+/* vi: set sw=4 ts=4: */
/*
* Mini mount implementation for busybox
*
#include <mntent.h>
#include <sys/mount.h>
#include <ctype.h>
-#include <fstab.h>
+#if defined BB_FEATURE_USE_DEVPS_PATCH
+#include <linux/devmtab.h>
+#endif
+
#if defined BB_FEATURE_MOUNT_LOOP
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/loop.h>
-static int set_loop(const char *device, const char *file, int offset, int *loopro);
-static char *find_unused_loop_device (void);
-static int use_loop = 0;
+static int use_loop = FALSE;
#endif
-extern const char mtab_file[]; /* Defined in utility.c */
+extern const char mtab_file[]; /* Defined in utility.c */
static const char mount_usage[] = "\tmount [flags]\n"
- "\tmount [flags] device directory [-o options,more-options]\n"
- "\n"
- "Flags:\n"
- "\t-a:\tMount all file systems in fstab.\n"
+ "\tmount [flags] device directory [-o options,more-options]\n"
+ "\n" "Flags:\n" "\t-a:\tMount all file systems in fstab.\n"
#ifdef BB_MTAB
- "\t-f:\t\"Fake\" mount. Add entry to mount table but don't mount it.\n"
- "\t-n:\tDon't write a mount table entry.\n"
+ "\t-f:\t\"Fake\" mount. Add entry to mount table but don't mount it.\n"
+ "\t-n:\tDon't write a mount table entry.\n"
#endif
- "\t-o option:\tOne of many filesystem options, listed below.\n"
- "\t-r:\tMount the filesystem read-only.\n"
- "\t-t filesystem-type:\tSpecify the filesystem type.\n"
- "\t-w:\tMount for reading and writing (default).\n"
- "\n"
- "Options for use with the \"-o\" flag:\n"
- "\tasync / sync:\tWrites are asynchronous / synchronous.\n"
- "\tdev / nodev:\tAllow use of special device files / disallow them.\n"
- "\texec / noexec:\tAllow use of executable files / disallow them.\n"
+ "\t-o option:\tOne of many filesystem options, listed below.\n"
+ "\t-r:\tMount the filesystem read-only.\n"
+ "\t-t filesystem-type:\tSpecify the filesystem type.\n"
+ "\t-w:\tMount for reading and writing (default).\n"
+ "\n"
+ "Options for use with the \"-o\" flag:\n"
+ "\tasync / sync:\tWrites are asynchronous / synchronous.\n"
+ "\tdev / nodev:\tAllow use of special device files / disallow them.\n"
+ "\texec / noexec:\tAllow use of executable files / disallow them.\n"
#if defined BB_FEATURE_MOUNT_LOOP
- "\tloop: Mounts a file via loop device.\n"
+ "\tloop: Mounts a file via loop device.\n"
#endif
- "\tsuid / nosuid:\tAllow set-user-id-root programs / disallow them.\n"
- "\tremount: Re-mount a currently-mounted filesystem, changing its flags.\n"
- "\tro / rw: Mount for read-only / read-write.\n"
- "\t"
- "There are EVEN MORE flags that are specific to each filesystem.\n"
- "You'll have to see the written documentation for those.\n";
+ "\tsuid / nosuid:\tAllow set-user-id-root programs / disallow them.\n"
+ "\tremount: Re-mount a currently-mounted filesystem, changing its flags.\n"
+ "\tro / rw: Mount for read-only / read-write.\n"
+ "There are EVEN MORE flags that are specific to each filesystem.\n"
+ "You'll have to see the written documentation for those.\n";
struct mount_options {
- const char *name;
- unsigned long and;
