/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "plstr.h"
#include <string.h>

PR_IMPLEMENT(char*)
PL_strcat(char* dest, const char* src)
{
    if (((char*)0 == dest) || ((const char*)0 == src)) {
        return dest;
    }

    return strcat(dest, src);
}

PR_IMPLEMENT(char*)
PL_strncat(char* dest, const char* src, PRUint32 max)
{
    char* rv;

    if (((char*)0 == dest) || ((const char*)0 == src) || (0 == max)) {
        return dest;
    }

    for (rv = dest; *dest; dest++)
        ;

    (void)PL_strncpy(dest, src, max);
    return rv;
}

PR_IMPLEMENT(char*)
PL_strcatn(char* dest, PRUint32 max, const char* src)
{
    char* rv;
    PRUint32 dl;

    if (((char*)0 == dest) || ((const char*)0 == src)) {
        return dest;
    }

    for (rv = dest, dl = 0; *dest; dest++, dl++)
        ;

    if (max <= dl) {
        return rv;
    }
    (void)PL_strncpyz(dest, src, max - dl);

    return rv;
}
