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d7ce7006 | 1 | /** @file\r |
2 | \r | |
0c1992fb | 3 | Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>\r |
4 | This program and the accompanying materials are licensed and made available under\r | |
5 | the terms and conditions of the BSD License that accompanies this distribution.\r | |
6 | The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | \r | |
d7ce7006 | 12 | * Copyright (c) 1997, 2002 The NetBSD Foundation, Inc.\r |
13 | * All rights reserved.\r | |
14 | *\r | |
15 | * This code is derived from software contributed to The NetBSD Foundation\r | |
16 | * by Klaus Klein and Jason R. Thorpe.\r | |
17 | *\r | |
18 | * Redistribution and use in source and binary forms, with or without\r | |
19 | * modification, are permitted provided that the following conditions\r | |
20 | * are met:\r | |
21 | * 1. Redistributions of source code must retain the above copyright\r | |
22 | * notice, this list of conditions and the following disclaimer.\r | |
23 | * 2. Redistributions in binary form must reproduce the above copyright\r | |
24 | * notice, this list of conditions and the following disclaimer in the\r | |
25 | * documentation and/or other materials provided with the distribution.\r | |
26 | *\r | |
27 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS\r | |
28 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED\r | |
29 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR\r | |
30 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS\r | |
31 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r | |
32 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r | |
33 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r | |
34 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r | |
35 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r | |
36 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r | |
37 | * POSSIBILITY OF SUCH DAMAGE.\r | |
38 | \r | |
39 | NetBSD: dirname.c,v 1.10 2008/05/10 22:39:40 christos Exp\r | |
40 | */\r | |
41 | #include <LibConfig.h>\r | |
d7ce7006 | 42 | #include <sys/cdefs.h>\r |
43 | \r | |
d7ce7006 | 44 | #include <limits.h>\r |
0c1992fb | 45 | #include <ctype.h>\r |
d7ce7006 | 46 | #include <string.h>\r |
47 | \r | |
48 | #ifdef __weak_alias\r | |
49 | __weak_alias(dirname,_dirname)\r | |
50 | #endif\r | |
51 | \r | |
0c1992fb | 52 | #ifdef HAVE_DIRNAME\r |
d7ce7006 | 53 | char *\r |
54 | dirname(char *path)\r | |
55 | {\r | |
56 | static char singledot[] = ".";\r | |
57 | static char result[PATH_MAX];\r | |
58 | const char *lastp;\r | |
59 | size_t len;\r | |
60 | \r | |
61 | /*\r | |
62 | * If `path' is a null pointer or points to an empty string,\r | |
63 | * return a pointer to the string ".".\r | |
64 | */\r | |
65 | if ((path == NULL) || (*path == '\0'))\r | |
66 | return (singledot);\r | |
67 | \r | |
68 | /* Strip trailing slashes, if any. */\r | |
69 | lastp = path + strlen(path) - 1;\r | |
0c1992fb | 70 | while (lastp != path && isDirSep(*lastp))\r |
d7ce7006 | 71 | lastp--;\r |
72 | \r | |
73 | /* Terminate path at the last occurence of '/'. */\r | |
74 | do {\r | |
0c1992fb | 75 | if (isDirSep(*lastp)) {\r |
d7ce7006 | 76 | /* Strip trailing slashes, if any. */\r |
0c1992fb | 77 | while (lastp != path && isDirSep(*lastp))\r |
d7ce7006 | 78 | lastp--;\r |
79 | \r | |
0c1992fb | 80 | /* ...and copy the result into the result buffer.\r |
81 | We make sure that there will be room for the terminating NUL\r | |
82 | and for a final '/', if necessary.\r | |
83 | */\r | |
d7ce7006 | 84 | len = (lastp - path) + 1 /* last char */;\r |
0c1992fb | 85 | if (len > (PATH_MAX - 2))\r |
86 | len = PATH_MAX - 2;\r | |
d7ce7006 | 87 | \r |
88 | memcpy(result, path, len);\r | |
0c1992fb | 89 | if(*lastp == ':') { /* Have we stripped off all except the Volume name? */\r |
90 | if(isDirSep(lastp[1])) { /* Was ...":/"... so we want the root of the volume. */\r | |
91 | result[len++] = '/';\r | |
92 | }\r | |
93 | else {\r | |
94 | result[len++] = '.';\r | |
95 | }\r | |
96 | }\r | |
d7ce7006 | 97 | result[len] = '\0';\r |
d7ce7006 | 98 | return (result);\r |
99 | }\r | |
100 | } while (--lastp >= path);\r | |
101 | \r | |
102 | /* No /'s found, return a pointer to the string ".". */\r | |
103 | return (singledot);\r | |
104 | }\r | |
105 | #endif\r |