mirror of
https://github.com/sheumann/hush.git
synced 2024-08-17 00:29:03 +00:00
function old new delta unpack_Z_stream - 1229 +1229 open_zipped - 176 +176 unpack_bz2_stream_prime - 60 +60 tar_main 642 677 +35 find_main 406 418 +12 sv_main 1222 1233 +11 decode_format_string 829 837 +8 cmp_main 641 649 +8 popstring 134 140 +6 filter_accept_list_reassign 120 125 +5 parse_and_put_prompt 800 804 +4 passwd_main 1053 1049 -4 make_new_name_gunzip 119 114 -5 rpm_main 1688 1670 -18 prepare 302 283 -19 xmalloc_open_zipped_read_close 135 61 -74 uncompress 1229 - -1229 ------------------------------------------------------------------------------ (add/remove: 3/1 grow/shrink: 8/5 up/down: 1554/-1349) Total: 205 bytes
784 lines
20 KiB
C
784 lines
20 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Utility routines.
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*
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* Copyright (C) tons of folks. Tracking down who wrote what
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* isn't something I'm going to worry about... If you wrote something
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* here, please feel free to acknowledge your work.
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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 GPLv2 or later, see file License in this tarball for details.
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*/
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/* We are trying to not use printf, this benefits the case when selected
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* applets are really simple. Example:
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*
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* $ ./busybox
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* ...
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* Currently defined functions:
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* basename, false, true
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*
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* $ size busybox
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* text data bss dec hex filename
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* 4473 52 72 4597 11f5 busybox
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*
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* FEATURE_INSTALLER or FEATURE_SUID will still link printf routines in. :(
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*/
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#include <assert.h>
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#include "busybox.h"
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/* Declare <applet>_main() */
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#define PROTOTYPES
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#include "applets.h"
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#undef PROTOTYPES
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#if ENABLE_SHOW_USAGE && !ENABLE_FEATURE_COMPRESS_USAGE
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/* Define usage_messages[] */
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static const char usage_messages[] ALIGN1 = ""
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#define MAKE_USAGE
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#include "usage.h"
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#include "applets.h"
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;
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#undef MAKE_USAGE
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#else
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#define usage_messages 0
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#endif /* SHOW_USAGE */
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/* Include generated applet names, pointers to <applet>_main, etc */
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#include "applet_tables.h"
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/* ...and if applet_tables generator says we have only one applet... */
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#ifdef SINGLE_APPLET_MAIN
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#undef ENABLE_FEATURE_INDIVIDUAL
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#define ENABLE_FEATURE_INDIVIDUAL 1
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#undef USE_FEATURE_INDIVIDUAL
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#define USE_FEATURE_INDIVIDUAL(...) __VA_ARGS__
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#endif
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#if ENABLE_FEATURE_COMPRESS_USAGE
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#include "usage_compressed.h"
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#include "unarchive.h"
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static const char *unpack_usage_messages(void)
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{
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char *outbuf = NULL;
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bunzip_data *bd;
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int i;
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i = start_bunzip(&bd,
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/* src_fd: */ -1,
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//FIXME: can avoid storing these 2 bytes!
