external/bsd/iscsi/dist/src/lib/strtoll.c

   1 /* $NetBSD: strtoll.c,v 1.3 2007/06/16 23:13:26 agc Exp $ */
   2
   3 /*
   4  * Copyright © 2006 Alistair Crooks.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. The name of the author may not be used to endorse or promote
  15  *    products derived from this software without specific prior written
  16  *    permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
  19  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  22  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  24  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  26  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  27  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  28  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30 #include "config.h"
  31
  32 #include <sys/types.h>
  33
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <unistd.h>
  37
  38 #include "compat.h"
  39
  40 #ifndef HAVE_STRTOLL
  41
  42 static char     *digits = "0123456789abcdefghijklmnopqrstuvwxyz";
  43
  44 int64_t
  45 strtoll(const char *ptr, const char **endptr, int base)
  46 {
  47         const char      *cp;
  48         int64_t          ret;
  49         char            *dig;
  50         int              d;
  51
  52         for (ret = 0, cp = ptr ; *cp && (dig = strchr(digits, *cp)) != NULL  && (d = (int)(dig - digits)) < base ; cp++) {
  53                 ret = (ret * base) + d;
  54         }
  55         if (endptr != NULL) {
  56                 *endptr = cp;
  57         }
  58         return ret;
  59 }
  60 #endif /* HAVE_STRTOLL */