1 files changed, 421 insertions, 415 deletions
diff --git a/libxcb/src/xcb_util.c b/libxcb/src/xcb_util.c
index 3516186fa..53c05e0b8 100644
--- a/libxcb/src/xcb_util.c
+++ b/libxcb/src/xcb_util.c
@@ -1,415 +1,421 @@
-/* Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- * 
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- * Except as contained in this notice, the names of the authors or their
- * institutions shall not be used in advertising or otherwise to promote the
- * sale, use or other dealings in this Software without prior written
- * authorization from the authors.
- */
-
-/* Utility functions implementable using only public APIs. */
-
-#include <assert.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <limits.h>
-#include <sys/un.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#ifdef DNETCONN
-#include <netdnet/dnetdb.h>
-#include <netdnet/dn.h>
-#endif
-#include <netdb.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <string.h>
-
-#include "xcb.h"
-#include "xcbext.h"
-#include "xcbint.h"
-
-static const int error_connection = 1;
-
-int xcb_popcount(uint32_t mask)
-{
-    uint32_t y;
-    y = (mask >> 1) & 033333333333;
-    y = mask - y - ((y >> 1) & 033333333333);
-    return ((y + (y >> 3)) & 030707070707) % 077;
-}
-
-static int _xcb_parse_display(const char *name, char **host, char **protocol,
-                      int *displayp, int *screenp)
-{
-    int len, display, screen;
-    char *slash, *colon, *dot, *end;
-    if(!name || !*name)
-        name = getenv("DISPLAY");
-    if(!name)
-        return 0;
-
-#ifdef HAVE_LAUNCHD
-    if(strncmp(name, "/tmp/launch", 11) == 0)
-        slash = NULL;
-    else
-#endif
-    slash = strrchr(name, '/');
-
-    if (slash) {
-        len = slash - name;
-        if (protocol) {
-            *protocol = malloc(len + 1);
-            if(!*protocol)
-                return 0;
-            memcpy(*protocol, name, len);
-            (*protocol)[len] = '\0';
-        }
-        name = slash + 1;
-    } else
-        if (protocol)
-            *protocol = NULL;
-
-    colon = strrchr(name, ':');
-    if(!colon)
-        return 0;
-    len = colon - name;
-    ++colon;
-    display = strtoul(colon, &dot, 10);
-    if(dot == colon)
-        return 0;
-    if(*dot == '\0')
-        screen = 0;
-    else
-    {
-        if(*dot != '.')
-            return 0;
-        ++dot;
-        screen = strtoul(dot, &end, 10);
-        if(end == dot || *end != '\0')
-            return 0;
-    }
-    /* At this point, the display string is fully parsed and valid, but
-     * the caller's memory is untouched. */
-
-    *host = malloc(len + 1);
-    if(!*host)
-        return 0;
-    memcpy(*host, name, len);
-    (*host)[len] = '\0';
-    *displayp = display;
-    if(screenp)
-        *screenp = screen;
-    return 1;
-}
-
-int xcb_parse_display(const char *name, char **host, int *displayp,
-                             int *screenp)
-{
-    return _xcb_parse_display(name, host, NULL, displayp, screenp);
-}
-
-static int _xcb_open_tcp(char *host, char *protocol, const unsigned short port);
-static int _xcb_open_unix(char *protocol, const char *file);
-#ifdef DNETCONN
-static int _xcb_open_decnet(const char *host, char *protocol, const unsigned short port);
-#endif
-#ifdef HAVE_ABSTRACT_SOCKETS
-static int _xcb_open_abstract(char *protocol, const char *file, size_t filelen);
-#endif
-
-static int _xcb_open(char *host, char *protocol, const int display)
-{
-    int fd;
-    static const char unix_base[] = "/tmp/.X11-unix/X";
-    const char *base = unix_base;
-    size_t filelen;
-    char *file = NULL;
-    int actual_filelen;
-
-    if(*host)
-    {
-#ifdef HAVE_LAUNCHD
