1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3  * License, v. 2.0. If a copy of the MPL was not distributed with this
4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5 
6 #include "plstr.h"
7 #include "prmem.h"
8 #include <string.h>
9 
10 PR_IMPLEMENT(char *)
PL_strdup(const char * s)11 PL_strdup(const char *s)
12 {
13     char *rv;
14     size_t n;
15 
16     if( (const char *)0 == s ) {
17         s = "";
18     }
19 
20     n = strlen(s) + 1;
21 
22     rv = (char *)malloc(n);
23     if( (char *)0 == rv ) {
24         return rv;
25     }
26 
27     (void)memcpy(rv, s, n);
28 
29     return rv;
30 }
31 
32 PR_IMPLEMENT(void)
PL_strfree(char * s)33 PL_strfree(char *s)
34 {
35     free(s);
36 }
37 
38 PR_IMPLEMENT(char *)
PL_strndup(const char * s,PRUint32 max)39 PL_strndup(const char *s, PRUint32 max)
40 {
41     char *rv;
42     size_t l;
43 
44     if( (const char *)0 == s ) {
45         s = "";
46     }
47 
48     l = PL_strnlen(s, max);
49 
50     rv = (char *)malloc(l+1);
51     if( (char *)0 == rv ) {
52         return rv;
53     }
54 
55     (void)memcpy(rv, s, l);
56     rv[l] = '\0';
57 
58     return rv;
59 }
60