build: remove trailing blanks, enable syntax-check

[libguestfs.git] / daemon / devsparts.c

diff --git a/daemon/devsparts.c b/daemon/devsparts.c
index 83e4bb9..1970e7d 100644 (file)
--- a/daemon/devsparts.c
+++ b/daemon/devsparts.c
@@ -1,5 +1,5 @@
 /* libguestfs - the guestfsd daemon
- * Copyright (C) 2009 Red Hat Inc. 
+ * 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
@@ -46,11 +46,24 @@ do_list_devices (void)
 
   while ((d = readdir (dir)) != NULL) {
     if (strncmp (d->d_name, "sd", 2) == 0 ||
-       strncmp (d->d_name, "hd", 2) == 0) {
+        strncmp (d->d_name, "hd", 2) == 0 ||
+        strncmp (d->d_name, "vd", 2) == 0) {
       snprintf (buf, sizeof buf, "/dev/%s", d->d_name);
+
+      /* 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.
+       */
+      int fd = open (buf, O_RDONLY);
+      if (fd == -1) {
+        perror (buf);
+        continue;
+      }
+      close (fd);
+
       if (add_string (&r, &size, &alloc, buf) == -1) {
-       closedir (dir);
-       return NULL;
+        closedir (dir);
+        return NULL;
       }
     }
   }
@@ -87,7 +100,21 @@ do_list_partitions (void)
 
   while ((d = readdir (dir)) != NULL) {
     if (strncmp (d->d_name, "sd", 2) == 0 ||
-       strncmp (d->d_name, "hd", 2) == 0) {
+        strncmp (d->d_name, "hd", 2) == 0 ||
+        strncmp (d->d_name, "vd", 2) == 0) {
+      snprintf (buf, sizeof buf, "/dev/%s", d->d_name);
+
+      /* 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.
+       */
+      int fd = open (buf, O_RDONLY);
+      if (fd == -1) {
+        perror (buf);
+        continue;
+      }
+      close (fd);
+
       strncpy (devname, d->d_name, sizeof devname);
       devname[sizeof devname - 1] = '\0';
 
@@ -95,26 +122,26 @@ do_list_partitions (void)
 
       dir2 = opendir (buf);
       if (!dir2) {
-       reply_with_perror ("opendir: %s", buf);
-       free_stringslen (r, size);
-       return NULL;
+        reply_with_perror ("opendir: %s", buf);
+        free_stringslen (r, size);
+        return NULL;
       }
       while ((d = readdir (dir2)) != NULL) {
-       if (strncmp (d->d_name, devname, strlen (devname)) == 0) {
-         snprintf (buf, sizeof buf, "/dev/%s", d->d_name);
-
-         if (add_string (&r, &size, &alloc, buf) == -1) {
-           closedir (dir2);
-           closedir (dir);
-           return NULL;
-         }
-       }
+        if (strncmp (d->d_name, devname, strlen (devname)) == 0) {
+          snprintf (buf, sizeof buf, "/dev/%s", d->d_name);
+
+          if (add_string (&r, &size, &alloc, buf) == -1) {
+            closedir (dir2);
+            closedir (dir);
+            return NULL;
+          }
+        }
       }
 
       if (closedir (dir2) == -1) {
-       reply_with_perror ("closedir: /sys/block/%s", devname);
-       free_stringslen (r, size);
-       return NULL;
+        reply_with_perror ("closedir: /sys/block/%s", devname);
+        free_stringslen (r, size);
+        return NULL;
       }
     }
   }