.h \
include/applet_tables.h \
applets/usage \
.kernelrelease Module.symvers tags TAGS cscope*
# clean - Delete most, but leave enough to build external modules

12
applets/Kbuild
View File

@ -8,7 +8,7 @@ obj-y :=
obj-y += applets.o
hostprogs-y:=
hostprogs-y += usage
hostprogs-y += usage applet_tables
always:= $(hostprogs-y)
@ -19,7 +19,15 @@ quiet_cmd_gen_usage_compressed = GEN include/usage_compressed.h
HOSTCFLAGS_usage.o = -I$(srctree)/include
applets/applets.o: include/usage_compressed.h
applets/applets.o: include/usage_compressed.h include/applet_tables.h
applets/usage: .config $(srctree)/applets/usage_compressed
include/usage_compressed.h: applets/usage $(srctree)/applets/usage_compressed
$(call cmd,gen_usage_compressed)
# Two-stage file creation, to avoid having target file still created
# in case applet_tables fails
include/applet_tables.h: applets/applet_tables
applets/applet_tables >include/applet_tables.h.tmp
mv include/applet_tables.h.tmp include/applet_tables.h

2
applets/applets.c
View File

@ -2,7 +2,7 @@
/*
* Stub for linking busybox binary against libbusybox.
*
* Copyright (C) 2007 Denis Vlasenko
* Copyright (C) 2007 Denys Vlasenko <vda.linux@googlemail.com>
*
* Licensed under GPLv2, see file License in this tarball for details.
*/

13
include/applets.h
View File

@ -59,12 +59,12 @@ s - suid type:
# define APPLET_NOFORK(name,main,l,s,name2) LINK l name
#else
const struct bb_applet applets[] = { /* name, main, location, need_suid */
# define APPLET(name,l,s) { #name, name##_main USE_FEATURE_INSTALLER(,l) USE_FEATURE_SUID(,s) },
# define APPLET_NOUSAGE(name,main,l,s) { #name, main##_main USE_FEATURE_INSTALLER(,l) USE_FEATURE_SUID(,s) },
# define APPLET_ODDNAME(name,main,l,s,name2) { #name, main##_main USE_FEATURE_INSTALLER(,l) USE_FEATURE_SUID(,s) },
# define APPLET_NOEXEC(name,main,l,s,name2) { #name, main##_main USE_FEATURE_INSTALLER(,l) USE_FEATURE_SUID(,s) USE_FEATURE_PREFER_APPLETS(,1) },
# define APPLET_NOFORK(name,main,l,s,name2) { #name, main##_main USE_FEATURE_INSTALLER(,l) USE_FEATURE_SUID(,s) USE_FEATURE_PREFER_APPLETS(,1 ,1) },
static struct bb_applet applets[] = { /* name, main, location, need_suid */
# define APPLET(name,l,s) { #name, #name, l, s },
# define APPLET_NOUSAGE(name,main,l,s) { #name, #main, l, s },
# define APPLET_ODDNAME(name,main,l,s,name2) { #name, #main, l, s },
# define APPLET_NOEXEC(name,main,l,s,name2) { #name, #main, l, s, 1 },
# define APPLET_NOFORK(name,main,l,s,name2) { #name, #main, l, s, 1, 1 },
#endif
#if ENABLE_INSTALL_NO_USR
@ -385,7 +385,6 @@ USE_GUNZIP(APPLET_ODDNAME(zcat, gunzip, _BB_DIR_BIN, _BB_SUID_NEVER, zcat))
USE_ZCIP(APPLET(zcip, _BB_DIR_SBIN, _BB_SUID_NEVER))
#if !defined(PROTOTYPES) && !defined(NAME_MAIN_CNAME) && !defined(MAKE_USAGE)
{ NULL }
};
#endif

