libinstaller: Add --mbr, --active, and --force options

In order to consolidate the installer option-parsing system,
we add the --mbr (-m), --active (-a), and --force (-f)
options from the DOS, Win32, and mtools installers to
libinstaller.

Since the -m and -a options are not currently valid for the
Linux 'syslinux' and 'extlinux' installers, we add error
messages to both of these.  The -f option is allowed but
does nothing for them.

Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>

1 files changed, 17 insertions, 2 deletions

diff --git a/libinstaller/syslxopt.c b/libinstaller/syslxopt.c
index 0ff2efbb..8aee160e 100644..100755
--- a/libinstaller/syslxopt.c
+++ b/libinstaller/syslxopt.c
@@ -40,10 +40,13 @@ struct sys_options opt = {
     .device = NULL,
     .offset = 0,
     .menu_save = NULL,
+    .install_mbr = 0,
+    .activate_partition = 0,
+    .force = 0,
 };
 
 const struct option long_options[] = {
-    {"force", 0, NULL, 'f'},	/* dummy option for compatibility */
+    {"force", 0, NULL, 'f'},	/* DOS/Win32/mtools only */
     {"install", 0, NULL, 'i'},
     {"directory", 1, NULL, 'd'},
     {"offset", 1, NULL, 't'},
@@ -59,10 +62,12 @@ const struct option long_options[] = {
     {"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:";
+const char short_options[] = "t:fid:UuzS:H:rvho:OM:ma";
 
 void __attribute__ ((noreturn)) usage(int rv, enum syslinux_mode mode)
 {
@@ -97,6 +102,9 @@ void __attribute__ ((noreturn)) usage(int rv, enum syslinux_mode mode)
 	    "  --clear-once -O  Clear the boot-once command\n"
 	    "  --reset-adv      Reset auxilliary data\n"
 	    "  --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"
@@ -119,6 +127,7 @@ void parse_options(int argc, char *argv[], enum syslinux_mode mode)
 			    long_options, NULL)) != EOF) {
 	switch (o) {
 	case 'f':
+	    opt.force = 1;
 	    break;
 	case 'z':
 	    opt.heads = 64;
@@ -183,6 +192,12 @@ void parse_options(int argc, char *argv[], enum syslinux_mode mode)
 	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