Docs: Add "API Overview" section to guestfs(3) manpage.

[libguestfs.git] / daemon / dir.c

diff --git a/daemon/dir.c b/daemon/dir.c
index 7892682..a8f066f 100644 (file)
--- a/daemon/dir.c
+++ b/daemon/dir.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
@@ -30,7 +30,7 @@
 #include "actions.h"
 
 int
-do_rmdir (const char *path)
+do_rmdir (char *path)
 {
   int r;
 
@@ -54,9 +54,9 @@ do_rmdir (const char *path)
  * do stupid stuff, who are we to try to stop them?
  */
 int
-do_rm_rf (const char *path)
+do_rm_rf (char *path)
 {
-  int r, len;
+  int r;
   char *buf, *err;
 
   NEED_ROOT (-1);
@@ -67,16 +67,13 @@ do_rm_rf (const char *path)
     return -1;
   }
 
-  len = strlen (path) + 9;
-  buf = malloc (len);
+  buf = sysroot_path (path);
   if (buf == NULL) {
     reply_with_perror ("malloc");
     return -1;
   }
 
-  snprintf (buf, len, "/sysroot%s", path);
-
-  r = command (NULL, &err, "rm", "-rf", buf);
+  r = command (NULL, &err, "rm", "-rf", buf, NULL);
   free (buf);
 
   /* rm -rf is never supposed to fail.  I/O errors perhaps? */
@@ -92,7 +89,7 @@ do_rm_rf (const char *path)
 }
 
 int
-do_mkdir (const char *path)
+do_mkdir (char *path)
 {
   int r;
 
@@ -117,10 +114,21 @@ recursive_mkdir (const char *path)
   int loop = 0;
   int r;
   char *ppath, *p;
+  struct stat buf;
 
  again:
   r = mkdir (path, 0777);
   if (r == -1) {
+    if (errno == EEXIST) {     /* Something exists here, might not be a dir. */
+      r = lstat (path, &buf);
+      if (r == -1) return -1;
+      if (!S_ISDIR (buf.st_mode)) {
+       errno = ENOTDIR;
+       return -1;
+      }
+      return 0;                        /* OK - directory exists here already. */
+    }
+
     if (!loop && errno == ENOENT) {
       loop = 1;                        /* Stops it looping forever. */
 
@@ -147,7 +155,7 @@ recursive_mkdir (const char *path)
 }
 
 int
-do_mkdir_p (const char *path)
+do_mkdir_p (char *path)
 {
   int r;
 
@@ -165,3 +173,58 @@ do_mkdir_p (const char *path)
 
   return 0;
 }
+
+int
+do_is_dir (char *path)
+{
+  int r;
+  struct stat buf;
+
+  NEED_ROOT (-1);
+  ABS_PATH (path, -1);
+
+  CHROOT_IN;
+  r = lstat (path, &buf);
+  CHROOT_OUT;
+
+  if (r == -1) {
+    if (errno != ENOENT && errno != ENOTDIR) {
+      reply_with_perror ("stat: %s", path);
+      return -1;
+    }
+    else
+      return 0;                        /* Not a directory. */
+  }
+
+  return S_ISDIR (buf.st_mode);
+}
+
+char *
+do_mkdtemp (char *template)
+{
+  char *r;
+
+  NEED_ROOT (NULL);
+  ABS_PATH (template, NULL);
+
+  CHROOT_IN;
+  r = mkdtemp (template);
+  CHROOT_OUT;
+
+  if (r == NULL) {
+    reply_with_perror ("mkdtemp: %s", template);
+    return NULL;
+  }
+
+  /* The caller will free template AND try to free the return value,
+   * so we must make a copy here.
+   */
+  if (r == template) {
+    r = strdup (template);
+    if (r == NULL) {
+      reply_with_perror ("strdup");
+      return NULL;
+    }
+  }
+  return r;
+}