diff options
Diffstat (limited to 'libxcb/src/xcb_util.c')
| -rw-r--r-- | libxcb/src/xcb_util.c | 867 |
1 files changed, 448 insertions, 419 deletions
diff --git a/libxcb/src/xcb_util.c b/libxcb/src/xcb_util.c index fde4f85f1..b999ea528 100644 --- a/libxcb/src/xcb_util.c +++ b/libxcb/src/xcb_util.c @@ -1,419 +1,448 @@ -/* 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 <limits.h> -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <stddef.h> -#include <unistd.h> -#include <string.h> - -#ifdef _WIN32 -#include "xcb_windefs.h" -#else -#include <sys/socket.h> -#include <sys/un.h> -#include <netinet/in.h> -#include <netinet/tcp.h> -#include <fcntl.h> -#include <netdb.h> -#endif /* _WIN32 */ - -#include "xcb.h" -#include "xcbext.h" -#include "xcbint.h" - -/* must be after "xcbint.h" to get autoconf #defines */ -#if defined(HAVE_TSOL_LABEL_H) && defined(HAVE_IS_SYSTEM_LABELED) -# include <tsol/label.h> -# include <sys/stat.h> -#endif - -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; -} - -int xcb_sumof(uint8_t *list, int len) -{ - int i, s = 0; - for(i=0; i<len; i++) { - s += *list; - list++; - } - return s; -} - -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) - goto error_out; - len = colon - name; - ++colon; - display = strtoul(colon, &dot, 10); - if(dot == colon) - goto error_out; - if(*dot == '\0') - screen = 0; - else - { - if(*dot != '.') - goto error_out; - ++dot; - screen = strtoul(dot, &end, 10); - if(end == dot || *end != '\0') - goto error_out; - } - /* At this point, the display string is fully parsed and valid, but - * the caller's memory is untouched. */ - - *host = malloc(len + 1); - if(!*host) - goto error_out; - memcpy(*host, name, len); - (*host)[len] = '\0'; - *displayp = display; - if(screenp) - *screenp = screen; - return 1; - -error_out: - if (protocol) { - free(*protocol); - *protocol = NULL; - } - - return 0; -} - -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); -#ifndef _WIN32 -static int _xcb_open_unix(char *protocol, const char *file); -#endif /* !WIN32 */ -#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 protocol or host is "unix", fall through to Unix socket code below */ - if ((!protocol || (strcmp("unix",protocol) != 0)) && - (*host != '\0') && (strcmp("unix",host) != 0)) - { - /* display specifies TCP */ - unsigned short port = X_TCP_PORT + display; - return _xcb_open_tcp(host, protocol, port); - } - -#ifndef _WIN32 -#if defined(HAVE_TSOL_LABEL_H) && defined(HAVE_IS_SYSTEM_LABELED) - /* Check special path for Unix sockets under Solaris Trusted Extensions */ - if (is_system_labeled()) - { - struct stat sbuf; - const char *tsol_base = "/var/tsol/doors/.X11-unix/X"; - char tsol_socket[PATH_MAX]; - - snprintf(tsol_socket, sizeof(tsol_socket), "%s%d", tsol_base, display); - - if (stat(tsol_socket, &sbuf) == 0) - base = tsol_base; - } -#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(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; -#endif /* !_WIN32 */ - return -1; /* if control reaches here then something has gone wrong */ -} - -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); -#ifndef _WIN32 - if (fd >= 0) - fcntl(fd, F_SETFD, FD_CLOEXEC); -#endif - } - return fd; -} - - -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; -} - -#ifndef _WIN32 -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; -} -#endif /* !_WIN32 */ - -#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 = NULL; - char *protocol = NULL; - xcb_auth_info_t ourauth; - xcb_connection_t *c; - - int parsed = _xcb_parse_display(displayname, &host, &protocol, &display, screenp); - - if(!parsed) { - c = (xcb_connection_t *) &error_connection; - goto out; - } else - fd = _xcb_open(host, protocol, display); - - if(fd == -1) { - c = (xcb_connection_t *) &error_connection; - goto out; - } - - if(auth) { - c = xcb_connect_to_fd(fd, auth); - goto out; - } - - 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); - -out: - free(host); - free(protocol); - 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 <limits.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <string.h>
+
+#ifdef _WIN32
+#include "xcb_windefs.h"
+#else
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <fcntl.h>
+#include <netdb.h>
+#endif /* _WIN32 */
+
+#include "xcb.h"
+#include "xcbext.h"
+#include "xcbint.h"
+
+/* must be after "xcbint.h" to get autoconf #defines */
+#if defined(HAVE_TSOL_LABEL_H) && defined(HAVE_IS_SYSTEM_LABELED)
+# include <tsol/label.h>
+# include <sys/stat.h>
+#endif
+
+#ifdef _MSC_VER
+#ifdef close
+#undef close
+#endif
+#define close(fd) closesocket(fd)
+#endif
+
+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;
+}
+
+int xcb_sumof(uint8_t *list, int len)
+{
+ int i, s = 0;
+ for(i=0; i<len; i++) {
+ s += *list;
+ list++;
+ }
+ return s;
+}
+
+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)
+ goto error_out;
+ len = colon - name;
+ ++colon;
+ display = strtoul(colon, &dot, 10);
+ if(dot == colon)
+ goto error_out;
+ if(*dot == '\0')
+ screen = 0;
+ else
+ {
+ if(*dot != '.')