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/* inbuf: */ (void *)packed_usage + 2,
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/* len: */ sizeof(packed_usage));
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/* read_bunzip can longjmp to start_bunzip, and ultimately
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* end up here with i != 0 on read data errors! Not trivial */
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if (!i) {
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/* Cannot use xmalloc: will leak bd in NOFORK case! */
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outbuf = malloc_or_warn(SIZEOF_usage_messages);
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if (outbuf)
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read_bunzip(bd, outbuf, SIZEOF_usage_messages);
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}
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dealloc_bunzip(bd);
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return outbuf;
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}
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#define dealloc_usage_messages(s) free(s)
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#else
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#define unpack_usage_messages() usage_messages
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#define dealloc_usage_messages(s) ((void)(s))
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#endif /* FEATURE_COMPRESS_USAGE */
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static void full_write2_str(const char *str)
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{
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full_write(STDERR_FILENO, str, strlen(str));
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}
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void FAST_FUNC bb_show_usage(void)
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{
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if (ENABLE_SHOW_USAGE) {
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#ifdef SINGLE_APPLET_STR
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/* Imagine that this applet is "true". Dont suck in printf! */
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const char *p;
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const char *usage_string = p = unpack_usage_messages();
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if (*p == '\b') {
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full_write2_str("\nNo help available.\n\n");
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} else {
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full_write2_str("\nUsage: "SINGLE_APPLET_STR" ");
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full_write2_str(p);
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full_write2_str("\n\n");
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}
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dealloc_usage_messages((char*)usage_string);
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#else
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const char *p;
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const char *usage_string = p = unpack_usage_messages();
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int ap = find_applet_by_name(applet_name);
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if (ap < 0) /* never happens, paranoia */
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xfunc_die();
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while (ap) {
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while (*p++) continue;
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ap--;
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}
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full_write2_str(bb_banner);
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full_write2_str(" multi-call binary\n");
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if (*p == '\b')
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full_write2_str("\nNo help available.\n\n");
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else {
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full_write2_str("\nUsage: ");
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full_write2_str(applet_name);
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full_write2_str(" ");
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full_write2_str(p);
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full_write2_str("\n\n");
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}
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dealloc_usage_messages((char*)usage_string);
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#endif
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}
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xfunc_die();
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}
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#if NUM_APPLETS > 8
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/* NB: any char pointer will work as well, not necessarily applet_names */
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static int applet_name_compare(const void *name, const void *v)
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{
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int i = (const char *)v - applet_names;
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return strcmp(name, APPLET_NAME(i));
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}
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#endif
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int FAST_FUNC find_applet_by_name(const char *name)
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{
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#if NUM_APPLETS > 8
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/* Do a binary search to find the applet entry given the name. */
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const char *p;
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p = bsearch(name, applet_names, ARRAY_SIZE(applet_main), 1, applet_name_compare);
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if (!p)
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return -1;
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return p - applet_names;
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#else
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/* A version which does not pull in bsearch */
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int i = 0;
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const char *p = applet_names;
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while (i < NUM_APPLETS) {
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if (strcmp(name, p) == 0)
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return i;
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p += strlen(p) + 1;
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i++;
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}
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return -1;
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#endif
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}
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void lbb_prepare(const char *applet
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USE_FEATURE_INDIVIDUAL(, char **argv))
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MAIN_EXTERNALLY_VISIBLE;
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void lbb_prepare(const char *applet
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USE_FEATURE_INDIVIDUAL(, char **argv))
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{
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#ifdef __GLIBC__
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(*(int **)&bb_errno) = __errno_location();
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barrier();
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#endif
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applet_name = applet;
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/* Set locale for everybody except 'init' */
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if (ENABLE_LOCALE_SUPPORT && getpid() != 1)
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setlocale(LC_ALL, "");
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#if ENABLE_FEATURE_INDIVIDUAL
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/* Redundant for busybox (run_applet_and_exit covers that case)
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* but needed for "individual applet" mode */
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if (argv[1] && !argv[2] && strcmp(argv[1], "--help") == 0) {
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/* Special case. POSIX says "test --help"
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* should be no different from e.g. "test --foo". */
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if (!ENABLE_TEST || strcmp(applet_name, "test") != 0)
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bb_show_usage();
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}
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#endif
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}
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/* The code below can well be in applets/applets.c, as it is used only
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* for busybox binary, not "individual" binaries.
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* However, keeping it here and linking it into libbusybox.so
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* (together with remaining tiny applets/applets.o)
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* makes it possible to avoid --whole-archive at link time.
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* This makes (shared busybox) + libbusybox smaller.
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* (--gc-sections would be even better....)