-        if(strncmp(host, "/tmp/launch", 11) == 0) {
-	    base = host;
-        } else {
-#endif
-
-#ifdef DNETCONN
-        /* DECnet displays have two colons, so _xcb_parse_display will have
-           left one at the end.  However, an IPv6 address can end with *two*
-           colons, so only treat this as a DECnet display if host ends with
-           exactly one colon. */
-        char *colon = strchr(host, ':');
-        if(colon && *(colon+1) == '\0')
-        {
-            *colon = '\0';
-            return _xcb_open_decnet(host, protocol, display);
-        }
-        else
-#endif
-            if (protocol
-                || strcmp("unix",host)) { /* follow the old unix: rule */
-
-                /* display specifies TCP */
-                unsigned short port = X_TCP_PORT + display;
-                return _xcb_open_tcp(host, protocol, port);
-            }
-#ifdef HAVE_LAUNCHD
-        }
-#endif
-    }
-
-    filelen = strlen(base) + 1 + sizeof(display) * 3 + 1;
-    file = malloc(filelen);
-    if(file == NULL)
-        return -1;
-
-    /* display specifies Unix socket */
-#ifdef HAVE_LAUNCHD
-    if(base == host)
-        actual_filelen = snprintf(file, filelen, "%s:%d", base, display);
-    else
-#endif
-        actual_filelen = snprintf(file, filelen, "%s%d", base, display);
-    if(actual_filelen < 0)
-    {
-        free(file);
-        return -1;
-    }
-    /* snprintf may truncate the file */
-    filelen = MIN(actual_filelen, filelen - 1);
-#ifdef HAVE_ABSTRACT_SOCKETS
-    fd = _xcb_open_abstract(protocol, file, filelen);
-    if (fd >= 0 || (errno != ENOENT && errno != ECONNREFUSED))
-    {
-        free(file);
-        return fd;
-    }
-
-#endif
-    fd = _xcb_open_unix(protocol, file);
-    free(file);
-
-    return fd;
-}
-
-static int _xcb_socket(int family, int type, int proto)
-{
-    int fd;
-
-#ifdef SOCK_CLOEXEC
-    fd = socket(family, type | SOCK_CLOEXEC, proto);
-    if (fd == -1 && errno == EINVAL)
-#endif
-    {
-	fd = socket(family, type, proto);
-	if (fd >= 0)
-	    fcntl(fd, F_SETFD, FD_CLOEXEC);
-    }
-    return fd;
-}
-
-#ifdef DNETCONN
-static int _xcb_open_decnet(const char *host, const char *protocol, const unsigned short port)
-{
-    int fd;
-    struct sockaddr_dn addr;
-    struct accessdata_dn accessdata;
-    struct nodeent *nodeaddr = getnodebyname(host);
-
-    if(!nodeaddr)
-        return -1;
-    if (protocol && strcmp("dnet",protocol))
-        return -1;
-    addr.sdn_family = AF_DECnet;
-
-    addr.sdn_add.a_len = nodeaddr->n_length;
-    memcpy(addr.sdn_add.a_addr, nodeaddr->n_addr, addr.sdn_add.a_len);
-
-    addr.sdn_objnamel = sprintf((char *)addr.sdn_objname, "X$X%d", port);
-    if(addr.sdn_objnamel < 0)
-        return -1;
-    addr.sdn_objnum = 0;
-
-    fd = _xcb_socket(PF_DECnet, SOCK_STREAM, 0);
-    if(fd == -1)
-        return -1;
-
-    memset(&accessdata, 0, sizeof(accessdata));
-    accessdata.acc_accl = sprintf((char*)accessdata.acc_acc, "%d", getuid());
-    if(accessdata.acc_accl < 0)
-        return -1;
-    setsockopt(fd, DNPROTO_NSP, SO_CONACCESS, &accessdata, sizeof(accessdata));
-
-    if(connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1) {
-        close(fd);
-        return -1;
-    }
-    return fd;
-}
-#endif
-
-static int _xcb_open_tcp(char *host, char *protocol, const unsigned short port)
-{
-    int fd = -1;
-    struct addrinfo hints;
-    char service[6]; /* "65535" with the trailing '\0' */
-    struct addrinfo *results, *addr;
-    char *bracket;
-
-    if (protocol && strcmp("tcp",protocol))
-        return -1;
-
-    memset(&hints, 0, sizeof(hints));
-#ifdef AI_ADDRCONFIG
-    hints.ai_flags |= AI_ADDRCONFIG;
-#endif
-#ifdef AI_NUMERICSERV
