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strdup.c

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * 1.1 (the "License"); you may not use this file except in compliance with
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 * for the specific language governing rights and limitations under the
 * License.
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 * The Original Code is the Netscape Portable Runtime (NSPR).
 *
 * The Initial Developer of the Original Code is
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 * the Initial Developer. All Rights Reserved.
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#include "plstr.h"
#include "prmem.h"
#include <string.h>

PR_IMPLEMENT(char *)
PL_strdup(const char *s)
{
    char *rv;
    size_t n;

    if( (const char *)0 == s )
        s = "";

    n = strlen(s) + 1;

    rv = (char *)malloc(n);
    if( (char *)0 == rv ) return rv;

    (void)memcpy(rv, s, n);

    return rv;
}

PR_IMPLEMENT(void)
PL_strfree(char *s)
{
    free(s);
}

PR_IMPLEMENT(char *)
PL_strndup(const char *s, PRUint32 max)
{
    char *rv;
    size_t l;

    if( (const char *)0 == s )
        s = "";

    l = PL_strnlen(s, max);

    rv = (char *)malloc(l+1);
    if( (char *)0 == rv ) return rv;

    (void)memcpy(rv, s, l);
    rv[l] = '\0';

    return rv;
}

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