46
include/busybox.h
View File

@ -9,8 +9,7 @@
#include "libbb.h"
#if ENABLE_FEATURE_INSTALLER
/* order matters: used as index into "install_dir[]" in busybox.c */
/* order matters: used as index into "install_dir[]" in appletlib.c */
typedef enum bb_install_loc_t {
_BB_DIR_ROOT = 0,
_BB_DIR_BIN,
@ -18,41 +17,42 @@ typedef enum bb_install_loc_t {
_BB_DIR_USR_BIN,
_BB_DIR_USR_SBIN
} bb_install_loc_t;
#endif
#if ENABLE_FEATURE_SUID
typedef enum bb_suid_t {
_BB_SUID_NEVER = 0,
_BB_SUID_MAYBE,
_BB_SUID_ALWAYS
} bb_suid_t;
/* Defined in appletlib.c (by including generated applet_tables.h) */
/* Keep in sync with applets/applet_tables.c! */
extern const char applet_names[];
extern int (*const applet_mains[])(int argc, char **argv);
#if ENABLE_FEATURE_INSTALLER || ENABLE_FEATURE_PREFER_APPLETS
extern const uint32_t applet_nameofs[];
#else
extern const uint16_t applet_nameofs[];
#endif
struct bb_applet {
const char *name;
int (*main) (int argc, char **argv);
#if ENABLE_FEATURE_INSTALLER
__extension__ enum bb_install_loc_t install_loc:8;
#endif
#if ENABLE_FEATURE_SUID
__extension__ enum bb_suid_t need_suid:8;
#define APPLET_NAME(i) (applet_names + (applet_nameofs[i] & 0x3fff))
#define APPLET_SUID(i) ((applet_nameofs[i] >> 14) & 0x3)
#else
#define APPLET_NAME(i) (applet_names + (applet_nameofs[i] & 0xffff))
#endif
#if ENABLE_FEATURE_INSTALLER
#define APPLET_INSTALL_LOC(i) ((applet_nameofs[i] >> 16) & 0x7)
#endif
#if ENABLE_FEATURE_PREFER_APPLETS
/* true if instead of fork(); exec("applet"); waitpid();
* one can do fork(); exit(applet_main(argc,argv)); waitpid(); */
unsigned char noexec;
/* Even nicer */
/* true if instead of fork(); exec("applet"); waitpid();
* one can simply call applet_main(argc,argv); */
unsigned char nofork;
#define APPLET_IS_NOFORK(i) (applet_nameofs[i] & (1 << 19))
#define APPLET_IS_NOEXEC(i) (applet_nameofs[i] & (1 << 20))
#endif
};
/* Defined in appletlib.c */
extern const struct bb_applet applets[];
extern const unsigned short NUM_APPLETS;
/* Length of these names has effect on size of libbusybox
* and "individual" binaries. Keep them short.
*/

11
include/libbb.h
View File

@ -550,7 +550,6 @@ void clear_username_cache(void);
enum { USERNAME_MAX_SIZE = 16 - sizeof(int) };
struct bb_applet;
int execable_file(const char *name);
char *find_execable(const char *filename);
int exists_execable(const char *filename);
@ -562,7 +561,7 @@ int exists_execable(const char *filename);
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)) ? CONFIG_BUSYBOX_EXEC_PATH : prog, \
execlp((find_applet_by_name(prog) >= 0) ? CONFIG_BUSYBOX_EXEC_PATH : prog, \
cmd, __VA_ARGS__)
#else
#define BB_EXECVP(prog,cmd) execvp(prog,cmd)
@ -600,8 +599,8 @@ struct nofork_save_area {
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(const struct bb_applet *a, char **argv);
int run_nofork_applet_prime(struct nofork_save_area *old, const struct bb_applet *a, char **argv);
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.
*
@ -786,10 +785,10 @@ const struct hwtype *get_hwntype(int type);
#ifndef BUILD_INDIVIDUAL
extern const struct bb_applet *find_applet_by_name(const char *name);
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_appletstruct_and_exit(const struct bb_applet *a, char **argv) ATTRIBUTE_NORETURN;
extern void run_applet_no_and_exit(int a, char **argv) ATTRIBUTE_NORETURN;
#endif
extern int match_fstype(const struct mntent *mt, const char *fstypes);