-    hints.ai_flags |= AI_NUMERICSERV;
-#endif
-    hints.ai_family = AF_UNSPEC;
-    hints.ai_socktype = SOCK_STREAM;
-
-#ifdef AF_INET6
-    /* Allow IPv6 addresses enclosed in brackets. */
-    if(host[0] == '[' && (bracket = strrchr(host, ']')) && bracket[1] == '\0')
-    {
-        *bracket = '\0';
-        ++host;
-        hints.ai_flags |= AI_NUMERICHOST;
-        hints.ai_family = AF_INET6;
-    }
-#endif
-
-    snprintf(service, sizeof(service), "%hu", port);
-    if(getaddrinfo(host, service, &hints, &results))
-        /* FIXME: use gai_strerror, and fill in error connection */
-        return -1;
-
-    for(addr = results; addr; addr = addr->ai_next)
-    {
-        fd = _xcb_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
-        if(fd >= 0) {
-            int on = 1;
-            setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on));
-	    setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof(on));
-
-            if (connect(fd, addr->ai_addr, addr->ai_addrlen) >= 0)
-                break;
-            close(fd);
-            fd = -1;
-        }
-    }
-    freeaddrinfo(results);
-    return fd;
-}
-
-static int _xcb_open_unix(char *protocol, const char *file)
-{
-    int fd;
-    struct sockaddr_un addr;
-
-    if (protocol && strcmp("unix",protocol))
-        return -1;
-
-    strcpy(addr.sun_path, file);
-    addr.sun_family = AF_UNIX;
-#ifdef HAVE_SOCKADDR_SUN_LEN
-    addr.sun_len = SUN_LEN(&addr);
-#endif
-    fd = _xcb_socket(AF_UNIX, SOCK_STREAM, 0);
-    if(fd == -1)
-        return -1;
-    if(connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1) {
-        close(fd);
-        return -1;
-    }
-    return fd;
-}
-
-#ifdef HAVE_ABSTRACT_SOCKETS
-static int _xcb_open_abstract(char *protocol, const char *file, size_t filelen)
-{
-    int fd;
-    struct sockaddr_un addr = {0};
-    socklen_t namelen;
-
-    if (protocol && strcmp("unix",protocol))
-        return -1;
-
-    strcpy(addr.sun_path + 1, file);
-    addr.sun_family = AF_UNIX;
-    namelen = offsetof(struct sockaddr_un, sun_path) + 1 + filelen;
-#ifdef HAVE_SOCKADDR_SUN_LEN
-    addr.sun_len = 1 + filelen;
-#endif
-    fd = _xcb_socket(AF_UNIX, SOCK_STREAM, 0);
-    if (fd == -1)
-        return -1;
-    if (connect(fd, (struct sockaddr *) &addr, namelen) == -1) {
-        close(fd);
-        return -1;
-    }
-    return fd;
-}
-#endif
-
-xcb_connection_t *xcb_connect(const char *displayname, int *screenp)
-{
-    return xcb_connect_to_display_with_auth_info(displayname, NULL, screenp);
-}
-
-xcb_connection_t *xcb_connect_to_display_with_auth_info(const char *displayname, xcb_auth_info_t *auth, int *screenp)
-{
-    int fd, display = 0;
-    char *host;
-    char *protocol;
-    xcb_auth_info_t ourauth;
-    xcb_connection_t *c;
-
-    int parsed = _xcb_parse_display(displayname, &host, &protocol, &display, screenp);
-    
-    if(!parsed)
-        return (xcb_connection_t *) &error_connection;
-    else
-        fd = _xcb_open(host, protocol, display);
-    free(host);
-
-    if(fd == -1)
-        return (xcb_connection_t *) &error_connection;
-
-    if(auth)
-        return xcb_connect_to_fd(fd, auth);
-
-    if(_xcb_get_auth_info(fd, &ourauth, display))
-    {
-        c = xcb_connect_to_fd(fd, &ourauth);
-        free(ourauth.name);
-        free(ourauth.data);
-    }
-    else
-        c = xcb_connect_to_fd(fd, 0);
-
-    return c;
-}
+/* Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ * Except as contained in this notice, the names of the authors or their
+ * institutions shall not be used in advertising or otherwise to promote the
+ * sale, use or other dealings in this Software without prior written
+ * authorization from the authors.
