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Update debian files to support the blkid library, and to fix a number
[tools/e2fsprogs.git] / resize / main.c
index 4f85995..841f4bd 100644 (file)
@@ -1,19 +1,25 @@
 /*
  * main.c --- ext2 resizer main program
  *
- * Copyright (C) 1997 Theodore Ts'o
+ * Copyright (C) 1997, 1998 by Theodore Ts'o and
+ *     PowerQuest, Inc.
+ *
+ * Copyright (C) 1999, 2000, 2001 by Theosore Ts'o
  * 
  * %Begin-Header%
- * All rights reserved.
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
  * %End-Header%
  */
 
 #ifdef HAVE_GETOPT_H
 #include <getopt.h>
+#else
+extern char *optarg;
+extern int optind;
 #endif
 #include <fcntl.h>
-#include <sys/ioctl.h>
-
+#include <sys/stat.h>
 
 #include "resize2fs.h"
 
 
 char *program_name, *device_name;
 
-static volatile void usage (char *prog)
+static void usage (char *prog)
 {
-       fprintf (stderr, "usage: %s [-d debug_flags] [-f] [-F] [-p] device new-size\n", prog);
+       fprintf (stderr, _("usage: %s [-d debug_flags] [-f] [-F] [-p] device [new-size]\n\n"), prog);
+
        exit (1);
 }
 
@@ -43,25 +50,25 @@ static errcode_t resize_progress_func(ext2_resize_t rfs, int pass,
                progress = 0;
                switch (pass) {
                case E2_RSZ_EXTEND_ITABLE_PASS:
-                       label = "Extending the inode table";
+                       label = _("Extending the inode table");
                        break;
                case E2_RSZ_BLOCK_RELOC_PASS:
-                       label = "Relocating blocks";
+                       label = _("Relocating blocks");
                        break;
                case E2_RSZ_INODE_SCAN_PASS:
-                       label = "Scanning inode table";
+                       label = _("Scanning inode table");
                        break;
                case E2_RSZ_INODE_REF_UPD_PASS:
-                       label = "Updating inode references";
+                       label = _("Updating inode references");
                        break;
                case E2_RSZ_MOVE_ITABLE_PASS:
-                       label = "Moving inode table";
+                       label = _("Moving inode table");
                        break;
                default:
-                       label = "Unknown pass?!?";
+                       label = _("Unknown pass?!?");
                        break;
                }
-               printf("Begin pass %d (max = %lu)\n", pass, max);
+               printf(_("Begin pass %d (max = %lu)\n"), pass, max);
                retval = ext2fs_progress_init(&progress, label, 30,
                                              40, max, 0);
                if (retval)
@@ -79,28 +86,28 @@ static errcode_t resize_progress_func(ext2_resize_t rfs, int pass,
        return 0;
 }
 
-static void check_mount(char *device_name)
+static void check_mount(char *device)
 {
        errcode_t       retval;
        int             mount_flags;
 
-       retval = ext2fs_check_if_mounted(device_name, &mount_flags);
+       retval = ext2fs_check_if_mounted(device, &mount_flags);
        if (retval) {
-               com_err("ext2fs_check_if_mount", retval,
-                       "while determining whether %s is mounted.",
-                       device_name);
+               com_err(_("ext2fs_check_if_mount"), retval,
+                       _("while determining whether %s is mounted."),
+                       device);
                return;
        }
        if (!(mount_flags & EXT2_MF_MOUNTED))
                return;
        
-       fprintf(stderr, "%s is mounted; can't resize a "
-               "mounted filesystem!\n\n", device_name);
+       fprintf(stderr, _("%s is mounted; can't resize a "
+               "mounted filesystem!\n\n"), device);
        exit(1);
 }
 
 
-void main (int argc, char ** argv)
+int main (int argc, char ** argv)
 {
        errcode_t       retval;
        ext2_filsys     fs;
@@ -113,15 +120,15 @@ void main (int argc, char ** argv)
        blk_t           max_size = 0;
        io_manager      io_ptr;
        char            *tmp;
-
+       struct stat     st_buf;
+       
        initialize_ext2_error_table();
 
-       fprintf (stderr, "resize2fs %s, %s for EXT2 FS %s, %s\n",
-                E2FSPROGS_VERSION, E2FSPROGS_DATE,
-                EXT2FS_VERSION, EXT2FS_DATE);
+       fprintf (stderr, _("resize2fs %s (%s)\n"),
+                E2FSPROGS_VERSION, E2FSPROGS_DATE);
        if (argc && *argv)
                program_name = *argv;
-       
+
        while ((c = getopt (argc, argv, "d:fFhp")) != EOF) {
                switch (c) {
                case 'h':
@@ -145,11 +152,12 @@ void main (int argc, char ** argv)
        }
        if (optind == argc)
                usage(program_name);
+
        device_name = argv[optind++];
        if (optind < argc) {
                new_size = strtoul(argv[optind++], &tmp, 0);
                if (*tmp) {
-                       com_err(program_name, 0, "bad filesystem size - %s",
+                       com_err(program_name, 0, _("bad filesystem size - %s"),
                                argv[optind - 1]);
                        exit(1);
                }
@@ -160,24 +168,22 @@ void main (int argc, char ** argv)
        check_mount(device_name);
        
