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authorH. Peter Anvin <hpa@zytor.com>2006-08-24 21:04:27 -0700
committerH. Peter Anvin <hpa@zytor.com>2006-08-24 21:04:27 -0700
commit3c6c02ff57e3f2fd72a7ec41d8bfbf14290a7adc (patch)
treec9b4f0bc28b3fca56b26e2eda53690ba42295631 /extlinux
parent131a731d4370f69ee79e16dcafd650021b324ea2 (diff)
downloadsyslinux.git-3c6c02ff57e3f2fd72a7ec41d8bfbf14290a7adc.tar.gz
syslinux.git-3c6c02ff57e3f2fd72a7ec41d8bfbf14290a7adc.tar.xz
syslinux.git-3c6c02ff57e3f2fd72a7ec41d8bfbf14290a7adc.zip
Support building extlinux with klibc
Diffstat (limited to 'extlinux')
-rw-r--r--extlinux/extlinux.c41
1 files changed, 37 insertions, 4 deletions
diff --git a/extlinux/extlinux.c b/extlinux/extlinux.c
index 485c3373..be0e296d 100644
--- a/extlinux/extlinux.c
+++ b/extlinux/extlinux.c
@@ -25,7 +25,9 @@ typedef uint64_t u64;
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
+#ifndef __KLIBC__
#include <mntent.h>
+#endif
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
@@ -646,11 +648,14 @@ already_installed(int devfd)
int
install_loader(const char *path, int update_only)
{
- struct stat st, dst, fst;
- struct mntent *mnt = NULL;
+ struct stat st, fst;
int devfd, rv;
- FILE *mtab;
const char *devname = NULL;
+#ifndef __KLIBC__
+ struct mntent *mnt = NULL;
+ struct stat dst;
+ FILE *mtab;
+#endif
if ( stat(path, &st) || !S_ISDIR(st.st_mode) ) {
fprintf(stderr, "%s: Not a directory: %s\n", program, path);
@@ -659,6 +664,27 @@ install_loader(const char *path, int update_only)
devfd = -1;
+#ifdef __KLIBC__
+
+ /* klibc doesn't have getmntent and friends; instead, just create
+ a new device with the appropriate device type */
+
+ {
+ static char devname_buf[64];
+
+ snprintf(devname_buf, sizeof devname_buf, "/tmp/dev-%u:%u",
+ major(st.st_dev), minor(st.st_dev));
+
+ if (mknod(devname_buf, 0600, st.st_dev)) {
+ fprintf(stderr, "%s: cannot create device %s\n", program, devname);
+ return 1;
+ }
+
+ devname = devname_buf;
+ }
+
+#else
+
if ( (mtab = setmntent("/proc/mounts", "r")) ) {
while ( (mnt = getmntent(mtab)) ) {
if ( (!strcmp(mnt->mnt_type, "ext2") ||
@@ -687,6 +713,9 @@ install_loader(const char *path, int update_only)
}
fprintf(stderr, "%s is device %s\n", path, devname);
+
+#endif
+
if ( (devfd = open(devname, O_RDWR|O_SYNC)) < 0 ) {
fprintf(stderr, "%s: cannot open device %s\n", program, devname);
return 1;
@@ -706,11 +735,15 @@ install_loader(const char *path, int update_only)
}
sync();
- rv = install_bootblock(devfd, mnt->mnt_fsname);
+ rv = install_bootblock(devfd, devname);
close(devfd);
sync();
+#ifdef __KLIBC__
+ unlink(devname);
+#else
endmntent(mtab);
+#endif
if ( rv ) return rv;