X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=daemon%2Fdevsparts.c;h=1781def3feb9ac876011328a490def77d2ff7b63;hp=76852cca972c3c69cdb1fa797d61143dd2fb2f01;hb=fea2e61ac1129a2f01036d4dfbee8947f3d00886;hpb=a61bccecfba1c9501910d28de24bac945e95001f

diff --git a/daemon/devsparts.c b/daemon/devsparts.c
index 76852cc..1781def 100644
--- a/daemon/devsparts.c
+++ b/daemon/devsparts.c
@@ -26,6 +26,8 @@
 #include <dirent.h>
 #include <sys/stat.h>
 
+#include "c-ctype.h"
+
 #include "daemon.h"
 #include "actions.h"
 
@@ -53,13 +55,17 @@ foreach_block_device (block_dev_func_t func)
     struct dirent *d = readdir(dir);
     if(NULL == d) break;
 
-    if (strncmp (d->d_name, "sd", 2) == 0 ||
-        strncmp (d->d_name, "hd", 2) == 0 ||
-        strncmp (d->d_name, "vd", 2) == 0 ||
-        strncmp (d->d_name, "sr", 2) == 0) {
+    if (STREQLEN (d->d_name, "sd", 2) ||
+        STREQLEN (d->d_name, "hd", 2) ||
+        STREQLEN (d->d_name, "vd", 2) ||
+        STREQLEN (d->d_name, "sr", 2)) {
       char dev_path[256];
       snprintf (dev_path, sizeof dev_path, "/dev/%s", d->d_name);
 
+      /* Ignore the root device. */
+      if (is_root_device (dev_path))
+        continue;
+
       /* RHBZ#514505: Some versions of qemu <= 0.10 add a
        * CD-ROM device even though we didn't request it.  Try to
        * detect this by seeing if the device contains media.
@@ -153,7 +159,7 @@ add_partitions(const char *device,
   errno = 0;
   struct dirent *d;
   while ((d = readdir (dir)) != NULL) {
-    if (strncmp (d->d_name, device, strlen (device)) == 0) {
+    if (STREQLEN (d->d_name, device, strlen (device))) {
       char part[256];
       snprintf (part, sizeof part, "/dev/%s", d->d_name);
 
@@ -186,3 +192,28 @@ do_list_partitions (void)
 {
   return foreach_block_device(add_partitions);
 }
+
+char *
+do_part_to_dev (const char *part)
+{
+  int err = 1;
+  size_t n = strlen (part);
+
+  while (n >= 1 && c_isdigit (part[n-1])) {
+    err = 0;
+    n--;
+  }
+
+  if (err) {
+    reply_with_error ("device name is not a partition");
+    return NULL;
+  }
+
+  char *r = strndup (part, n);
+  if (r == NULL) {
+    reply_with_perror ("strdup");
+    return NULL;
+  }
+
+  return r;
+}