mirror of
https://github.com/libguestfs/libguestfs.git
synced 2026-03-22 07:03:38 +00:00
fe27753ae5
Should use 'pclose' instead of 'fclose' (although fclose happens to work because of glibc internals). The result of pclose is the exit status of the command, so we need to test this is != 0.
133 lines
2.8 KiB
C
133 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 (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");
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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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if (verbose)
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printf ("%s\n", buf);
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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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pclose (fp);
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return -1;
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}
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}
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if (pclose (fp) != 0) {
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reply_with_error ("%s: external command failed", buf);
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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 (char *device, int cyls, int heads, int sectors,
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char **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 (char *device, int n, int cyls, int heads, int sectors,
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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 (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 (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 (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 (char *device)
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{
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return sfdisk_flag (device, "-G");
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}
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