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*/
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const char *applet_name;
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#if !BB_MMU
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bool re_execed;
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#endif
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/* If not built as a single-applet executable... */
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#if !defined(SINGLE_APPLET_MAIN)
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USE_FEATURE_SUID(static uid_t ruid;) /* real uid */
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#if ENABLE_FEATURE_SUID_CONFIG
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/* applets[] is const, so we have to define this "override" structure */
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static struct BB_suid_config {
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int m_applet;
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uid_t m_uid;
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gid_t m_gid;
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mode_t m_mode;
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struct BB_suid_config *m_next;
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} *suid_config;
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static bool suid_cfg_readable;
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/* check if u is member of group g */
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static int ingroup(uid_t u, gid_t g)
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{
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struct group *grp = getgrgid(g);
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if (grp) {
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char **mem;
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for (mem = grp->gr_mem; *mem; mem++) {
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struct passwd *pwd = getpwnam(*mem);
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if (pwd && (pwd->pw_uid == u))
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return 1;
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}
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}
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return 0;
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}
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/* This should probably be a libbb routine. In that case,
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* I'd probably rename it to something like bb_trimmed_slice.
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*/
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static char *get_trimmed_slice(char *s, char *e)
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{
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/* First, consider the value at e to be nul and back up until we
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* reach a non-space char. Set the char after that (possibly at
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* the original e) to nul. */
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while (e-- > s) {
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if (!isspace(*e)) {
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break;
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}
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}
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e[1] = '\0';
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/* Next, advance past all leading space and return a ptr to the
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* first non-space char; possibly the terminating nul. */
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return skip_whitespace(s);
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}
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/* Don't depend on the tools to combine strings. */
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static const char config_file[] ALIGN1 = "/etc/busybox.conf";
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/* We don't supply a value for the nul, so an index adjustment is
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* necessary below. Also, we use unsigned short here to save some
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* space even though these are really mode_t values. */
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static const unsigned short mode_mask[] ALIGN2 = {
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/* SST sst xxx --- */
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S_ISUID, S_ISUID|S_IXUSR, S_IXUSR, 0, /* user */
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S_ISGID, S_ISGID|S_IXGRP, S_IXGRP, 0, /* group */
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0, S_IXOTH, S_IXOTH, 0 /* other */
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};
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#define parse_error(x) do { errmsg = x; goto pe_label; } while (0)
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static void parse_config_file(void)
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{
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struct BB_suid_config *sct_head;
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struct BB_suid_config *sct;
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int applet_no;
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FILE *f;
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const char *errmsg;
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char *s;
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char *e;
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int i;
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unsigned lc;
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smallint section;
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char buffer[256];
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struct stat st;
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assert(!suid_config); /* Should be set to NULL by bss init. */
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ruid = getuid();
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if (ruid == 0) /* run by root - don't need to even read config file */
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return;
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if ((stat(config_file, &st) != 0) /* No config file? */
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|| !S_ISREG(st.st_mode) /* Not a regular file? */
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|| (st.st_uid != 0) /* Not owned by root? */
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|| (st.st_mode & (S_IWGRP | S_IWOTH)) /* Writable by non-root? */
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|| !(f = fopen_for_read(config_file)) /* Cannot open? */
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) {
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return;
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}
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suid_cfg_readable = 1;
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sct_head = NULL;
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section = lc = 0;
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while (1) {
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s = buffer;
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if (!fgets(s, sizeof(buffer), f)) { /* Are we done? */
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// why?
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if (ferror(f)) { /* Make sure it wasn't a read error. */
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parse_error("reading");
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}
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fclose(f);
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suid_config = sct_head; /* Success, so set the pointer. */
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return;
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}
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lc++; /* Got a (partial) line. */
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/* If a line is too long for our buffer, we consider it an error.
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* The following test does mistreat one corner case though.