87
libbb/appletlib.c
View File

@ -33,13 +33,9 @@ static const char usage_messages[] ALIGN1 = ""
#define usage_messages 0
#endif /* SHOW_USAGE */
/* Define struct bb_applet applets[] */
#include "applets.h"
#if ENABLE_FEATURE_SH_STANDALONE
/* -1 because last entry is NULL */
const unsigned short NUM_APPLETS = ARRAY_SIZE(applets) - 1;
#endif
/* Include generated applet names, pointers to <apllet>_main, etc */
#include "applet_tables.h"
#if ENABLE_FEATURE_COMPRESS_USAGE
@ -84,16 +80,14 @@ void bb_show_usage(void)
const char *format_string;
const char *p;
const char *usage_string = p = unpack_usage_messages();
const struct bb_applet *ap = find_applet_by_name(applet_name);
int i;
int ap = find_applet_by_name(applet_name);
if (!ap) /* never happens, paranoia */
if (ap < 0) /* never happens, paranoia */
xfunc_die();
i = ap - applets;
while (i) {
while (ap) {
while (*p++) continue;
i--;
ap--;
}
fprintf(stderr, "%s multi-call binary\n", bb_banner);
@ -107,18 +101,22 @@ void bb_show_usage(void)
}
static int applet_name_compare(const void *name, const void *vapplet)
static int applet_name_compare(const void *name, const void *v)
{
const struct bb_applet *applet = vapplet;
return strcmp(name, applet->name);
int i = (const char *)v - applet_names;
return strcmp(name, APPLET_NAME(i));
}
const struct bb_applet *find_applet_by_name(const char *name)
int find_applet_by_name(const char *name)
{
const char *p;
/* Do a binary search to find the applet entry given the name. */
return bsearch(name, applets, ARRAY_SIZE(applets)-1, sizeof(applets[0]),
applet_name_compare);
/* NB: any char pointer will work as well, not necessarily applet_names */
p = bsearch(name, applet_names, ARRAY_SIZE(applet_mains), 1, applet_name_compare);
if (!p)
return -1;
return p - applet_names;
}
@ -166,7 +164,7 @@ USE_FEATURE_SUID(static uid_t ruid;) /* real uid */
/* applets[] is const, so we have to define this "override" structure */
static struct BB_suid_config {
const struct bb_applet *m_applet;
int m_applet;
uid_t m_uid;
gid_t m_gid;
mode_t m_mode;
@ -232,7 +230,7 @@ static void parse_config_file(void)
{
struct BB_suid_config *sct_head;
struct BB_suid_config *sct;
const struct bb_applet *applet;
int applet_no;
FILE *f;
const char *errmsg;
char *s;
@ -343,14 +341,14 @@ static void parse_config_file(void)
* applet is currently built in and ignore it otherwise.
* Note: this can hide config file bugs which only pop
* up when the busybox configuration is changed. */
applet = find_applet_by_name(s);
if (applet) {
applet_no = find_applet_by_name(s);
if (applet_no >= 0) {
/* Note: We currently don't check for duplicates!
* The last config line for each applet will be the
* one used since we insert at the head of the list.
* I suppose this could be considered a feature. */
sct = xmalloc(sizeof(struct BB_suid_config));
sct->m_applet = applet;
sct->m_applet = applet_no;
sct->m_mode = 0;
sct->m_next = sct_head;
sct_head = sct;
@ -441,7 +439,7 @@ static inline void parse_config_file(void)
#if ENABLE_FEATURE_SUID
