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/***************************************************************************** 
*   $Id: strstr.c,v 6.1 1998/07/01 06:34:33 darren Exp $ 
* 
*   Copyright (c) 1996-1998, Darren Hiebert 
* 
*   This source code is released for free distribution under the terms of the 
*   GNU General Public License. 
* 
*   This module contains a substitute for a potentially missing ANSI C 
*   function. 
*****************************************************************************/ 
#ifdef HAVE_CONFIG_H 
# include  
#endif 
#include  
 
#ifndef HAVE_STRSTR 
 
extern char * strstr( str, substr ) 
    const char *const str; 
    const char *const substr; 
{ 
    const size_t length = strlen(substr); 
    const char *match = NULL; 
    const char *p; 
 
    for (p = str  ;  *p != '\0'  ;  ++p) 
	if (strncmp(p, substr, length) == 0) 
	{ 
	    match = p; 
	    break; 
	} 
    return match; 
} 
 
#endif 
 
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