/*
* Copyright (c) 2008-2023 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#include <errno.h>
#ifdef HAVE_NET_IF_H
# include <net/if.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#include "unistd.h"
#import "OFApplication.h"
#import "OFArray.h"
#import "OFOptionsParser.h"
#import "OFSocket.h"
#import "OFStdIOStream.h"
#import "OFInvalidFormatException.h"
@interface OFATalkCfg: OFObject <OFApplicationDelegate>
@end
OF_APPLICATION_DELEGATE(OFATalkCfg)
static void
configureInterface(OFString *interface, uint16_t network, uint8_t node,
uint8_t phase, uint16_t rangeStart, uint16_t rangeEnd)
{
struct ifreq request = { 0 };
struct sockaddr_at *sat;
#ifdef OF_LINUX
struct atalk_netrange *nr;
#else
struct netrange *nr;
#endif
int sock;
if (interface.UTF8StringLength > IFNAMSIZ) {
[OFStdErr writeFormat: @"%@: Interface name too long!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
strncpy(request.ifr_name, interface.UTF8String, IFNAMSIZ);
sat = (struct sockaddr_at *)&request.ifr_addr;
sat->sat_family = AF_APPLETALK;
sat->sat_net = OFToBigEndian16(network);
sat->sat_node = node;
nr = (__typeof__(nr))(void *)sat->sat_zero;
nr->nr_phase = phase;
nr->nr_firstnet = OFToBigEndian16(rangeStart);
nr->nr_lastnet = OFToBigEndian16(rangeEnd);
if ((sock = socket(AF_APPLETALK, SOCK_DGRAM, 0)) < 0) {
int errNo = OFSocketErrNo();
[OFStdErr writeFormat: @"%@: Failed to create socket: %@\n",
[OFApplication programName],
OFStrError(errNo)];
#ifdef OF_LINUX
if (errNo == EAFNOSUPPORT)
[OFStdErr writeLine: @"Did you forget to run "
@"\"modprobe appletalk\"?"];
#endif
[OFApplication terminateWithStatus: 1];
}
if (ioctl(sock, SIOCSIFADDR, &request) != 0) {
[OFStdErr writeFormat: @"%@: Failed to set address: %@\n",
[OFApplication programName],
OFStrError(OFSocketErrNo())];
[OFApplication terminateWithStatus: 1];
}
close(sock);
}
@implementation OFATalkCfg
- (void)applicationDidFinishLaunching: (OFNotification *)notification
{
OFString *nodeString = nil, *networkString = nil, *phaseString = nil;
OFString *rangeString = nil;
const OFOptionsParserOption options[] = {
{ '\0', @"network", 1, NULL, &networkString },
{ '\0', @"node", 1, NULL, &nodeString },
{ '\0', @"phase", 1, NULL, &phaseString },
{ '\0', @"range", 1, NULL, &rangeString },
{ '\0', nil, 0, NULL, NULL }
};
OFOptionsParser *optionsParser =
[OFOptionsParser parserWithOptions: options];
OFUnichar option;
unsigned long long node, network, phase, rangeStart, rangeEnd;
OFArray OF_GENERIC(OFString *) *rangeArray;
while ((option = [optionsParser nextOption]) != '\0') {
switch (option) {
case ':':
if (optionsParser.lastLongOption != nil)
[OFStdErr writeFormat:
@"%@: Argument for option --%@ missing\n",
[OFApplication programName],
optionsParser.lastLongOption];
else
[OFStdErr writeFormat:
@"%@: Argument for option -%C missing\n",
[OFApplication programName],
optionsParser.lastOption];
[OFApplication terminateWithStatus: 1];
break;
case '?':
if (optionsParser.lastLongOption != nil)
[OFStdErr writeFormat:
@"%@: Unknown option: --%@\n",
[OFApplication programName],
optionsParser.lastLongOption];
else
[OFStdErr writeFormat:
@"%@: Unknown option: -%C\n",
[OFApplication programName],
optionsParser.lastOption];
[OFApplication terminateWithStatus: 1];
break;
}
}
if (optionsParser.remainingArguments.count == 0) {
[OFStdErr writeFormat: @"%@: No interface specified!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
if (optionsParser.remainingArguments.count > 1) {
[OFStdErr writeFormat: @"%@: More than one interface "
@"specified!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
if (networkString == nil) {
[OFStdErr writeFormat: @"%@: --network not specified!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
@try {
network = [networkString unsignedLongLongValueWithBase: 0];
} @catch (OFInvalidFormatException *e) {
[OFStdErr writeFormat: @"%@: Invalid format for --network!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
if (network > UINT16_MAX) {
[OFStdErr writeFormat: @"%@: --network out of range!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
if (nodeString == nil) {
[OFStdErr writeFormat: @"%@: --node not specified!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
@try {
node = [nodeString unsignedLongLongValueWithBase: 0];
} @catch (OFInvalidFormatException *e) {
[OFStdErr writeFormat: @"%@: Invalid format for --node!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
if (node > UINT8_MAX) {
[OFStdErr writeFormat: @"%@: --node out of range!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
if (phaseString != nil) {
@try {
phase = [phaseString unsignedLongLongValueWithBase: 0];
} @catch (OFInvalidFormatException *e) {
[OFStdErr writeFormat:
@"%@: Invalid format for "@"--phase!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
if (phase > 2) {
[OFStdErr writeFormat: @"%@: --phase out of range!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
} else
phase = 2;
if (rangeString != nil) {
rangeArray = [rangeString componentsSeparatedByString: @"-"];
if (rangeArray.count != 2) {
[OFStdErr writeFormat:
@"%@: Invalid format for --range!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
@try {
rangeStart = [[rangeArray objectAtIndex: 0]
unsignedLongLongValueWithBase: 0];
rangeEnd = [[rangeArray objectAtIndex: 1]
unsignedLongLongValueWithBase: 0];
} @catch (OFInvalidFormatException *e) {
[OFStdErr writeFormat:
@"%@: Invalid format for --range!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
if (rangeStart > UINT16_MAX || rangeEnd > UINT16_MAX) {
[OFStdErr writeFormat: @"%@: --range out of range!\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
} else {
rangeStart = network;
rangeEnd = network;
}
configureInterface(optionsParser.remainingArguments.firstObject,
(uint16_t)network, (uint8_t)node, (uint8_t)phase,
(uint16_t)rangeStart, (uint16_t)rangeEnd);
[OFApplication terminate];
}
@end