NAME

       strstr - find a substring

SYNOPSIS

       #include <string.h>

       char *strstr(const char *s1, const char *s2);

DESCRIPTION

       The strstr() function shall locate the first occurrence in the string pointed to by s1 of the sequence of
       bytes (excluding the terminating null byte) in the string pointed to by s2.

RETURN VALUE

       Upon  successful  completion,  strstr() shall return a pointer to the located string or a null pointer if
       the string is not found.

       If s2 points to a string with zero length, the function shall return s1.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       strchr() , the Base Definitions volume of IEEE Std 1003.1-2001, <string.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition,
       Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open  Group  Base
       Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers,
       Inc  and  The  Open Group. In the event of any discrepancy between this version and the original IEEE and
       The Open Group Standard, the original IEEE and The Open Group  Standard  is  the  referee  document.  The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group                                   2003                                             STRSTR(P)