OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libiberty/] [strndup.c] - Blame information for rev 791

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 736 jeremybenn
/* Implement the strndup function.
2
   Copyright (C) 2005 Free Software Foundation, Inc.
3
   Written by Kaveh R. Ghazi <ghazi@caip.rutgers.edu>.
4
 
5
This file is part of the libiberty library.
6
Libiberty is free software; you can redistribute it and/or
7
modify it under the terms of the GNU Library General Public
8
License as published by the Free Software Foundation; either
9
version 2 of the License, or (at your option) any later version.
10
 
11
Libiberty 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 GNU
14
Library General Public License for more details.
15
 
16
You should have received a copy of the GNU Library General Public
17
License along with libiberty; see the file COPYING.LIB.  If
18
not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
19
Boston, MA 02110-1301, USA.  */
20
 
21
/*
22
 
23
@deftypefn Extension char* strndup (const char *@var{s}, size_t @var{n})
24
 
25
Returns a pointer to a copy of @var{s} with at most @var{n} characters
26
in memory obtained from @code{malloc}, or @code{NULL} if insufficient
27
memory was available.  The result is always NUL terminated.
28
 
29
@end deftypefn
30
 
31
*/
32
 
33
#include "ansidecl.h"
34
#include <stddef.h>
35
 
36
extern size_t   strlen (const char*);
37
extern PTR      malloc (size_t);
38
extern PTR      memcpy (PTR, const PTR, size_t);
39
 
40
char *
41
strndup (const char *s, size_t n)
42
{
43
  char *result;
44
  size_t len = strlen (s);
45
 
46
  if (n < len)
47
    len = n;
48
 
49
  result = (char *) malloc (len + 1);
50
  if (!result)
51
    return 0;
52
 
53
  result[len] = '\0';
54
  return (char *) memcpy (result, s, len);
55
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.