+ */
+
+/* Utility functions implementable using only public APIs. */
+
+#include <assert.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <limits.h>
+#include <sys/un.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#ifdef DNETCONN
+#include <netdnet/dnetdb.h>
+#include <netdnet/dn.h>
+#endif
+#include <netdb.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+
+#include "xcb.h"
+#include "xcbext.h"
+#include "xcbint.h"
+
+static const int error_connection = 1;
+
+int xcb_popcount(uint32_t mask)
+{
+    uint32_t y;
+    y = (mask >> 1) & 033333333333;
+    y = mask - y - ((y >> 1) & 033333333333);
+    return ((y + (y >> 3)) & 030707070707) % 077;
+}
+
+static int _xcb_parse_display(const char *name, char **host, char **protocol,
+                      int *displayp, int *screenp)
+{
+    int len, display, screen;
+    char *slash, *colon, *dot, *end;
+    if(!name || !*name)
+        name = getenv("DISPLAY");
+    if(!name)
+        return 0;
+
+#ifdef HAVE_LAUNCHD
+    if(strncmp(name, "/tmp/launch", 11) == 0)
+        slash = NULL;
+    else
+#endif
+    slash = strrchr(name, '/');
+
+    if (slash) {
+        len = slash - name;
+        if (protocol) {
+            *protocol = malloc(len + 1);
+            if(!*protocol)
+                return 0;
+            memcpy(*protocol, name, len);
+            (*protocol)[len] = '\0';
+        }
+        name = slash + 1;
+    } else
+        if (protocol)
+            *protocol = NULL;
+
+    colon = strrchr(name, ':');
+    if(!colon)
+        return 0;
+    len = colon - name;
+    ++colon;
+    display = strtoul(colon, &dot, 10);
+    if(dot == colon)
+        return 0;
+    if(*dot == '\0')
+        screen = 0;
+    else
+    {
+        if(*dot != '.')
+            return 0;
+        ++dot;
+        screen = strtoul(dot, &end, 10);
+        if(end == dot || *end != '\0')
+            return 0;
+    }
+    /* At this point, the display string is fully parsed and valid, but
+     * the caller's memory is untouched. */
+
+    *host = malloc(len + 1);
+    if(!*host)
+        return 0;
+    memcpy(*host, name, len);
+    (*host)[len] = '\0';
+    *displayp = display;
+    if(screenp)
+        *screenp = screen;
+    return 1;
+}
+
+int xcb_parse_display(const char *name, char **host, int *displayp,
+                             int *screenp)
+{
+    return _xcb_parse_display(name, host, NULL, displayp, screenp);
+}
+
+static int _xcb_open_tcp(const char *host, char *protocol, const unsigned short port);
+static int _xcb_open_unix(char *protocol, const char *file);
+#ifdef DNETCONN
+static int _xcb_open_decnet(const char *host, char *protocol, const unsigned short port);
+#endif
+#ifdef HAVE_ABSTRACT_SOCKETS
+static int _xcb_open_abstract(char *protocol, const char *file, size_t filelen);
+#endif
+
+static int _xcb_open(const char *host, char *protocol, const int display)
+{
+    int fd;
+    static const char unix_base[] = "/tmp/.X11-unix/X";
+    const char *base = unix_base;
+    size_t filelen;
+    char *file = NULL;
+    int actual_filelen;
+
+#ifdef HAVE_LAUNCHD
+        if(strncmp(host, "/tmp/launch", 11) == 0) {
+		base = host;
+		host = "";
+		protocol = NULL;
+        }
+#endif
+
+    if(*host || protocol)
+    {
+#ifdef DNETCONN
+        /* DECnet displays have two colons, so _xcb_parse_display will have
+           left one at the end.  However, an IPv6 address can end with *two*
+           colons, so only treat this as a DECnet display if host ends with
