diff options
Diffstat (limited to 'busybox.c')
| -rw-r--r-- | busybox.c | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/busybox.c b/busybox.c deleted file mode 100644 index 33efb5d..0000000 --- a/busybox.c +++ /dev/null @@ -1,181 +0,0 @@ -/* vi: set sw=4 ts=4: */ -#include <stdio.h> -#include <string.h> -#include <unistd.h> -#include <errno.h> -#include <stdlib.h> -#include "busybox.h" -#ifdef BB_LOCALE_SUPPORT -#include <locale.h> -#endif - -int been_there_done_that = 0; /* Also used in applets.c */ -const char *applet_name; - -#ifdef BB_FEATURE_INSTALLER -/* - * directory table - * this should be consistent w/ the enum, busybox.h::Location, - * or else... - */ -static char* install_dir[] = { - "/", - "/bin", - "/sbin", - "/usr/bin", - "/usr/sbin", -}; - -/* abstract link() */ -typedef int (*__link_f)(const char *, const char *); - -/* - * Where in the filesystem is this busybox? - * [return] - * malloc'd string w/ full pathname of busybox's location - * NULL on failure - */ -static char *busybox_fullpath() -{ - return xreadlink("/proc/self/exe"); -} - -/* create (sym)links for each applet */ -static void install_links(const char *busybox, int use_symbolic_links) -{ - __link_f Link = link; - - char *fpc; - int i; - int rc; - - if (use_symbolic_links) - Link = symlink; - - for (i = 0; applets[i].name != NULL; i++) { - fpc = concat_path_file( - install_dir[applets[i].location], applets[i].name); - rc = Link(busybox, fpc); - if (rc!=0 && errno!=EEXIST) { - perror_msg("%s", fpc); - } - free(fpc); - } -} - -#endif /* BB_FEATURE_INSTALLER */ - -int main(int argc, char **argv) -{ - const char *s; - - applet_name = argv[0]; - - if (applet_name[0] == '-') - applet_name++; - - for (s = applet_name; *s != '\0';) { - if (*s++ == '/') - applet_name = s; - } - -#ifdef BB_LOCALE_SUPPORT -#ifdef BB_INIT - if(getpid()!=1) /* Do not set locale for `init' */ -#endif - { - setlocale(LC_ALL, ""); - } -#endif - - run_applet_by_name(applet_name, argc, argv); - error_msg_and_die("applet not found"); -} - - -int busybox_main(int argc, char **argv) -{ - int col = 0, len, i; - -#ifdef BB_FEATURE_INSTALLER - /* - * This style of argument parsing doesn't scale well - * in the event that busybox starts wanting more --options. - * If someone has a cleaner approach, by all means implement it. - */ - if (argc > 1 && (strcmp(argv[1], "--install") == 0)) { - int use_symbolic_links = 0; - int rc = 0; - char *busybox; - - /* to use symlinks, or not to use symlinks... */ - if (argc > 2) { - if ((strcmp(argv[2], "-s") == 0)) { - use_symbolic_links = 1; - } - } - - /* link */ - busybox = busybox_fullpath(); - if (busybox) { - install_links(busybox, use_symbolic_links); - free(busybox); - } else { - rc = 1; - } - return rc; - } -#endif /* BB_FEATURE_INSTALLER */ - - argc--; - - /* If we've already been here once, exit now */ - if (been_there_done_that == 1 || argc < 1) { - const struct BB_applet *a = applets; - - fprintf(stderr, "%s\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" - "\nCurrently defined functions:\n", full_version); - - while (a->name != 0) { - col += - fprintf(stderr, "%s%s", ((col == 0) ? "\t" : ", "), - (a++)->name); - if (col > 60 && a->name != 0) { - fprintf(stderr, ",\n"); - col = 0; - } - } - fprintf(stderr, "\n\n"); - exit(0); - } - - /* Flag that we've been here already */ - been_there_done_that = 1; - - /* Move the command line down a notch */ - len = argv[argc] + strlen(argv[argc]) - argv[1]; - memmove(argv[0], argv[1], len); - memset(argv[0] + len, 0, argv[1] - argv[0]); - - /* Fix up the argv pointers */ - len = argv[1] - argv[0]; - memmove(argv, argv + 1, sizeof(char *) * (argc + 1)); - for (i = 0; i < argc; i++) - argv[i] -= len; - - return (main(argc, argv)); -} - -/* -Local Variables: -c-file-style: "linux" -c-basic-offset: 4 -tab-width: 4 -End: -*/ |