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c84142e8 UD |
1 | /* Copyright (C) 1991, 1996, 1997 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Library General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Library General Public | |
15 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
28f540f4 | 18 | |
28f540f4 RM |
19 | #include <stddef.h> |
20 | #include <errno.h> | |
21 | #include <unistd.h> | |
22 | #include <string.h> | |
23 | #include <confstr.h> | |
24 | ||
25 | /* If BUF is not NULL, fill in at most LEN characters of BUF | |
26 | with the value corresponding to NAME. Return the number | |
27 | of characters required to hold NAME's entire value. */ | |
28 | size_t | |
c4029823 UD |
29 | confstr (name, buf, len) |
30 | int name; | |
31 | char *buf; | |
32 | size_t len; | |
28f540f4 | 33 | { |
c4029823 | 34 | const char *string; |
28f540f4 RM |
35 | size_t string_len; |
36 | ||
37 | switch (name) | |
38 | { | |
39 | case _CS_PATH: | |
40 | { | |
c4029823 | 41 | static const char cs_path[] = CS_PATH; |
28f540f4 | 42 | string = cs_path; |
c4029823 | 43 | string_len = sizeof (cs_path); |
28f540f4 RM |
44 | } |
45 | break; | |
46 | ||
cbdee279 | 47 | case _CS_XBS5_ILP32_OFFBIG_CFLAGS: |
dfd2257a | 48 | case _CS_LFS_CFLAGS: |
cbdee279 | 49 | #if defined _XBS5_ILP32_OFF32 && !defined _XBS5_ILP32_OFFBIG |
af6f3906 UD |
50 | /* Signal that we want the new ABI. */ |
51 | { | |
86187531 | 52 | static const char file_offset[] = "-D_FILE_OFFSET_BITS=64"; |
af6f3906 UD |
53 | string = file_offset; |
54 | string_len = sizeof (file_offset); | |
55 | } | |
56 | break; | |
cbdee279 | 57 | #endif |
af6f3906 | 58 | |
dfd2257a UD |
59 | case _CS_LFS_LINTFLAGS: |
60 | case _CS_LFS_LDFLAGS: | |
61 | case _CS_LFS_LIBS: | |
62 | case _CS_LFS64_CFLAGS: | |
63 | case _CS_LFS64_LINTFLAGS: | |
64 | case _CS_LFS64_LDFLAGS: | |
65 | case _CS_LFS64_LIBS: | |
86187531 UD |
66 | |
67 | case _CS_XBS5_ILP32_OFF32_CFLAGS: | |
68 | case _CS_XBS5_ILP32_OFF32_LDFLAGS: | |
69 | case _CS_XBS5_ILP32_OFF32_LIBS: | |
70 | case _CS_XBS5_ILP32_OFF32_LINTFLAGS: | |
86187531 UD |
71 | case _CS_XBS5_ILP32_OFFBIG_LDFLAGS: |
72 | case _CS_XBS5_ILP32_OFFBIG_LIBS: | |
73 | case _CS_XBS5_ILP32_OFFBIG_LINTFLAGS: | |
74 | case _CS_XBS5_LP64_OFF64_CFLAGS: | |
75 | case _CS_XBS5_LP64_OFF64_LDFLAGS: | |
76 | case _CS_XBS5_LP64_OFF64_LIBS: | |
77 | case _CS_XBS5_LP64_OFF64_LINTFLAGS: | |
78 | case _CS_XBS5_LPBIG_OFFBIG_CFLAGS: | |
79 | case _CS_XBS5_LPBIG_OFFBIG_LDFLAGS: | |
80 | case _CS_XBS5_LPBIG_OFFBIG_LIBS: | |
81 | case _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS: | |
af6f3906 | 82 | /* GNU libc does not require special actions to use LFS functions. */ |
dfd2257a UD |
83 | string = ""; |
84 | string_len = 1; | |
85 | break; | |
86 | ||
28f540f4 | 87 | default: |
c4029823 | 88 | __set_errno (EINVAL); |
28f540f4 RM |
89 | return 0; |
90 | } | |
91 | ||
92 | if (buf != NULL) | |
c4029823 | 93 | (void) strncpy (buf, string, len); |
28f540f4 RM |
94 | return string_len; |
95 | } |