X-Git-Url: http://git.demorecorder.com/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fxcb_conn.c;h=803f7aabd2cf87d5e2f35f28638f6d81605ea96d;hb=7f5cfcc2fd0168d505504cc088bfdcba5c71f0ea;hp=251d62e01dbf63161c7339deedac59fe66fc90b0;hpb=f916062edf0e04cd4e0a78f6975892f59fae3b60;p=free-sw%2Fxcb%2Flibxcb

diff --git a/src/xcb_conn.c b/src/xcb_conn.c
index 251d62e..803f7aa 100644
--- a/src/xcb_conn.c
+++ b/src/xcb_conn.c
@@ -42,6 +42,11 @@
 #include <sys/select.h>
 #endif
 
+/* SHUT_RDWR is fairly recent and is not available on all platforms */
+#if !defined(SHUT_RDWR)
+#define SHUT_RDWR 2
+#endif
+
 typedef struct {
     uint8_t  status;
     uint8_t  pad0[5];
@@ -102,10 +107,7 @@ static int write_setup(xcb_connection_t *c, xcb_auth_info_t *auth_info)
     assert(count <= (int) (sizeof(parts) / sizeof(*parts)));
 
     pthread_mutex_lock(&c->iolock);
-    {
-        struct iovec *parts_ptr = parts;
-        ret = _xcb_out_send(c, &parts_ptr, &count);
-    }
+    ret = _xcb_out_send(c, parts, count);
     pthread_mutex_unlock(&c->iolock);
     return ret;
 }
@@ -210,9 +212,19 @@ xcb_connection_t *xcb_connect_to_fd(int fd, xcb_auth_info_t *auth_info)
 {
     xcb_connection_t* c;
 
+#ifndef USE_POLL
+    if(fd >= FD_SETSIZE) /* would overflow in FD_SET */
+    {
+        close(fd);
+        return (xcb_connection_t *) &error_connection;
+    }
+#endif
+
     c = calloc(1, sizeof(xcb_connection_t));
-    if(!c)
+    if(!c) {
+        close(fd);
         return (xcb_connection_t *) &error_connection;
+    }
 
     c->fd = fd;
 
@@ -240,6 +252,9 @@ void xcb_disconnect(xcb_connection_t *c)
         return;
 
     free(c->setup);
+
+    /* disallow further sends and receives */
+    shutdown(c->fd, SHUT_RDWR);
     close(c->fd);
 
     pthread_mutex_destroy(&c->iolock);
@@ -303,15 +318,15 @@ int _xcb_conn_wait(xcb_connection_t *c, pthread_cond_t *cond, struct iovec **vec
     pthread_mutex_unlock(&c->iolock);
     do {
 #if USE_POLL
-    ret = poll(&fd, 1, -1);
+        ret = poll(&fd, 1, -1);
 #else
-	ret = select(c->fd + 1, &rfds, &wfds, 0, 0);
+        ret = select(c->fd + 1, &rfds, &wfds, 0, 0);
 #endif
     } while (ret == -1 && errno == EINTR);
-    if (ret < 0)
+    if(ret < 0)
     {
         _xcb_conn_shutdown(c);
-	ret = 0;
+        ret = 0;
     }
     pthread_mutex_lock(&c->iolock);