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* If the final line of the file does not end with a newline and
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* yet exactly fills the buffer, it will be treated as too long
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* even though there isn't really a problem. But it isn't really
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* worth adding code to deal with such an unlikely situation, and
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* we do err on the side of caution. Besides, the line would be
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* too long if it did end with a newline. */
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if (!strchr(s, '\n') && !feof(f)) {
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parse_error("line too long");
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}
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/* Trim leading and trailing whitespace, ignoring comments, and
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* check if the resulting string is empty. */
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s = get_trimmed_slice(s, strchrnul(s, '#'));
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if (!*s) {
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continue;
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}
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/* Check for a section header. */
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if (*s == '[') {
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/* Unlike the old code, we ignore leading and trailing
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* whitespace for the section name. We also require that
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* there are no stray characters after the closing bracket. */
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e = strchr(s, ']');
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if (!e /* Missing right bracket? */
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|| e[1] /* Trailing characters? */
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|| !*(s = get_trimmed_slice(s+1, e)) /* Missing name? */
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) {
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parse_error("section header");
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}
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/* Right now we only have one section so just check it.
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* If more sections are added in the future, please don't
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* resort to cascading ifs with multiple strcasecmp calls.
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* That kind of bloated code is all too common. A loop
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* and a string table would be a better choice unless the
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* number of sections is very small. */
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if (strcasecmp(s, "SUID") == 0) {
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section = 1;
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continue;
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}
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section = -1; /* Unknown section so set to skip. */
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continue;
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}
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/* Process sections. */
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if (section == 1) { /* SUID */
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/* Since we trimmed leading and trailing space above, we're
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* now looking for strings of the form
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* <key>[::space::]*=[::space::]*<value>
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* where both key and value could contain inner whitespace. */
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/* First get the key (an applet name in our case). */
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e = strchr(s, '=');
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if (e) {
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s = get_trimmed_slice(s, e);
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}
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if (!e || !*s) { /* Missing '=' or empty key. */
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parse_error("keyword");
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}
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/* Ok, we have an applet name. Process the rhs if this
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* applet is currently built in and ignore it otherwise.
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* Note: this can hide config file bugs which only pop
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* up when the busybox configuration is changed. */
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applet_no = find_applet_by_name(s);
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if (applet_no >= 0) {
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/* Note: We currently don't check for duplicates!
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* The last config line for each applet will be the
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* one used since we insert at the head of the list.
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* I suppose this could be considered a feature. */
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sct = xmalloc(sizeof(struct BB_suid_config));
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sct->m_applet = applet_no;
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sct->m_mode = 0;
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sct->m_next = sct_head;
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sct_head = sct;
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/* Get the specified mode. */
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e = skip_whitespace(e+1);
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for (i = 0; i < 3; i++) {
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/* There are 4 chars + 1 nul for each of user/group/other. */
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static const char mode_chars[] ALIGN1 = "Ssx-\0" "Ssx-\0" "Ttx-";
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const char *q;
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q = strchrnul(mode_chars + 5*i, *e++);
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if (!*q) {
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parse_error("mode");
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}
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/* Adjust by -i to account for nul. */
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sct->m_mode |= mode_mask[(q - mode_chars) - i];
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}
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/* Now get the the user/group info. */
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s = skip_whitespace(e);
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/* Note: we require whitespace between the mode and the
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* user/group info. */
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if ((s == e) || !(e = strchr(s, '.'))) {
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parse_error("<uid>.<gid>");
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}
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*e++ = '\0';
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/* We can't use get_ug_id here since it would exit()
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* if a uid or gid was not found. Oh well... */
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sct->m_uid = bb_strtoul(s, NULL, 10);
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if (errno) {
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struct passwd *pwd = getpwnam(s);
|
|
if (!pwd) {
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parse_error("user");
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}
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sct->m_uid = pwd->pw_uid;
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}
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sct->m_gid = bb_strtoul(e, NULL, 10);
|
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if (errno) {
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struct group *grp;
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grp = getgrnam(e);
|
|
if (!grp) {
|
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parse_error("group");
|
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}
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sct->m_gid = grp->gr_gid;
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}
|
|
}
|
|
continue;
|
|
}
|
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|
|
/* Unknown sections are ignored. */
|
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|
|
/* Encountering configuration lines prior to seeing a
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* section header is treated as an error. This is how
|
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* the old code worked, but it may not be desirable.
