diff options
author | Ben Lindstrom <mouring@eviladmin.org> | 2001-06-10 17:24:51 +0000 |
---|---|---|
committer | Ben Lindstrom <mouring@eviladmin.org> | 2001-06-10 17:24:51 +0000 |
commit | 68c3ce1075a6a29c5ff351a01ce0784999a0e051 (patch) | |
tree | ff998f19f04076e788ec66f5b8006ba59a6d9570 /openbsd-compat/dirname.c | |
parent | d1aed9c0579d3de30cd7b4c0eecf6eee660668ed (diff) |
- (bal) NeXT/MacOS X lack libgen.h and dirname(). Patch by Mark Miller
<markm@swoon.net>
Diffstat (limited to 'openbsd-compat/dirname.c')
-rw-r--r-- | openbsd-compat/dirname.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/openbsd-compat/dirname.c b/openbsd-compat/dirname.c new file mode 100644 index 000000000..c29082673 --- /dev/null +++ b/openbsd-compat/dirname.c | |||
@@ -0,0 +1,81 @@ | |||
1 | /* $OpenBSD: dirname.c,v 1.4 1999/05/30 17:10:30 espie Exp $ */ | ||
2 | |||
3 | /* | ||
4 | * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com> | ||
5 | * All rights reserved. | ||
6 | * | ||
7 | * Redistribution and use in source and binary forms, with or without | ||
8 | * modification, are permitted provided that the following conditions | ||
9 | * are met: | ||
10 | * 1. Redistributions of source code must retain the above copyright | ||
11 | * notice, this list of conditions and the following disclaimer. | ||
12 | * 2. Redistributions in binary form must reproduce the above copyright | ||
13 | * notice, this list of conditions and the following disclaimer in the | ||
14 | * documentation and/or other materials provided with the distribution. | ||
15 | * 3. The name of the author may not be used to endorse or promote products | ||
16 | * derived from this software without specific prior written permission. | ||
17 | * | ||
18 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, | ||
19 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY | ||
20 | * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL | ||
21 | * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
22 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
23 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | ||
24 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | ||
25 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | ||
26 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | ||
27 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
28 | */ | ||
29 | |||
30 | #include "includes.h" | ||
31 | #ifndef HAVE_DIRNAME | ||
32 | |||
33 | #if defined(LIBC_SCCS) && !defined(lint) | ||
34 | static char rcsid[] = "$OpenBSD: dirname.c,v 1.4 1999/05/30 17:10:30 espie Exp $"; | ||
35 | #endif /* LIBC_SCCS and not lint */ | ||
36 | |||
37 | #include <errno.h> | ||
38 | #include <string.h> | ||
39 | #include <sys/param.h> | ||
40 | |||
41 | char * | ||
42 | dirname(path) | ||
43 | const char *path; | ||
44 | { | ||
45 | static char bname[MAXPATHLEN]; | ||
46 | register const char *endp; | ||
47 | |||
48 | /* Empty or NULL string gets treated as "." */ | ||
49 | if (path == NULL || *path == '\0') { | ||
50 | (void)strcpy(bname, "."); | ||
51 | return(bname); | ||
52 | } | ||
53 | |||
54 | /* Strip trailing slashes */ | ||
55 | endp = path + strlen(path) - 1; | ||
56 | while (endp > path && *endp == '/') | ||
57 | endp--; | ||
58 | |||
59 | /* Find the start of the dir */ | ||
60 | while (endp > path && *endp != '/') | ||
61 | endp--; | ||
62 | |||
63 | /* Either the dir is "/" or there are no slashes */ | ||
64 | if (endp == path) { | ||
65 | (void)strcpy(bname, *endp == '/' ? "/" : "."); | ||
66 | return(bname); | ||
67 | } else { | ||
68 | do { | ||
69 | endp--; | ||
70 | } while (endp > path && *endp == '/'); | ||
71 | } | ||
72 | |||
73 | if (endp - path + 1 > sizeof(bname)) { | ||
74 | errno = ENAMETOOLONG; | ||
75 | return(NULL); | ||
76 | } | ||
77 | (void)strncpy(bname, path, endp - path + 1); | ||
78 | bname[endp - path + 1] = '\0'; | ||
79 | return(bname); | ||
80 | } | ||
81 | #endif | ||