update copyright year

[oweals/busybox.git] / libbb / concat_path_file.c

diff --git a/libbb/concat_path_file.c b/libbb/concat_path_file.c
index e62b99ef689a39a9bea136dfc7589e25097d8953..fb533547eb28fce402900240f7fe6f2a366c0556 100644 (file)
--- a/libbb/concat_path_file.c
+++ b/libbb/concat_path_file.c
@@ -2,44 +2,28 @@
 /*
  * Utility routines.
  *
- * Copyright (C) many different people.  If you wrote this, please
- * acknowledge your work.
+ * Copyright (C) many different people.
+ * If you wrote this, please acknowledge your work.
  *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
-/* concatenate path and file name to new allocation buffer,
- * not addition '/' if path name already have '/'
-*/
+/* Concatenate path and filename to new allocated buffer.
+ * Add '/' only as needed (no duplicate // are produced).
+ * If path is NULL, it is assumed to be "/".
+ * filename should not be NULL.
+ */
 
-#include <string.h>
 #include "libbb.h"
 
-extern char *concat_path_file(const char *path, const char *filename)
+char* FAST_FUNC concat_path_file(const char *path, const char *filename)
 {
-       char *outbuf;
        char *lc;
 
        if (!path)
-           path="";
+               path = "";
        lc = last_char_is(path, '/');
        while (*filename == '/')
                filename++;
-       outbuf = xmalloc(strlen(path)+strlen(filename)+1+(lc==NULL));
-       sprintf(outbuf, "%s%s%s", path, (lc==NULL)? "/" : "", filename);
-
-       return outbuf;
+       return xasprintf("%s%s%s", path, (lc==NULL ? "/" : ""), filename);
 }