mirror of
https://github.com/libguestfs/libguestfs.git
synced 2026-03-21 22:53:37 +00:00
131 lines
2.8 KiB
C
131 lines
2.8 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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static int
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sfdisk (const char *device, int n, int cyls, int heads, int sectors,
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char * const* const lines)
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{
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FILE *fp;
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char buf[256];
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int i;
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IS_DEVICE (device, -1);
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strcpy (buf, "/sbin/sfdisk --no-reread");
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if (n > 0)
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sprintf (buf + strlen (buf), " -N %d", n);
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if (cyls)
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sprintf (buf + strlen (buf), " -C %d", cyls);
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if (heads)
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sprintf (buf + strlen (buf), " -H %d", heads);
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if (sectors)
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sprintf (buf + strlen (buf), " -S %d", sectors);
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/* Safe because of IS_DEVICE above: */
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sprintf (buf + strlen (buf), " %s", device);
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fp = popen (buf, "w");
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if (fp == NULL) {
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reply_with_perror (buf);
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return -1;
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}
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for (i = 0; lines[i] != NULL; ++i) {
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if (fprintf (fp, "%s\n", lines[i]) < 0) {
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reply_with_perror (buf);
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fclose (fp);
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return -1;
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}
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}
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if (fclose (fp) == EOF) {
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reply_with_perror (buf);
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fclose (fp);
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return -1;
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}
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return 0;
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}
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int
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do_sfdisk (const char *device, int cyls, int heads, int sectors,
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char * const* const lines)
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{
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return sfdisk (device, 0, cyls, heads, sectors, lines);
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}
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int
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do_sfdisk_N (const char *device, int n, int cyls, int heads, int sectors,
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const char *line)
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{
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const char *lines[2] = { line, NULL };
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return sfdisk (device, n, cyls, heads, sectors, lines);
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}
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static char *
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sfdisk_flag (const char *device, const char *flag)
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{
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char *out, *err;
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int r;
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IS_DEVICE (device, NULL);
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r = command (&out, &err, "/sbin/sfdisk", flag, device, NULL);
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if (r == -1) {
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reply_with_error ("sfdisk: %s: %s", device, err);
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free (out);
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free (err);
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return NULL;
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}
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free (err);
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return out; /* caller frees */
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}
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char *
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do_sfdisk_l (const char *device)
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{
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return sfdisk_flag (device, "-l");
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}
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char *
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do_sfdisk_kernel_geometry (const char *device)
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{
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return sfdisk_flag (device, "-g");
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}
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char *
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do_sfdisk_disk_geometry (const char *device)
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{
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return sfdisk_flag (device, "-G");
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}
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