static void check_suid(const struct bb_applet *applet)
static void check_suid(int applet_no)
{
gid_t rgid; /* real gid */
@ -456,7 +454,7 @@ static void check_suid(const struct bb_applet *applet)
mode_t m;
for (sct = suid_config; sct; sct = sct->m_next) {
if (sct->m_applet == applet)
if (sct->m_applet == applet_no)
goto found;
}
goto check_need_suid;
@ -504,12 +502,12 @@ static void check_suid(const struct bb_applet *applet)
#endif
check_need_suid:
#endif
if (applet->need_suid == _BB_SUID_ALWAYS) {
if (APPLET_SUID(applet_no) == _BB_SUID_ALWAYS) {
/* Real uid is not 0. If euid isn't 0 too, suid bit
* is most probably not set on our executable */
if (geteuid())
bb_error_msg_and_die("must be suid to work properly");
} else if (applet->need_suid == _BB_SUID_NEVER) {
} else if (APPLET_SUID(applet_no) == _BB_SUID_NEVER) {
xsetgid(rgid); /* drop all privileges */
xsetuid(ruid);
}
@ -536,18 +534,19 @@ static void install_links(const char *busybox, int use_symbolic_links)
usr_sbin
};
int (*lf)(const char *, const char *) = link;
int (*lf)(const char *, const char *);
char *fpc;
int i;
int rc;
lf = link;
if (use_symbolic_links)
lf = symlink;
for (i = 0; applets[i].name != NULL; i++) {
for (i = 0; i < ARRAY_SIZE(applet_mains); i++) {
fpc = concat_path_file(
install_dir[applets[i].install_loc],
applets[i].name);
install_dir[APPLET_INSTALL_LOC(i)],
APPLET_NAME(i));
rc = lf(busybox, fpc);
if (rc != 0 && errno != EEXIST) {
bb_simple_perror_msg(fpc);
@ -564,7 +563,7 @@ static int busybox_main(char **argv)
{
if (!argv[1]) {
/* Called without arguments */
const struct bb_applet *a;
const char *a;
int col, output_width;
help:
output_width = 80;
@ -588,14 +587,14 @@ static int busybox_main(char **argv)
"\twill act like whatever it was invoked as!\n"
"\nCurrently defined functions:\n");
col = 0;
a = applets;
while (a->name) {
a = applet_names;
while (*a) {
if (col > output_width) {
puts(",");
col = 0;
}
col += printf("%s%s", (col ? ", " : "\t"), a->name);
a++;
col += printf("%s%s", (col ? ", " : "\t"), a);
a += strlen(a) + 1;
}
puts("\n");
return 0;
@ -629,7 +628,7 @@ static int busybox_main(char **argv)
bb_error_msg_and_die("applet not found");
}
void run_appletstruct_and_exit(const struct bb_applet *applet, char **argv)
void run_applet_no_and_exit(int applet_no, char **argv)
{
int argc = 1;
@ -640,19 +639,19 @@ void run_appletstruct_and_exit(const struct bb_applet *applet, char **argv)
optind = 1;
xfunc_error_retval = EXIT_FAILURE;
applet_name = applet->name;
applet_name = APPLET_NAME(applet_no);
if (argc == 2 && !strcmp(argv[1], "--help"))
bb_show_usage();
if (ENABLE_FEATURE_SUID)
check_suid(applet);
exit(applet->main(argc, argv));
check_suid(applet_no);
exit(applet_mains[applet_no](argc, argv));
}
void run_applet_and_exit(const char *name, char **argv)
{
const struct bb_applet *applet = find_applet_by_name(name);
if (applet)
run_appletstruct_and_exit(applet, argv);
int applet = find_applet_by_name(name);
if (applet >= 0)
run_applet_no_and_exit(applet, argv);
if (!strncmp(name, "busybox", 7))
exit(busybox_main(argv));
}

