diff options
Diffstat (limited to 'usr/src/cmd/ntfsprogs/ntfslabel.c')
-rw-r--r-- | usr/src/cmd/ntfsprogs/ntfslabel.c | 412 |
1 files changed, 0 insertions, 412 deletions
diff --git a/usr/src/cmd/ntfsprogs/ntfslabel.c b/usr/src/cmd/ntfsprogs/ntfslabel.c deleted file mode 100644 index 6c753015a9..0000000000 --- a/usr/src/cmd/ntfsprogs/ntfslabel.c +++ /dev/null @@ -1,412 +0,0 @@ -/** - * ntfslabel - Part of the Linux-NTFS project. - * - * Copyright (c) 2002 Matthew J. Fanto - * Copyright (c) 2002-2005 Anton Altaparmakov - * Copyright (c) 2002-2003 Richard Russon - * - * This utility will display/change the label on an NTFS partition. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program (in the main directory of the Linux-NTFS - * distribution in the file COPYING); if not, write to the Free Software - * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include "config.h" - -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif -#ifdef HAVE_STDIO_H -#include <stdio.h> -#endif -#ifdef HAVE_STRING_H -#include <string.h> -#endif -#ifdef HAVE_ERRNO_H -#include <errno.h> -#endif -#ifdef HAVE_LOCALE_H -#include <locale.h> -#endif -#ifdef HAVE_GETOPT_H -#include <getopt.h> -#endif - -#include "compat.h" -#include "debug.h" -#include "mft.h" -#include "utils.h" -#include "version.h" -#include "logging.h" - -static const char *EXEC_NAME = "ntfslabel"; - -static struct options { - char *device; /* Device/File to work with */ - char *label; /* Set the label to this */ - int quiet; /* Less output */ - int verbose; /* Extra output */ - int force; /* Override common sense */ - int noaction; /* Do not write to disk */ -} opts; - -/** - * version - Print version information about the program - * - * Print a copyright statement and a brief description of the program. - * - * Return: none - */ -static void version(void) -{ - ntfs_log_info("\n%s v%s (libntfs %s) - Display, or set, the label for an " - "NTFS Volume.\n\n", EXEC_NAME, VERSION, - ntfs_libntfs_version()); - ntfs_log_info("Copyright (c)\n"); - ntfs_log_info(" 2002 Matthew J. Fanto\n"); - ntfs_log_info(" 2002-2005 Anton Altaparmakov\n"); - ntfs_log_info(" 2002-2003 Richard Russon\n"); - ntfs_log_info("\n%s\n%s%s\n", ntfs_gpl, ntfs_bugs, ntfs_home); -} - -/** - * usage - Print a list of the parameters to the program - * - * Print a list of the parameters and options for the program. - * - * Return: none - */ -static void usage(void) -{ - ntfs_log_info("\nUsage: %s [options] device [label]\n" - " -n, --no-action Do not write to disk\n" - " -f, --force Use less caution\n" - " -q, --quiet Less output\n" - " -v, --verbose More output\n" - " -V, --version Display version information\n" - " -h, --help Display this help\n\n", - EXEC_NAME); - ntfs_log_info("%s%s\n", ntfs_bugs, ntfs_home); -} - -/** - * parse_options - Read and validate the programs command line - * - * Read the command line, verify the syntax and parse the options. - * This function is very long, but quite simple. - * - * Return: 1 Success - * 0 Error, one or more problems - */ -static int parse_options(int argc, char *argv[]) -{ - static const char *sopt = "-fh?nqvV"; - static const struct option lopt[] = { - { "force", no_argument, NULL, 'f' }, - { "help", no_argument, NULL, 'h' }, - { "no-action", no_argument, NULL, 'n' }, - { "quiet", no_argument, NULL, 'q' }, - { "verbose", no_argument, NULL, 'v' }, - { "version", no_argument, NULL, 'V' }, - { NULL, 0, NULL, 0 }, - }; - - int c = -1; - int err = 0; - int ver = 0; - int help = 0; - int levels = 0; - - opterr = 0; /* We'll handle the errors, thank you. */ - - while ((c = getopt_long(argc, argv, sopt, lopt, NULL)) != -1) { - switch (c) { - case 1: /* A non-option argument */ - if (!err && !opts.device) - opts.device = argv[optind-1]; - else if (!err && !opts.label) - opts.label = argv[optind-1]; - else - err++; - break; - case 'f': - opts.force++; - break; - case 'h': - case '?': - if (strncmp (argv[optind-1], "--log-", 6) == 0) { - if (!ntfs_log_parse_option (argv[optind-1])) - err++; - break; - } - help++; - break; - case 'n': - opts.noaction++; - break; - case 'q': - opts.quiet++; - ntfs_log_clear_levels(NTFS_LOG_LEVEL_QUIET); - break; - case 'v': - opts.verbose++; - ntfs_log_set_levels(NTFS_LOG_LEVEL_VERBOSE); - break; - case 'V': - ver++; - break; - default: - ntfs_log_error("Unknown option '%s'.\n", argv[optind-1]); - err++; - break; - } - } - - /* Make sure we're in sync with the log levels */ - levels = ntfs_log_get_levels(); - if (levels & NTFS_LOG_LEVEL_VERBOSE) - opts.verbose++; - if (!(levels & NTFS_LOG_LEVEL_QUIET)) - opts.quiet++; - - if (help || ver) { - opts.quiet = 0; - } else { - if (opts.device == NULL) { - if (argc > 1) - ntfs_log_error("You must specify a device.\n"); - err++; - } - - if (opts.quiet && opts.verbose) { - ntfs_log_error("You may not use --quiet and --verbose at " - "the same time.\n"); - err++; - } - } - - if (ver) - version(); - if (help || err) - usage(); - - return (!err && !help && !ver); -} - - -/** - * print_label - display the current label of a mounted ntfs partition. - * @dev: device to read the label from - * @mnt_flags: mount flags of the device or 0 if not mounted - * @mnt_point: mount point of the device or NULL - * - * Print the label of the device @dev. - */ -static int print_label(ntfs_volume *vol, unsigned long mnt_flags) -{ - int result = 0; - //XXX significant? - if ((mnt_flags & (NTFS_MF_MOUNTED | NTFS_MF_READONLY)) == - NTFS_MF_MOUNTED) { - ntfs_log_error("%s is mounted read-write, results may be " - "unreliable.\n", opts.device); - result = 1; - } - - ntfs_log_info("%s\n", vol->vol_name); - return result; -} - -/** - * resize_resident_attribute_value - resize a resident attribute - * @m: mft record containing attribute to resize - * @a: attribute record (inside @m) which to resize - * @new_vsize: the new attribute value size to resize the attribute to - * - * Return 0 on success and -1 with errno = ENOSPC if not enough space in the - * mft record. - */ -static int resize_resident_attribute_value(MFT_RECORD *m, ATTR_RECORD *a, - const u32 new_vsize) -{ - int new_alen, new_muse; - - /* New attribute length and mft record bytes used. */ - new_alen = (le16_to_cpu(a->u.res.value_offset) + new_vsize + 7) & ~7; - new_muse = le32_to_cpu(m->bytes_in_use) - le32_to_cpu(a->length) + - new_alen; - /* Check for sufficient space. */ - if ((u32)new_muse > le32_to_cpu(m->bytes_allocated)) { - errno = ENOSPC; - return -1; - } - /* Move attributes behind @a to their new location. */ - memmove((char*)a + new_alen, (char*)a + le32_to_cpu(a->length), - le32_to_cpu(m->bytes_in_use) - ((char*)a - (char*)m) - - le32_to_cpu(a->length)); - /* Adjust @m to reflect change in used space. */ - m->bytes_in_use = cpu_to_le32(new_muse); - /* Adjust @a to reflect new value size. */ - a->length = cpu_to_le32(new_alen); - a->u.res.value_length = cpu_to_le32(new_vsize); - return 0; -} - -/** - * change_label - change the current label on a device - * @dev: device to change the label on - * @mnt_flags: mount flags of the device or 0 if not mounted - * @mnt_point: mount point of the device or NULL - * @label: the new label - * - * Change the label on the device @dev to @label. - */ -static int change_label(ntfs_volume *vol, unsigned long mnt_flags, char *label, BOOL force) -{ - ntfs_attr_search_ctx *ctx; - ntfschar *new_label = NULL; - ATTR_RECORD *a; - int label_len; - int result = 0; - - //XXX significant? - if (mnt_flags & NTFS_MF_MOUNTED) { - /* If not the root fs or mounted read/write, refuse change. */ - if (!