ObjFW  Check-in [a15a0854be]

 *   * @ref OFNetworkInterfaceIndex
 */
typedef OFConstantString *OFNetworkInterfaceKey;

/**
 * @brief The index of a network interface.
 *
 * This maps to an @ref OFNumber.
 */
extern OFNetworkInterfaceKey OFNetworkInterfaceIndex;

/**
 * @brief The IPv4 addresses of a network interface.
 *
 * This maps to an @ref OFData of @ref OFSocketAddress.
 */
extern OFNetworkInterfaceKey OFNetworkInterfaceIPv4Addresses;
#endif

/**
 * @class OFSystemInfo OFSystemInfo.h ObjFW/OFSystemInfo.h
 *
 * @brief A class for querying information about the system.
 */

#endif
#ifdef HAVE_NET_IF_DL_H
# include <net/if_dl.h>
#endif
#ifdef HAVE_NETPACKET_PACKET_H
# include <netpacket/packet.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif

#ifdef OF_AMIGAOS
# define Class IntuitionClass
# include <exec/execbase.h>
# include <proto/exec.h>
# undef Class
#endif

#import "OFDictionary.h"
#import "OFIRI.h"
#import "OFLocale.h"
#import "OFNumber.h"
#import "OFOnce.h"
#ifdef OF_HAVE_SOCKETS
# import "OFSocket.h"
# import "OFSocket+Private.h"
#endif
#import "OFString.h"

#if defined(OF_MACOS) || defined(OF_IOS)
# ifdef HAVE_SYSDIR_H
#  include <sysdir.h>
# endif

    NSSearchPathDirectory, NSSearchPathDomainMask);
extern NSSearchPathEnumerationState NSGetNextSearchPathEnumeration(
    NSSearchPathEnumerationState, char *);
#endif

#ifdef OF_HAVE_SOCKETS
OFNetworkInterfaceKey OFNetworkInterfaceIndex = @"OFNetworkInterfaceIndex";
OFNetworkInterfaceKey OFNetworkInterfaceIPv4Addresses =
    @"OFNetworkInterfaceIPv4Addresses";
#endif

#if defined(OF_AMD64) || defined(OF_X86)
struct X86Regs {
	uint32_t eax, ebx, ecx, edx;
};
#endif

+ (bool)isWindowsNT
{
	return !(GetVersion() & 0x80000000);
}
#endif

#ifdef OF_HAVE_SOCKETS
static bool
queryNetworkInterfaceIndices(OFMutableDictionary *ret)
{
# ifdef HAVE_IF_NAMEINDEX


	OFStringEncoding encoding = [OFLocale encoding];
	struct if_nameindex *nameindex = if_nameindex();

	if (nameindex == NULL)

		return false;


	@try {
		for (size_t i = 0; nameindex[i].if_index != 0; i++) {
			OFString *name = [OFString
			    stringWithCString: nameindex[i].if_name
				     encoding: encoding];
			OFNumber *index = [OFNumber
			    numberWithUnsignedInt: nameindex[i].if_index];
			OFMutableDictionary *interface =
			    [ret objectForKey: name];

			if (interface == nil) {
				interface = [OFMutableDictionary dictionary];
				[ret setObject: interface forKey: name];
			}

			[interface setObject: index
				      forKey: OFNetworkInterfaceIndex];
		}
	} @finally {
		if_freenameindex(nameindex);
	}

	return true;
# else
	return false;
# endif
}

static bool
queryNetworkInterfaceIPv4Addresses(OFMutableDictionary *ret)
{
# if defined(HAVE_SYS_IOCTL_H) && defined(HAVE_NET_IF_H)
	OFStringEncoding encoding = [OFLocale encoding];
	int sock = socket(AF_INET, SOCK_DGRAM, 0);
	struct ifconf ifc;
	struct ifreq *ifrs;
	OFMutableDictionary *interface;
	OFEnumerator *enumerator;

	if (sock < 0)
		return false;

	ifrs = malloc(128 * sizeof(struct ifreq));
	if (ifrs == NULL) {
		closesocket(sock);
		return false;
	}

