ObjFW  Check-in [550bd1b7bb]

			#ifdef AF_APPLETALK
			egrep_cpp_yes
			#endif
		], [
			AC_DEFINE(OF_HAVE_APPLETALK, 1,
			    [Whether we have AppleTalk])
			AC_SUBST(USE_SRCS_APPLETALK, '${SRCS_APPLETALK}')

			AC_CHECK_TYPE([struct ifreq], [
				AC_DEFINE(OF_HAVE_APPLETALK_IFCONFIG, 1,
				    m4_normalize([
					Whether AppleTalk interfaces
					can be configured
				]))
			], [], [
				#ifdef OF_HAVE_SYS_SOCKET_H
				# include <sys/socket.h>
				#endif
				#include <net/if.h>
			])
		])
	])

	AC_CHECK_FUNCS(paccept accept4, break)

	AC_CHECK_FUNCS(kqueue1 kqueue, [
		AC_DEFINE(HAVE_KQUEUE, 1, [Whether we have kqueue])

#import "OFDatagramSocket.h"

OF_ASSUME_NONNULL_BEGIN

@class OFString;
@class OFDictionary OF_GENERIC(KeyType, ObjectType);

#ifdef OF_HAVE_APPLETALK_IFCONFIG
/**
 * @brief A dictionary mapping keys of type @ref
 *	  OFAppleTalkInterfaceConfigurationKey.
 */
typedef OFConstantString *OFAppleTalkInterfaceConfigurationKey;

/**
 * @brief A key for OFAppleTalkInterfaceConfiguration.
 *
 * Possible keys are:
 *  * @ref OFAppleTalkInterfaceConfigurationNetwork
 *  * @ref OFAppleTalkInterfaceConfigurationNode
 *  * @ref OFAppleTalkInterfaceConfigurationPhase
 *  * @ref OFAppleTalkInterfaceConfigurationNetworkRange
 */
typedef OFDictionary OF_GENERIC(OFAppleTalkInterfaceConfigurationKey, id)
    *OFAppleTalkInterfaceConfiguration;

/**
 * @brief The AppleTalk network of an interface.
 *
 * The corresponding value is of type @ref OFNumber in the range 0 to 65535.
 */
extern const OFAppleTalkInterfaceConfigurationKey
    OFAppleTalkInterfaceConfigurationNetwork;

/**
 * @brief The AppleTalk node of an interface.
 *
 * The corresponding value is of type @ref OFNumber in the range 0 to 255.
 */
extern const OFAppleTalkInterfaceConfigurationKey
    OFAppleTalkInterfaceConfigurationNode;

/**
 * @brief The AppleTalk phase of an interface.
 *
 * The corresponding value is of type @ref OFNumber in the range 1 to 2.
 */
extern const OFAppleTalkInterfaceConfigurationKey
    OFAppleTalkInterfaceConfigurationPhase;

/**
 * @brief The AppleTalk network range of an interface.
 *
 * The corresponding value is of type @ref OFPair with two @ref OFNumber, both
 * in the range 0 to 65535.
 */
extern const OFAppleTalkInterfaceConfigurationKey
    OFAppleTalkInterfaceConfigurationNetworkRange;
#endif

/**
 * @protocol OFDDPSocketDelegate OFDDPSocket.h ObjFW/OFDDPSocket.h
 *
 * @brief A delegate for OFDDPSocket.
 */
@protocol OFDDPSocketDelegate <OFDatagramSocketDelegate>
@end

 *
 * @note The delegate is retained for as long as asynchronous operations are
 *	 still ongoing.
 */
@property OF_NULLABLE_PROPERTY (assign, nonatomic)
    id <OFDDPSocketDelegate> delegate;

#ifdef OF_HAVE_APPLETALK_IFCONFIG
/**
 * @brief Configures the specified interface with the specified AppleTalk
 *	  configuration.
 *
 * @param configuration The AppleTalk configuration for the interface. See
 *			@ref OFAppleTalkInterfaceConfiguration for more
 *			details.
 * @param interfaceName The name of the interface to configure for AppleTalk
 * @throw OFSetOptionFailedException Setting the configuration failed. Consult
 *				     errNo for details.
 */
+ (void)setConfiguration: (OFAppleTalkInterfaceConfiguration)configuration
	    forInterface: (OFString *)interfaceName;

/**
 * @brief Returns the AppleTalk configuration for the specified interface.
 *
 * @param interfaceName The name of the interface for which to return the
 *			AppleTalk configuration
 * @return The AppleTalk configuration for the specified interface, or `nil` if
 *	   the specified interface is not configured for AppleTalk. See
 *	   @ref OFAppleTalkInterfaceConfiguration for more details.
 * @throw OFGetOptionFailedException Getting the configuration failed. Consult
 *				     errNo for details.
 */
+ (nullable OFAppleTalkInterfaceConfiguration)
    configurationForInterface: (OFString *)interfaceName;

