X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/ab0873ab80d0c927315329be0cbeb96bb4ace89a..c85623f918b8a6c639afc15604414f9b113bb20d:/winnet.c

diff --git a/winnet.c b/winnet.c
index 0b93fcd2..f617b0fc 100644
--- a/winnet.c
+++ b/winnet.c
@@ -59,7 +59,7 @@
 	((ntohl(addr.s_addr) & 0xFF000000L) == 0x7F000000L)
 
 struct Socket_tag {
-    struct socket_function_table *fn;
+    const struct socket_function_table *fn;
     /* the above variable absolutely *must* be the first in this structure */
     char *error;
     SOCKET s;
@@ -224,7 +224,7 @@ char *winsock_error_string(int error)
     }
 }
 
-SockAddr sk_namelookup(char *host, char **canonicalname)
+SockAddr sk_namelookup(const char *host, char **canonicalname)
 {
     SockAddr ret = smalloc(sizeof(struct SockAddr_tag));
     unsigned long a;
@@ -362,7 +362,7 @@ SockAddr sk_namelookup(char *host, char **canonicalname)
     return ret;
 }
 
-SockAddr sk_nonamelookup(char *host)
+SockAddr sk_nonamelookup(const char *host)
 {
     SockAddr ret = smalloc(sizeof(struct SockAddr_tag));
     ret->error = NULL;
@@ -460,8 +460,8 @@ static void sk_tcp_flush(Socket s)
 }
 
 static void sk_tcp_close(Socket s);
-static int sk_tcp_write(Socket s, char *data, int len);
-static int sk_tcp_write_oob(Socket s, char *data, int len);
+static int sk_tcp_write(Socket s, const char *data, int len);
+static int sk_tcp_write_oob(Socket s, const char *data, int len);
 static void sk_tcp_set_private_ptr(Socket s, void *ptr);
 static void *sk_tcp_get_private_ptr(Socket s);
 static void sk_tcp_set_frozen(Socket s, int is_frozen);
@@ -471,7 +471,7 @@ extern char *do_select(SOCKET skt, int startup);
 
 Socket sk_register(void *sock, Plug plug)
 {
-    static struct socket_function_table fn_table = {
+    static const struct socket_function_table fn_table = {
 	sk_tcp_plug,
 	sk_tcp_close,
 	sk_tcp_write,
@@ -528,7 +528,7 @@ Socket sk_register(void *sock, Plug plug)
 Socket sk_new(SockAddr addr, int port, int privport, int oobinline,
 	      int nodelay, Plug plug)
 {
-    static struct socket_function_table fn_table = {
+    static const struct socket_function_table fn_table = {
 	sk_tcp_plug,
 	sk_tcp_close,
 	sk_tcp_write,
@@ -706,7 +706,7 @@ Socket sk_new(SockAddr addr, int port, int privport, int oobinline,
 
 Socket sk_newlistener(char *srcaddr, int port, Plug plug, int local_host_only)
 {
-    static struct socket_function_table fn_table = {
+    static const struct socket_function_table fn_table = {
 	sk_tcp_plug,
 	sk_tcp_close,
 	sk_tcp_write,
@@ -924,7 +924,7 @@ void try_send(Actual_Socket s)
     }
 }
 
-static int sk_tcp_write(Socket sock, char *buf, int len)
+static int sk_tcp_write(Socket sock, const char *buf, int len)
 {
     Actual_Socket s = (Actual_Socket) sock;
 
@@ -942,7 +942,7 @@ static int sk_tcp_write(Socket sock, char *buf, int len)
     return bufchain_size(&s->output_data);
 }
 
-static int sk_tcp_write_oob(Socket sock, char *buf, int len)
+static int sk_tcp_write_oob(Socket sock, const char *buf, int len)
 {
     Actual_Socket s = (Actual_Socket) sock;
 
@@ -973,23 +973,8 @@ int select_result(WPARAM wParam, LPARAM lParam)
 
     /* wParam is the socket itself */
 
-    /*
-     * One user has reported an assertion failure in tree234 which
-     * indicates a null element pointer has been passed to a
-     * find*234 function. The following find234 is the only one in
-     * the whole program that I can see being capable of doing
-     * this, hence I'm forced to conclude that WinSock is capable
-     * of sending me netevent messages with wParam==0. I want to
-     * know what the rest of the message is if it does so!
-     */
-    if (wParam == 0) {
-	char *str;
-	str = dupprintf("Strange WinSock message: wp=%08x lp=%08x",
-			(int)wParam, (int)lParam);
-	logevent(NULL, str);
-	connection_fatal(NULL, str);
-	sfree(str);
-    }
+    if (wParam == 0)
+	return 1;		       /* boggle */
 
     s = find234(sktree, (void *) wParam, cmpforsearch);
     if (!s)