7a17ef5e63
include/
2005-03-27 Gabriel Dos Reis <gdr@integreable-solutions.net>
* ternary.h: Don't use PARAMS anymore.
libiberty/
2005-03-27 Gabriel Dos Reis <gdr@integrable-solutions.net>
Convert libiberty to use ISO C prototype style 6/n.
* strerror.c (init_error_tables, errno_max, strerror,
strerrno,
strtoerrno, main): Use ISO C prototype style.
* strncasecmp.c (strncasecmp): Likewise.
* strncmp.c (strncmp): Likewise.
* strndup.c (strndup): Likewise.
* strrchr.c (strrchr): Likewise.
* strsignal.c (init_signal_tables, signo_max, strsignal,
strsigno, strtosigno, psignal, main): Likewise.
* strstr.c (strstr): Likewise.
* strtod.c (strtod, atof): Likewise.
* strtol.c (strtol): Likewise.
* strtoul.c (strtoul): Likewise.
* ternary.c (ternary_insert, ternary_cleanup, ternary_search,
ternary_recursivesearch): Likewise.
* tmpnam.c (tmpnam): Likewise.
* unlink-if-ordinary.c (unlink_if_ordinary): Likewise.
* vasprintf.c (int_vasprintf, vasprintf, checkit, main):
Likewise.
* vfork.c (vfork): Likewise.
* vfprintf.c (vfprintf): Likewise.
* vprintf.c (vprintf): Likewise.
* vsnprintf.c (vsnprintf, checkit, main): Likewise.
* vsprintf.c (vsprintf): Likewise.
* waitpid.c (waitpid): Likewise.
* xatexit.c (xatexit, xatexit_cleanup): Likewise.
* xexit.c (xexit): Likewise.
* xmalloc.c (xmalloc_set_program_name, xmalloc_failed,
xmalloc,
xcalloc, xrealloc): Likewise.
* xmemdup.c (xmemdup): Likewise.
* xstrdup.c (xstrdup): Likewise.
* xstrerror.c (xstrerror): Likewise.
* xstrndup.c (xstrndup): Likewise.
From-SVN: r97122
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/* Implement the strndup function.
|
|
Copyright (C) 2005 Free Software Foundation, Inc.
|
|
Written by Kaveh R. Ghazi <ghazi@caip.rutgers.edu>.
|
|
|
|
This file is part of the libiberty library.
|
|
Libiberty is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2 of the License, or (at your option) any later version.
|
|
|
|
Libiberty is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with libiberty; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
/*
|
|
|
|
@deftypefn Extension char* strndup (const char *@var{s}, size_t @var{n})
|
|
|
|
Returns a pointer to a copy of @var{s} with at most @var{n} characters
|
|
in memory obtained from @code{malloc}, or @code{NULL} if insufficient
|
|
memory was available. The result is always NUL terminated.
|
|
|
|
@end deftypefn
|
|
|
|
*/
|
|
|
|
#include "ansidecl.h"
|
|
#include <stddef.h>
|
|
|
|
extern size_t strlen (const char*);
|
|
extern PTR malloc (size_t);
|
|
extern PTR memcpy (PTR, const PTR, size_t);
|
|
|
|
char *
|
|
strndup (const char *s, size_t n)
|
|
{
|
|
char *result;
|
|
size_t len = strlen (s);
|
|
|
|
if (n < len)
|
|
len = n;
|
|
|
|
result = malloc (len + 1);
|
|
if (!result)
|
|
return 0;
|
|
|
|
result[len] = '\0';
|
|
return memcpy (result, s, len);
|
|
}
|