/**
 * @brief Removes the AppleTalk configuration for the specified interface.
 *
 * @param interfaceName The name of the interface for which to remove the
 *			AppleTalk configuration
 * @throw OFSetOptionFailedException Removing the configuration failed. Consult
 *				     errNo for details.
 */
+ (void)removeConfigurationForInterface: (OFString *)interfaceName;
#endif

/**
 * @brief Bind the socket to the specified network, node and port.
 *
 * @param network The network to bind to. 0 means any.
 * @param node The node to bind to. 0 means "this node".
 * @param port The port to bind to. 0 means to pick one and return it via the
 *	       returned socket address.

	unsigned int flags;
	struct at_addr address, router;
	unsigned short netStart, netEnd;
	at_nvestr_t zoneName;
};
#endif

#ifdef OF_HAVE_APPLETALK_IFCONFIG
const OFAppleTalkInterfaceConfigurationKey
    OFAppleTalkInterfaceConfigurationNode =
    @"OFAppleTalkInterfaceConfigurationNode";
const OFAppleTalkInterfaceConfigurationKey
    OFAppleTalkInterfaceConfigurationNetwork =
    @"OFAppleTalkInterfaceConfigurationNetwork";
const OFAppleTalkInterfaceConfigurationKey
    OFAppleTalkInterfaceConfigurationPhase =
    @"OFAppleTalkInterfaceConfigurationPhase";
const OFAppleTalkInterfaceConfigurationKey
    OFAppleTalkInterfaceConfigurationNetworkRange =
    @"OFAppleTalkInterfaceConfigurationNetworkRange";
#endif

@implementation OFDDPSocket
@dynamic delegate;

#ifdef OF_HAVE_APPLETALK_IFCONFIG
+ (void)setConfiguration: (OFAppleTalkInterfaceConfiguration)config
	    forInterface: (OFString *)interfaceName
{
	OFNumber *network, *node, *phase;
	OFPair OF_GENERIC(OFNumber *, OFNumber *) *range;
	int sock;
	struct ifreq request;
	struct sockaddr_at *sat;
	uint16_t rangeStart, rangeEnd;

	if (interfaceName.UTF8StringLength > IFNAMSIZ - 1)
		@throw [OFOutOfRangeException exception];

	network = [config
	    objectForKey: OFAppleTalkInterfaceConfigurationNetwork];
	node = [config objectForKey: OFAppleTalkInterfaceConfigurationNode];
	phase = [config objectForKey: OFAppleTalkInterfaceConfigurationPhase];
	range = [config
	    objectForKey: OFAppleTalkInterfaceConfigurationNetworkRange];

	if (network == nil || node == nil)
		@throw [OFInvalidArgumentException exception];

	if (phase != nil && phase.unsignedCharValue != 1 &&
	    phase.unsignedCharValue != 2)
		@throw [OFInvalidArgumentException exception];

# ifdef OF_MACOS
	if ((sock = socket(AF_APPLETALK, SOCK_RAW, 0)) < 0)
# else
	if ((sock = socket(AF_APPLETALK, SOCK_DGRAM, 0)) < 0)
# endif
		@throw [OFSetOptionFailedException
		    exceptionWithObject: nil
				  errNo: OFSocketErrNo()];

	memset(&request, 0, sizeof(request));
	strncpy(request.ifr_name, interfaceName.UTF8String, IFNAMSIZ - 1);
	sat = (struct sockaddr_at *)(void *)&request.ifr_addr;
	sat->sat_family = AF_APPLETALK;
	sat->sat_net = OFToBigEndian16(network.unsignedShortValue);
	sat->sat_node = node.unsignedCharValue;
	/*
	 * The netrange is hidden in sat_zero and different OSes use different
	 * struct names for it, so the portable way is setting sat_zero
	 * directly.
	 */
	sat->sat_zero[0] = (phase != nil ? phase.unsignedCharValue : 2);
	if (range != nil) {
		rangeStart = [range.firstObject unsignedShortValue];
		rangeEnd = [range.secondObject unsignedShortValue];
	} else {
		rangeStart = rangeEnd = network.unsignedShortValue;
	}
	sat->sat_zero[2] = rangeStart >> 8;
	sat->sat_zero[3] = rangeStart & 0xFF;
	sat->sat_zero[4] = rangeEnd >> 8;
	sat->sat_zero[5] = rangeEnd & 0xFF;

	if (ioctl(sock, SIOCSIFADDR, &request) != 0)
		@throw [OFSetOptionFailedException
		    exceptionWithObject: nil
				  errNo: OFSocketErrNo()];

	close(sock);
}

+ (OFAppleTalkInterfaceConfiguration)
    configurationForInterface: (OFString *)interfaceName
{
	int sock;
	struct ifreq request;
	struct sockaddr_at *sat;
# ifndef OF_LINUX
	uint16_t rangeStart, rangeEnd;
	OFPair *range;
# endif

	if (interfaceName.UTF8StringLength > IFNAMSIZ - 1)
		@throw [OFOutOfRangeException exception];