- unsigned long or;
+ const char *name;
+ unsigned long and;
+ unsigned long or;
};
static const struct mount_options mount_options[] = {
- {"async", ~MS_SYNCHRONOUS, 0},
- {"defaults", ~0, 0},
- {"dev", ~MS_NODEV, 0},
- {"exec", ~MS_NOEXEC, 0},
- {"nodev", ~0, MS_NODEV},
- {"noexec", ~0, MS_NOEXEC},
- {"nosuid", ~0, MS_NOSUID},
- {"remount", ~0, MS_REMOUNT},
- {"ro", ~0, MS_RDONLY},
- {"rw", ~MS_RDONLY, 0},
- {"suid", ~MS_NOSUID, 0},
- {"sync", ~0, MS_SYNCHRONOUS},
- {0, 0, 0}
+ {"async", ~MS_SYNCHRONOUS, 0},
+ {"defaults", ~0, 0},
+ {"dev", ~MS_NODEV, 0},
+ {"exec", ~MS_NOEXEC, 0},
+ {"nodev", ~0, MS_NODEV},
+ {"noexec", ~0, MS_NOEXEC},
+ {"nosuid", ~0, MS_NOSUID},
+ {"remount", ~0, MS_REMOUNT},
+ {"ro", ~0, MS_RDONLY},
+ {"rw", ~MS_RDONLY, 0},
+ {"suid", ~MS_NOSUID, 0},
+ {"sync", ~0, MS_SYNCHRONOUS},
+ {0, 0, 0}
};
static int
-do_mount(char* specialfile, char* dir, char* filesystemtype,
- long flags, void* string_flags, int useMtab, int fakeIt, char* mtab_opts)
+do_mount(char *specialfile, char *dir, char *filesystemtype,
+ long flags, void *string_flags, int useMtab, int fakeIt,
+ char *mtab_opts)
{
- int status=0;
+ int status = 0;
+ char *lofile = NULL;
#if defined BB_MTAB
- if (fakeIt==FALSE)
+ if (fakeIt == FALSE)
#endif
- {
+ {
#if defined BB_FEATURE_MOUNT_LOOP
- if (use_loop) {
- int loro = flags & MS_RDONLY;
- char *lofile = specialfile;
- specialfile = find_unused_loop_device();
- if (specialfile == NULL) {
- fprintf(stderr, "Could not find a spare loop device\n");
- exit(1);
- }
- if (set_loop (specialfile, lofile, 0, &loro)) {
- fprintf(stderr, "Could not setup loop device\n");
- exit(1);
- }
- if (!(flags & MS_RDONLY) && loro) { /* loop is ro, but wanted rw */
- fprintf(stderr, "WARNING: loop device is read-only\n");
- flags &= ~MS_RDONLY;
- }
- }
-#endif
- status=mount(specialfile, dir, filesystemtype, flags, string_flags);
- }
-#if defined BB_MTAB
- if (status == 0) {
- if (useMtab==TRUE)
- write_mtab(specialfile, dir, filesystemtype, flags, mtab_opts);
- return 0;
- }
- else
+ if (use_loop==TRUE) {
+ int loro = flags & MS_RDONLY;
+ char *lofile = specialfile;
+
+ specialfile = find_unused_loop_device();
+ if (specialfile == NULL) {
+ fprintf(stderr, "Could not find a spare loop device\n");
+ return (FALSE);
+ }
+ if (set_loop(specialfile, lofile, 0, &loro)) {
+ fprintf(stderr, "Could not setup loop device\n");
+ return (FALSE);
+ }
+ if (!(flags & MS_RDONLY) && loro) { /* loop is ro, but wanted rw */
+ fprintf(stderr, "WARNING: loop device is read-only\n");
+ flags &= ~MS_RDONLY;
+ }
+ }
#endif
- return(status);
-}
+ status =
+ mount(specialfile, dir, filesystemtype, flags, string_flags);
+ }
+ /* If the mount was sucessful, do anything needed, then return TRUE */
+ if (status == 0) {
#if defined BB_MTAB
-#define whine_if_fstab_is_missing() {}
-#else
-extern void whine_if_fstab_is_missing()
-{
- struct stat statBuf;
- if (stat("/etc/fstab", &statBuf) < 0)
- fprintf(stderr, "/etc/fstab file missing -- install one to name /dev/root.\n\n");
-}
+ if (useMtab == TRUE) {
