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ntp 4.2.6p5

    1: /*
    2:  * Copyright (C) 2004, 2005, 2007  Internet Systems Consortium, Inc. ("ISC")
    3:  * Copyright (C) 2001-2003  Internet Software Consortium.
    4:  *
    5:  * Permission to use, copy, modify, and/or distribute this software for any
    6:  * purpose with or without fee is hereby granted, provided that the above
    7:  * copyright notice and this permission notice appear in all copies.
    8:  *
    9:  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
   10:  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
   11:  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
   12:  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
   13:  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
   14:  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   15:  * PERFORMANCE OF THIS SOFTWARE.
   16:  */
   17: 
   18: /* $Id: parseint.c,v 1.1.1.1 2012/05/29 12:08:38 misho Exp $ */
   19: 
   20: /*! \file */
   21: 
   22: #include <config.h>
   23: 
   24: #include <ctype.h>
   25: #include <errno.h>
   26: #include <limits.h>
   27: 
   28: #include <isc/parseint.h>
   29: #include <isc/result.h>
   30: #include <isc/stdlib.h>
   31: 
   32: isc_result_t
   33: isc_parse_uint32(isc_uint32_t *uip, const char *string, int base) {
   34: 	unsigned long n;
   35: 	char *e;
   36: 	if (! isalnum((unsigned char)(string[0])))
   37: 		return (ISC_R_BADNUMBER);
   38: 	errno = 0;
   39: 	n = strtoul(string, &e, base);
   40: 	if (*e != '\0')
   41: 		return (ISC_R_BADNUMBER);
   42: 	if (n == ULONG_MAX && errno == ERANGE)
   43: 		return (ISC_R_RANGE);
   44: 	*uip = n;
   45: 	return (ISC_R_SUCCESS);
   46: }
   47: 
   48: isc_result_t
   49: isc_parse_uint16(isc_uint16_t *uip, const char *string, int base) {
   50: 	isc_uint32_t val;
   51: 	isc_result_t result;
   52: 	result = isc_parse_uint32(&val, string, base);
   53: 	if (result != ISC_R_SUCCESS)
   54: 		return (result);
   55: 	if (val > 0xFFFF)
   56: 		return (ISC_R_RANGE);
   57: 	*uip = (isc_uint16_t) val;
   58: 	return (ISC_R_SUCCESS);
   59: }
   60: 
   61: isc_result_t
   62: isc_parse_uint8(isc_uint8_t *uip, const char *string, int base) {
   63: 	isc_uint32_t val;
   64: 	isc_result_t result;
   65: 	result = isc_parse_uint32(&val, string, base);
   66: 	if (result != ISC_R_SUCCESS)
   67: 		return (result);
   68: 	if (val > 0xFF)
   69: 		return (ISC_R_RANGE);
   70: 	*uip = (isc_uint8_t) val;
   71: 	return (ISC_R_SUCCESS);
   72: }