# ifdef OF_MACOS
	if ((sock = socket(AF_APPLETALK, SOCK_RAW, 0)) < 0)
# else
	if ((sock = socket(AF_APPLETALK, SOCK_DGRAM, 0)) < 0)
# endif
		@throw [OFGetOptionFailedException
		    exceptionWithObject: nil
				  errNo: OFSocketErrNo()];

	memset(&request, 0, sizeof(request));
	strncpy(request.ifr_name, interfaceName.UTF8String, IFNAMSIZ - 1);

	if (ioctl(sock, SIOCGIFADDR, &request) < 0) {
		int errNo = OFSocketErrNo();

		/* No AppleTalk configured on this interface. */
		if (errNo == EADDRNOTAVAIL) {
			close(sock);
			return nil;
		}

		@throw [OFGetOptionFailedException exceptionWithObject: nil
								 errNo: errNo];
	}

	sat = (struct sockaddr_at *)(void *)&request.ifr_addr;

	close(sock);

# ifndef OF_LINUX
	/*
	 * Linux currently doesn't fill out the phase or netrange.
	 *
	 * The netrange is hidden in sat_zero and different OSes use different
	 * struct names for it, so the portable way is setting sat_zero
	 * directly.
	 */
	rangeStart = sat->sat_zero[2] << 8 | sat->sat_zero[3];
	rangeEnd = sat->sat_zero[4] << 8 | sat->sat_zero[5];
	range = [OFPair
	    pairWithFirstObject: [OFNumber numberWithUnsignedShort: rangeStart]
		   secondObject: [OFNumber numberWithUnsignedShort: rangeEnd]];
# endif

	return [OFDictionary dictionaryWithKeysAndObjects:
	    OFAppleTalkInterfaceConfigurationNode,
	    [OFNumber numberWithUnsignedChar: sat->sat_node],
	    OFAppleTalkInterfaceConfigurationNetwork,
	    [OFNumber numberWithUnsignedShort: OFFromBigEndian16(sat->sat_net)],
# ifndef OF_LINUX
	    OFAppleTalkInterfaceConfigurationPhase,
	    [OFNumber numberWithUnsignedChar: sat->sat_zero[0]],
	    OFAppleTalkInterfaceConfigurationNetworkRange, range,
# endif
	    nil];
}

+ (void)removeConfigurationForInterface: (OFString *)interfaceName
{
	int sock;
	struct ifreq request;

	if (interfaceName.UTF8StringLength > IFNAMSIZ - 1)
		@throw [OFOutOfRangeException exception];

# ifdef OF_MACOS
	if ((sock = socket(AF_APPLETALK, SOCK_RAW, 0)) < 0)
# else
	if ((sock = socket(AF_APPLETALK, SOCK_DGRAM, 0)) < 0)
# endif
		@throw [OFSetOptionFailedException
		    exceptionWithObject: nil
				  errNo: OFSocketErrNo()];

	/*
	 * NetBSD requires the address to be removed, while Linux ignores the
	 * address entirely.
	 */

	memset(&request, 0, sizeof(request));
	strncpy(request.ifr_name, interfaceName.UTF8String, IFNAMSIZ - 1);

	if (ioctl(sock, SIOCGIFADDR, &request) != 0)
		if (errno != EADDRNOTAVAIL)
			@throw [OFSetOptionFailedException
			    exceptionWithObject: nil
					  errNo: OFSocketErrNo()];

	if (ioctl(sock, SIOCDIFADDR, &request) != 0)
		@throw [OFSetOptionFailedException
		    exceptionWithObject: nil
				  errNo: OFSocketErrNo()];
}
#endif

- (OFSocketAddress)bindToNetwork: (uint16_t)network
			    node: (uint8_t)node
			    port: (uint8_t)port
		    protocolType: (uint8_t)protocolType
{
#ifdef OF_MACOS
	const int one = 1;

#undef OF_APPLE_RUNTIME
#undef OF_BIG_ENDIAN
#undef OF_CLASSIC_MACOS
#undef OF_FLOAT_BIG_ENDIAN
#undef OF_HAVE_AFUNIX_H
#undef OF_HAVE_APPLETALK
#undef OF_HAVE_APPLETALK_IFCONFIG
#undef OF_HAVE_ATOMIC_BUILTINS
#undef OF_HAVE_ATOMIC_OPS
#undef OF_HAVE_BUILTIN_BSWAP16
#undef OF_HAVE_BUILTIN_BSWAP32
#undef OF_HAVE_BUILTIN_BSWAP64
#undef OF_HAVE_CHMOD
#undef OF_HAVE_CHOWN