|
|
* We may want to simply ignore such lines in case they
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|
* are used in some future version of busybox. */
|
|
if (!section) {
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parse_error("keyword outside section");
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|
}
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|
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} /* while (1) */
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pe_label:
|
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fprintf(stderr, "Parse error in %s, line %d: %s\n",
|
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config_file, lc, errmsg);
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|
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fclose(f);
|
|
/* Release any allocated memory before returning. */
|
|
while (sct_head) {
|
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sct = sct_head->m_next;
|
|
free(sct_head);
|
|
sct_head = sct;
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}
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|
}
|
|
#else
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|
static inline void parse_config_file(void)
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{
|
|
USE_FEATURE_SUID(ruid = getuid();)
|
|
}
|
|
#endif /* FEATURE_SUID_CONFIG */
|
|
|
|
|
|
#if ENABLE_FEATURE_SUID
|
|
static void check_suid(int applet_no)
|
|
{
|
|
gid_t rgid; /* real gid */
|
|
|
|
if (ruid == 0) /* set by parse_config_file() */
|
|
return; /* run by root - no need to check more */
|
|
rgid = getgid();
|
|
|
|
#if ENABLE_FEATURE_SUID_CONFIG
|
|
if (suid_cfg_readable) {
|
|
uid_t uid;
|
|
struct BB_suid_config *sct;
|
|
mode_t m;
|
|
|
|
for (sct = suid_config; sct; sct = sct->m_next) {
|
|
if (sct->m_applet == applet_no)
|
|
goto found;
|
|
}
|
|
goto check_need_suid;
|
|
found:
|
|
m = sct->m_mode;
|
|
if (sct->m_uid == ruid)
|
|
/* same uid */
|
|
m >>= 6;
|
|
else if ((sct->m_gid == rgid) || ingroup(ruid, sct->m_gid))
|
|
/* same group / in group */
|
|
m >>= 3;
|
|
|
|
if (!(m & S_IXOTH)) /* is x bit not set ? */
|
|
bb_error_msg_and_die("you have no permission to run this applet!");
|
|
|
|
/* _both_ sgid and group_exec have to be set for setegid */
|
|
if ((sct->m_mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))
|
|
rgid = sct->m_gid;
|
|
/* else (no setegid) we will set egid = rgid */
|
|
|
|
/* We set effective AND saved ids. If saved-id is not set
|
|
* like we do below, seteiud(0) can still later succeed! */
|
|
if (setresgid(-1, rgid, rgid))
|
|
bb_perror_msg_and_die("setresgid");
|
|
|
|
/* do we have to set effective uid? */
|
|
uid = ruid;
|
|
if (sct->m_mode & S_ISUID)
|
|
uid = sct->m_uid;
|
|
/* else (no seteuid) we will set euid = ruid */
|
|
|
|
if (setresuid(-1, uid, uid))
|
|
bb_perror_msg_and_die("setresuid");
|
|
return;
|
|
}
|
|
#if !ENABLE_FEATURE_SUID_CONFIG_QUIET
|
|
{
|
|
static bool onetime = 0;
|
|
|
|
if (!onetime) {
