*
*/
-#include "internal.h"
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#if defined BB_FEATURE_USE_DEVPS_PATCH
#include <linux/devmtab.h> /* For Erik's nifty devmtab device driver */
#endif
-
-
-#define MS_MGC_VAL 0xc0ed0000 /* Magic number indicatng "new" flags */
-#define MS_RDONLY 1 /* Mount read-only */
-#define MS_NOSUID 2 /* Ignore suid and sgid bits */
-#define MS_NODEV 4 /* Disallow access to device special files */
-#define MS_NOEXEC 8 /* Disallow program execution */
-#define MS_SYNCHRONOUS 16 /* Writes are synced at once */
-#define MS_REMOUNT 32 /* Alter flags of a mounted FS */
-#define MS_MANDLOCK 64 /* Allow mandatory locks on an FS */
-#define S_QUOTA 128 /* Quota initialized for file/directory/symlink */
-#define S_APPEND 256 /* Append-only file */
-#define S_IMMUTABLE 512 /* Immutable file */
-#define MS_NOATIME 1024 /* Do not update access times. */
-#define MS_NODIRATIME 2048 /* Do not update directory access times */
-
+#include "busybox.h"
+
+enum {
+ MS_MGC_VAL = 0xc0ed0000, /* Magic number indicatng "new" flags */
+ MS_RDONLY = 1, /* Mount read-only */
+ MS_NOSUID = 2, /* Ignore suid and sgid bits */
+ MS_NODEV = 4, /* Disallow access to device special files */
+ MS_NOEXEC = 8, /* Disallow program execution */
+ MS_SYNCHRONOUS = 16, /* Writes are synced at once */
+ MS_REMOUNT = 32, /* Alter flags of a mounted FS */
+ MS_MANDLOCK = 64, /* Allow mandatory locks on an FS */
+ S_QUOTA = 128, /* Quota initialized for file/directory/symlink */
+ S_APPEND = 256, /* Append-only file */
+ S_IMMUTABLE = 512, /* Immutable file */
+ MS_NOATIME = 1024, /* Do not update access times. */
+ MS_NODIRATIME = 2048, /* Do not update directory access times */
+};
#if defined BB_FEATURE_MOUNT_LOOP
extern int umount (__const char *__special_file);
extern int umount2 (__const char *__special_file, int __flags);
+#include <sys/syscall.h>
+#include <linux/unistd.h>
+static int sysfs( int option, unsigned int fs_index, char * buf);
+_syscall3(int, sysfs, int, option, unsigned int, fs_index, char *, buf);
+
extern const char mtab_file[]; /* Defined in utility.c */
char *mtab_opts)
{
int status = 0;
+#if defined BB_FEATURE_MOUNT_LOOP
char *lofile = NULL;
+#endif
if (fakeIt == FALSE)
{
#if defined BB_FEATURE_MOUNT_LOOP
if (use_loop==TRUE) {
int loro = flags & MS_RDONLY;
- char *lofile = specialfile;
+
+ lofile = specialfile;
specialfile = find_unused_loop_device();
if (specialfile == NULL) {
- errorMsg("Could not find a spare loop device\n");
- return (FALSE);
+ error_msg_and_die("Could not find a spare loop device");
}
if (set_loop(specialfile, lofile, 0, &loro)) {
- errorMsg("Could not setup loop device\n");
- return (FALSE);
+ error_msg_and_die("Could not setup loop device");
}
if (!(flags & MS_RDONLY) && loro) { /* loop is ro, but wanted rw */
- errorMsg("WARNING: loop device is read-only\n");
+ error_msg("WARNING: loop device is read-only");
flags &= ~MS_RDONLY;
}
}
#endif
status = mount(specialfile, dir, filesystemtype, flags, string_flags);
+ if (errno == EROFS) {
+ error_msg("%s is write-protected, mounting read-only", specialfile);
+ status = mount(specialfile, dir, filesystemtype, flags |= MS_RDONLY, string_flags);
+ }
}
#endif
if (errno == EPERM) {
- fatalError("permission denied. Are you root?\n");
+ error_msg_and_die("permission denied. Are you root?");
}
return (FALSE);
}
}
-int
+static int
mount_one(char *blockDevice, char *directory, char *filesystemType,
unsigned long flags, char *string_flags, int useMtab, int fakeIt,
char *mtab_opts, int whineOnErrors)
{
int status = 0;
-#if defined BB_FEATURE_USE_PROCFS
- 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
