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busybox --list option. +140 bytes. Rob wanted it.

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-04-20 21:02:57 -04:00
parent f2c16edf99
commit 5a7c72015c
1 changed files with 44 additions and 25 deletions
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69
libbb/appletlib.c
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@ -595,6 +595,17 @@ static void check_suid(int applet_no)
#if ENABLE_FEATURE_INSTALLER
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], /* "/" */
&usr_bin [4], /* "/bin/" */
&usr_sbin[4], /* "/sbin/" */
usr_bin,
usr_sbin
};
/* create (sym)links for each applet */
static void install_links(const char *busybox, int use_symbolic_links,
char *custom_install_dir)
@ -602,16 +613,6 @@ 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;
@ -635,8 +636,8 @@ static void install_links(const char *busybox, int use_symbolic_links,
}
}
#else
#define install_links(x,y,z) ((void)0)
#endif /* FEATURE_INSTALLER */
# define install_links(x,y,z) ((void)0)
#endif
/* If we were called as "busybox..." */
static int busybox_main(char **argv)
@ -657,19 +658,20 @@ static int busybox_main(char **argv)
full_write2_str(bb_banner); /* reuse const string */
full_write2_str(" multi-call binary.\n"); /* reuse */
full_write2_str(
"Copyright (C) 1998-2009 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");
"Copyright (C) 1998-2009 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;
/* prevent last comma to be in the very last pos */
@ -694,6 +696,23 @@ static int busybox_main(char **argv)
return 0;
}
if (strncmp(argv[1], "--list", 6) == 0) {
unsigned i = 0;
const char *a = applet_names;
dup2(1, 2);
while (*a) {
#if ENABLE_FEATURE_INSTALLER
if (argv[1][6]) /* --list-path? */
full_write2_str(install_dir[APPLET_INSTALL_LOC(i)] + 1);
#endif
full_write2_str(a);
full_write2_str("\n");
i++;
a += strlen(a) + 1;
}
return 0;
}
if (ENABLE_FEATURE_INSTALLER && strcmp(argv[1], "--install") == 0) {
int use_symbolic_links;
const char *busybox;