From fbb42b80cb0d299f38e0a4df9b0fa01228b39225 Mon Sep 17 00:00:00 2001
From: Diego Nehab <diego@tecgraf.puc-rio.br>
Date: Mon, 19 Jan 2004 16:18:31 +0000
Subject: Seems to be working on windows and linux.

---
 src/timeout.c |  1 +
 src/wsocket.c | 42 +++++++++++++++++++++++++++++++++---------
 2 files changed, 34 insertions(+), 9 deletions(-)

(limited to 'src')

diff --git a/src/timeout.c b/src/timeout.c
index df199a0..09cb53d 100644
--- a/src/timeout.c
+++ b/src/timeout.c
@@ -21,6 +21,7 @@
 #include <sys/times.h>
 #include <unistd.h>
 #ifndef CLK_TCK
+/* CLI_TCK is now obsolete in Linux */
 #define CLK_TCK (sysconf(_SC_CLK_TCK));
 #endif
 #endif
diff --git a/src/wsocket.c b/src/wsocket.c
index bf92a90..c0e28d9 100644
--- a/src/wsocket.c
+++ b/src/wsocket.c
@@ -53,33 +53,57 @@ void sock_shutdown(p_sock ps, int how)
 /*-------------------------------------------------------------------------*\
 * Creates and sets up a socket
 \*-------------------------------------------------------------------------*/
-const char *sock_create(p_sock ps, int domain, int type, int protocol)
+int sock_create(p_sock ps, int domain, int type, int protocol)
 {
     int val = 1;
     t_sock sock = socket(domain, type, protocol);
-    if (sock == SOCK_INVALID) return sock_createstrerror(); 
+    if (sock == SOCK_INVALID) return IO_ERROR; 
     *ps = sock;
     sock_setnonblocking(ps);
     setsockopt(*ps, SOL_SOCKET, SO_REUSEADDR, (char *) &val, sizeof(val));
-    return NULL;
+    return IO_DONE;
 }
 
 /*-------------------------------------------------------------------------*\
 * Connects or returns error message
 \*-------------------------------------------------------------------------*/
-const char *sock_connect(p_sock ps, SA *addr, socklen_t addr_len)
+int sock_connect(p_sock ps, SA *addr, socklen_t addr_len, int timeout)
 {
-    if (connect(*ps, addr, addr_len) < 0) return sock_connectstrerror();
-    else return NULL;
+    t_sock sock = *ps;
+    if (sock == SOCK_INVALID) return IO_CLOSED;
+    /* if connect fails, we have to find out why */
+    if (connect(sock, addr, addr_len) < 0) {
+        int err;
+        struct timeval tv;
+        fd_set efds, wfds;
+        /* make sure the system is trying to connect */
+        if (WSAGetLastError() != WSAEWOULDBLOCK) return IO_ERROR;
+        tv.tv_sec = timeout / 1000;
+        tv.tv_usec = (timeout % 1000) * 1000;
+        FD_ZERO(&wfds); FD_SET(sock, &wfds);
+        FD_ZERO(&efds); FD_SET(sock, &efds);
+        /* we run select to avoid busy waiting */
+        err = select(0, NULL, &wfds, &efds, timeout >= 0? &tv: NULL);
+        /* if select returned due to an event */
+        if (err > 0 ) {
+            /* the sets tell whether it was a sucess or failure */
+            if (FD_ISSET(sock,&efds) || !FD_ISSET(sock,&wfds)) return IO_ERROR; 
+            else return IO_DONE;
+        /* if nothing happened, we timed out */
+        } else if (err == 0) return IO_TIMEOUT;
+        /* otherwise, I don't know what happened */
+        else return IO_ERROR;
+    /* otherwise, it worked */
+    } else return IO_DONE;
 }
 
 /*-------------------------------------------------------------------------*\
 * Binds or returns error message
 \*-------------------------------------------------------------------------*/
-const char *sock_bind(p_sock ps, SA *addr, socklen_t addr_len)
+int sock_bind(p_sock ps, SA *addr, socklen_t addr_len)
 {
-    if (bind(*ps, addr, addr_len) < 0) return sock_bindstrerror();
-    else return NULL;
+    if (bind(*ps, addr, addr_len) < 0) return IO_ERROR;
+    else return IO_DONE;
 }
 
 /*-------------------------------------------------------------------------*\
-- 
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