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-rw-r--r--contrib/syslinux-4.02/libinstaller/syslxopt.c267
1 files changed, 267 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/libinstaller/syslxopt.c b/contrib/syslinux-4.02/libinstaller/syslxopt.c
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+++ b/contrib/syslinux-4.02/libinstaller/syslxopt.c
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+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 2010 Intel Corp. - All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, Inc., 53 Temple Place Ste 330,
+ * Boston MA 02111-1307, USA; either version 2 of the License, or
+ * (at your option) any later version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * syslxopt.c
+ *
+ * parse cmdline for extlinux and syslinux installer
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+#include <getopt.h>
+#include <sysexits.h>
+#include "../version.h"
+#include "syslxcom.h"
+#include "syslxopt.h"
+
+/* These are the options we can set their values */
+struct sys_options opt = {
+ .sectors = 0,
+ .heads = 0,
+ .raid_mode = 0,
+ .stupid_mode = 0,
+ .reset_adv = 0,
+ .set_once = NULL,
+ .update_only = -1,
+ .directory = NULL,
+ .device = NULL,
+ .offset = 0,
+ .menu_save = NULL,
+ .install_mbr = 0,
+ .activate_partition = 0,
+ .force = 0,
+ .bootsecfile = NULL,
+};
+
+const struct option long_options[] = {
+ {"force", 0, NULL, 'f'}, /* DOS/Win32/mtools only */
+ {"install", 0, NULL, 'i'},
+ {"directory", 1, NULL, 'd'},
+ {"offset", 1, NULL, 't'},
+ {"update", 0, NULL, 'U'},
+ {"zipdrive", 0, NULL, 'z'},
+ {"sectors", 1, NULL, 'S'},
+ {"stupid", 0, NULL, 's'},
+ {"heads", 1, NULL, 'H'},
+ {"raid-mode", 0, NULL, 'r'},
+ {"version", 0, NULL, 'v'},
+ {"help", 0, NULL, 'h'},
+ {"once", 1, NULL, OPT_ONCE},
+ {"clear-once", 0, NULL, 'O'},
+ {"reset-adv", 0, NULL, OPT_RESET_ADV},
+ {"menu-save", 1, NULL, 'M'},
+ {"mbr", 0, NULL, 'm'}, /* DOS/Win32 only */
+ {"active", 0, NULL, 'a'}, /* DOS/Win32 only */
+ {0, 0, 0, 0}
+};
+
+const char short_options[] = "t:fid:UuzS:H:rvho:OM:ma";
+
+void __attribute__ ((noreturn)) usage(int rv, enum syslinux_mode mode)
+{
+ switch (mode) {
+ case MODE_SYSLINUX:
+ /* For unmounted fs installation (syslinux) */
+ fprintf(stderr,
+ "Usage: %s [options] device\n"
+ " --offset -t Offset of the file system on the device \n"
+ " --directory -d Directory for installation target\n",
+ program);
+ break;
+
+ case MODE_EXTLINUX:
+ /* Mounted fs installation (extlinux) */
+ /* Actually extlinux can also use -d to provide a directory too... */
+ fprintf(stderr,
+ "Usage: %s [options] directory\n",
+ program);
+ break;
+
+ case MODE_SYSLINUX_DOSWIN:
+ /* For fs installation under Windows (syslinux.exe) */
+ fprintf(stderr,
+ "Usage: %s [options] <drive>: [bootsecfile]\n"
+ " --directory -d Directory for installation target\n",
+ program);
+ break;
+ }
+
+ fprintf(stderr,
+ " --install -i Install over the current bootsector\n"
+ " --update -U Update a previous EXTLINUX installation\n"
+ " --zip -z Force zipdrive geometry (-H 64 -S 32)\n"
+ " --sectors=# -S Force the number of sectors per track\n"
+ " --heads=# -H Force number of heads\n"
+ " --stupid -s Slow, safe and stupid mode\n"
+ " --raid -r Fall back to the next device on boot failure\n"
+ " --once=... %s Execute a command once upon boot\n"
+ " --clear-once -O Clear the boot-once command\n"
+ " --reset-adv Reset auxilliary data\n",
+ mode == MODE_SYSLINUX ? " " : "-o");
+ /* Have to chop this roughly in half for the DOS installer for some reason */
+ fprintf(stderr,