2
libbb/execable.c
View File

@ -65,7 +65,7 @@ int exists_execable(const char *filename)
*/
int bb_execvp(const char *file, char *const argv[])
{
return execvp(find_applet_by_name(file) ? bb_busybox_exec_path : file,
return execvp(find_applet_by_name(file) >= 0 ? bb_busybox_exec_path : file,
argv);
}
#endif

22
libbb/vfork_daemon_rexec.c
View File

@ -16,7 +16,7 @@
*/
#include <paths.h>
#include "busybox.h" /* for struct bb_applet */
#include "busybox.h" /* uses applet tables */
/* This does a fork/exec in one call, using vfork(). Returns PID of new child,
* -1 for failure. Runs argv[0], searching path if that has no / in it. */
@ -120,11 +120,11 @@ void restore_nofork_data(struct nofork_save_area *save)
die_sleep = save->die_sleep;
}
int run_nofork_applet_prime(struct nofork_save_area *old, const struct bb_applet *a, char **argv)
int run_nofork_applet_prime(struct nofork_save_area *old, int applet_no, char **argv)
{
int rc, argc;
applet_name = a->name;
applet_name = APPLET_NAME(applet_no);
xfunc_error_retval = EXIT_FAILURE;
/*option_mask32 = 0; - not needed */
/* special flag for xfunc_die(). If xfunc will "die"
@ -143,7 +143,7 @@ int run_nofork_applet_prime(struct nofork_save_area *old, const struct bb_applet
char *tmp_argv[argc+1];
memcpy(tmp_argv, argv, (argc+1) * sizeof(tmp_argv[0]));
/* Finally we can call NOFORK applet's main() */
rc = a->main(argc, tmp_argv);
rc = applet_mains[applet_no](argc, tmp_argv);
} else { /* xfunc died in NOFORK applet */
/* in case they meant to return 0... */
if (rc == -2222)
@ -155,13 +155,13 @@ int run_nofork_applet_prime(struct nofork_save_area *old, const struct bb_applet
return rc;
}
int run_nofork_applet(const struct bb_applet *a, char **argv)
int run_nofork_applet(int applet_no, char **argv)
{
struct nofork_save_area old;
/* Saving globals */
save_nofork_data(&old);
return run_nofork_applet_prime(&old, a, argv);
return run_nofork_applet_prime(&old, applet_no, argv);
}
#endif /* FEATURE_PREFER_APPLETS */
@ -169,15 +169,15 @@ int spawn_and_wait(char **argv)
{
int rc;
#if ENABLE_FEATURE_PREFER_APPLETS
const struct bb_applet *a = find_applet_by_name(argv[0]);
int a = find_applet_by_name(argv[0]);
if (a && (a->nofork
if (a >= 0 && (APPLET_IS_NOFORK(a)
#if BB_MMU
|| a->noexec /* NOEXEC trick needs fork() */
|| APPLET_IS_NOEXEC(a) /* NOEXEC trick needs fork() */
#endif
)) {
#if BB_MMU
if (a->nofork)
if (APPLET_IS_NOFORK(a))
#endif
{
return run_nofork_applet(a, argv);
@ -190,7 +190,7 @@ int spawn_and_wait(char **argv)
return wait4pid(rc);
/* child */
xfunc_error_retval = EXIT_FAILURE;
run_appletstruct_and_exit(a, argv);
run_applet_no_and_exit(a, argv);
#endif
}
#endif /* FEATURE_PREFER_APPLETS */

30
shell/ash.c
View File

@ -53,7 +53,7 @@
#if DEBUG
#define _GNU_SOURCE
#endif
#include "busybox.h" /* for struct bb_applet */
#include "busybox.h" /* for applet_names */
#include <paths.h>
#include <setjmp.h>
#include <fnmatch.h>
@ -6479,12 +6479,10 @@ tryexec(char *cmd, char **argv, char **envp)
#if ENABLE_FEATURE_SH_STANDALONE
if (strchr(cmd, '/') == NULL) {
const struct bb_applet *a;
a = find_applet_by_name(cmd);
if (a) {
if (a->noexec)
run_appletstruct_and_exit(a, argv);
int a = find_applet_by_name(cmd);
if (a >= 0) {
if (APPLET_IS_NOEXEC(a))
run_applet_no_and_exit(a, argv);
/* re-exec ourselves with the new arguments */
execve(bb_busybox_exec_path, argv, envp);
/* If they called chroot or otherwise made the binary no longer
@ -6539,7 +6537,7 @@ shellexec(char **argv, const char *path, int idx)
envp = environment();
if (strchr(argv[0], '/')
#if ENABLE_FEATURE_SH_STANDALONE
|| find_applet_by_name(argv[0])
|| find_applet_by_name(argv[0]) >= 0
#endif
) {
tryexec(argv[0], argv, envp);
@ -11117,7 +11115,7 @@ find_command(char *name, struct cmdentry *entry, int act, const char *path)
}
#if ENABLE_FEATURE_SH_STANDALONE
if (find_applet_by_name(name)) {
if (find_applet_by_name(name) >= 0) {
entry->cmdtype = CMDNORMAL;
entry->u.index = -1;
return;
@ -11298,11 +11296,15 @@ helpcmd(int argc, char **argv)
}
}
#if ENABLE_FEATURE_SH_STANDALONE
for (i = 0; i < NUM_APPLETS; i++) {
col += out1fmt("%c%s", ((col == 0) ? '\t' : ' '), applets[i].name);
if (col > 60) {
out1fmt("\n");
col = 0;
{
const char *a = applet_names;
while (*a) {
col += out1fmt("%c%s", ((col == 0) ? '\t' : ' '), a);
if (col > 60) {
out1fmt("\n");
col = 0;
}
a += strlen(a) + 1;
}
}
#endif

