/* 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;
}