/* vi: set sw=4 ts=4: */
-#include "internal.h"
#include <stdio.h>
#include <string.h>
+#include <unistd.h>
#include <errno.h>
-
-static int been_there_done_that = 0;
-
-/* It has been alledged that doing such things can
- * help reduce binary size when staticly linking,
- * of course with glibc, this is unlikely as long
- * as we use things like printf -- perhaps a printf
- * replacement may be in order
- */
-#if 0
-void exit(int status) __attribute__ ((noreturn));
-void exit(int status)
-{
- _exit(status);
-};
-void abort(void) __attribute__ ((__noreturn__));
-void abort(void)
-{
- _exit(0);
-};
-int atexit(void (*__func) (void))
-{
- _exit(0);
-};
-void *__libc_stack_end;
-#endif
-
-const struct BB_applet applets[] = {
-
-#ifdef BB_AR
- {"ar", ar_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_BASENAME
- {"basename", basename_main, _BB_DIR_USR_BIN},
-#endif
- {"busybox", busybox_main, _BB_DIR_BIN},
-#ifdef BB_CAT
- {"cat", cat_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_CHMOD_CHOWN_CHGRP
- {"chgrp", chmod_chown_chgrp_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_CHMOD_CHOWN_CHGRP
- {"chmod", chmod_chown_chgrp_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_CHMOD_CHOWN_CHGRP
- {"chown", chmod_chown_chgrp_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_CHROOT
- {"chroot", chroot_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_CLEAR
- {"clear", clear_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_CHVT
- {"chvt", chvt_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_CP_MV
- {"cp", cp_mv_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_CUT
- {"cut", cut_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_DATE
- {"date", date_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_DC
- {"dc", dc_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_DD
- {"dd", dd_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_DF
- {"df", df_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_DIRNAME
- {"dirname", dirname_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_DMESG
- {"dmesg", dmesg_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_DU
- {"du", du_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_DUMPKMAP
- {"dumpkmap", dumpkmap_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_DUTMP
- {"dutmp", dutmp_main, _BB_DIR_USR_SBIN},
-#endif
-#ifdef BB_ECHO
- {"echo", echo_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_TRUE_FALSE
- {"false", false_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_FBSET
- {"fbset", fbset_main, _BB_DIR_USR_SBIN},
-#endif
-#ifdef BB_FDFLUSH
- {"fdflush", fdflush_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_FIND
- {"find", find_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_FREE
- {"free", free_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_FREERAMDISK
- {"freeramdisk", freeramdisk_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_DEALLOCVT
- {"deallocvt", deallocvt_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_FSCK_MINIX
- {"fsck.minix", fsck_minix_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_GREP
- {"grep", grep_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_GUNZIP
- {"gunzip", gunzip_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_GZIP
- {"gzip", gzip_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_HALT
- {"halt", halt_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_HEAD
- {"head", head_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_HOSTID
- {"hostid", hostid_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_HOSTNAME
- {"hostname", hostname_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_ID
- {"id", id_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_INIT
- {"init", init_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_INSMOD
- {"insmod", insmod_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_KILL
- {"kill", kill_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_KILLALL
- {"killall", kill_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_LENGTH
- {"length", length_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_LINUXRC
- {"linuxrc", init_main, _BB_DIR_ROOT},
-#endif
-#ifdef BB_LN
- {"ln", ln_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_LOADACM
- {"loadacm", loadacm_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_LOADFONT
- {"loadfont", loadfont_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_LOADKMAP
- {"loadkmap", loadkmap_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_LOGGER
- {"logger", logger_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_LOGNAME
- {"logname", logname_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_LS
- {"ls", ls_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_LSMOD
- {"lsmod", lsmod_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_MAKEDEVS
- {"makedevs", makedevs_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_MD5SUM
- {"md5sum", md5sum_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_MKDIR
- {"mkdir", mkdir_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_MKFIFO
- {"mkfifo", mkfifo_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_MKFS_MINIX
- {"mkfs.minix", mkfs_minix_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_MKNOD
- {"mknod", mknod_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_MKSWAP
- {"mkswap", mkswap_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_MKTEMP
- {"mktemp", mktemp_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_NC
