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https://github.com/libguestfs/libguestfs.git
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72cfaff5c5
Automated using this command: perl -pi.bak -e 's/(20[012][0-9])-20[12][01234]/$1-2025/g' `git ls-files`
110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
/* libguestfs - the guestfsd daemon
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* Copyright (C) 2009-2025 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <dirent.h>
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#include <limits.h>
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#include <sys/stat.h>
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#include "c-ctype.h"
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#include "daemon.h"
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#include "actions.h"
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#define GUESTFSDIR "/dev/disk/guestfs"
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char **
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do_list_disk_labels (void)
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{
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DIR *dir = NULL;
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struct dirent *d;
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CLEANUP_FREE_STRINGSBUF DECLARE_STRINGSBUF (ret);
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dir = opendir (GUESTFSDIR);
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if (!dir) {
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if (errno == ENOENT) {
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/* The directory does not exist, and usually this happens when
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* there are no labels set. In this case, act as if the directory
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* was empty.
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*/
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return empty_list ();
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}
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reply_with_perror ("opendir: %s", GUESTFSDIR);
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return NULL;
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}
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while (errno = 0, (d = readdir (dir)) != NULL) {
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CLEANUP_FREE char *path = NULL;
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char *rawdev;
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if (d->d_name[0] == '.')
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continue;
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if (asprintf (&path, "%s/%s", GUESTFSDIR, d->d_name) == -1) {
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reply_with_perror ("asprintf");
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goto error;
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}
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rawdev = realpath (path, NULL);
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if (rawdev == NULL) {
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reply_with_perror ("realpath: %s", path);
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goto error;
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}
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if (add_string (&ret, d->d_name) == -1) {
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free (rawdev);
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goto error;
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}
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if (add_string_nodup (&ret, rawdev) == -1)
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goto error;
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}
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/* Check readdir didn't fail */
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if (errno != 0) {
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reply_with_perror ("readdir: %s", GUESTFSDIR);
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goto error;
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}
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/* Close the directory handle */
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if (closedir (dir) == -1) {
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reply_with_perror ("closedir: %s", GUESTFSDIR);
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dir = NULL;
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goto error;
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}
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dir = NULL;
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if (end_stringsbuf (&ret) == -1)
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goto error;
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return take_stringsbuf (&ret); /* caller frees */
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error:
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if (dir)
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closedir (dir);
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return NULL;
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}
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