Initial revision
This commit is contained in:
Eric Andersen
230
busybox.c
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230
busybox.c
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#include "internal.h"
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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static int been_there_done_that = 0;
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static const struct Applet applets[] = {
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#ifdef BB_BUSYBOX //bin
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{"busybox", busybox_main},
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#endif
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#ifdef BB_BLOCK_DEVICE //sbin
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{"block_device", block_device_main},
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#endif
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#ifdef BB_CAT //bin
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{"cat", cat_more_main},
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#endif
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#ifdef BB_CHGRP //bin
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{"chgrp", chgrp_main},
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#endif
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#ifdef BB_CHMOD //bin
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{"chmod", chmod_main},
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#endif
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#ifdef BB_CHOWN //bin
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{"chown", chown_main},
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#endif
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#ifdef BB_CHROOT //sbin
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{"chroot", chroot_main},
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#endif
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#ifdef BB_CLEAR //usr/bin
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{"clear", clear_main},
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#endif
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#ifdef BB_CP //bin
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{"cp", dyadic_main},
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#endif
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#ifdef BB_DATE //bin
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{"date", date_main},
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#endif
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#ifdef BB_DD //bin
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{"dd", dd_main},
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#endif
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#ifdef BB_DF //bin
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{"df", df_main},
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#endif
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#ifdef BB_DMESG //bin
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{"dmesg", dmesg_main},
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#endif
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#ifdef BB_DUTMP //usr/sbin
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{"dutmp", cat_more_main},
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#endif
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#ifdef BB_FALSE //bin
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{"false", false_main},
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#endif
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#ifdef BB_FDFLUSH //bin
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{"fdflush", monadic_main},
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#endif
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#ifdef BB_FIND //usr/bin
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{"find", find_main},
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#endif
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#ifdef BB_GREP //bin
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{"grep", grep_main},
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#endif
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#ifdef BB_HALT //sbin
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{"halt", halt_main},
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#endif
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#ifdef BB_INIT //sbin
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{"init", init_main},
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#endif
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#ifdef BB_KILL //bin
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{"kill", kill_main},
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#endif
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#ifdef BB_LENGTH //usr/bin
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{"length", length_main},
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#endif
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#ifdef BB_LN //bin
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{"ln", dyadic_main},
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#endif
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#ifdef BB_LOADKMAP //sbin
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{"loadkmap", loadkmap_main},
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#endif
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#ifdef BB_LOSETUP //sbin
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{"losetup", losetup_main},
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#endif
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#ifdef BB_LS //bin
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{"ls", ls_main},
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#endif
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#ifdef BB_MAKEDEVS //sbin
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{"makedevs", makedevs_main},
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#endif
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#ifdef BB_MATH //usr/bin
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{"math", math_main},
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#endif
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#ifdef BB_MKDIR //bin
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{"mkdir", monadic_main},
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#endif
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#ifdef BB_MKNOD //bin
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{"mknod", mknod_main},
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#endif
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#ifdef BB_MKSWAP //sbin
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{"mkswap", mkswap_main},
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#endif
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#ifdef BB_MNC //usr/bin
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{"mnc", mnc_main},
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#endif
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#ifdef BB_MORE //bin
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{"more", cat_more_main},
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#endif
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#ifdef BB_MOUNT //bin
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{"mount", mount_main},
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#endif
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#ifdef BB_MT //bin
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{"mt", mt_main},
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#endif
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#ifdef BB_MV //bin
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{"mv", dyadic_main},
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#endif
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#ifdef BB_PRINTF //usr/bin
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{"printf", printf_main},
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#endif
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#ifdef BB_PWD //bin
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{"pwd", pwd_main},
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#endif
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#ifdef BB_REBOOT //sbin
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{"reboot", reboot_main},
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#endif
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#ifdef BB_RM //bin
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{"rm", rm_main},
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#endif
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#ifdef BB_RMDIR //bin
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{"rmdir", monadic_main},
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#endif
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#ifdef BB_SLEEP //bin
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{"sleep", sleep_main},
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#endif
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#ifdef BB_TAR //bin
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{"tar", tar_main},
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#endif
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#ifdef BB_SWAPOFF //sbin
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{"swapoff", monadic_main},
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#endif
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#ifdef BB_SWAPON //sbin
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{"swapon", monadic_main},
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#endif
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#ifdef BB_SYNC //bin
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{"sync", sync_main},
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#endif
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#ifdef BB_TOUCH //usr/bin
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{"touch", monadic_main},
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#endif
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#ifdef BB_TRUE //bin
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{"true", true_main},
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#endif
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#ifdef BB_UMOUNT //bin
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{"umount", umount_main},
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#endif
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#ifdef BB_UPDATE //sbin
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{"update", update_main},
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#endif
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#ifdef BB_ZCAT //bin
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{"zcat", zcat_main},
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{"gunzip", zcat_main},
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#endif
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#ifdef BB_GZIP //bin
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{"gzip", gzip_main},
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#endif
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{0}
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};
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int main(int argc, char **argv)
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{
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char *s = argv[0];
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char *name = argv[0];
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const struct Applet *a = applets;
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while (*s != '\0') {
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if (*s++ == '/')
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name = s;
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}
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while (a->name != 0) {
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if (strcmp(name, a->name) == 0) {
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int status;
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status = ((*(a->main)) (argc, argv));
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if (status < 0) {
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fprintf(stderr, "%s: %s\n", a->name, strerror(errno));
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}
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fprintf(stderr, "\n");
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exit(status);
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}
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a++;
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}
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return (busybox_main(argc, argv));
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}
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int busybox_main(int argc, char **argv)
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{
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argc--;
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argv++;
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/* If we've already been here once, exit now */
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if (been_there_done_that == 1)
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return -1;
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been_there_done_that = 1;
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if (argc < 1) {
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const struct Applet *a = applets;
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fprintf(stderr, "BusyBox v%s (%s) multi-call binary -- GPL2\n",
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BB_VER, BB_BT);
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fprintf(stderr, "Usage: busybox [function] [arguments]...\n");
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fprintf(stderr,
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"\n\tMost people will create a symlink to busybox for each\n"
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"\tfunction name, and busybox will act like whatever you invoke it as.\n");
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fprintf(stderr, "\nCurrently defined functions:\n");
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if (a->name != 0) {
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fprintf(stderr, "%s", a->name);
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a++;
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}
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while (a->name != 0) {
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fprintf(stderr, ", %s", a->name);
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a++;
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}
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fprintf(stderr, "\n\n");
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exit(-1);
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} else
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return (main(argc, argv));
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}
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