diff options
Diffstat (limited to 'libc/bionic/dirname.c')
-rw-r--r-- | libc/bionic/dirname.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/libc/bionic/dirname.c b/libc/bionic/dirname.c new file mode 100644 index 0000000..8a1db90 --- /dev/null +++ b/libc/bionic/dirname.c @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2008 The Android Open Source Project + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +#include <sys/cdefs.h> + +#include <errno.h> +#include <libgen.h> +#include <stdlib.h> +#include <string.h> +#include <sys/param.h> + +char* +dirname(const char* path) +{ + static char* bname = NULL; + int ret; + + if (bname == NULL) { + bname = (char *)malloc(MAXPATHLEN); + if (bname == NULL) + return(NULL); + } + + ret = dirname_r(path, bname, MAXPATHLEN); + return (ret < 0) ? NULL : bname; +} |