+ write_mtab(specialfile, dir, filesystemtype, flags, mtab_opts);
+ }
#endif
+ return (TRUE);
+ }
+
+ /* Bummer. mount failed. Clean up */
+#if defined BB_FEATURE_MOUNT_LOOP
+ if (lofile != NULL) {
+ del_loop(specialfile);
+ }
+#endif
+ return (FALSE);
+}
+
/* Seperate standard mount options from the nonstandard string options */
static void
-parse_mount_options ( char *options, unsigned long *flags, char *strflags)
+parse_mount_options(char *options, unsigned long *flags, char *strflags)
{
- while (options) {
- int gotone=FALSE;
- char *comma = strchr (options, ',');
- const struct mount_options* f = mount_options;
- if (comma)
- *comma = '\0';
-
- while (f->name != 0) {
- if (strcasecmp (f->name, options) == 0) {
-
- *flags &= f->and;
- *flags |= f->or;
- gotone=TRUE;
- break;
- }
- f++;
- }
+ while (options) {
+ int gotone = FALSE;
+ char *comma = strchr(options, ',');
+ const struct mount_options *f = mount_options;
+
+ if (comma)
+ *comma = '\0';
+
+ while (f->name != 0) {
+ if (strcasecmp(f->name, options) == 0) {
+
+ *flags &= f->and;
+ *flags |= f->or;
+ gotone = TRUE;
+ break;
+ }
+ f++;
+ }
#if defined BB_FEATURE_MOUNT_LOOP
- if (gotone==FALSE && !strcasecmp ("loop", options)) { /* loop device support */
- use_loop = 1;
- gotone=TRUE;
- }
+ if (gotone == FALSE && !strcasecmp("loop", options)) { /* loop device support */
+ use_loop = TRUE;
+ gotone = TRUE;
+ }
#endif
- if (*strflags && strflags!= '\0' && gotone==FALSE) {
- char *temp=strflags;
- temp += strlen (strflags);
- *temp++ = ',';
- *temp++ = '\0';
- }
- if (gotone==FALSE)
- strcat (strflags, options);
- if (comma) {
- *comma = ',';
- options = ++comma;
- } else {
- break;
+ if (*strflags && strflags != '\0' && gotone == FALSE) {
+ char *temp = strflags;
+
+ temp += strlen(strflags);
+ *temp++ = ',';
+ *temp++ = '\0';
+ }
+ if (gotone == FALSE)
+ strcat(strflags, options);
+ if (comma) {
+ *comma = ',';
+ options = ++comma;
+ } else {
+ break;
+ }
}
- }
}
int
mount_one(char *blockDevice, char *directory, char *filesystemType,
- unsigned long flags, char *string_flags, int useMtab, int fakeIt, char *mtab_opts)
+ unsigned long flags, char *string_flags, int useMtab, int fakeIt,
+ char *mtab_opts, int whineOnErrors)
{
- int status = 0;
-
- char buf[255];
+ int status = 0;
#if defined BB_FEATURE_USE_PROCFS
- if (strcmp(filesystemType, "auto") == 0) {
- FILE *f = fopen ("/proc/filesystems", "r");
-
- if (f == NULL)
- return( FALSE);
-
- while (fgets (buf, sizeof (buf), f) != NULL) {
- filesystemType = buf;
- if (*filesystemType == '\t') { // Not a nodev filesystem
-
- // Add NULL termination to each line
- while (*filesystemType && *filesystemType != '\n')
- filesystemType++;
- *filesystemType = '\0';
-
- filesystemType = buf;
- filesystemType++; // hop past tab
-
- status = do_mount (blockDevice, directory, filesystemType,
- flags | MS_MGC_VAL, string_flags, useMtab,
- fakeIt, mtab_opts);
- if (status == 0)
- break;
- }
- }
- fclose (f);
- } else
-#endif
- {
- status = do_mount (blockDevice, directory, filesystemType,
