1 /* libguestfs - the guestfsd daemon
2 * Copyright (C) 2009 Red Hat Inc.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
33 sfdisk (char *device, int n, int cyls, int heads, int sectors,
34 char * const* const lines)
40 IS_DEVICE (device, -1);
42 strcpy (buf, "/sbin/sfdisk");
44 sprintf (buf + strlen (buf), " -N %d", n);
46 sprintf (buf + strlen (buf), " -C %d", cyls);
48 sprintf (buf + strlen (buf), " -H %d", heads);
50 sprintf (buf + strlen (buf), " -S %d", sectors);
51 /* Safe because of IS_DEVICE above: */
52 sprintf (buf + strlen (buf), " %s", device);
57 fp = popen (buf, "w");
59 reply_with_perror (buf);
63 for (i = 0; lines[i] != NULL; ++i) {
64 if (fprintf (fp, "%s\n", lines[i]) < 0) {
65 reply_with_perror (buf);
71 if (fclose (fp) == EOF) {
72 reply_with_perror (buf);
81 do_sfdisk (char *device, int cyls, int heads, int sectors,
84 return sfdisk (device, 0, cyls, heads, sectors, lines);
88 do_sfdisk_N (char *device, int n, int cyls, int heads, int sectors,
91 const char *lines[2] = { line, NULL };
93 return sfdisk (device, n, cyls, heads, sectors, lines);
97 sfdisk_flag (char *device, const char *flag)
102 IS_DEVICE (device, NULL);
104 r = command (&out, &err, "/sbin/sfdisk", flag, device, NULL);
106 reply_with_error ("sfdisk: %s: %s", device, err);
114 return out; /* caller frees */
118 do_sfdisk_l (char *device)
120 return sfdisk_flag (device, "-l");
124 do_sfdisk_kernel_geometry (char *device)
126 return sfdisk_flag (device, "-g");
130 do_sfdisk_disk_geometry (char *device)
132 return sfdisk_flag (device, "-G");