16
shell/hush.c
View File

@ -83,7 +83,7 @@
extern char **environ; /* This is in <unistd.h>, but protected with __USE_GNU */
#include "busybox.h" /* for struct bb_applet */
#include "busybox.h" /* for APPLET_IS_NOFORK/NOEXEC */
#if !BB_MMU
@ -1464,12 +1464,12 @@ static void pseudo_exec_argv(char **argv)
/* Check if the command matches any busybox applets */
#if ENABLE_FEATURE_SH_STANDALONE
if (strchr(argv[0], '/') == NULL) {
const struct bb_applet *a = find_applet_by_name(argv[0]);
if (a) {
if (a->noexec) {
int a = find_applet_by_name(argv[0]);
if (a >= 0) {
if (APPLET_IS_NOEXEC(a)) {
debug_printf_exec("running applet '%s'\n", argv[0]);
// is it ok that run_appletstruct_and_exit() does exit(), not _exit()?
run_appletstruct_and_exit(a, argv);
// is it ok that run_applet_no_and_exit() does exit(), not _exit()?
run_applet_no_and_exit(a, argv);
}
/* re-exec ourselves with the new arguments */
debug_printf_exec("re-execing applet '%s'\n", argv[0]);
@ -1855,8 +1855,8 @@ static int run_pipe_real(struct pipe *pi)
}
#if ENABLE_FEATURE_SH_STANDALONE
{
const struct bb_applet *a = find_applet_by_name(argv[i]);
if (a && a->nofork) {
int a = find_applet_by_name(argv[i]);
if (a >= 0 && APPLET_IS_NOFORK(a)) {
setup_redirects(child, squirrel);
save_nofork_data(&nofork_save);
argv_expanded = argv + i;

6
shell/lash_unused.c
View File

@ -23,7 +23,7 @@
#include <getopt.h>
#include <glob.h>
#include "busybox.h" /* for struct bb_applet */
#include "libbb.h"
#define expand_t glob_t
@ -1253,8 +1253,8 @@ static int run_command(struct job *newjob, int inbg, int outpipe[2])
}
#if ENABLE_FEATURE_SH_STANDALONE
{
const struct bb_applet *a = find_applet_by_name(child->argv[i]);
if (a && a->nofork) {
int a = find_applet_by_name(child->argv[i]);
if (a >= 0 && APPLET_IS_NOFORK(a)) {
setup_redirects(child, squirrel);
rcode = run_nofork_applet(a, child->argv + i);
restore_redirects(squirrel);

16
shell/msh.c
View File

@ -45,9 +45,9 @@
# define NOT_LONE_DASH(s) ((s)[0] != '-' || (s)[1])
# define LONE_CHAR(s,c) ((s)[0] == (c) && !(s)[1])
# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
static char *find_applet_by_name(const char *applet)
static int find_applet_by_name(const char *applet)
{
return NULL;
return -1;
}
static char *utoa_to_buf(unsigned n, char *buf, unsigned buflen)
{
@ -83,7 +83,7 @@ static char *itoa(int n)
return local_buf;
}
#else
# include "busybox.h"
# include "busybox.h" /* for applet_names */
extern char **environ;
#endif
@ -3057,7 +3057,7 @@ static const char *rexecve(char *c, char **v, char **envp)
char *name = c;
if (ENABLE_FEATURE_SH_STANDALONE) {
if (find_applet_by_name(name)) {
if (find_applet_by_name(name) >= 0) {
/* We have to exec here since we vforked. Running
* run_applet_and_exit() won't work and bad things
* will happen. */
@ -3188,15 +3188,15 @@ static int dohelp(struct op *t)
}
#if ENABLE_FEATURE_SH_STANDALONE
{
const struct bb_applet *applet = applets;
const char *applet = applet_names;
while (applet->name) {
col += printf("%c%s", ((col == 0) ? '\t' : ' '), applet->name);
while (*applet) {
col += printf("%c%s", ((col == 0) ? '\t' : ' '), applet);
if (col > 60) {
bb_putchar('\n');
col = 0;
}
applet++;
applet += strlen(applet) + 1;
}
}
#endif