libpurple/protocols/gg/lib/network.c

branch
release-2.x.y
changeset 35617
c9069e0e3c36
child 35627
fd11790cc4d6
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libpurple/protocols/gg/lib/network.c	Fri Feb 28 17:29:00 2014 +0100
@@ -0,0 +1,307 @@
+/*
+ *  (C) Copyright 2011 Wojtek Kaniewski <wojtekka@irc.pl>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License Version
+ *  2.1 as published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
+ *  USA.
+ */
+
+#include "network.h"
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef _WIN32
+
+/* Code losely based on sockerpair implementation by Nathan C. Meyrs.
+ * The original copyright notice follows: */
+
+/* socketpair.c
+ * Copyright 2007, 2010 by Nathan C. Myers <ncm@cantrip.org>
+ * This code is Free Software. It may be copied freely, in original or
+ * modified form, subject only to the restrictions that (1) the author is
+ * relieved from all responsibilities for any use for any purpose, and (2)
+ * this copyright notice must be retained, unchanged, in its entirety. If
+ * for any reason the author might be held responsible for any consequences
+ * of copying or use, license is withheld.
+ */
+
+int gg_win32_socketpair(int sv[2])
+{
+	struct sockaddr_in sin;
+	socklen_t sin_len = sizeof(sin);
+	int server = -1;
+	int tmp = 1;
+
+	server = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+
+	sv[0] = -1;
+	sv[1] = -1;
+
+	if (server == -1)
+		goto fail;
+	
+	memset(&sin, 0, sizeof(sin));
+	sin.sin_family = AF_INET;
+	sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+	sin.sin_port = 0;
+
+	if (setsockopt(server, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp)) == -1)
+		goto fail;
+
+	if (bind(server, (struct sockaddr*) &sin, sin_len) == -1)
+		goto fail;
+
+	if (listen(server, 1) == -1)
+		goto fail;
+
+	if (getsockname(server, (struct sockaddr*) &sin, &sin_len) == -1)
+		goto fail;
+	
+	sin.sin_family = AF_INET;
+	sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+
+	sv[0] = socket(AF_INET, SOCK_STREAM, 0);
+
+	if (sv[0] == -1)
+		goto fail;
+	
+	if (connect(sv[0], (struct sockaddr*) &sin, sin_len) == -1)
+		goto fail;
+
+	sv[1] = accept(server, NULL, NULL);
+
+	if (sv[1] == -1)
+		goto fail;
+
+	close(server);
+
+	return 0;
+
+fail:
+	close(server);
+	close(sv[0]);
+	close(sv[1]);
+
+	return -1;
+}
+
+static int gg_win32_map_wsa_error_to_errno(int wsaewouldblock_map)
+{
+	int wsa_error;
+
+	wsa_error = WSAGetLastError();
+
+	/* Tutaj powinny być tłumaczone wszystkie typy błędów sprawdzane przez
+	 * kod libgadu. Dla spójność są również tłumaczone typy błędów ustawiane
+	 * przez libgadu.
+	 * Ponadto gdyby okazało się, że jakaś aplikacja na Win32 chce móc
+	 * polegać jeszcze na innych wartościach errno, można tutaj dodać
+	 * ich tłumaczenie. Najpierw jednak zawsze trzeba porównać dokumentacje,
+	 * aby upewnić się co do poprawności tłumaczenia (patrz WSAEWOULDBLOCK,
+	 * które można tłumaczyć na EWOULDBLOCK lub EAGAIN, a nawet na
+	 * EINPROGRESS w przypadku connect()).
