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mirror of https://gitlab.isc.org/isc-projects/bind9 synced 2025-08-24 11:08:45 +00:00
bind/lib/isc/parseint.c
Ondřej Surý 58bd26b6cf Update the copyright information in all files in the repository
This commit converts the license handling to adhere to the REUSE
specification.  It specifically:

1. Adds used licnses to LICENSES/ directory

2. Add "isc" template for adding the copyright boilerplate

3. Changes all source files to include copyright and SPDX license
   header, this includes all the C sources, documentation, zone files,
   configuration files.  There are notes in the doc/dev/copyrights file
   on how to add correct headers to the new files.

4. Handle the rest that can't be modified via .reuse/dep5 file.  The
   binary (or otherwise unmodifiable) files could have license places
   next to them in <foo>.license file, but this would lead to cluttered
   repository and most of the files handled in the .reuse/dep5 file are
   system test files.
2022-01-11 09:05:02 +01:00

80 lines
1.8 KiB
C

/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
/*! \file */
#include <ctype.h>
#include <errno.h>
#include <inttypes.h>
#include <limits.h>
#include <stdlib.h>
#include <isc/parseint.h>
#include <isc/result.h>
isc_result_t
isc_parse_uint32(uint32_t *uip, const char *string, int base) {
unsigned long n;
uint32_t r;
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);
}
/*
* Where long is 64 bits we need to convert to 32 bits then test for
* equality. This is a no-op on 32 bit machines and a good compiler
* will optimise it away.
*/
r = (uint32_t)n;
if ((n == ULONG_MAX && errno == ERANGE) || (n != (unsigned long)r)) {
return (ISC_R_RANGE);
}
*uip = r;
return (ISC_R_SUCCESS);
}
isc_result_t
isc_parse_uint16(uint16_t *uip, const char *string, int base) {
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 = (uint16_t)val;
return (ISC_R_SUCCESS);
}
isc_result_t
isc_parse_uint8(uint8_t *uip, const char *string, int base) {
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 = (uint8_t)val;
return (ISC_R_SUCCESS);
}