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author | bigbiff bigbiff <bigbiff@teamw.in> | 2013-01-09 15:09:08 +0100 |
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committer | bigbiff bigbiff <bigbiff@teamw.in> | 2013-01-09 15:09:08 +0100 |
commit | 9c754053b07a724bdd98d039f34899d6a49115b7 (patch) | |
tree | 464885db361a12d83d60cf152142c765562bb92d /libtar/dirname.c | |
parent | Add Samsung TouchWiz decryption (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | libtar/dirname.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/libtar/dirname.c b/libtar/dirname.c new file mode 100644 index 000000000..986db4aa1 --- /dev/null +++ b/libtar/dirname.c @@ -0,0 +1,77 @@ +/* $OpenBSD: dirname.c,v 1.4 1999/05/30 17:10:30 espie Exp $ */ + +/* + * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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. + */ + +#ifndef lint +static char rcsid[] = "$OpenBSD: dirname.c,v 1.4 1999/05/30 17:10:30 espie Exp $"; +#endif /* not lint */ + +#include <errno.h> +#include <string.h> +#include <sys/param.h> + +char * +openbsd_dirname(path) + const char *path; +{ + static char bname[MAXPATHLEN]; + register const char *endp; + + /* Empty or NULL string gets treated as "." */ + if (path == NULL || *path == '\0') { + (void)strcpy(bname, "."); + return(bname); + } + + /* Strip trailing slashes */ + endp = path + strlen(path) - 1; + while (endp > path && *endp == '/') + endp--; + + /* Find the start of the dir */ + while (endp > path && *endp != '/') + endp--; + + /* Either the dir is "/" or there are no slashes */ + if (endp == path) { + (void)strcpy(bname, *endp == '/' ? "/" : "."); + return(bname); + } else { + do { + endp--; + } while (endp > path && *endp == '/'); + } + + if (endp - path + 1 > sizeof(bname)) { + errno = ENAMETOOLONG; + return(NULL); + } + (void)strncpy(bname, path, endp - path + 1); + bname[endp - path + 1] = '\0'; + return(bname); +} |