nsprpub/lib/libc/src/strdup.c@6474c204b198 (annotated)
nsprpub/lib/libc/src/strdup.c
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "plstr.h" |
| michael@0 | 7 | #include "prmem.h" |
| michael@0 | 8 | #include <string.h> |
| michael@0 | 9 | |
| michael@0 | 10 | PR_IMPLEMENT(char *) |
| michael@0 | 11 | PL_strdup(const char *s) |
| michael@0 | 12 | { |
| michael@0 | 13 | char *rv; |
| michael@0 | 14 | size_t n; |
| michael@0 | 15 | |
| michael@0 | 16 | if( (const char *)0 == s ) |
| michael@0 | 17 | s = ""; |
| michael@0 | 18 | |
| michael@0 | 19 | n = strlen(s) + 1; |
| michael@0 | 20 | |
| michael@0 | 21 | rv = (char *)malloc(n); |
| michael@0 | 22 | if( (char *)0 == rv ) return rv; |
| michael@0 | 23 | |
| michael@0 | 24 | (void)memcpy(rv, s, n); |
| michael@0 | 25 | |
| michael@0 | 26 | return rv; |
| michael@0 | 27 | } |
| michael@0 | 28 | |
| michael@0 | 29 | PR_IMPLEMENT(void) |
| michael@0 | 30 | PL_strfree(char *s) |
| michael@0 | 31 | { |
| michael@0 | 32 | free(s); |
| michael@0 | 33 | } |
| michael@0 | 34 | |
| michael@0 | 35 | PR_IMPLEMENT(char *) |
| michael@0 | 36 | PL_strndup(const char *s, PRUint32 max) |
| michael@0 | 37 | { |
| michael@0 | 38 | char *rv; |
| michael@0 | 39 | size_t l; |
| michael@0 | 40 | |
| michael@0 | 41 | if( (const char *)0 == s ) |
| michael@0 | 42 | s = ""; |
| michael@0 | 43 | |
| michael@0 | 44 | l = PL_strnlen(s, max); |
| michael@0 | 45 | |
| michael@0 | 46 | rv = (char *)malloc(l+1); |
| michael@0 | 47 | if( (char *)0 == rv ) return rv; |
| michael@0 | 48 | |
| michael@0 | 49 | (void)memcpy(rv, s, l); |
| michael@0 | 50 | rv[l] = '\0'; |
| michael@0 | 51 | |
| michael@0 | 52 | return rv; |
| michael@0 | 53 | } |
