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Annotation of mandoc/compat_strndup.c, Revision 1.1

1.1     ! schwarze    1: #include "config.h"
        !             2:
        !             3: #if HAVE_STRNDUP
        !             4:
        !             5: int dummy;
        !             6:
        !             7: #else
        !             8:
        !             9: /* $Id$ */
        !            10: /* OpenBSD: strndup.c,v 1.2 2015/08/31 02:53:57 guenther Exp */
        !            11: /*
        !            12:  * Copyright (c) 2010 Todd C. Miller <Todd.Miller@courtesan.com>
        !            13:  *
        !            14:  * Permission to use, copy, modify, and distribute this software for any
        !            15:  * purpose with or without fee is hereby granted, provided that the above
        !            16:  * copyright notice and this permission notice appear in all copies.
        !            17:  *
        !            18:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            19:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            20:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            21:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            22:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            23:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            24:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            25:  */
        !            26:
        !            27: #include <sys/types.h>
        !            28:
        !            29: #include <stdlib.h>
        !            30: #include <string.h>
        !            31:
        !            32: char *
        !            33: strndup(const char *str, size_t maxlen)
        !            34: {
        !            35:        char *copy;
        !            36:        size_t len;
        !            37:
        !            38:        for (len = 0; len < maxlen && str[len] != '\0'; len++)
        !            39:                continue;
        !            40:
        !            41:        copy = malloc(len + 1);
        !            42:        if (copy != NULL) {
        !            43:                (void)memcpy(copy, str, len);
        !            44:                copy[len] = '\0';
        !            45:        }
        !            46:
        !            47:        return copy;
        !            48: }
        !            49:
        !            50: #endif