Show correct message ("Remote end closed connection") when we get EOF

on a socket.

I also added a wrapper function around strerror() for dgets_errno, since
we did the same thing in a few places.  This all needs to be cleaned up
a little - the -1 value we use could in theory clash with an actual
errno error number.


git-svn-id: svn://svn.code.sf.net/p/bitchx/code/trunk@104 13b04d17-f746-0410-82c6-800466cd88b0

Changelog

@@ -1,5 +1,7 @@
 [Changes 1.2c01]
 
+* Show correct message when a socket connection is closed cleanly. (caf)
+
 * Add /FSET WHOIS_CALLERID for +g mode notification on hybrid & ratbox. (caf)
 
 * Build script fix to allow plugins to build on x86-64. (caf)

include/newio.h

@@ -12,6 +12,7 @@
 
 extern 	int 	dgets_errno;
 
+	const char *dgets_strerror(int);
 	int 	BX_dgets 			(char *, int, int, int, void *);
 	int 	new_select 		(fd_set *, fd_set *, struct timeval *);
 	int	BX_new_open		(int);

source/dcc.c

@@ -818,7 +818,7 @@ SocketList 	*sl;
 	{
 		case -1:
 		{
-			char *real_tmp = ((dgets_errno == -1) ? "Remote End Closed Connection" : strerror(dgets_errno));
+			const char *real_tmp = dgets_strerror(dgets_errno);
 	                if (do_hook(DCC_LOST_LIST, "%s %s %s", nick, dcc_types[type]->name, real_tmp))
 				put_it("%s", convert_output_format(fget_string_var(FORMAT_DCC_ERROR_FSET), 
 					"%s %s %s %s", update_clock(GET_TIME), 
@@ -952,7 +952,7 @@ SocketList *sl;
 	{
 		case -1:
 		{
-			char *real_tmp = ((dgets_errno == -1) ? "Remote End Closed Connection" : strerror(dgets_errno));
+			const char *real_tmp = dgets_strerror(dgets_errno);
 			if (do_hook(DCC_LOST_LIST, "%s %s %s", nick, dcc_types[type]->name, real_tmp))
 				put_it("%s", convert_output_format(fget_string_var(FORMAT_DCC_ERROR_FSET), 
 					"%s %s %s %s", update_clock(GET_TIME), 

source/newio.c

@@ -100,6 +100,20 @@ void SSL_show_errors(void)
 }
 #endif
 
+/* Wrapper around strerror() for dgets_errno.
+ */
+const char *dgets_strerror(int dgets_errno)
+{
+	switch (dgets_errno)
+	{
+		case -1:
+		return "Remote end closed connection";
+
+		default:
+		return strerror(dgets_errno);
+	}
+}
+
 /*
  * All new dgets -- no more trap doors!
  *
@@ -204,7 +218,7 @@ int BX_dgets (char *str, int des, int buffer, int buffersize, void *ssl_fd)
 		else if (!nbytes && ioe->write_pos == 0)
 		{
 			*str = 0;
-			dgets_errno = errno;
+			dgets_errno = -1;
 			return -1;
 		}
 

source/server.c

@@ -535,7 +535,7 @@ static	time_t	last_timeout = 0;
 						/* Try to make sure output goes to the correct window */
 						if(server_list[i].server_change_refnum > -1)
 							set_display_target_by_winref(server_list[i].server_change_refnum);
-						say("Connection closed from %s: %s", server_list[i].name, (dgets_errno == -1) ? "Remote end closed connection" : strerror(dgets_errno));
+						say("Connection closed from %s: %s", server_list[i].name, dgets_strerror(dgets_errno));
 
 						server_list[i].reconnecting = 1;
 						close_server(i, empty_string);