int busybox_main(int argc, char **argv) { int col = 0, len, i; #ifdef CONFIG_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 /* CONFIG_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)); }
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 (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; } } /* link */ busybox = xreadlink("/proc/self/exe"); if (busybox) { install_links(busybox, use_symbolic_links); free(busybox); } else { rc = 1; } return rc; } /* 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); } } else run_applet_by_name(bb_applet_name=argv[1], argc-1, argv+1); bb_error_msg_and_die("applet not found"); }