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authorH. Peter Anvin <hpa@zytor.com>2010-07-05 16:05:50 -0700
committerH. Peter Anvin <hpa@zytor.com>2010-07-05 16:05:50 -0700
commit96c5005457ca23595c48c2da5afd3ef0571adc96 (patch)
tree31c0daa433bea87821296094745d298a32cce445
parent1d257f69575853b11eb4c9fb683b86018e83197c (diff)
parent66c3eb4f6fc622fc3326956adfb0c6e23342b98f (diff)
downloadsyslinux-96c5005457ca23595c48c2da5afd3ef0571adc96.tar.gz
syslinux-96c5005457ca23595c48c2da5afd3ef0571adc96.tar.xz
syslinux-96c5005457ca23595c48c2da5afd3ef0571adc96.zip
Merge remote branch 'gerth/whichsys'
-rw-r--r--com32/modules/Makefile2
-rw-r--r--com32/modules/whichsys.c128
2 files changed, 129 insertions, 1 deletions
diff --git a/com32/modules/Makefile b/com32/modules/Makefile
index f42ce963..2d479132 100644
--- a/com32/modules/Makefile
+++ b/com32/modules/Makefile
@@ -22,7 +22,7 @@ MODULES = chain.c32 config.c32 ethersel.c32 dmitest.c32 cpuidtest.c32 \
disk.c32 pcitest.c32 elf.c32 linux.c32 reboot.c32 pmload.c32 \
meminfo.c32 sdi.c32 sanboot.c32 ifcpu64.c32 vesainfo.c32 \
kbdmap.c32 cmd.c32 vpdtest.c32 host.c32 ls.c32 gpxecmd.c32 \
- ifcpu.c32 cpuid.c32 cat.c32 pwd.c32 ifplop.c32
+ ifcpu.c32 cpuid.c32 cat.c32 pwd.c32 ifplop.c32 whichsys.c32
TESTFILES =
diff --git a/com32/modules/whichsys.c b/com32/modules/whichsys.c
new file mode 100644
index 00000000..c1867228
--- /dev/null
+++ b/com32/modules/whichsys.c
@@ -0,0 +1,128 @@
+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 2010 Gert Hulselmans - 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., 51 Franklin St, Fifth Floor,
+ * Boston MA 02110-1301, USA; either version 2 of the License, or
+ * (at your option) any later version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * whichsys.c
+ *
+ * Detemine which command to execute, based on the Syslinux bootloader variant
+ * from which you run it.
+ *
+ * Usage: whichsys.c32 [-iso- command] [-pxe- command] [-sys- command]
+ * Examples: whichsys.c32 -iso- chain.c32 hd0 -sys- chain.c32 hd1 swap
+ * whichsys.c32 -iso- config iso.cfg -sys- sys.cfg -pxe- pxe.cfg
+ *
+ */
+
+#include <stdio.h>
+#include <alloca.h>
+#include <console.h>
+#include <string.h>
+#include <syslinux/boot.h>
+#include "syslinux/config.h"
+
+
+static struct syslinux_parameter {
+ char **arg[1];
+ bool option;
+} isolinux, pxelinux, syslinux;
+
+/* XXX: this really should be librarized */
+static void boot_args(char **args)
+{
+ int len = 0, a = 0;
+ char **pp;
+ const char *p;
+ char c, *q, *str;
+
+ for (pp = args; *pp; pp++)
+ len += strlen(*pp) + 1;
+
+ q = str = alloca(len);
+ for (pp = args; *pp; pp++) {
+ p = *pp;
+ while ((c = *p++))
+ *q++ = c;
+ *q++ = ' ';
+ a = 1;
+ }
+ q -= a;
+ *q = '\0';
+
+ if (!str[0])
+ syslinux_run_default();
+ else
+ syslinux_run_command(str);
+}
+
+static void usage(void)
+{
+ static const char usage[] = "\
+Usage: whichsys.c32 [-iso- command] [-pxe- command] [-sys- command]\n\
+Examples: whichsys.c32 -iso- chain.c32 hd0 -sys- chain.c32 hd1 swap\n\
+ whichsys.c32 -iso- config iso.cfg -sys- sys.cfg -pxe- pxe.cfg\n";
+ fprintf(stderr, usage);
+}
+
+int main(int argc, char *argv[])
+{
+ const union syslinux_derivative_info *sdi;
+
+ int arg = 0;
+
+ openconsole(&dev_null_r, &dev_stdcon_w);
+
+ /* If no argument got passed, let's show the usage */
+ if (argc == 1) {
+ usage();
+ return 0;
+ }
+
+ arg++;
+
+ while (arg < argc) {
+ if (!strcmp(argv[arg], "-iso-")) {
+ argv[arg] = NULL;
+ isolinux.arg[0] = &argv[arg + 1];
+ isolinux.option = true;
+ }
+ if (!strcmp(argv[arg], "-pxe-")) {
+ argv[arg] = NULL;
+ pxelinux.arg[0] = &argv[arg + 1];
+ pxelinux.option = true;
+ }
+ if (!strcmp(argv[arg], "-sys-")) {
+ argv[arg] = NULL;
+ syslinux.arg[0] = &argv[arg + 1];
+ syslinux.option = true;
+ }
+ arg++;
+ }
+
+ sdi = syslinux_derivative_info();
+
+ switch (sdi->c.filesystem) {
+ case SYSLINUX_FS_ISOLINUX:
+ isolinux.option ? boot_args(isolinux.arg[0]) : fprintf(stderr, "No command specified for ISOLINUX.\n\n"); usage();
+ break;
+ case SYSLINUX_FS_PXELINUX:
+ pxelinux.option ? boot_args(pxelinux.arg[0]) : fprintf(stderr, "No command specified for PXELINUX.\n\n"); usage();
+ break;
+ case SYSLINUX_FS_SYSLINUX:
+ syslinux.option ? boot_args(syslinux.arg[0]) : fprintf(stderr, "No command specified for SYSLINUX.\n\n"); usage();
+ break;
+ case SYSLINUX_FS_UNKNOWN:
+ default:
+ fprintf(stderr, "Unknown Syslinux filesystem\n\n");
+ }
+
+ return -1;
+}