|
|
onetime = 1;
|
|
fprintf(stderr, "Using fallback suid method\n");
|
|
}
|
|
}
|
|
#endif
|
|
check_need_suid:
|
|
#endif
|
|
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_SUID(applet_no) == _BB_SUID_NEVER) {
|
|
xsetgid(rgid); /* drop all privileges */
|
|
xsetuid(ruid);
|
|
}
|
|
}
|
|
#else
|
|
#define check_suid(x) ((void)0)
|
|
#endif /* FEATURE_SUID */
|
|
|
|
|
|
#if ENABLE_FEATURE_INSTALLER
|
|
/* create (sym)links for each applet */
|
|
static void install_links(const char *busybox, int use_symbolic_links)
|
|
{
|
|
/* directory table
|
|
* this should be consistent w/ the enum,
|
|
* busybox.h::bb_install_loc_t, or else... */
|
|
static const char usr_bin [] ALIGN1 = "/usr/bin";
|
|
static const char usr_sbin[] ALIGN1 = "/usr/sbin";
|
|
static const char *const install_dir[] = {
|
|
&usr_bin [8], /* "", equivalent to "/" for concat_path_file() */
|
|
&usr_bin [4], /* "/bin" */
|
|
&usr_sbin[4], /* "/sbin" */
|
|
usr_bin,
|
|
usr_sbin
|
|
};
|
|
|
|
int (*lf)(const char *, const char *);
|
|
char *fpc;
|
|
unsigned i;
|
|
int rc;
|
|
|
|
lf = link;
|
|
if (use_symbolic_links)
|
|
lf = symlink;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(applet_main); i++) {
|
|
fpc = concat_path_file(
|
|
install_dir[APPLET_INSTALL_LOC(i)],
|
|
APPLET_NAME(i));
|
|
// debug: bb_error_msg("%slinking %s to busybox",
|
|
// use_symbolic_links ? "sym" : "", fpc);
|
|
rc = lf(busybox, fpc);
|
|
if (rc != 0 && errno != EEXIST) {
|
|
bb_simple_perror_msg(fpc);
|
|
}
|
|
free(fpc);
|
|
}
|
|
}
|
|
#else
|
|
#define install_links(x,y) ((void)0)
|
|
#endif /* FEATURE_INSTALLER */
|
|
|
|
/* If we were called as "busybox..." */
|
|
static int busybox_main(char **argv)
|
|
{
|
|
if (!argv[1]) {
|
|
/* Called without arguments */
|
|
const char *a;
|
|
unsigned col, output_width;
|
|
help:
|
|
output_width = 80;
|
|
if (ENABLE_FEATURE_AUTOWIDTH) {
|
|
/* Obtain the terminal width */
|
|
get_terminal_width_height(0, &output_width, NULL);
|
|
}
|
|
/* leading tab and room to wrap */
|
|
output_width -= MAX_APPLET_NAME_LEN + 8;
|
|
|
|
dup2(1, 2);
|
|
full_write2_str(bb_banner); /* reuse const string... */
|
|
full_write2_str(" multi-call binary\n"
|
|
"Copyright (C) 1998-2008 Erik Andersen, Rob Landley, Denys Vlasenko\n"
|
|
"and others. Licensed under GPLv2.\n"
|
|
"See source distribution for full notice.\n"
|
|
"\n"
|
|
"Usage: busybox [function] [arguments]...\n"
|
|
" or: function [arguments]...\n"
|
|
"\n"
|
|
"\tBusyBox is a multi-call binary that combines many common Unix\n"
|
|
"\tutilities into a single executable. Most people will create a\n"
|
|
"\tlink to busybox for each function they wish to use and BusyBox\n"
|
|
"\twill act like whatever it was invoked as!\n"
|
|
"\n"
|
|
"Currently defined functions:\n");
|
|
col = 0;
|
|
a = applet_names;
|
|
while (*a) {
|
|
int len;
|
|
if (col > output_width) {
|
|
full_write2_str(",\n");
|
|
col = 0;
|
|
}
|
|
full_write2_str(col ? ", " : "\t");
|
|
full_write2_str(a);
|
|
len = strlen(a);
|
|
