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d7ce7006 | 1 | /** @file\r |
2 | \r | |
3 | * Copyright (c) 1997, 2002 The NetBSD Foundation, Inc.\r | |
4 | * All rights reserved.\r | |
5 | *\r | |
6 | * This code is derived from software contributed to The NetBSD Foundation\r | |
7 | * by Klaus Klein and Jason R. Thorpe.\r | |
8 | *\r | |
9 | * Redistribution and use in source and binary forms, with or without\r | |
10 | * modification, are permitted provided that the following conditions\r | |
11 | * are met:\r | |
12 | * 1. Redistributions of source code must retain the above copyright\r | |
13 | * notice, this list of conditions and the following disclaimer.\r | |
14 | * 2. Redistributions in binary form must reproduce the above copyright\r | |
15 | * notice, this list of conditions and the following disclaimer in the\r | |
16 | * documentation and/or other materials provided with the distribution.\r | |
17 | *\r | |
18 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS\r | |
19 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED\r | |
20 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR\r | |
21 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS\r | |
22 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r | |
23 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r | |
24 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r | |
25 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r | |
26 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r | |
27 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r | |
28 | * POSSIBILITY OF SUCH DAMAGE.\r | |
29 | \r | |
30 | NetBSD: dirname.c,v 1.10 2008/05/10 22:39:40 christos Exp\r | |
31 | */\r | |
32 | #include <LibConfig.h>\r | |
33 | \r | |
34 | #include <sys/cdefs.h>\r | |
35 | \r | |
36 | //#include "namespace.h"\r | |
37 | //#include <libgen.h>\r | |
38 | #include <limits.h>\r | |
39 | #include <string.h>\r | |
40 | \r | |
41 | #ifdef __weak_alias\r | |
42 | __weak_alias(dirname,_dirname)\r | |
43 | #endif\r | |
44 | \r | |
45 | #if !HAVE_DIRNAME\r | |
46 | char *\r | |
47 | dirname(char *path)\r | |
48 | {\r | |
49 | static char singledot[] = ".";\r | |
50 | static char result[PATH_MAX];\r | |
51 | const char *lastp;\r | |
52 | size_t len;\r | |
53 | \r | |
54 | /*\r | |
55 | * If `path' is a null pointer or points to an empty string,\r | |
56 | * return a pointer to the string ".".\r | |
57 | */\r | |
58 | if ((path == NULL) || (*path == '\0'))\r | |
59 | return (singledot);\r | |
60 | \r | |
61 | /* Strip trailing slashes, if any. */\r | |
62 | lastp = path + strlen(path) - 1;\r | |
63 | while (lastp != path && *lastp == '/')\r | |
64 | lastp--;\r | |
65 | \r | |
66 | /* Terminate path at the last occurence of '/'. */\r | |
67 | do {\r | |
68 | if (*lastp == '/') {\r | |
69 | /* Strip trailing slashes, if any. */\r | |
70 | while (lastp != path && *lastp == '/')\r | |
71 | lastp--;\r | |
72 | \r | |
73 | /* ...and copy the result into the result buffer. */\r | |
74 | len = (lastp - path) + 1 /* last char */;\r | |
75 | if (len > (PATH_MAX - 1))\r | |
76 | len = PATH_MAX - 1;\r | |
77 | \r | |
78 | memcpy(result, path, len);\r | |
79 | result[len] = '\0';\r | |
80 | \r | |
81 | return (result);\r | |
82 | }\r | |
83 | } while (--lastp >= path);\r | |
84 | \r | |
85 | /* No /'s found, return a pointer to the string ".". */\r | |
86 | return (singledot);\r | |
87 | }\r | |
88 | #endif\r |