/* 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 "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;
}