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authorRichard Jones <rjones@trick.home.annexia.org>2009-06-22 08:20:32 +0100
committerRichard Jones <rjones@trick.home.annexia.org>2009-06-22 08:20:32 +0100
commit05c34c1c1479bb07b31cfbf912743a8cf014a636 (patch)
treee3e32ce95e36da74aaf06f4af1dbc6fe36b08740 /daemon/glob.c
parent4211c7a258debd236017a19c70965bc1b3658edb (diff)
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Add 'glob-expand' command.
Diffstat (limited to 'daemon/glob.c')
-rw-r--r--daemon/glob.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/daemon/glob.c b/daemon/glob.c
new file mode 100644
index 00000000..f39832ea
--- /dev/null
+++ b/daemon/glob.c
@@ -0,0 +1,63 @@
+/* libguestfs - the guestfsd daemon
+ * 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <glob.h>
+
+#include "daemon.h"
+#include "actions.h"
+
+char **
+do_glob_expand (char *pattern)
+{
+ int r;
+ glob_t buf;
+
+ NEED_ROOT (NULL);
+ ABS_PATH (pattern, NULL); /* Required so chroot can be used. */
+
+ /* glob(3) in glibc never calls chdir, so this seems to be safe: */
+ CHROOT_IN;
+ r = glob (pattern, GLOB_MARK|GLOB_BRACE, NULL, &buf);
+ CHROOT_OUT;
+
+ if (r == GLOB_NOMATCH) { /* Return an empty list instead of an error. */
+ char **rv;
+
+ rv = malloc (sizeof (char *) * 1);
+ rv[0] = NULL;
+ return rv; /* Caller frees. */
+ }
+
+ if (r != 0) {
+ if (errno != 0)
+ reply_with_perror ("glob: %s", pattern);
+ else
+ reply_with_error ("glob failed: %s", pattern);
+ return NULL;
+ }
+
+ /* We take a bit of a liberty here. 'globfree' just frees the
+ * strings in the glob_t structure. We will pass them out directly
+ * and the caller will free them.
+ */
+ return buf.gl_pathv;
+}