1  /* c-strstr.c -- substring search in C locale
       2     Copyright (C) 2005-2022 Free Software Foundation, Inc.
       3     Written by Bruno Haible <bruno@clisp.org>, 2005, 2007.
       4  
       5     This file is free software: you can redistribute it and/or modify
       6     it under the terms of the GNU Lesser General Public License as
       7     published by the Free Software Foundation, either version 3 of the
       8     License, or (at your option) any later version.
       9  
      10     This file is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13     GNU Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public License
      16     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <config.h>
      19  
      20  /* Specification.  */
      21  #include "c-strstr.h"
      22  
      23  #include <string.h>
      24  
      25  /* Find the first occurrence of NEEDLE in HAYSTACK.  */
      26  char *
      27  c_strstr (const char *haystack, const char *needle)
      28  {
      29    /* POSIX says that strstr() interprets the strings as byte sequences, not
      30       as character sequences in the current locale.  */
      31    return strstr (haystack, needle);
      32  }