- {"nc", nc_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_MORE
- {"more", more_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_MOUNT
- {"mount", mount_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_MT
- {"mt", mt_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_CP_MV
- {"mv", cp_mv_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_NSLOOKUP
- {"nslookup", nslookup_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_PING
- {"ping", ping_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_POWEROFF
- {"poweroff", poweroff_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_PRINTF
- {"printf", printf_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_PS
- {"ps", ps_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_PWD
- {"pwd", pwd_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_REBOOT
- {"reboot", reboot_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_RM
- {"rm", rm_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_RMDIR
- {"rmdir", rmdir_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_RMMOD
- {"rmmod", rmmod_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_SED
- {"sed", sed_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_SETKEYCODES
- {"setkeycodes", setkeycodes_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_SH
- {"sh", shell_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_SLEEP
- {"sleep", sleep_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_SORT
- {"sort", sort_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_SYNC
- {"sync", sync_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_SYSLOGD
- {"syslogd", syslogd_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_SWAPONOFF
- {"swapon", swap_on_off_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_SWAPONOFF
- {"swapoff", swap_on_off_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_TAIL
- {"tail", tail_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_TAR
- {"tar", tar_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_TELNET
- {"telnet", telnet_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_TEST
- {"test", test_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_TEE
- {"tee", tee_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_TOUCH
- {"touch", touch_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_TR
- {"tr", tr_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_TRUE_FALSE
- {"true", true_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_TTY
- {"tty", tty_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_UMOUNT
- {"umount", umount_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_UNAME
- {"uname", uname_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_UNIQ
- {"uniq", uniq_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_UPDATE
- {"update", update_main, _BB_DIR_SBIN},
-#endif
-#ifdef BB_UPTIME
- {"uptime", uptime_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_UUENCODE
- {"uuencode", uuencode_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_UUDECODE
- {"uudecode", uudecode_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_USLEEP
- {"usleep", usleep_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_WC
- {"wc", wc_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_WHICH
- {"which", which_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_WHOAMI
- {"whoami", whoami_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_YES
- {"yes", yes_main, _BB_DIR_USR_BIN},
-#endif
-#ifdef BB_GUNZIP
- {"zcat", gunzip_main, _BB_DIR_BIN},
-#endif
-#ifdef BB_TEST
- {"[", test_main, _BB_DIR_USR_BIN},
+#include <stdlib.h>
+#include "busybox.h"
+#if ENABLE_LOCALE_SUPPORT
+#include <locale.h>
+#else
+#define setlocale(x,y)
#endif
- {0}
-};
+const char *bb_applet_name;
-#ifdef BB_FEATURE_INSTALLER
-/*
+#ifdef CONFIG_FEATURE_INSTALLER
+/*
* directory table
- * this should be consistent w/ the enum, internal.h::Location,
+ * this should be consistent w/ the enum, busybox.h::Location,
* or else...
*/
-static char* install_dir[] = {
- "/",
- "/bin",
- "/sbin",
- "/usr/bin",
- "/usr/sbin",
+static const char usr_bin [] ="/usr/bin";
+static const char usr_sbin[] ="/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
};
/* 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()
-{
- pid_t pid;
- char path[256];
- char proc[256];
- int len;
-
- pid = getpid();
- sprintf(proc, "/proc/%d/exe", pid);
- len = readlink(proc, path, 256);
- if (len != -1) {
- path[len] = 0;
- } else {
- fprintf(stderr, "busybox : %s : %s\n", proc, strerror(errno));
- return NULL;
- }
- return strdup(path);
-}
-
/* create (sym)links for each applet */
-static int install_links(const char *busybox, int use_symbolic_links)
+static void install_links(const char *busybox, int use_symbolic_links)
{
__link_f Link = link;
- char command[256];
+ char *fpc;
int i;
- int rc = 0;
+ int rc;
- if (use_symbolic_links) Link = symlink;
+ if (use_symbolic_links)
+ Link = symlink;
for (i = 0; applets[i].name != NULL; i++) {
- sprintf (
- command,
- "%s/%s",
- install_dir[applets[i].location],
- applets[i].name
- );
-#if 1
- rc |= Link(busybox, command);
-#else
- puts(command);
-#endif
- if (rc) {
- fprintf(stderr,"busybox : %s : %s\n", command, strerror(errno));
+ fpc = concat_path_file(
+ install_dir[applets[i].location], applets[i].name);
+ rc = Link(busybox, fpc);
+ if (rc!=0 && errno!=EEXIST) {
+ bb_perror_msg("%s", fpc);
}
+ free(fpc);
}
- return rc;
}
-#if 0
-int uninstall_links() ?
