mirror of
https://github.com/libguestfs/libguestfs.git
synced 2026-03-22 07:03:38 +00:00
155 lines
3.4 KiB
C
155 lines
3.4 KiB
C
/* libguestfs - the guestfsd daemon
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* Copyright (C) 2009 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., 675 Mass Ave, Cambridge, MA 02139, 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 <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 <sys/stat.h>
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#include "daemon.h"
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#include "actions.h"
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char **
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do_list_devices (void)
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{
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char **r = NULL;
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int size = 0, alloc = 0;
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DIR *dir;
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struct dirent *d;
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char buf[256];
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dir = opendir ("/sys/block");
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if (!dir) {
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reply_with_perror ("opendir: /sys/block");
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return NULL;
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}
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while ((d = readdir (dir)) != NULL) {
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if (strncmp (d->d_name, "sd", 2) == 0 ||
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strncmp (d->d_name, "hd", 2) == 0) {
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snprintf (buf, sizeof buf, "/dev/%s", d->d_name);
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if (add_string (&r, &size, &alloc, buf) == -1) {
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closedir (dir);
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return NULL;
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}
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}
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}
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if (add_string (&r, &size, &alloc, NULL) == -1) {
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closedir (dir);
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return NULL;
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}
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if (closedir (dir) == -1) {
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reply_with_perror ("closedir: /sys/block");
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free_strings (r);
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return NULL;
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}
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sort_strings (r, size-1);
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return r;
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}
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char **
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do_list_partitions (void)
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{
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char **r = NULL;
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int size = 0, alloc = 0;
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DIR *dir, *dir2;
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struct dirent *d;
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char buf[256], devname[256];
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dir = opendir ("/sys/block");
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if (!dir) {
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reply_with_perror ("opendir: /sys/block");
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return NULL;
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}
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while ((d = readdir (dir)) != NULL) {
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if (strncmp (d->d_name, "sd", 2) == 0 ||
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strncmp (d->d_name, "hd", 2) == 0) {
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strncpy (devname, d->d_name, sizeof devname);
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devname[sizeof devname - 1] = '\0';
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snprintf (buf, sizeof buf, "/sys/block/%s", devname);
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dir2 = opendir (buf);
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if (!dir2) {
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reply_with_perror ("opendir: %s", buf);
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free_stringslen (r, size);
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return NULL;
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}
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while ((d = readdir (dir2)) != NULL) {
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if (strncmp (d->d_name, devname, strlen (devname)) == 0) {
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snprintf (buf, sizeof buf, "/dev/%s", d->d_name);
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if (add_string (&r, &size, &alloc, buf) == -1) {
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closedir (dir2);
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closedir (dir);
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return NULL;
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}
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}
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}
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if (closedir (dir2) == -1) {
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reply_with_perror ("closedir: /sys/block/%s", devname);
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free_stringslen (r, size);
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return NULL;
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}
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}
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}
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if (add_string (&r, &size, &alloc, NULL) == -1) {
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closedir (dir);
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return NULL;
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}
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if (closedir (dir) == -1) {
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reply_with_perror ("closedir: /sys/block");
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free_strings (r);
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return NULL;
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}
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sort_strings (r, size-1);
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return r;
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}
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int
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do_mkfs (char *fstype, char *device)
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{
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char *err;
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int r;
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IS_DEVICE (device, -1);
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r = command (NULL, &err, "/sbin/mkfs", "-t", fstype, device, NULL);
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if (r == -1) {
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reply_with_error ("mkfs: %s", err);
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free (err);
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return -1;
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}
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free (err);
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return 0;
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}
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