/* * Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC") * Copyright (C) 2001-2003 Internet Software Consortium. * * Permission to use, copy, modify, and 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. */ /* $ISC: parseint.c,v 1.4.18.2 2005/04/29 00:16:48 marka Exp $ */ /*! \file */ #include <config.h> #include <ctype.h> #include <errno.h> #include <limits.h> #include <isc/parseint.h> #include <isc/result.h> #include <isc/stdlib.h> isc_result_t isc_parse_uint32(isc_uint32_t *uip, const char *string, int base) { unsigned long n; char *e; if (! isalnum((unsigned char)(string[0]))) return (ISC_R_BADNUMBER); errno = 0; n = strtoul(string, &e, base); if (*e != '\0') return (ISC_R_BADNUMBER); if (n == ULONG_MAX && errno == ERANGE) return (ISC_R_RANGE); *uip = n; return (ISC_R_SUCCESS); } isc_result_t isc_parse_uint16(isc_uint16_t *uip, const char *string, int base) { isc_uint32_t val; isc_result_t result; result = isc_parse_uint32(&val, string, base); if (result != ISC_R_SUCCESS) return (result); if (val > 0xFFFF) return (ISC_R_RANGE); *uip = (isc_uint16_t) val; return (ISC_R_SUCCESS); } isc_result_t isc_parse_uint8(isc_uint8_t *uip, const char *string, int base) { isc_uint32_t val; isc_result_t result; result = isc_parse_uint32(&val, string, base); if (result != ISC_R_SUCCESS) return (result); if (val > 0xFF) return (ISC_R_RANGE); *uip = (isc_uint8_t) val; return (ISC_R_SUCCESS); }