+ goto error_out;
+ ++dot;
+ screen = strtoul(dot, &end, 10);
+ if(end == dot || *end != '\0')
+ goto error_out;
+ }
+ /* At this point, the display string is fully parsed and valid, but
+ * the caller's memory is untouched. */
+
+ *host = malloc(len + 1);
+ if(!*host)
+ goto error_out;
+ memcpy(*host, name, len);
+ (*host)[len] = '\0';
+ *displayp = display;
+ if(screenp)
+ *screenp = screen;
+ return 1;
+
+error_out:
+ if (protocol) {
+ free(*protocol);
+ *protocol = NULL;
+ }
+
+ return 0;
+}
+
+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);
+#ifndef _WIN32
+static int _xcb_open_unix(char *protocol, const char *file);
+#endif /* !WIN32 */
+#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 protocol or host is "unix", fall through to Unix socket code below */
+ if ((!protocol || (strcmp("unix",protocol) != 0)) &&
+ (*host != '\0') && (strcmp("unix",host) != 0))
+ {
+ /* display specifies TCP */
+ unsigned short port = X_TCP_PORT + display;
+ return _xcb_open_tcp(host, protocol, port);
+ }
+
+#ifndef _WIN32
+#if defined(HAVE_TSOL_LABEL_H) && defined(HAVE_IS_SYSTEM_LABELED)
+ /* Check special path for Unix sockets under Solaris Trusted Extensions */
+ if (is_system_labeled())
+ {
+ struct stat sbuf;
+ const char *tsol_base = "/var/tsol/doors/.X11-unix/X";
+ char tsol_socket[PATH_MAX];
+
+ snprintf(tsol_socket, sizeof(tsol_socket), "%s%d", tsol_base, display);
+
+ if (stat(tsol_socket, &sbuf) == 0)
+ base = tsol_base;
+ }
+#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(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;
+#endif /* !_WIN32 */
+ return -1; /* if control reaches here then something has gone wrong */
+}
+
+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);
+#ifndef _WIN32
+ if (fd >= 0)
+ fcntl(fd, F_SETFD, FD_CLOEXEC);
+#endif
+ }
+ return fd;
+}
+
+
+#ifdef WIN32
+int InitWSA(void)
+{
+ static WSADATA wsadata;
+
+ if (!wsadata.wVersion)
+ {
+ ptw32_processInitialize();
+ if (WSAStartup(0x0202, &wsadata))
+ return -1;
+ }
+ return 0;
+}
+#else
+#define InitWSA()
+#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
+
+#ifdef WIN32
+ if (InitWSA()<0)
+ return -1;
+#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) {
+ char 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;
+}
+
+#ifndef _WIN32
+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;
+}
+#endif /* !_WIN32 */
+
+#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 = NULL;
+ char *protocol = NULL;
+ xcb_auth_info_t ourauth;
+ xcb_connection_t *c;
+
+ int parsed = _xcb_parse_display(displayname, &host, &protocol, &display, screenp);
+
+ if(!parsed) {
+ c = (xcb_connection_t *) &error_connection;
+ goto out;
+ } else
+ fd = _xcb_open(host, protocol, display);
+
+ if(fd == -1) {
+ c = (xcb_connection_t *) &error_connection;
+ goto out;
+ }
+
+ if(auth) {
+ c = xcb_connect_to_fd(fd, auth);
+ goto out;
+ }
+
+ 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);
+
+out:
+ free(host);
+ free(protocol);
+ return c;
+}
|