+	 */
+	switch (wsa_error)
+	{
+	/* Typy błędów sprawdzane przez libgadu. */
+	case WSAEINTR:
+		return EINTR;
+	case WSAEWOULDBLOCK:
+		return wsaewouldblock_map;
+	/* Typy błędów ustawiane przez libgadu. */
+	case WSAECONNRESET:
+		return ECONNRESET;
+	case WSAEFAULT:
+		return EFAULT;
+	case WSAEINVAL:
+		return EINVAL;
+	case WSAENOTCONN:
+		return ENOTCONN;
+	case WSAETIMEDOUT:
+		return ETIMEDOUT;
+	default:
+		/* Najlepiej zwrócić oryginalny kod błędu. I tak będzie co najwyżej
+		 * wyświetlony w komunikacie debugowym, a tym sposobem będzie łatwiej
+		 * dojść przyczyny problemu. */
+		return wsa_error;
+	}
+}
+
+#undef accept
+int gg_win32_accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen)
+{
+	int res;
+
+	res = accept(sockfd, addr, addrlen);
+
+	if (res == -1)
+		errno = gg_win32_map_wsa_error_to_errno(EAGAIN);
+
+	return res;
+}
+
+#undef bind
+int gg_win32_bind(int sockfd, const struct sockaddr *addr, socklen_t addrlen)
+{
+	int res;
+
+	res = bind(sockfd, addr, addrlen);
+
+	if (res == -1)
+		errno = gg_win32_map_wsa_error_to_errno(EAGAIN);
+
+	return res;
+}
+
+int gg_win32_close(int sockfd)
+{
+	int res;
+
+	res = closesocket(sockfd);
+
+	if (res == -1)
+		errno = gg_win32_map_wsa_error_to_errno(EAGAIN);
+
+	return res;
+}
+
+#undef connect
+int gg_win32_connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen)
+{
+	int res;
+
+	res = connect(sockfd, addr, addrlen);
+
+	if (res == -1)
+		errno = gg_win32_map_wsa_error_to_errno(EINPROGRESS);
+
+	return res;
+}
+
+#undef gethostbyname
+struct hostent *gg_win32_gethostbyname(const char *name)
+{
+	struct hostent *res;
+
+	res = gethostbyname(name);
+
+	if (res == NULL)
+		errno = gg_win32_map_wsa_error_to_errno(EAGAIN);
+
+	return res;
+}
+
+#undef getsockname
+int gg_win32_getsockname(int sockfd, struct sockaddr *addr, socklen_t *addrlen)
+{
+	int res;
+
+	res = getsockname(sockfd, addr, addrlen);
+
+	if (res == -1)
+		errno = gg_win32_map_wsa_error_to_errno(EAGAIN);
+
+	return res;
+}
+
+#undef getsockopt
+int gg_win32_getsockopt(int sockfd, int level, int optname, void *optval, socklen_t *optlen)
+{
+	int res;
+
+	res = getsockopt(sockfd, level, optname, optval, optlen);
+
+	if (res == -1)
+		errno = gg_win32_map_wsa_error_to_errno(EAGAIN);
+
+	return res;
+}
+
+int gg_win32_ioctl(int d, int request, int *argp)
+{
+	int res;
+
+	res = ioctlsocket(d, request, (u_long *)argp);
+
+	if (res == -1)
+		errno = gg_win32_map_wsa_error_to_errno(EAGAIN);
+
+	return res;
+}
+
+#undef listen
+int gg_win32_listen(int sockfd, int backlog)
+{
+	int res;
+
+	res = listen(sockfd, backlog);
+
+	if (res == -1)
+		errno = gg_win32_map_wsa_error_to_errno(EAGAIN);
+
+	return res;
+}
+
+#undef recv
+int gg_win32_recv(int sockfd, void *buf, size_t len, int flags)
+{
+	int res;
+
+	res = recv(sockfd, buf, len, flags);
+
+	if (res == -1)
+		errno = gg_win32_map_wsa_error_to_errno(EAGAIN);
+
+	return res;
+}
+
+#undef send
+int gg_win32_send(int sockfd, const void *buf, size_t len, int flags)
+{
+	int res;
+
+	res = send(sockfd, buf, len, flags);
+
+	if (res == -1)
+		errno = gg_win32_map_wsa_error_to_errno(EAGAIN);
+
+	return res;
+}
+
+#undef setsockopt
+int gg_win32_setsockopt(int sockfd, int level, int optname, const void *optval, socklen_t optlen)
+{
+	int res;
+
+	res = setsockopt(sockfd, level, optname, optval, optlen);
+
+	if (res == -1)
+		errno = gg_win32_map_wsa_error_to_errno(EAGAIN);
+
+	return res;
+}
+
+#undef socket
+int gg_win32_socket(int domain, int type, int protocol)
+{
+	int res;
+
+	res = socket(domain, type, protocol);
+
+	if (res == -1)
+		errno = gg_win32_map_wsa_error_to_errno(EAGAIN);
+
+	return res;
+}
+
+#endif /* _WIN32 */

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