- flags | MS_MGC_VAL, string_flags, useMtab,
- fakeIt, mtab_opts);
- }
-
- if (status) {
- fprintf (stderr, "Mounting %s on %s failed: %s\n",
- blockDevice, directory, strerror(errno));
- return (FALSE);
- }
- return (TRUE);
-}
-
-extern int mount_main (int argc, char **argv)
-{
- char string_flags_buf[1024]="";
- char *string_flags = string_flags_buf;
- char *extra_opts = string_flags_buf;
- unsigned long flags = 0;
- char *filesystemType = "auto";
- char *device = NULL;
- char *directory = NULL;
- int all = FALSE;
- int fakeIt = FALSE;
- int useMtab = TRUE;
- int i;
-
- /* Only compiled in if BB_MTAB is not defined */
- whine_if_fstab_is_missing();
-
- if (argc == 1) {
- FILE *mountTable = setmntent (mtab_file, "r");
- if (mountTable) {
- struct mntent *m;
- while ((m = getmntent (mountTable)) != 0) {
- struct fstab* fstabItem;
- char *blockDevice = m->mnt_fsname;
- /* Note that if /etc/fstab is missing, libc can't fix up /dev/root for us */
- if (strcmp (blockDevice, "/dev/root") == 0) {
- fstabItem = getfsfile ("/");
- if (fstabItem != NULL)
- blockDevice = fstabItem->fs_spec;
+ char buf[255];
+ if (strcmp(filesystemType, "auto") == 0) {
+ FILE *f = fopen("/proc/filesystems", "r");
+
+ if (f == NULL)
+ return (FALSE);
+
+ while (fgets(buf, sizeof(buf), f) != NULL) {
+ filesystemType = buf;
+ if (*filesystemType == '\t') { // Not a nodev filesystem
+
+ // Add NULL termination to each line
+ while (*filesystemType && *filesystemType != '\n')
+ filesystemType++;
+ *filesystemType = '\0';
+
+ filesystemType = buf;
+ filesystemType++; // hop past tab
+
+ status = do_mount(blockDevice, directory, filesystemType,
+ flags | MS_MGC_VAL, string_flags,
+ useMtab, fakeIt, mtab_opts);
+ if (status == TRUE)
+ break;
+ }
}
- printf ("%s on %s type %s (%s)\n", blockDevice, m->mnt_dir,
- m->mnt_type, m->mnt_opts);
- }
- endmntent (mountTable);
- } else {
- perror(mtab_file);
- }
- exit( TRUE);
- }
-
-
- /* Parse options */
- i = --argc;
- argv++;
- while (i > 0 && **argv) {
- if (**argv == '-') {
- char *opt = *argv;
- while (i>0 && *++opt) switch (*opt) {
- case 'o':
- if (--i == 0) {
- goto goodbye;
- }
- parse_mount_options (*(++argv), &flags, string_flags);
- break;
- case 'r':
- flags |= MS_RDONLY;
- break;
- case 't':
- if (--i == 0) {
- goto goodbye;
+ fclose(f);
+ } else
+#endif
+#if defined BB_FEATURE_USE_DEVPS_PATCH
+ 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;
}
- filesystemType = *(++argv);
- break;
- case 'w':
- flags &= ~MS_RDONLY;
- break;
- case 'a':
- all = TRUE;
- break;
-#ifdef BB_MTAB
- case 'f':
- fakeIt = TRUE;
- break;
- case 'n':
- useMtab = FALSE;
- break;
+ free( fslist);
+ close(fd);
+ } else
#endif
- case 'v':
- case 'h':
- case '-':
- goto goodbye;
- }
- } else {
- if (device == NULL)
- device=*argv;
- else if (directory == NULL)
- directory=*argv;
- else {
- goto goodbye;
- }
+ {
+ status = do_mount(blockDevice, directory, filesystemType,
+ flags | MS_MGC_VAL, string_flags, useMtab,
+ fakeIt, mtab_opts);
}
- i--;
- argv++;
- }
- if (all == TRUE) {
