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nsprpub/lib/libc/src/strdup.c@925c144e1f1f (annotated)

nsprpub/lib/libc/src/strdup.c

Fri, 16 Jan 2015 18:13:44 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Fri, 16 Jan 2015 18:13:44 +0100

branch

TOR_BUG_9701

changeset 14

925c144e1f1f

permissions

-rw-r--r--

Integrate suggestion from review to improve consistency with existing code.

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	}