Add: pvresize, sfdisk-N, sfdisk-l, sfdisk-kernel-geomtry, sfdisk-disk-geometry commands. Pass --no-reread flag to sfdisk.

1 files changed, 130 insertions, 0 deletions

diff --git a/daemon/sfdisk.c b/daemon/sfdisk.c
new file mode 100644
index 00000000..9d7a220f
--- /dev/null
+++ b/daemon/sfdisk.c
@@ -0,0 +1,130 @@
+/* libguestfs - the guestfsd daemon
+ * Copyright (C) 2009 Red Hat Inc. 
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <sys/stat.h>
+
+#include "daemon.h"
+#include "actions.h"
+
+static int
+sfdisk (const char *device, int n, int cyls, int heads, int sectors,
+	char * const* const lines)
+{
+  FILE *fp;
+  char buf[256];
+  int i;
+
+  IS_DEVICE (device, -1);
+
+  strcpy (buf, "/sbin/sfdisk --no-reread");
+  if (n > 0)
+    sprintf (buf + strlen (buf), " -N %d", n);
+  if (cyls)
+    sprintf (buf + strlen (buf), " -C %d", cyls);
+  if (heads)
+    sprintf (buf + strlen (buf), " -H %d", heads);
+  if (sectors)
+    sprintf (buf + strlen (buf), " -S %d", sectors);
+  /* Safe because of IS_DEVICE above: */
+  sprintf (buf + strlen (buf), " %s", device);
+
+  fp = popen (buf, "w");
+  if (fp == NULL) {
+    reply_with_perror (buf);
+    return -1;
+  }
+
+  for (i = 0; lines[i] != NULL; ++i) {
+    if (fprintf (fp, "%s\n", lines[i]) < 0) {
+      reply_with_perror (buf);
+      fclose (fp);
+      return -1;
+    }
+  }
+
+  if (fclose (fp) == EOF) {
+    reply_with_perror (buf);
+    fclose (fp);
+    return -1;
+  }
+
+  return 0;
+}
+
+int
+do_sfdisk (const char *device, int cyls, int heads, int sectors,
+	   char * const* const lines)
+{
+  return sfdisk (device, 0, cyls, heads, sectors, lines);
+}
+
+int
+do_sfdisk_N (const char *device, int n, int cyls, int heads, int sectors,
+	     const char *line)
+{
+  const char *lines[2] = { line, NULL };
+
+  return sfdisk (device, n, cyls, heads, sectors, lines);
+}
+
+static char *
+sfdisk_flag (const char *device, const char *flag)
+{
+  char *out, *err;
+  int r;
+
+  IS_DEVICE (device, NULL);
+
+  r = command (&out, &err, "/sbin/sfdisk", flag, device, NULL);
+  if (r == -1) {
+    reply_with_error ("sfdisk: %s: %s", device, err);
+    free (out);
+    free (err);
+    return NULL;
+  }
+
+  free (err);
+
+  return out;			/* caller frees */
+}
+
+char *
+do_sfdisk_l (const char *device)
+{
+  return sfdisk_flag (device, "-l");
+}
+
+char *
+do_sfdisk_kernel_geometry (const char *device)
+{
+  return sfdisk_flag (device, "-g");
+}
+
+char *
+do_sfdisk_disk_geometry (const char *device)
+{
+  return sfdisk_flag (device, "-G");
+}