build: Add ./configure --disable-fuse option.

[libguestfs.git] / daemon / ls.c

diff --git a/daemon/ls.c b/daemon/ls.c
index 1bea5f1..0af2356 100644 (file)
--- a/daemon/ls.c
+++ b/daemon/ls.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
@@ -23,6 +23,7 @@
 #include <string.h>
 #include <unistd.h>
 #include <fcntl.h>
+#include <dirent.h>
 #include <sys/stat.h>
 
 #include "daemon.h"
@@ -31,35 +32,63 @@
 char **
 do_ls (const char *path)
 {
-  reply_with_error ("ls command is not yet implemented");
-  return NULL;
+  char **r = NULL;
+  int size = 0, alloc = 0;
+  DIR *dir;
+  struct dirent *d;
+
+  CHROOT_IN;
+  dir = opendir (path);
+  CHROOT_OUT;
+
+  if (!dir) {
+    reply_with_perror ("opendir: %s", path);
+    return NULL;
+  }
+
+  while ((d = readdir (dir)) != NULL) {
+    if (STREQ (d->d_name, ".") || STREQ (d->d_name, ".."))
+      continue;
+
+    if (add_string (&r, &size, &alloc, d->d_name) == -1) {
+      closedir (dir);
+      return NULL;
+    }
+  }
+
+  if (add_string (&r, &size, &alloc, NULL) == -1) {
+    closedir (dir);
+    return NULL;
+  }
+
+  if (closedir (dir) == -1) {
+    reply_with_perror ("closedir: %s", path);
+    free_strings (r);
+    return NULL;
+  }
+
+  sort_strings (r, size-1);
+  return r;
 }
 
+/* Because we can't chroot and run the ls command (since 'ls' won't
+ * necessarily exist in the chroot), this command can be used to escape
+ * from the sysroot (eg. 'll /..').  This command is not meant for
+ * serious use anyway, just for quick interactive sessions.
+ */
+
 char *
 do_ll (const char *path)
 {
-  int r, len;
+  int r;
   char *out, *err;
   char *spath;
 
-  if (path[0] != '/') {
-    reply_with_error ("ll: path must start with a / character");
-    return NULL;
-  }
-
-  /* This exposes the /sysroot, because we can't chroot and run the ls
-   * command (since 'ls' won't necessarily exist in the chroot).  This
-   * command is not meant for serious use anyway, just for quick
-   * interactive sessions.  For the same reason, you can also "escape"
-   * the sysroot (eg. 'll /..').
-   */
-  len = strlen (path) + 9;
-  spath = malloc (len);
+  spath = sysroot_path (path);
   if (!spath) {
     reply_with_perror ("malloc");
     return NULL;
   }
-  snprintf (spath, len, "/sysroot%s", path);
 
   r = command (&out, &err, "ls", "-la", spath, NULL);
   free (spath);