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Annotation of embedaddon/ntp/lib/isc/parseint.c, revision 1.1

1.1     ! misho       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 1.8 2007/06/19 23:47:17 tbox 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: }