mkfs-opts: Add optional sectorsize parameter.

[libguestfs.git] / daemon / mkfs.c

diff --git a/daemon/mkfs.c b/daemon/mkfs.c
index ea9fd7f..353d8fa 100644 (file)
--- a/daemon/mkfs.c
+++ b/daemon/mkfs.c
@@ -33,21 +33,28 @@
 
 /* Takes optional arguments, consult optargs_bitmask. */
 int
-do_mkfs_opts (const char *fstype, const char *device, int blocksize, const char *features)
+do_mkfs_opts (const char *fstype, const char *device, int blocksize,
+              const char *features, int inode, int sectorsize)
 {
   const char *argv[MAX_ARGS];
   size_t i = 0;
   char blocksize_str[32];
+  char inode_str[32];
+  char sectorsize_str[32];
   int r;
   char *err;
 
+  char mke2fs[] = "mke2fs";
+  if (e2prog (mke2fs) == -1)
+    return -1;
+
   /* For ext2/3/4 run the mke2fs program directly.  This is because
    * the mkfs program "eats" some options, in particular the -F
    * option.
    */
   if (STREQ (fstype, "ext2") || STREQ (fstype, "ext3") ||
       STREQ (fstype, "ext4"))
-    argv[i++] = "mke2fs";
+    argv[i++] = mke2fs;
   else
     argv[i++] = "mkfs";
 
@@ -136,6 +143,39 @@ do_mkfs_opts (const char *fstype, const char *device, int blocksize, const char
      argv[i++] = features;
   }
 
+  if (optargs_bitmask & GUESTFS_MKFS_OPTS_INODE_BITMASK) {
+    if (!STREQ (fstype, "ext2") && !STREQ (fstype, "ext3") &&
+        !STREQ (fstype, "ext4")) {
+      reply_with_error ("inode size (-I) can only be set on ext2/3/4 filesystems");
+      return -1;
+    }
+
+    if (inode <= 0) {
+      reply_with_error ("inode size must be larger than zero");
+      return -1;
+    }
+
+    snprintf (inode_str, sizeof inode_str, "%d", inode);
+    argv[i++] = "-I";
+    argv[i++] = inode_str;
+  }
+
+  if (optargs_bitmask & GUESTFS_MKFS_OPTS_SECTORSIZE_BITMASK) {
+    if (!STREQ (fstype, "ufs")) {
+      reply_with_error ("sector size (-S) can only be set on ufs filesystems");
+      return -1;
+    }
+
+    if (sectorsize <= 0) {
+      reply_with_error ("sector size must be larger than zero");
+      return -1;
+    }
+
+    snprintf (sectorsize_str, sizeof sectorsize_str, "%d", sectorsize);
+    argv[i++] = "-S";
+    argv[i++] = sectorsize_str;
+  }
+
   argv[i++] = device;
   argv[i++] = NULL;
 
@@ -157,12 +197,12 @@ int
 do_mkfs (const char *fstype, const char *device)
 {
   optargs_bitmask = 0;
-  return do_mkfs_opts (fstype, device, 0, 0);
+  return do_mkfs_opts (fstype, device, 0, 0, 0, 0);
 }
 
 int
 do_mkfs_b (const char *fstype, int blocksize, const char *device)
 {
   optargs_bitmask = GUESTFS_MKFS_OPTS_BLOCKSIZE_BITMASK;
-  return do_mkfs_opts (fstype, device, blocksize, 0);
+  return do_mkfs_opts (fstype, device, blocksize, 0, 0, 0);
 }