	@try {
		memset(&ifc, 0, sizeof(ifc));
		ifc.ifc_buf = (void *)ifrs;
		ifc.ifc_len = 128 * sizeof(struct ifreq);
		if (ioctl(sock, SIOCGIFCONF, &ifc) < 0)
			return false;

		for (size_t i = 0; i < ifc.ifc_len / sizeof(struct ifreq);
		    i++) {
			OFString *name;
			OFMutableData *addresses;
			OFSocketAddress address;

			if (ifrs[i].ifr_addr.sa_family != AF_INET)
				continue;

			name = [OFString stringWithCString: ifrs[i].ifr_name
						  encoding: encoding];
			interface = [ret objectForKey: name];
			if (interface == nil) {
				interface = [OFMutableDictionary dictionary];
				[ret setObject: interface forKey: name];
			}

			addresses = [interface
			    objectForKey: OFNetworkInterfaceIPv4Addresses];
			if (addresses == nil) {
				addresses = [OFMutableData
				    dataWithItemSize: sizeof(OFSocketAddress)];
				[interface
				    setObject: addresses
				       forKey: OFNetworkInterfaceIPv4Addresses];
			}

			memset(&address, 0, sizeof(address));
			address.family = OFSocketAddressFamilyIPv4;
			memcpy(&address.sockaddr.in, &ifrs[i].ifr_addr,
			    sizeof(struct sockaddr_in));

			[addresses addItem: &address];
		}
	} @finally {
		free(ifrs);
		closesocket(sock);
	}

	enumerator = [ret objectEnumerator];
	while ((interface = [enumerator nextObject]) != nil)
		[[interface objectForKey: OFNetworkInterfaceIPv4Addresses]
		    makeImmutable];

	return true;
# else
	return false;
# endif
}

+ (OFDictionary OF_GENERIC(OFString *, OFNetworkInterface) *)networkInterfaces
{
	void *pool = objc_autoreleasePoolPush();
	OFMutableDictionary *ret = [OFMutableDictionary dictionary];
	bool success = false;
	OFEnumerator *enumerator;
	OFMutableDictionary *interface;

	success |= queryNetworkInterfaceIndices(ret);
	success |= queryNetworkInterfaceIPv4Addresses(ret);

	if (!success) {
		objc_autoreleasePoolPop(pool);
		return nil;
	}

	enumerator = [ret objectEnumerator];
	while ((interface = [enumerator nextObject]) != nil)
		[interface makeImmutable];

	[ret makeImmutable];
	[ret retain];

	objc_autoreleasePoolPop(pool);

	return [ret autorelease];



}
#endif

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}
@end

	    [OFSystemInfo supportsAltiVec]];
#endif

#ifdef OF_HAVE_SOCKETS
	networkInterfaces = [OFSystemInfo networkInterfaces];
	[OFStdOut writeString: @"[OFSystemInfo] Network interfaces: "];
	for (OFString *name in networkInterfaces) {
		OFNetworkInterface interface;
		OFData *IPv4Addresses;

		if (!firstInterface)
			[OFStdOut writeString: @"; "];

		firstInterface = false;

		[OFStdOut writeFormat: @"%@(", name];

		interface = [networkInterfaces objectForKey: name];
		IPv4Addresses = [interface
		    objectForKey: OFNetworkInterfaceIPv4Addresses];

		for (size_t i = 0; i < IPv4Addresses.count; i++) {
			const OFSocketAddress *address =
			    [IPv4Addresses itemAtIndex: i];

			if (i > 0)
				[OFStdOut writeString: @", "];

			[OFStdOut writeString: OFSocketAddressString(address)];
		}

		[OFStdOut writeString: @")"];
	}
	[OFStdOut writeString: @"\n"];
#endif

	objc_autoreleasePoolPop(pool);
}
@end