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comparison src/realpath.c @ 398:74fd4e045ea6 r21-2-29

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Import from CVS: tag r21-2-29
author cvs
date Mon, 13 Aug 2007 11:13:30 +0200
parents 8626e4521993
children a86b2b5e0111
comparison
equal deleted inserted replaced
397:f4aeb21a5bad 398:74fd4e045ea6
20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, 20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */ 21 Boston, MA 02111-1307, USA. */
22 22
23 /* Synched up with: Not in FSF. */ 23 /* Synched up with: Not in FSF. */
24 24
25 #ifdef HAVE_CONFIG_H
26 #include <config.h> 25 #include <config.h>
27 #endif
28 26
29 #include <sys/types.h> 27 #include <sys/types.h>
30 #if defined(HAVE_UNISTD_H) || defined(STDC_HEADERS)
31 #include <unistd.h>
32 #endif
33 #include <stdio.h> 28 #include <stdio.h>
34 #include <string.h> 29 #include <string.h>
30 #include <errno.h>
31 #ifdef HAVE_UNISTD_H
32 #include <unistd.h>
33 #endif
35 #ifdef _POSIX_VERSION 34 #ifdef _POSIX_VERSION
36 #include <limits.h> /* for PATH_MAX */ 35 #include <limits.h> /* for PATH_MAX */
37 #else 36 #else
38 #include <sys/param.h> /* for MAXPATHLEN */ 37 #include <sys/param.h> /* for MAXPATHLEN */
39 #endif 38 #endif
40 #include <errno.h>
41 #ifndef STDC_HEADERS
42 extern int errno;
43 #endif
44 39
45 #ifdef WINDOWSNT 40 #ifdef WINDOWSNT
46 #include <direct.h> 41 #include <direct.h>
47 #endif 42 #endif
48 43
49 #include <sys/stat.h> /* for S_IFLNK */ 44 #include <sys/stat.h> /* for S_IFLNK */
50 45
46 #if !defined (HAVE_GETCWD) && defined (HAVE_GETWD)
47 #undef getcwd
48 #define getcwd(buffer, len) getwd (buffer)
49 #endif
50
51 #ifndef PATH_MAX 51 #ifndef PATH_MAX
52 #ifdef _POSIX_VERSION 52 # if defined (_POSIX_PATH_MAX)
53 #define PATH_MAX _POSIX_PATH_MAX 53 # define PATH_MAX _POSIX_PATH_MAX
54 #else 54 # elif defined (MAXPATHLEN)
55 #ifdef MAXPATHLEN 55 # define PATH_MAX MAXPATHLEN
56 #define PATH_MAX MAXPATHLEN 56 # else
57 #else 57 # define PATH_MAX 1024
58 #define PATH_MAX 1024 58 # endif
59 #endif
60 #endif
61 #endif 59 #endif
62 60
63 #define MAX_READLINKS 32 61 #define MAX_READLINKS 32
64 62
65 #ifdef __STDC__ 63 char * xrealpath (const char *path, char resolved_path []);
66 char *xrealpath(const char *path, char resolved_path []) 64 char *
67 #else 65 xrealpath (const char *path, char resolved_path [])
68 char *xrealpath(path, resolved_path)
69 const char *path;
70 char resolved_path [];
71 #endif
72 { 66 {
73 char copy_path[PATH_MAX]; 67 char copy_path[PATH_MAX];
74 char *new_path = resolved_path; 68 char *new_path = resolved_path;
75 char *max_path; 69 char *max_path;
70 #ifdef S_IFLNK
76 int readlinks = 0; 71 int readlinks = 0;
77 #ifdef S_IFLNK
78 char link_path[PATH_MAX]; 72 char link_path[PATH_MAX];
79 int n; 73 int n;
80 #endif 74 #endif
81 75
82 /* Make a copy of the source path since we may need to modify it. */ 76 /* Make a copy of the source path since we may need to modify it. */
107 ** No drive letter, but a beginning slash? Prepend the drive 101 ** No drive letter, but a beginning slash? Prepend the drive
108 ** letter... 102 ** letter...
109 */ 103 */
110 else if (*path == '/') 104 else if (*path == '/')
111 { 105 {
112 getcwd(new_path, PATH_MAX - 1); 106 getcwd (new_path, PATH_MAX - 1);
113 new_path += 3; 107 new_path += 3;
114 path++; 108 path++;
115 } 109 }
116 110
117 /* 111 /*
118 ** Just a path name, prepend the current directory 112 ** Just a path name, prepend the current directory
119 */ 113 */
120 else 114 else
121 { 115 {
122 getcwd(new_path, PATH_MAX - 1); 116 getcwd (new_path, PATH_MAX - 1);
123 new_path += strlen(new_path); 117 new_path += strlen(new_path);
124 if (new_path[-1] != '/') 118 if (new_path[-1] != '/')
125 *new_path++ = '/'; 119 *new_path++ = '/';
126 } 120 }
127 121
128 #else 122 #else
129 /* If it's a relative pathname use getwd for starters. */ 123 /* If it's a relative pathname use getcwd for starters. */
130 if (*path != '/') 124 if (*path != '/')
131 { 125 {
132 #ifdef HAVE_GETCWD 126 getcwd (new_path, PATH_MAX - 1);
133 getcwd(new_path, PATH_MAX - 1);
134 #else
135 getwd(new_path);
136 #endif
137 new_path += strlen(new_path); 127 new_path += strlen(new_path);
138 if (new_path[-1] != '/') 128 if (new_path[-1] != '/')
139 *new_path++ = '/'; 129 *new_path++ = '/';
140 } 130 }
141 else 131 else