+           exactly one colon. */
+        char *colon = strchr(host, ':');
+        if(colon && *(colon+1) == '\0')
+        {
+            *colon = '\0';
+            return _xcb_open_decnet(host, protocol, display);
+        }
+        else
+#endif
+            if (protocol
+                || strcmp("unix",host)) { /* follow the old unix: rule */
+
+                /* display specifies TCP */
+                unsigned short port = X_TCP_PORT + display;
+                return _xcb_open_tcp(host, protocol, port);
+            }
+    }
+
+    filelen = strlen(base) + 1 + sizeof(display) * 3 + 1;
+    file = malloc(filelen);
+    if(file == NULL)
+        return -1;
+
+    /* display specifies Unix socket */
+#ifdef HAVE_LAUNCHD
+    if(strncmp(base, "/tmp/launch", 11) == 0)
+        actual_filelen = snprintf(file, filelen, "%s:%d", base, display);
+    else
+#endif
+        actual_filelen = snprintf(file, filelen, "%s%d", base, display);
+    if(actual_filelen < 0)
+    {
+        free(file);
+        return -1;
+    }
+    /* snprintf may truncate the file */
+    filelen = MIN(actual_filelen, filelen - 1);
+#ifdef HAVE_ABSTRACT_SOCKETS
+    fd = _xcb_open_abstract(protocol, file, filelen);
+    if (fd >= 0 || (errno != ENOENT && errno != ECONNREFUSED))
+    {
+        free(file);
+        return fd;
+    }
+
+#endif
+    fd = _xcb_open_unix(protocol, file);
+    free(file);
+
+    return fd;
+}
+
+static int _xcb_socket(int family, int type, int proto)
+{
+    int fd;
+
+#ifdef SOCK_CLOEXEC
+    fd = socket(family, type | SOCK_CLOEXEC, proto);
+    if (fd == -1 && errno == EINVAL)
+#endif
+    {
+	fd = socket(family, type, proto);
+	if (fd >= 0)
+	    fcntl(fd, F_SETFD, FD_CLOEXEC);
+    }
+    return fd;
+}
+
+#ifdef DNETCONN
+static int _xcb_open_decnet(const char *host, const char *protocol, const unsigned short port)
+{
+    int fd;
+    struct sockaddr_dn addr;
+    struct accessdata_dn accessdata;
+    struct nodeent *nodeaddr = getnodebyname(host);
+
+    if(!nodeaddr)
+        return -1;
+    if (protocol && strcmp("dnet",protocol))
+        return -1;
+    addr.sdn_family = AF_DECnet;
+
+    addr.sdn_add.a_len = nodeaddr->n_length;
+    memcpy(addr.sdn_add.a_addr, nodeaddr->n_addr, addr.sdn_add.a_len);
+
+    addr.sdn_objnamel = sprintf((char *)addr.sdn_objname, "X$X%d", port);
+    if(addr.sdn_objnamel < 0)
+        return -1;
+    addr.sdn_objnum = 0;
+
+    fd = _xcb_socket(PF_DECnet, SOCK_STREAM, 0);
+    if(fd == -1)
+        return -1;
+
+    memset(&accessdata, 0, sizeof(accessdata));
+    accessdata.acc_accl = sprintf((char*)accessdata.acc_acc, "%d", getuid());
+    if(accessdata.acc_accl < 0)
+        return -1;
+    setsockopt(fd, DNPROTO_NSP, SO_CONACCESS, &accessdata, sizeof(accessdata));
+
+    if(connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1) {
+        close(fd);
+        return -1;
+    }
+    return fd;
+}
+#endif
+
+static int _xcb_open_tcp(const char *host, char *protocol, const unsigned short port)
+{
+    int fd = -1;
+    struct addrinfo hints;
+    char service[6]; /* "65535" with the trailing '\0' */
+    struct addrinfo *results, *addr;
+    char *bracket;
+
+    if (protocol && strcmp("tcp",protocol) && strcmp("inet",protocol)
+#ifdef AF_INET6
+	         && strcmp("inet6",protocol)
+#endif
+	)
+        return -1;
+	
+    if (*host == '\0')
+	host = "localhost";
+
+    memset(&hints, 0, sizeof(hints));
+#ifdef AI_ADDRCONFIG