- struct mntent *m;
- FILE *f = setmntent ("/etc/fstab", "r");
-
- if (f == NULL) {
- perror("/etc/fstab");
- exit( FALSE);
- }
- while ((m = getmntent (f)) != NULL) {
- // If the file system isn't noauto, and isn't mounted on /,
- // and isn't swap or nfs, then mount it
- if ((!strstr (m->mnt_opts, "noauto")) &&
- (m->mnt_dir[1] != '\0') &&
- (!strstr (m->mnt_type, "swap")) &&
- (!strstr (m->mnt_type, "nfs")))
- {
- flags = 0;
- *string_flags = '\0';
- parse_mount_options(m->mnt_opts, &flags, string_flags);
- mount_one (m->mnt_fsname, m->mnt_dir, m->mnt_type,
- flags, string_flags, useMtab, fakeIt, extra_opts);
- }
- }
- endmntent (f);
- } else {
- if (device && directory) {
-#ifdef BB_NFSMOUNT
- if (strcmp(filesystemType, "nfs") == 0) {
- if (nfsmount(device, directory, &flags, &extra_opts, &string_flags, 1) != 0)
- exit(FALSE);
- }
-#endif
- exit (mount_one (device, directory, filesystemType,
- flags, string_flags, useMtab, fakeIt, extra_opts));
- } else {
- goto goodbye;
+ if (status == FALSE && whineOnErrors == TRUE) {
+ if (whineOnErrors == TRUE) {
+ fprintf(stderr, "Mounting %s on %s failed: %s\n",
+ blockDevice, directory, strerror(errno));
+ }
+ return (FALSE);
}
- }
- exit( TRUE);
-
-goodbye:
- usage( mount_usage);
+ return (TRUE);
}
-#if defined BB_FEATURE_MOUNT_LOOP
-static int set_loop(const char *device, const char *file, int offset, int *loopro)
+extern int mount_main(int argc, char **argv)
{
- struct loop_info loopinfo;
- int fd, ffd, mode;
-
- mode = *loopro ? O_RDONLY : O_RDWR;
- if ((ffd = open (file, mode)) < 0 && !*loopro
- && (errno != EROFS || (ffd = open (file, mode = O_RDONLY)) < 0)) {
- perror (file);
- return 1;
+ char string_flags_buf[1024] = "";
+ char *string_flags = string_flags_buf;
+ char *extra_opts = string_flags_buf;
+ unsigned long flags = 0;
+ char *filesystemType = "auto";
+ char *device = NULL;
+ char *directory = NULL;
+ int all = FALSE;
+ int fakeIt = FALSE;
+ int useMtab = TRUE;
+ int i;
+
+#if defined BB_FEATURE_USE_DEVPS_PATCH
+ 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);
+ }
+ /* Don't bother to close files or free memory. Exit
+ * does that automagically, so we can save a few bytes */
+#if 0
+ free( mntentlist);
+ close(fd);
+#endif
+ exit(TRUE);
}
- if ((fd = open (device, mode)) < 0) {
- close(ffd);
- perror (device);
- return 1;
+#else
+ if (argc == 1) {
+ FILE *mountTable = setmntent(mtab_file, "r");
+
+ if (mountTable) {
+ struct mntent *m;
+
+ while ((m = getmntent(mountTable)) != 0) {
+ char *blockDevice = m->mnt_fsname;
+ if (strcmp(blockDevice, "/dev/root") == 0) {
+ find_real_root_device_name( blockDevice);
+ }
+ printf("%s on %s type %s (%s)\n", blockDevice, m->mnt_dir,
+ m->mnt_type, m->mnt_opts);
+ }
+ endmntent(mountTable);
+ } else {
+ perror(mtab_file);
+ }
+ exit(TRUE);
}
- *loopro = (mode == O_RDONLY);
-
- memset(&loopinfo, 0, sizeof(loopinfo));
- strncpy(loopinfo.lo_name, file, LO_NAME_SIZE);
- loopinfo.lo_name[LO_NAME_SIZE-1] = 0;
-
- loopinfo.lo_offset = offset;
+#endif
- loopinfo.lo_encrypt_key_size = 0;