-
+ static const char *strings[] = { "tmpfs", "shm", "proc", "ramfs", "devpts", 0 };
+ const char** nodevfss;
+ const int num_of_filesystems = sysfs(3, 0, 0);
+ char buf[255];
+ int i=0;
+
+ filesystemType=buf;
+
+ while(i < num_of_filesystems) {
+ sysfs(2, i++, filesystemType);
+ for (nodevfss = strings; *nodevfss; nodevfss++) {
+ if (!strcmp(filesystemType, *nodevfss)) {
+ break;
+ }
+ }
+ if (!*nodevfss) {
status = do_mount(blockDevice, directory, filesystemType,
- flags | MS_MGC_VAL, string_flags,
- useMtab, fakeIt, mtab_opts);
+ flags | MS_MGC_VAL, string_flags,
+ useMtab, fakeIt, mtab_opts);
if (status == TRUE)
break;
}
}
- 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;
- }
- free( fslist);
- close(fd);
- } else
-#endif
- {
+ } else {
status = do_mount(blockDevice, directory, filesystemType,
- flags | MS_MGC_VAL, string_flags, useMtab,
- fakeIt, mtab_opts);
+ flags | MS_MGC_VAL, string_flags, useMtab,
+ fakeIt, mtab_opts);
}
if (status == FALSE) {
if (whineOnErrors == TRUE) {
- errorMsg("Mounting %s on %s failed: %s\n",
- blockDevice, directory, strerror(errno));
+ perror_msg("Mounting %s on %s failed", blockDevice, directory);
}
return (FALSE);
}
int fakeIt = FALSE;
int useMtab = TRUE;
int i;
- int rc = FALSE;
+ int rc = EXIT_FAILURE;
int fstabmount = FALSE;
#if defined BB_FEATURE_USE_DEVPS_PATCH
/* open device */
fd = open(device, O_RDONLY);
if (fd < 0)
- fatalError("open failed for `%s': %s\n", device, strerror (errno));
+ perror_msg_and_die("open failed for `%s'", device);
/* 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));
+ perror_msg_and_die( "\nDEVMTAB_COUNT_MOUNTS");
+ mntentlist = (struct k_mntent *) xcalloc ( 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));
+ perror_msg_and_die( "\nDEVMTAB_GET_MOUNTS");
for( i = 0 ; i < numfilesystems ; i++) {
- fprintf( stdout, "%s %s %s %s %d %d\n", mntentlist[i].mnt_fsname,
+ printf( "%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);
#endif
- exit(TRUE);
+ return EXIT_SUCCESS;
}
#else
if (argc == 1) {
}
endmntent(mountTable);
} else {
- perror(mtab_file);
+ perror_msg_and_die("%s", mtab_file);
}
- exit(TRUE);
+ return EXIT_SUCCESS;
}
#endif
fstabmount = TRUE;
if (f == NULL)
- fatalError( "\nCannot read /etc/fstab: %s\n", strerror (errno));
+ perror_msg_and_die( "\nCannot read /etc/fstab");
while ((m = getmntent(f)) != NULL) {
if (all == FALSE && directory == NULL && (
directory = strdup(m->mnt_dir);
filesystemType = strdup(m->mnt_type);
singlemount:
+ string_flags = strdup(string_flags);
+ rc = EXIT_SUCCESS;
#ifdef BB_NFSMOUNT
if (strchr(device, ':') != NULL)
filesystemType = "nfs";
if (strcmp(filesystemType, "nfs") == 0) {
- rc = nfsmount (device, directory, &flags, &extra_opts, &string_flags, 1)
- if ( rc != 0) {
- fatalError("nfsmount failed: %s\n", strerror(errno));
- rc = FALSE;
+ if (nfsmount (device, directory, &flags, &extra_opts,
+ &string_flags, 1)) {
+ perror_msg("nfsmount failed");
+ rc = EXIT_FAILURE;
}
- } else
+ }
#endif
- rc = mount_one(device, directory, filesystemType, flags,
- string_flags, useMtab, fakeIt, extra_opts, TRUE);
+ if (!mount_one(device, directory, filesystemType, flags,
+ string_flags, useMtab, fakeIt, extra_opts, TRUE))
+ rc = EXIT_FAILURE;
if (all == FALSE)
break;
-
- rc = TRUE; // Always return 0 for 'all'
}
if (fstabmount == TRUE)
endmntent(f);
if (all == FALSE && fstabmount == TRUE && directory == NULL)
fprintf(stderr, "Can't find %s in /etc/fstab\n", device);
- exit(rc);
+ return rc;
}
goto singlemount;
- exit(FALSE);
-
goodbye:
- usage(mount_usage);
+ show_usage();
}
projects / oweals / busybox.git / blobdiff