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authorErik Andersen2000-03-07 07:41:42 +0000
committerErik Andersen2000-03-07 07:41:42 +0000
commit246cc6dddd3df2164e8a925ebd8e9a7bba379253 (patch)
tree0b9f317c6b6fdebad4f90fbfde5565e195076ea4 /mount.c
parente916d24805b4a191bc08d2ee31c9247a30f9bc1e (diff)
downloadbusybox-246cc6dddd3df2164e8a925ebd8e9a7bba379253.zip
busybox-246cc6dddd3df2164e8a925ebd8e9a7bba379253.tar.gz
Wrote killall.
Adjusted mount, ps, utility.c, etc to handle my nifty new kernel patches the allow busybox to run perfectly without /proc. -Erik
Diffstat (limited to 'mount.c')
-rw-r--r--mount.c86
1 files changed, 79 insertions, 7 deletions
diff --git a/mount.c b/mount.c
index 37f789d..f46664b 100644
--- a/mount.c
+++ b/mount.c
@@ -46,6 +46,10 @@
#include <sys/mount.h>
#include <ctype.h>
#include <fstab.h>
+#if defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
+#include <linux/devmtab.h>
+#endif
+
#if defined BB_FEATURE_MOUNT_LOOP
#include <fcntl.h>
@@ -221,9 +225,8 @@ mount_one(char *blockDevice, char *directory, char *filesystemType,
{
int status = 0;
- char buf[255];
-
#if defined BB_FEATURE_USE_PROCFS
+ char buf[255];
if (strcmp(filesystemType, "auto") == 0) {
FILE *f = fopen("/proc/filesystems", "r");
@@ -252,6 +255,43 @@ mount_one(char *blockDevice, char *directory, char *filesystemType,
fclose(f);
} else
#endif
+#if defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
+ if (strcmp(filesystemType, "auto") == 0) {
+ int fd, i, numfilesystems;
+ char device[] = "/dev/mtab";
+ struct k_fstype *fslist;
+
+ /* open device */
+ fd = open(device, O_RDONLY);
+ if (fd < 0)
+ fatalError("open failed for `%s': %s\n", device, strerror (errno));
+
+ /* How many filesystems? We need to know to allocate enough space */
+ numfilesystems = ioctl (fd, DEVMTAB_COUNT_FILESYSTEMS);
+ if (numfilesystems<0)
+ fatalError("\nDEVMTAB_COUNT_FILESYSTEMS: %s\n", strerror (errno));
+ fslist = (struct k_fstype *) calloc ( numfilesystems, sizeof(struct k_fstype));
+
+ /* Grab the list of available filesystems */
+ status = ioctl (fd, DEVMTAB_GET_FILESYSTEMS, fslist);
+ if (status<0)
+ fatalError("\nDEVMTAB_GET_FILESYSTEMS: %s\n", strerror (errno));
+
+ /* Walk the list trying to mount filesystems
+ * that do not claim to be nodev filesystems */
+ for( i = 0 ; i < numfilesystems ; i++) {
+ if (fslist[i].mnt_nodev)
+ continue;
+ status = do_mount(blockDevice, directory, fslist[i].mnt_type,
+ flags | MS_MGC_VAL, string_flags,
+ useMtab, fakeIt, mtab_opts);
+ if (status == TRUE)
+ break;
+ }
+ free( fslist);
+ close(fd);
+ } else
+#endif
{
status = do_mount(blockDevice, directory, filesystemType,
flags | MS_MGC_VAL, string_flags, useMtab,
@@ -285,6 +325,39 @@ extern int mount_main(int argc, char **argv)
/* Only compiled in if BB_MTAB is not defined */
whine_if_fstab_is_missing();
+#if defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
+ if (argc == 1) {
+ int fd, i, numfilesystems;
+ char device[] = "/dev/mtab";
+ struct k_mntent *mntentlist;
+
+ /* open device */
+ fd = open(device, O_RDONLY);
+ if (fd < 0)
+ fatalError("open failed for `%s': %s\n", device, strerror (errno));
+
+ /* How many mounted filesystems? We need to know to
+ * allocate enough space for later... */
+ numfilesystems = ioctl (fd, DEVMTAB_COUNT_MOUNTS);
+ if (numfilesystems<0)
+ fatalError( "\nDEVMTAB_COUNT_MOUNTS: %s\n", strerror (errno));
+ mntentlist = (struct k_mntent *) calloc ( numfilesystems, sizeof(struct k_mntent));
+
+ /* Grab the list of mounted filesystems */
+ if (ioctl (fd, DEVMTAB_GET_MOUNTS, mntentlist)<0)
+ fatalError( "\nDEVMTAB_GET_MOUNTS: %s\n", strerror (errno));
+
+ for( i = 0 ; i < numfilesystems ; i++) {
+ fprintf( stdout, "%s %s %s %s %d %d\n", mntentlist[i].mnt_fsname,
+ mntentlist[i].mnt_dir, mntentlist[i].mnt_type,
+ mntentlist[i].mnt_opts, mntentlist[i].mnt_freq,
+ mntentlist[i].mnt_passno);
+ }
+ free( mntentlist);
+ close(fd);
+ exit(TRUE);
+ }
+#else
if (argc == 1) {
FILE *mountTable = setmntent(mtab_file, "r");
@@ -310,7 +383,7 @@ extern int mount_main(int argc, char **argv)
}
exit(TRUE);
}
-
+#endif
/* Parse options */
i = --argc;
@@ -372,10 +445,9 @@ extern int mount_main(int argc, char **argv)
struct mntent *m;
FILE *f = setmntent("/etc/fstab", "r");
- if (f == NULL) {
- perror("/etc/fstab");
- exit(FALSE);
- }
+ if (f == NULL)
+ fatalError( "\nCannot ream /etc/fstab: %s\n", strerror (errno));
+
while ((m = getmntent(f)) != NULL) {
// If the file system isn't noauto,
// and isn't swap or nfs, then mount it