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Annotation of sys/lib/libkern/strchr.c, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: strchr.c,v 1.3 2004/05/06 01:12:05 deraadt Exp $      */
                      2:
                      3: /*
                      4:  * Copyright (c) 2004 Daniel Hartmeier
                      5:  * All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  *
                     11:  *    - Redistributions of source code must retain the above copyright
                     12:  *      notice, this list of conditions and the following disclaimer.
                     13:  *    - Redistributions in binary form must reproduce the above
                     14:  *      copyright notice, this list of conditions and the following
                     15:  *      disclaimer in the documentation and/or other materials provided
                     16:  *      with the distribution.
                     17:  *
                     18:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
                     19:  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
                     20:  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
                     21:  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
                     22:  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
                     23:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
                     24:  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
                     25:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
                     26:  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     27:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
                     28:  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     29:  * POSSIBILITY OF SUCH DAMAGE.
                     30:  *
                     31:  */
                     32:
                     33: #if defined(LIBC_SCCS) && !defined(lint)
                     34: static char *rcsid = "$OpenBSD: strchr.c,v 1.3 2004/05/06 01:12:05 deraadt Exp $";
                     35: #endif /* LIBC_SCCS and not lint */
                     36:
                     37: #include <sys/types.h>
                     38: #if !defined(_KERNEL) && !defined(_STANDALONE)
                     39: #include <string.h>
                     40: #else
                     41: #include <lib/libkern/libkern.h>
                     42: #define NULL   ((char *)0)
                     43: #endif
                     44:
                     45: char *
                     46: strchr(const char *s, int c)
                     47: {
                     48:        while (*s) {
                     49:                if (*s == c)
                     50:                        return ((char *)s);
                     51:                s++;
                     52:        }
                     53:        return (NULL);
                     54: }
                     55:
                     56: char *
                     57: strrchr(const char *s, int c)
                     58: {
                     59:        char *t = NULL;
                     60:
                     61:        while (*s) {
                     62:                if (*s == c)
                     63:                        t = (char *)s;
                     64:                s++;
                     65:        }
                     66:        return (t);
                     67: }