parseint.h revision ec5347e2c775f027573ce5648b910361aa926c01
/*
* Copyright (C) 2004-2006 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 2001, 2002 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: parseint.h,v 1.8 2007/06/18 23:47:44 tbox Exp $ */
#ifndef ISC_PARSEINT_H
#define ISC_PARSEINT_H 1
#include <isc/lang.h>
#include <isc/types.h>
/*! \file isc/parseint.h
* \brief Parse integers, in a saner way than atoi() or strtoul() do.
*/
/***
*** Functions
***/
ISC_LANG_BEGINDECLS
isc_result_t
isc_parse_uint32(isc_uint32_t *uip, const char *string, int base);
isc_result_t
isc_parse_uint16(isc_uint16_t *uip, const char *string, int base);
isc_result_t
isc_parse_uint8(isc_uint8_t *uip, const char *string, int base);
/*%<
* Parse the null-terminated string 'string' containing a base 'base'
* integer, storing the result in '*uip'.
* The base is interpreted
* as in strtoul(). Unlike strtoul(), leading whitespace, minus or
* plus signs are not accepted, and all errors (including overflow)
* are reported uniformly through the return value.
*
* Requires:
*\li 'string' points to a null-terminated string
*\li 0 <= 'base' <= 36
*
* Returns:
*\li #ISC_R_SUCCESS
*\li #ISC_R_BADNUMBER The string is not numeric (in the given base)
*\li #ISC_R_RANGE The number is not representable as the requested type.
*/
ISC_LANG_ENDDECLS
#endif /* ISC_PARSEINT_H */