/contrib/bind9/lib/isc/parseint.c
https://bitbucket.org/freebsd/freebsd-head/ · C · 72 lines · 46 code · 8 blank · 18 comment · 13 complexity · aaf971c0c7dfab0c2f8fb5d4a2de7163 MD5 · raw file
- /*
- * Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
- * Copyright (C) 2001-2003 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.c,v 1.8 2007/06/19 23:47:17 tbox 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);
- }