1 /* ----------------------------------------------------------------------- *
3 * Copyright 2010 Intel Corp. - All Rights Reserved
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, Inc., 53 Temple Place Ste 330,
8 * Boston MA 02111-1307, USA; either version 2 of the License, or
9 * (at your option) any later version; incorporated herein by reference.
11 * ----------------------------------------------------------------------- */
16 * parse cmdline for extlinux and syslinux installer
26 #include "../version.h"
30 /* These are the options we can set their values */
31 struct sys_options opt = {
45 const struct option long_options[] = {
46 {"force", 0, NULL, 'f'}, /* dummy option for compatibility */
47 {"install", 0, NULL, 'i'},
48 {"directory", 1, NULL, 'd'},
49 {"offset", 1, NULL, 't'},
50 {"update", 0, NULL, 'U'},
51 {"zipdrive", 0, NULL, 'z'},
52 {"sectors", 1, NULL, 'S'},
53 {"stupid", 0, NULL, 's'},
54 {"heads", 1, NULL, 'H'},
55 {"raid-mode", 0, NULL, 'r'},
56 {"version", 0, NULL, 'v'},
57 {"help", 0, NULL, 'h'},
58 {"once", 1, NULL, OPT_ONCE},
59 {"clear-once", 0, NULL, 'O'},
60 {"reset-adv", 0, NULL, OPT_RESET_ADV},
61 {"menu-save", 1, NULL, 'M'},
65 const char short_options[] = "t:fid:UuzS:H:rvho:OM:";
67 void __attribute__ ((noreturn)) usage(int rv, enum syslinux_mode mode)
71 /* For unmounted fs installation (syslinux) */
73 "Usage: %s [options] device\n"
74 " --offset -t Offset of the file system on the device \n"
75 " --directory -d Directory for installation target\n",
80 /* Mounted fs installation (extlinux) */
81 /* Actually extlinux can also use -d to provide a directory too... */
83 "Usage: %s [options] directory\n",
89 " --install -i Install over the current bootsector\n"
90 " --update -U Update a previous EXTLINUX installation\n"
91 " --zip -z Force zipdrive geometry (-H 64 -S 32)\n"
92 " --sectors=# -S Force the number of sectors per track\n"
93 " --heads=# -H Force number of heads\n"
94 " --stupid -s Slow, safe and stupid mode\n"
95 " --raid -r Fall back to the next device on boot failure\n"
96 " --once=... %s Execute a command once upon boot\n"
97 " --clear-once -O Clear the boot-once command\n"
98 " --reset-adv Reset auxilliary data\n"
99 " --menu-save= -M Set the label to select as default on the next boot\n"
101 " Note: geometry is determined at boot time for devices which\n"
102 " are considered hard disks by the BIOS. Unfortunately, this is\n"
103 " not possible for devices which are considered floppy disks,\n"
104 " which includes zipdisks and LS-120 superfloppies.\n"
106 " The -z option is useful for USB devices which are considered\n"
107 " hard disks by some BIOSes and zipdrives by other BIOSes.\n",
108 mode == MODE_SYSLINUX ? " " : "-o");
113 void parse_options(int argc, char *argv[], enum syslinux_mode mode)
118 while ((o = getopt_long(argc, argv, short_options,
119 long_options, NULL)) != EOF) {
128 opt.sectors = strtoul(optarg, NULL, 0);
129 if (opt.sectors < 1 || opt.sectors > 63) {
131 "%s: invalid number of sectors: %u (must be 1-63)\n",
132 program, opt.sectors);
137 opt.heads = strtoul(optarg, NULL, 0);
138 if (opt.heads < 1 || opt.heads > 256) {
140 "%s: invalid number of heads: %u (must be 1-256)\n",
162 if (mode == MODE_SYSLINUX) {
163 fprintf(stderr, "%s: -o will change meaning in a future version, use -t or --offset\n", program);
166 /* else fall through */
168 opt.set_once = optarg;
172 opt.offset = strtoul(optarg, NULL, 0);
178 opt.directory = optarg;
184 opt.menu_save = optarg;
188 "%s " VERSION_STR " Copyright 1994-" YEAR_STR
189 " H. Peter Anvin et al\n", program);
192 fprintf(stderr, "%s: Unknown option: -%c\n", program, optopt);
193 usage(EX_USAGE, mode);
199 opt.device = argv[optind++];
203 opt.directory = argv[optind++];
208 usage(EX_USAGE, mode); /* Excess arguments */
212 * Make any user-specified ADV modifications in memory
219 syslinux_reset_adv(syslinux_adv);
222 if (syslinux_setadv(ADV_BOOTONCE, strlen(opt.set_once), opt.set_once)) {
223 fprintf(stderr, "%s: not enough space for boot-once command\n",
229 if (syslinux_setadv(ADV_MENUSAVE, strlen(opt.menu_save), opt.menu_save)) {
230 fprintf(stderr, "%s: not enough space for menu-save label\n",