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"
31 /* These are the options we can set their values */
32 struct sys_options opt = {
45 .activate_partition = 0,
50 const struct option long_options[] = {
51 {"force", 0, NULL, 'f'}, /* DOS/Win32/mtools only */
52 {"install", 0, NULL, 'i'},
53 {"directory", 1, NULL, 'd'},
54 {"offset", 1, NULL, 't'},
55 {"update", 0, NULL, 'U'},
56 {"zipdrive", 0, NULL, 'z'},
57 {"sectors", 1, NULL, 'S'},
58 {"stupid", 0, NULL, 's'},
59 {"heads", 1, NULL, 'H'},
60 {"raid-mode", 0, NULL, 'r'},
61 {"version", 0, NULL, 'v'},
62 {"help", 0, NULL, 'h'},
63 {"once", 1, NULL, OPT_ONCE},
64 {"clear-once", 0, NULL, 'O'},
65 {"reset-adv", 0, NULL, OPT_RESET_ADV},
66 {"menu-save", 1, NULL, 'M'},
67 {"mbr", 0, NULL, 'm'}, /* DOS/Win32 only */
68 {"active", 0, NULL, 'a'}, /* DOS/Win32 only */
69 {"device", 1, NULL, OPT_DEVICE},
73 const char short_options[] = "t:fid:UuzsS:H:rvho:OM:ma";
75 void __attribute__ ((noreturn)) usage(int rv, enum syslinux_mode mode)
79 /* For unmounted fs installation (syslinux) */
81 "Usage: %s [options] device\n"
82 " --offset -t Offset of the file system on the device \n"
83 " --directory -d Directory for installation target\n",
88 /* Mounted fs installation (extlinux) */
89 /* Actually extlinux can also use -d to provide a directory too... */
91 "Usage: %s [options] directory\n"
92 " --device Force use of a specific block device (experts only)\n",
96 case MODE_SYSLINUX_DOSWIN:
97 /* For fs installation under Windows (syslinux.exe) */
99 "Usage: %s [options] <drive>: [bootsecfile]\n"
100 " --directory -d Directory for installation target\n",
106 " --install -i Install over the current bootsector\n"
107 " --update -U Update a previous installation\n"
108 " --zip -z Force zipdrive geometry (-H 64 -S 32)\n"
109 " --sectors=# -S Force the number of sectors per track\n"
110 " --heads=# -H Force number of heads\n"
111 " --stupid -s Slow, safe and stupid mode\n"
112 " --raid -r Fall back to the next device on boot failure\n"
113 " --once=... %s Execute a command once upon boot\n"
114 " --clear-once -O Clear the boot-once command\n"
115 " --reset-adv Reset auxilliary data\n",
116 mode == MODE_SYSLINUX ? " " : "-o");
118 * Have to chop this roughly in half for the DOS installer due
119 * to limited output buffer size
122 " --menu-save= -M Set the label to select as default on the next boot\n");
123 if (mode == MODE_SYSLINUX_DOSWIN)
125 " --mbr -m Install an MBR\n"
126 " --active -a Mark partition as active\n");
128 if (mode == MODE_SYSLINUX_DOSWIN || mode == MODE_SYSLINUX)
130 " --force -f Ignore precautions\n");
135 void parse_options(int argc, char *argv[], enum syslinux_mode mode)
140 while ((o = getopt_long(argc, argv, short_options,
141 long_options, NULL)) != EOF) {
151 opt.sectors = strtoul(optarg, NULL, 0);
152 if (opt.sectors < 1 || opt.sectors > 63) {
154 "%s: invalid number of sectors: %u (must be 1-63)\n",
155 program, opt.sectors);
160 opt.heads = strtoul(optarg, NULL, 0);
161 if (opt.heads < 1 || opt.heads > 256) {
163 "%s: invalid number of heads: %u (must be 1-256)\n",
185 if (mode == MODE_SYSLINUX) {
186 fprintf(stderr, "%s: -o will change meaning in a future version, use -t or --offset\n", program);
189 /* else fall through */
191 opt.set_once = optarg;
195 opt.offset = strtoul(optarg, NULL, 0);
201 opt.directory = optarg;
207 opt.menu_save = optarg;
213 opt.activate_partition = 1;
216 if (mode != MODE_EXTLINUX)
217 usage(EX_USAGE, mode);
222 "%s " VERSION_STR " Copyright 1994-" YEAR_STR
223 " H. Peter Anvin et al\n", program);
226 fprintf(stderr, "%s: Unknown option: -%c\n", program, optopt);
227 usage(EX_USAGE, mode);
233 case MODE_SYSLINUX_DOSWIN:
234 opt.device = argv[optind++];
238 opt.directory = argv[optind++];
242 if (argv[optind] && (mode == MODE_SYSLINUX_DOSWIN))
243 /* Allow for the boot-sector argument */
244 opt.bootsecfile = argv[optind++];
246 usage(EX_USAGE, mode); /* Excess arguments */
250 * Make any user-specified ADV modifications in memory
257 syslinux_reset_adv(syslinux_adv);
260 if (syslinux_setadv(ADV_BOOTONCE, strlen(opt.set_once), opt.set_once)) {
261 fprintf(stderr, "%s: not enough space for boot-once command\n",
267 if (syslinux_setadv(ADV_MENUSAVE, strlen(opt.menu_save), opt.menu_save)) {
268 fprintf(stderr, "%s: not enough space for menu-save label\n",