col += len + 2;
|
|
a += len + 1;
|
|
}
|
|
full_write2_str("\n\n");
|
|
return 0;
|
|
}
|
|
|
|
if (ENABLE_FEATURE_INSTALLER && strcmp(argv[1], "--install") == 0) {
|
|
const char *busybox;
|
|
busybox = xmalloc_readlink(bb_busybox_exec_path);
|
|
if (!busybox)
|
|
busybox = bb_busybox_exec_path;
|
|
/* -s makes symlinks */
|
|
install_links(busybox, argv[2] && strcmp(argv[2], "-s") == 0);
|
|
return 0;
|
|
}
|
|
|
|
if (strcmp(argv[1], "--help") == 0) {
|
|
/* "busybox --help [<applet>]" */
|
|
if (!argv[2])
|
|
goto help;
|
|
/* convert to "<applet> --help" */
|
|
argv[0] = argv[2];
|
|
argv[2] = NULL;
|
|
} else {
|
|
/* "busybox <applet> arg1 arg2 ..." */
|
|
argv++;
|
|
}
|
|
/* We support "busybox /a/path/to/applet args..." too. Allows for
|
|
* "#!/bin/busybox"-style wrappers */
|
|
applet_name = bb_get_last_path_component_nostrip(argv[0]);
|
|
run_applet_and_exit(applet_name, argv);
|
|
|
|
/*bb_error_msg_and_die("applet not found"); - sucks in printf */
|
|
full_write2_str(applet_name);
|
|
full_write2_str(": applet not found\n");
|
|
xfunc_die();
|
|
}
|
|
|
|
void FAST_FUNC run_applet_no_and_exit(int applet_no, char **argv)
|
|
{
|
|
int argc = 1;
|
|
|
|
while (argv[argc])
|
|
argc++;
|
|
|
|
/* Reinit some shared global data */
|
|
xfunc_error_retval = EXIT_FAILURE;
|
|
|
|
applet_name = APPLET_NAME(applet_no);
|
|
if (argc == 2 && strcmp(argv[1], "--help") == 0) {
|
|
/* Special case. POSIX says "test --help"
|
|
* should be no different from e.g. "test --foo". */
|
|
//TODO: just compare applet_no with APPLET_NO_test
|
|
if (!ENABLE_TEST || strcmp(applet_name, "test") != 0)
|
|
bb_show_usage();
|
|
}
|
|
if (ENABLE_FEATURE_SUID)
|
|
check_suid(applet_no);
|
|
exit(applet_main[applet_no](argc, argv));
|
|
}
|
|
|
|
void FAST_FUNC run_applet_and_exit(const char *name, char **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));
|
|
}
|
|
|
|
#endif /* !defined(SINGLE_APPLET_MAIN) */
|
|
|
|
|
|
|
|
#if ENABLE_BUILD_LIBBUSYBOX
|
|
int lbb_main(char **argv)
|
|
#else
|
|
int main(int argc UNUSED_PARAM, char **argv)
|
|
#endif
|
|
{
|
|
#if defined(SINGLE_APPLET_MAIN)
|
|
/* Only one applet is selected by the user! */
|
|
/* applet_names in this case is just "applet\0\0" */
|
|
lbb_prepare(applet_names USE_FEATURE_INDIVIDUAL(, argv));
|
|
return SINGLE_APPLET_MAIN(argc, argv);
|
|
#else
|
|
lbb_prepare("busybox" USE_FEATURE_INDIVIDUAL(, argv));
|
|
|
|
#if !BB_MMU
|
|
/* NOMMU re-exec trick sets high-order bit in first byte of name */
|
|
if (argv[0][0] & 0x80) {
|
|
re_execed = 1;
|
|
argv[0][0] &= 0x7f;
|
|
}
|
|
#endif
|
|
applet_name = argv[0];
|
|
if (applet_name[0] == '-')
|
|
applet_name++;
|
|
applet_name = bb_basename(applet_name);
|
|
|
|
parse_config_file(); /* ...maybe, if FEATURE_SUID_CONFIG */
|
|
|
|
run_applet_and_exit(applet_name, argv);
|
|
|
|
/*bb_error_msg_and_die("applet not found"); - sucks in printf */
|
|
full_write2_str(applet_name);
|
|
full_write2_str(": applet not found\n");
|
|
xfunc_die();
|
|
#endif
|
|
}
|