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https://git.freebsd.org/ports.git
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c7564382f2
filesystem or disk image. This FreeBSD port can additionally operate on plain files containing a FAT image, thus requiring no special privilege. The program relies on mtools to perform the manipulation of the FAT filesystem. WWW: http://syslinux.zytor.com/
65 lines
1.8 KiB
Text
65 lines
1.8 KiB
Text
diff -ubwr ../../work.2/syslinux-3.72/mtools/syslinux.c ./mtools/syslinux.c
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--- ../../work.2/syslinux-3.72/mtools/syslinux.c 2008-11-26 13:32:57.000000000 +0100
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+++ ./mtools/syslinux.c 2008-11-26 14:07:05.000000000 +0100
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@@ -123,6 +123,52 @@
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return xpread(pp, buf, secsize, offset);
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}
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+/*
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+ * load a file to be used as boot image
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+ */
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+static int load_boot_image(const char *name)
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+{
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+ int l, fd;
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+ struct stat sb;
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+ unsigned char *buf;
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+
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+ memset(&sb, 0, sizeof(sb));
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+ fd = open(name, O_RDONLY);
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+ if (fd < 0) {
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+ fprintf(stderr, "cannot open boot image %s\n", name);
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+ return 1;
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+ }
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+ if (fstat(fd, &sb)) {
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+ fprintf(stderr, "cannot stat boot image %s\n", name);
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+ return 1;
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+ }
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+ if ( (sb.st_mode & S_IFREG) == 0) {
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+ fprintf(stderr, "boot image %s is not a file 0x%x\n", name, sb.st_mode);
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+ return 1;
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+ }
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+ if (sb.st_size < 1024 || sb.st_size > 0x8000) {
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+ fprintf(stderr, "boot image %s bad size %lld\n", name, sb.st_size);
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+ return 1;
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+ }
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+ buf = calloc(1, sb.st_size);
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+ if (buf == NULL) {
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+ fprintf(stderr, "malloc failed for boot image %s\n", name);
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+ return 1;
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+ }
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+ l = read(fd, buf, sb.st_size);
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+ if (l != sb.st_size) {
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+ fprintf(stderr, "read failed for boot image %s got %d\n", name, l);
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+ return 1;
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+ }
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+ if (buf[0] != 0xeb || buf[0x200] != 0x0d) {
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+ fprintf(stderr, "bad content for boot image %s\n", name);
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+ return 1;
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+ }
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+ syslinux_bootsect = buf;
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+ syslinux_ldlinux = buf + 512;
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+ syslinux_ldlinux_len = sb.st_size - 512;
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+ return 0;
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+}
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int main(int argc, char *argv[])
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{
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@@ -163,6 +209,8 @@
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stupid = 1;
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} else if ( *opt == 'v' ) {
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verbose++;
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+ } else if ( *opt == 'b' && argp[1] ) {
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+ load_boot_image(*++argp);
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} else if ( *opt == 'r' ) {
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raid_mode = 1;
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} else if ( *opt == 'f' ) {
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