-#endif
-#endif /* BB_FEATURE_INSTALLER */
-
+#else
+#define install_links(x,y)
+#endif /* CONFIG_FEATURE_INSTALLER */
int main(int argc, char **argv)
{
- char *s;
- char *name;
- const struct BB_applet *a = applets;
+ const char *s;
+
+ bb_applet_name=argv[0];
+ if (*bb_applet_name == '-') bb_applet_name++;
+ for (s = bb_applet_name; *s ;)
+ if (*(s++) == '/') bb_applet_name = s;
-#ifdef BB_FEATURE_INSTALLER
- /*
- * This style of argument parsing doesn't scale well
+ /* Set locale for everybody except `init' */
+ if(ENABLE_LOCALE_SUPPORT && (!ENABLE_INIT || getpid()==1))
+ setlocale(LC_ALL, "");
+
+ run_applet_by_name(bb_applet_name, argc, argv);
+ bb_error_msg_and_die("applet not found");
+}
+
+int busybox_main(int argc, char **argv)
+{
+ /*
+ * 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)) {
+ if (ENABLE_FEATURE_INSTALLER && argc > 1 && !strcmp(argv[1], "--install")) {
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;
+ if ((strcmp(argv[2], "-s") == 0)) {
+ use_symbolic_links = 1;
}
}
/* link */
- busybox = busybox_fullpath();
+ busybox = xreadlink("/proc/self/exe");
if (busybox) {
install_links(busybox, use_symbolic_links);
free(busybox);
}
return rc;
}
-#endif /* BB_FEATURE_INSTALLER */
-
- for (s = name = argv[0]; *s != '\0';) {
- if (*s++ == '/')
- name = s;
- }
-
- *argv = name;
-
-#ifdef BB_SH
- /* Add in a special case hack -- whenever **argv == '-'
- * (i.e. '-su' or '-sh') always invoke the shell */
- if (**argv == '-')
- exit(((*(shell_main)) (argc, argv)));
-#endif
-
- while (a->name != 0) {
- if (strcmp(name, a->name) == 0) {
- exit(((*(a->main)) (argc, argv)));
- }
- a++;
- }
- return(busybox_main(argc, argv));
-}
-
-int busybox_main(int argc, char **argv)
-{
- int col = 0;
-
- argc--;
- argv++;
-
- if (been_there_done_that == 1 || argc < 1) {
- const struct BB_applet *a = applets;
-
- fprintf(stderr, "BusyBox v%s (%s) multi-call binary -- GPL2\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", BB_VER, BB_BT);
-
- 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;
+ /* Deal with --help. (Also print help when called with no arguments) */
+
+ if (argc==1 || !strcmp(argv[1],"--help") ) {
+ if (argc>2) {
+ run_applet_by_name(bb_applet_name=argv[2], 2, argv);
+ } else {
+ const struct BB_applet *a;
+ int col, output_width;
+
+ if (ENABLE_FEATURE_AUTOWIDTH) {
+ /* Obtain the terminal width. */
+ get_terminal_width_height(0, &output_width, NULL);
+ /* leading tab and room to wrap */
+ output_width -= 20;
+ } else output_width = 60;
+
+ printf("%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", bb_msg_full_version);
+
+ col=0;
+ for(a = applets; a->name;) {
+ col += printf("%s%s", (col ? ", " : "\t"), (a++)->name);
+ if (col > output_width && a->name) {
+ printf(",\n");
+ col = 0;
+ }
}
+ printf("\n\n");
+ exit(0);
}
- fprintf(stderr, "\n\n");
- exit(-1);
- }
- /* If we've already been here once, exit now */
- been_there_done_that = 1;
- return (main(argc, argv));
+ } else run_applet_by_name(bb_applet_name=argv[1], argc-1, argv+1);
+
+ bb_error_msg_and_die("applet not found");
}
/*
projects / oweals / busybox.git / blobdiff