- if (ioctl(fd, LOOP_SET_FD, ffd) < 0) {
- perror("ioctl: LOOP_SET_FD");
- exit(1);
+ /* Parse options */
+ i = --argc;
+ argv++;
+ while (i > 0 && **argv) {
+ if (**argv == '-') {
+ char *opt = *argv;
+
+ while (i > 0 && *++opt)
+ switch (*opt) {
+ case 'o':
+ if (--i == 0) {
+ goto goodbye;
+ }
+ parse_mount_options(*(++argv), &flags, string_flags);
+ break;
+ case 'r':
+ flags |= MS_RDONLY;
+ break;
+ case 't':
+ if (--i == 0) {
+ goto goodbye;
+ }
+ filesystemType = *(++argv);
+ break;
+ case 'w':
+ flags &= ~MS_RDONLY;
+ break;
+ case 'a':
+ all = TRUE;
+ break;
+ case 'f':
+ fakeIt = TRUE;
+ break;
+#ifdef BB_MTAB
+ case 'n':
+ useMtab = FALSE;
+ break;
+#endif
+ case 'v':
+ break; /* ignore -v */
+ case 'h':
+ case '-':
+ goto goodbye;
+ }
+ } else {
+ if (device == NULL)
+ device = *argv;
+ else if (directory == NULL)
+ directory = *argv;
+ else {
+ goto goodbye;
+ }
+ }
+ i--;
+ argv++;
}
- if (ioctl(fd, LOOP_SET_STATUS, &loopinfo) < 0) {
- (void) ioctl(fd, LOOP_CLR_FD, 0);
- perror("ioctl: LOOP_SET_STATUS");
- exit(1);
+
+ if (all == TRUE) {
+ struct mntent *m;
+ FILE *f = setmntent("/etc/fstab", "r");
+
+ if (f == NULL)
+ fatalError( "\nCannot read /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
+ if ((!strstr(m->mnt_opts, "noauto")) &&
+ (!strstr(m->mnt_type, "swap")) &&
+ (!strstr(m->mnt_type, "nfs"))) {
+ flags = 0;
+ *string_flags = '\0';
+ parse_mount_options(m->mnt_opts, &flags, string_flags);
+ /* If the directory is /, try to remount
+ * with the options specified in fstab */
+ if (m->mnt_dir[0] == '/' && m->mnt_dir[1] == '\0') {
+ flags |= MS_REMOUNT;
+ }
+ if (mount_one(m->mnt_fsname, m->mnt_dir, m->mnt_type,
+ flags, string_flags, useMtab, fakeIt,
+ extra_opts, FALSE))
+ {
+ /* Try again, but this time try a remount */
+ mount_one(m->mnt_fsname, m->mnt_dir, m->mnt_type,
+ flags|MS_REMOUNT, string_flags, useMtab, fakeIt,
+ extra_opts, TRUE);
+ }
+ }
+ }
+ endmntent(f);
+ } else {
+ if (device && directory) {
+#ifdef BB_NFSMOUNT
+ if (strcmp(filesystemType, "nfs") == 0) {
+ if (nfsmount
+ (device, directory, &flags, &extra_opts, &string_flags,
+ 1) != 0)
+ exit(FALSE);
+ }
+#endif
+ exit(mount_one(device, directory, filesystemType,
+ flags, string_flags, useMtab, fakeIt,
+ extra_opts, TRUE));
+ } else {
+ goto goodbye;
+ }
}
- close(fd);
- close(ffd);
- return 0;
-}
+ exit(TRUE);
-static char *find_unused_loop_device (void)
-{
- char dev[20];
- int i, fd, somedev = 0, someloop = 0;
- struct stat statbuf;
- struct loop_info loopinfo;
-
- for(i = 0; i < 256; i++) {
- sprintf(dev, "/dev/loop%d", i);
- if (stat (dev, &statbuf) == 0 && S_ISBLK(statbuf.st_mode)) {
- somedev++;
- fd = open (dev, O_RDONLY);
- if (fd >= 0) {
- if(ioctl (fd, LOOP_GET_STATUS, &loopinfo) == 0)
- someloop++; /* in use */
- else if (errno == ENXIO) {
- close (fd);
- return strdup(dev); /* probably free */
- }
- close (fd);
- }
- continue;
- }
- if (i >= 7)
- break;
- }
- return NULL;
+ goodbye:
+ usage(mount_usage);
}
-#endif /* BB_FEATURE_MOUNT_LOOP */
projects / oweals / busybox.git / blobdiff