+ " --menu-save= -M Set the label to select as default on the next boot\n"
+ " --mbr -m Install an MBR (DOS/Win32 installers only)\n"
+ " --active -a Mark partition as active (DOS/Win32 installers only)\n"
+ " --force -f Ignore precautions (DOS/Win32/mtools installers only)\n"
+ "\n"
+ " Note: geometry is determined at boot time for devices which\n"
+ " are considered hard disks by the BIOS. Unfortunately, this is\n"
+ " not possible for devices which are considered floppy disks,\n"
+ " which includes zipdisks and LS-120 superfloppies.\n"
+ "\n"
+ " The -z option is useful for USB devices which are considered\n"
+ " hard disks by some BIOSes and zipdrives by other BIOSes.");
+
+ exit(rv);
+}
+
+void parse_options(int argc, char *argv[], enum syslinux_mode mode)
+{
+ int o;
+
+ program = argv[0];
+ while ((o = getopt_long(argc, argv, short_options,
+ long_options, NULL)) != EOF) {
+ switch (o) {
+ case 'f':
+ opt.force = 1;
+ break;
+ case 'z':
+ opt.heads = 64;
+ opt.sectors = 32;
+ break;
+ case 'S':
+ opt.sectors = strtoul(optarg, NULL, 0);
+ if (opt.sectors < 1 || opt.sectors > 63) {
+ fprintf(stderr,
+ "%s: invalid number of sectors: %u (must be 1-63)\n",
+ program, opt.sectors);
+ exit(EX_USAGE);
+ }
+ break;
+ case 'H':
+ opt.heads = strtoul(optarg, NULL, 0);
+ if (opt.heads < 1 || opt.heads > 256) {
+ fprintf(stderr,
+ "%s: invalid number of heads: %u (must be 1-256)\n",
+ program, opt.heads);
+ exit(EX_USAGE);
+ }
+ break;
+ case 'r':
+ opt.raid_mode = 1;
+ break;
+ case 's':
+ opt.stupid_mode = 1;
+ break;
+ case 'i':
+ opt.update_only = 0;
+ break;
+ case 'u':
+ case 'U':
+ opt.update_only = 1;
+ break;
+ case 'h':
+ usage(0, mode);
+ break;
+ case 'o':
+ if (mode == MODE_SYSLINUX) {
+ fprintf(stderr, "%s: -o will change meaning in a future version, use -t or --offset\n", program);
+ goto opt_offset;
+ }
+ /* else fall through */
+ case OPT_ONCE:
+ opt.set_once = optarg;
+ break;
+ case 't':
+ opt_offset:
+ opt.offset = strtoul(optarg, NULL, 0);
+ break;
+ case 'O':
+ opt.set_once = "";
+ break;
+ case 'd':
+ opt.directory = optarg;
+ break;
+ case OPT_RESET_ADV:
+ opt.reset_adv = 1;
+ break;
+ case 'M':
+ opt.menu_save = optarg;
+ break;
+ case 'm':
+ opt.install_mbr = 1;
+ break;
+ case 'a':
+ opt.activate_partition = 1;
+ break;
+ case 'v':
+ fprintf(stderr,
+ "%s " VERSION_STR " Copyright 1994-" YEAR_STR
+ " H. Peter Anvin et al\n", program);
+ exit(0);
+ default:
+ fprintf(stderr, "%s: Unknown option: -%c\n", program, optopt);
+ usage(EX_USAGE, mode);
+ }
+ }
+
+ switch (mode) {
+ case MODE_SYSLINUX:
+ case MODE_SYSLINUX_DOSWIN:
+ opt.device = argv[optind++];
+ break;
+ case MODE_EXTLINUX:
+ if (!opt.directory)
+ opt.directory = argv[optind++];
+ break;
+ }
+
+ if (argv[optind] && (mode == MODE_SYSLINUX_DOSWIN))
+ /* Allow for the boot-sector argument */
+ opt.bootsecfile = argv[optind++];
+ if (argv[optind])
+ usage(EX_USAGE, mode); /* Excess arguments */
+}
+
+/*
+ * Make any user-specified ADV modifications in memory
+ */
+int modify_adv(void)
+{
+ int rv = 0;
+
+ if (opt.reset_adv)
+ syslinux_reset_adv(syslinux_adv);
+
+ if (opt.set_once) {
+ if (syslinux_setadv(ADV_BOOTONCE, strlen(opt.set_once), opt.set_once)) {
+ fprintf(stderr, "%s: not enough space for boot-once command\n",
+ program);
+ rv = -1;
+ }
+ }
+ if (opt.menu_save) {
+ if (syslinux_setadv(ADV_MENUSAVE, strlen(opt.menu_save), opt.menu_save)) {
+ fprintf(stderr, "%s: not enough space for menu-save label\n",
+ program);
+ rv = -1;
+ }
+ }
+
+ return rv;
+}
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