(mnt_flags & NTFS_MF_ISROOT) || - !(mnt_flags & NTFS_MF_READONLY)) { - if (!force) { - ntfs_log_error("Refusing to change label on " - "read-%s mounted device %s.\n", - mnt_flags & NTFS_MF_READONLY ? - "only" : "write", opts.device); - return 1; - } - } - } - ctx = ntfs_attr_get_search_ctx(vol->vol_ni, NULL); - if (!ctx) { - ntfs_log_perror("Failed to get attribute search context"); - goto err_out; - } - if (ntfs_attr_lookup(AT_VOLUME_NAME, AT_UNNAMED, 0, 0, 0, NULL, 0, - ctx)) { - if (errno != ENOENT) { - ntfs_log_perror("Lookup of $VOLUME_NAME attribute failed"); - goto err_out; - } - /* The volume name attribute does not exist. Need to add it. */ - a = NULL; - } else { - a = ctx->attr; - if (a->non_resident) { - ntfs_log_error("Error: Attribute $VOLUME_NAME must be " - "resident.\n"); - goto err_out; - } - } - label_len = ntfs_mbstoucs(label, &new_label, 0); - if (label_len == -1) { - ntfs_log_perror("Unable to convert label string to Unicode"); - goto err_out; - } - label_len *= sizeof(ntfschar); - if (label_len > 0x100) { - ntfs_log_error("New label is too long. Maximum %u characters " - "allowed. Truncating excess characters.\n", - (unsigned)(0x100 / sizeof(ntfschar))); - label_len = 0x100; - new_label[label_len / sizeof(ntfschar)] = 0; - } - if (a) { - if (resize_resident_attribute_value(ctx->mrec, a, label_len)) { - ntfs_log_perror("Error resizing resident attribute"); - goto err_out; - } - } else { - /* sizeof(resident attribute record header) == 24 */ - int asize = (24 + label_len + 7) & ~7; - u32 biu = le32_to_cpu(ctx->mrec->bytes_in_use); - if (biu + asize > le32_to_cpu(ctx->mrec->bytes_allocated)) { - errno = ENOSPC; - ntfs_log_perror("Error adding resident attribute"); - goto err_out; - } - a = ctx->attr; - memmove((u8*)a + asize, a, biu - ((u8*)a - (u8*)ctx->mrec)); - ctx->mrec->bytes_in_use = cpu_to_le32(biu + asize); - a->type = AT_VOLUME_NAME; - a->length = cpu_to_le32(asize); - a->non_resident = 0; - a->name_length = 0; - a->name_offset = cpu_to_le16(24); - a->flags = cpu_to_le16(0); - a->instance = ctx->mrec->next_attr_instance; - ctx->mrec->next_attr_instance = cpu_to_le16((le16_to_cpu( - ctx->mrec->next_attr_instance) + 1) & 0xffff); - a->u.res.value_length = cpu_to_le32(label_len); - a->u.res.value_offset = a->name_offset; - a->u.res.resident_flags = 0; - a->u.res.reservedR = 0; - } - memcpy((u8*)a + le16_to_cpu(a->u.res.value_offset), new_label, label_len); - if (!opts.noaction && ntfs_inode_sync(vol->vol_ni)) { - ntfs_log_perror("Error writing MFT Record to disk"); - goto err_out; - } - result = 0; -err_out: - free(new_label); - return result; -} - -/** - * main - Begin here - * - * Start from here. - * - * Return: 0 Success, the program worked - * 1 Error, something went wrong - */ -int main(int argc, char **argv) -{ - unsigned long mnt_flags = 0; - int result = 0; - ntfs_volume *vol; - - ntfs_log_set_handler(ntfs_log_handler_outerr); - - if (!parse_options(argc, argv)) - return 1; - - utils_set_locale(); - - if (!opts.label) - opts.noaction++; - - vol = utils_mount_volume(opts.device, - (opts.noaction ? NTFS_MNT_RDONLY : 0) | - (opts.force ? NTFS_MNT_FORCE : 0)); - if (!vol) - return 1; - - if (opts.label) - result = change_label(vol, mnt_flags, opts.label, opts.force); - else - result = print_label(vol, mnt_flags); - - ntfs_umount(vol, FALSE); - return result; -} - |