+    hints.ai_flags |= AI_ADDRCONFIG;
+#endif
+#ifdef AI_NUMERICSERV
+    hints.ai_flags |= AI_NUMERICSERV;
+#endif
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+
+#ifdef AF_INET6
+    /* Allow IPv6 addresses enclosed in brackets. */
+    if(host[0] == '[' && (bracket = strrchr(host, ']')) && bracket[1] == '\0')
+    {
+        *bracket = '\0';
+        ++host;
+        hints.ai_flags |= AI_NUMERICHOST;
+        hints.ai_family = AF_INET6;
+    }
+#endif
+
+    snprintf(service, sizeof(service), "%hu", port);
+    if(getaddrinfo(host, service, &hints, &results))
+        /* FIXME: use gai_strerror, and fill in error connection */
+        return -1;
+
+    for(addr = results; addr; addr = addr->ai_next)
+    {
+        fd = _xcb_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
+        if(fd >= 0) {
+            int on = 1;
+            setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on));
+	    setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof(on));
+
+            if (connect(fd, addr->ai_addr, addr->ai_addrlen) >= 0)
+                break;
+            close(fd);
+            fd = -1;
+        }
+    }
+    freeaddrinfo(results);
+    return fd;
+}
+
+static int _xcb_open_unix(char *protocol, const char *file)
+{
+    int fd;
+    struct sockaddr_un addr;
+
+    if (protocol && strcmp("unix",protocol))
+        return -1;
+
+    strcpy(addr.sun_path, file);
+    addr.sun_family = AF_UNIX;
+#ifdef HAVE_SOCKADDR_SUN_LEN
+    addr.sun_len = SUN_LEN(&addr);
+#endif
+    fd = _xcb_socket(AF_UNIX, SOCK_STREAM, 0);
+    if(fd == -1)
+        return -1;
+    if(connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1) {
+        close(fd);
+        return -1;
+    }
+    return fd;
+}
+
+#ifdef HAVE_ABSTRACT_SOCKETS
+static int _xcb_open_abstract(char *protocol, const char *file, size_t filelen)
+{
+    int fd;
+    struct sockaddr_un addr = {0};
+    socklen_t namelen;
+
+    if (protocol && strcmp("unix",protocol))
+        return -1;
+
+    strcpy(addr.sun_path + 1, file);
+    addr.sun_family = AF_UNIX;
+    namelen = offsetof(struct sockaddr_un, sun_path) + 1 + filelen;
+#ifdef HAVE_SOCKADDR_SUN_LEN
+    addr.sun_len = 1 + filelen;
+#endif
+    fd = _xcb_socket(AF_UNIX, SOCK_STREAM, 0);
+    if (fd == -1)
+        return -1;
+    if (connect(fd, (struct sockaddr *) &addr, namelen) == -1) {
+        close(fd);
+        return -1;
+    }
+    return fd;
+}
+#endif
+
+xcb_connection_t *xcb_connect(const char *displayname, int *screenp)
+{
+    return xcb_connect_to_display_with_auth_info(displayname, NULL, screenp);
+}
+
+xcb_connection_t *xcb_connect_to_display_with_auth_info(const char *displayname, xcb_auth_info_t *auth, int *screenp)
+{
+    int fd, display = 0;
+    char *host;
+    char *protocol;
+    xcb_auth_info_t ourauth;
+    xcb_connection_t *c;
+
+    int parsed = _xcb_parse_display(displayname, &host, &protocol, &display, screenp);
+    
+    if(!parsed)
+        return (xcb_connection_t *) &error_connection;
+    else
+        fd = _xcb_open(host, protocol, display);
+    free(host);
+
+    if(fd == -1)
+        return (xcb_connection_t *) &error_connection;
+
+    if(auth)
+        return xcb_connect_to_fd(fd, auth);
+
+    if(_xcb_get_auth_info(fd, &ourauth, display))
+    {
+        c = xcb_connect_to_fd(fd, &ourauth);
+        free(ourauth.name);
+        free(ourauth.data);
+    }
+    else
+        c = xcb_connect_to_fd(fd, 0);
+
+    return c;
+}