Mercurial > hg > octave-nkf > gnulib-hg
annotate lib/strndup.c @ 2705:e17209e9562d
[!HAVE_DECL_STRNLEN]: Declare strnlen.
| author | Jim Meyering <jim@meyering.net> |
|---|---|
| date | Tue, 04 Jul 2000 17:37:43 +0000 |
| parents | 3e7cc1ecce32 |
| children | 2e7b90348c21 |
| rev | line source |
|---|---|
| 2469 | 1 /* Copyright (C) 1996, 1997, 1998, 2000 Free Software Foundation, Inc. |
| 627 | 2 |
| 2469 | 3 NOTE: The canonical source of this file is maintained with the GNU C Library. |
| 4 Bugs can be reported to bug-glibc@prep.ai.mit.edu. | |
| 627 | 5 |
| 2469 | 6 This program is free software; you can redistribute it and/or modify it |
| 7 under the terms of the GNU General Public License as published by the | |
| 8 Free Software Foundation; either version 2, or (at your option) any | |
| 9 later version. | |
| 630 | 10 |
| 2469 | 11 This program is distributed in the hope that it will be useful, |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 GNU General Public License for more details. | |
| 627 | 15 |
| 2469 | 16 You should have received a copy of the GNU General Public License |
| 17 along with this program; if not, write to the Free Software Foundation, | |
| 18 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
| 627 | 19 |
| 630 | 20 #ifdef HAVE_CONFIG_H |
| 21 # include "config.h" | |
| 22 #endif | |
| 627 | 23 |
|
633
7a867865a82f
(strndup): Include stdio.h and sys/types.h to
Jim Meyering <jim@meyering.net>
parents:
630
diff
changeset
|
24 #include <stdio.h> |
|
7a867865a82f
(strndup): Include stdio.h and sys/types.h to
Jim Meyering <jim@meyering.net>
parents:
630
diff
changeset
|
25 #include <sys/types.h> |
|
7a867865a82f
(strndup): Include stdio.h and sys/types.h to
Jim Meyering <jim@meyering.net>
parents:
630
diff
changeset
|
26 |
| 2469 | 27 #if defined _LIBC || defined STDC_HEADERS |
| 28 # include <stdlib.h> | |
| 630 | 29 # include <string.h> |
| 30 #else | |
| 31 char *malloc (); | |
| 32 #endif | |
| 627 | 33 |
|
2705
e17209e9562d
[!HAVE_DECL_STRNLEN]: Declare strnlen.
Jim Meyering <jim@meyering.net>
parents:
2469
diff
changeset
|
34 #ifndef HAVE_DECL_STRNLEN |
|
e17209e9562d
[!HAVE_DECL_STRNLEN]: Declare strnlen.
Jim Meyering <jim@meyering.net>
parents:
2469
diff
changeset
|
35 "this configure-time declaration test was not run" |
|
e17209e9562d
[!HAVE_DECL_STRNLEN]: Declare strnlen.
Jim Meyering <jim@meyering.net>
parents:
2469
diff
changeset
|
36 #endif |
|
e17209e9562d
[!HAVE_DECL_STRNLEN]: Declare strnlen.
Jim Meyering <jim@meyering.net>
parents:
2469
diff
changeset
|
37 #if !HAVE_DECL_STRNLEN |
|
e17209e9562d
[!HAVE_DECL_STRNLEN]: Declare strnlen.
Jim Meyering <jim@meyering.net>
parents:
2469
diff
changeset
|
38 size_t strnlen (); |
|
e17209e9562d
[!HAVE_DECL_STRNLEN]: Declare strnlen.
Jim Meyering <jim@meyering.net>
parents:
2469
diff
changeset
|
39 #endif |
|
e17209e9562d
[!HAVE_DECL_STRNLEN]: Declare strnlen.
Jim Meyering <jim@meyering.net>
parents:
2469
diff
changeset
|
40 |
| 2469 | 41 #undef __strndup |
| 42 #undef strndup | |
| 43 | |
| 44 #ifndef weak_alias | |
| 45 # define __strndup strndup | |
| 46 #endif | |
| 47 | |
| 627 | 48 char * |
| 2469 | 49 __strndup (const char *s, size_t n) |
| 627 | 50 { |
| 2469 | 51 size_t len = strnlen (s, n); |
| 52 char *new = malloc (len + 1); | |
| 627 | 53 |
| 54 if (new == NULL) | |
| 55 return NULL; | |
| 56 | |
| 2469 | 57 new[len] = '\0'; |
| 58 return (char *) memcpy (new, s, len); | |
| 627 | 59 } |
| 2469 | 60 #ifdef weak_alias |
| 61 weak_alias (__strndup, strndup) | |
| 62 #endif |