Commit | Line | Data |
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252b5132 RH |
1 | /* Emulate getcwd using getwd. |
2 | This function is in the public domain. */ | |
3 | ||
4 | /* | |
5 | NAME | |
6 | getcwd -- get absolute pathname for current working directory | |
7 | ||
8 | SYNOPSIS | |
9 | char *getcwd (char pathname[len], len) | |
10 | ||
11 | DESCRIPTION | |
12 | Copy the absolute pathname for the current working directory into | |
13 | the supplied buffer and return a pointer to the buffer. If the | |
14 | current directory's path doesn't fit in LEN characters, the result | |
15 | is NULL and errno is set. | |
16 | ||
17 | BUGS | |
18 | Emulated via the getwd() call, which is reasonable for most | |
19 | systems that do not have getcwd(). | |
20 | ||
21 | */ | |
22 | ||
23 | #include "config.h" | |
24 | ||
25 | #ifdef HAVE_SYS_PARAM_H | |
26 | #include <sys/param.h> | |
27 | #endif | |
28 | #include <errno.h> | |
29 | ||
30 | extern char *getwd (); | |
31 | extern int errno; | |
32 | ||
33 | #ifndef MAXPATHLEN | |
34 | #define MAXPATHLEN 1024 | |
35 | #endif | |
36 | ||
37 | char * | |
38 | getcwd (buf, len) | |
39 | char *buf; | |
40 | int len; | |
41 | { | |
42 | char ourbuf[MAXPATHLEN]; | |
43 | char *result; | |
44 | ||
45 | result = getwd (ourbuf); | |
46 | if (result) { | |
47 | if (strlen (ourbuf) >= len) { | |
48 | errno = ERANGE; | |
49 | return 0; | |
50 | } | |
51 | strcpy (buf, ourbuf); | |
52 | } | |
53 | return buf; | |
54 | } |