        if (flush) {
-#ifdef BLKFLSBUF
                fd = open(device_name, O_RDONLY, 0);
 
                if (fd < 0) {
-                       com_err("open", errno, "while opening %s for flushing",
+                       com_err("open", errno,
+                               _("while opening %s for flushing"),
                                device_name);
                        exit(1);
                }
-               if (ioctl(fd, BLKFLSBUF, 0) < 0) {
-                       com_err("BLKFLSBUF", errno, "while trying to flush %s",
+               retval = ext2fs_sync_device(fd, 1);
+               if (retval) {
+                       com_err(argv[0], retval, 
+                               _("while trying to flush %s"),
                                device_name);
                        exit(1);
                }
                close(fd);
-#else
-               fprintf(stderr, "BLKFLSBUF not supported");
-               exit(1);
-#endif /* BLKFLSBUF */
        }
 
        if (flags & RESIZE_DEBUG_IO) {
@@ -189,12 +195,21 @@ void main (int argc, char ** argv)
        retval = ext2fs_open (device_name, EXT2_FLAG_RW, 0, 0,
                              io_ptr, &fs);
        if (retval) {
-               com_err (program_name, retval, "while trying to open %s",
+               com_err (program_name, retval, _("while trying to open %s"),
                         device_name);
-               printf ("Couldn't find valid filesystem superblock.\n");
+               printf (_("Couldn't find valid filesystem superblock.\n"));
                exit (1);
        }
-
+       /*
+        * Check for compatibility with the feature sets.  We need to
+        * be more stringent than ext2fs_open().
+        */
+       if (fs->super->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) {
+               com_err(program_name, EXT2_ET_UNSUPP_FEATURE,
+                       "(%s)", device_name);
+               exit(1);
+       }
+       
        /*
         * Get the size of the containing partition, and use this for
         * defaults and for making sure the new filesystme doesn't
@@ -204,35 +219,55 @@ void main (int argc, char ** argv)
                                        &max_size);
        if (retval) {
                com_err(program_name, retval,
-                       "while trying to determine filesystem size");
+                       _("while trying to determine filesystem size"));
                exit(1);
        }
        if (!new_size)
                new_size = max_size;
+       /*
+        * If we are resizing a plain file, and it's not big enough,
+        * automatically extend it in a sparse fashion by writing the
+        * last requested block.
+        */
+       if ((new_size > max_size) &&
+           (stat(device_name, &st_buf) == 0) &&
+           S_ISREG(st_buf.st_mode) &&
+           ((tmp = malloc(fs->blocksize)) != 0)) {
+               memset(tmp, 0, fs->blocksize);
+               retval = io_channel_write_blk(fs->io, new_size-1, 1, tmp);
+               if (retval == 0)
+                       max_size = new_size;
+               free(tmp);
+       }
        if (!force && (new_size > max_size)) {
-               fprintf(stderr, "The containing partition (or device)"
+               fprintf(stderr, _("The containing partition (or device)"
                        " is only %d blocks.\nYou requested a new size"
-                       " of %d blocks.\n\n", max_size,
+                       " of %d blocks.\n\n"), max_size,
                        new_size);
                exit(1);
        }
        if (new_size == fs->super->s_blocks_count) {
-               fprintf(stderr, "The filesystem is already %d blocks "
-                       "long.  Nothing to do!\n\n", new_size);
+               fprintf(stderr, _("The filesystem is already %d blocks "
+                       "long.  Nothing to do!\n\n"), new_size);
                exit(0);
        }
-       if (!force && (fs->super->s_lastcheck < fs->super->s_mtime)) {
-               fprintf(stderr, "Please run 'e2fsck -f %s' first.\n\n",
+       if (!force && ((fs->super->s_lastcheck < fs->super->s_mtime) ||
+                      (fs->super->s_state & EXT2_ERROR_FS) ||
+                      ((fs->super->s_state & EXT2_VALID_FS) == 0))) {
+               fprintf(stderr, _("Please run 'e2fsck -f %s' first.\n\n"),
                        device_name);
                exit(1);
        }
-       retval = resize_fs(fs, new_size, flags,
+       retval = resize_fs(fs, &new_size, flags,
                           ((flags & RESIZE_PERCENT_COMPLETE) ?
                            resize_progress_func : 0));
        if (retval) {
-               com_err(program_name, retval, "while trying to resize %s",
+               com_err(program_name, retval, _("while trying to resize %s"),
                        device_name);
                ext2fs_close (fs);
+               exit(1);
        }
-       exit (0);
+       printf(_("The filesystem on %s is now %d blocks long.\n\n"),
+              device_name, new_size);
+       return (0);
 }