Added GPL license header to all source files

[dockapps/wmnotify.git] / src / network.c

diff --git a/src/network.c b/src/network.c
index 2520000..e264205 100644 (file)
--- a/src/network.c
+++ b/src/network.c
@@ -1,5 +1,22 @@
-/* network.c -- common routines for POP3 and IMAP protocols */
-
+/*
+ * network.c -- common routines for POP3 and IMAP protocols
+ *
+ * Copyright (C) 2003 Hugo Villeneuve <hugo@hugovil.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
 
 /* Define filename_M */
 #define NETWORK_M 1
@@ -30,6 +47,11 @@
 #define RECV_FLAGS 0
 
 
+/* Common buffers for IMAP4 and POP3. */
+char tx_buffer[WMNOTIFY_BUFSIZE + 1];
+char rx_buffer[WMNOTIFY_BUFSIZE + 1];
+
+
 int
 SocketOpen( char *server_name, int port )
 {
@@ -40,7 +62,7 @@ SocketOpen( char *server_name, int port )
   
   hostinfo = gethostbyname(server_name);
   if( hostinfo == NULL ) {
-    perror( PACKAGE );
+    herror( PACKAGE );
     ErrorLocation( __FILE__, __LINE__ );
     goto error;
   }
@@ -101,7 +123,7 @@ ConnectionEstablish( char *server_name, int port )
   }
 
 #if HAVE_SSL
-  if( wmnotify_infos.use_ssl == TRUE ) {
+  if( wmnotify_infos.use_ssl == true ) {
     int status;
     status = InitSSL( wmnotify_infos.sock_fd );
     if( status != EXIT_SUCCESS ) {
@@ -132,7 +154,7 @@ int
 ConnectionTerminate( void )
 {
 #if HAVE_SSL
-  if( wmnotify_infos.use_ssl == TRUE ) {
+  if( wmnotify_infos.use_ssl == true ) {
     SSL_free( ssl_infos.ssl ); /* release connection state */
   }
 #endif
@@ -140,7 +162,7 @@ ConnectionTerminate( void )
   close( wmnotify_infos.sock_fd ); /* close socket */
 
 #if HAVE_SSL
-  if( wmnotify_infos.use_ssl == TRUE ) {
+  if( wmnotify_infos.use_ssl == true ) {
     SSL_CTX_free( ssl_infos.ctx ); /* release context */
   }
 #endif
@@ -155,7 +177,7 @@ WmnotifySendData( char *buffer, int size )
   int len;
 
 #if HAVE_SSL
-  if( wmnotify_infos.use_ssl == TRUE ) {
+  if( wmnotify_infos.use_ssl == true ) {
     len = SSL_write( ssl_infos.ssl, buffer, size ); /* Encrypt & send message */
     if( len <= 0 ) {
       SSL_get_error( ssl_infos.ssl, len );
@@ -188,14 +210,30 @@ WmnotifyGetResponse( char *buffer, int max_size )
   int len;
 
 #if HAVE_SSL
-  if( wmnotify_infos.use_ssl == TRUE ) {
-    len = SSL_read( ssl_infos.ssl, buffer, max_size ); /* Get reply & decrypt */
-    if( len <= 0 ) {
-      SSL_get_error( ssl_infos.ssl, len );
-      len = -1;
+  if( wmnotify_infos.use_ssl == true ) {
+    len = SSL_read( ssl_infos.ssl, buffer, max_size ); /* Get reply & decrypt. */
+    switch( SSL_get_error( ssl_infos.ssl, len ) ) {
+    case SSL_ERROR_NONE:
+      /* Success. */
+      break;
+    case SSL_ERROR_ZERO_RETURN:
+      fprintf( stderr, "%s: SSL_read() connection closed.\n", PACKAGE );
+      break;
+    case SSL_ERROR_SYSCALL:
+      fprintf( stderr, "%s: SSL_read() I/O error.\n", PACKAGE );
+      goto ssl_error;
+    case SSL_ERROR_SSL:
+      fprintf( stderr, "%s: SSL_read() protocol error.\n", PACKAGE );
+      goto ssl_error;
+    default:
+      fprintf( stderr, "%s: SSL_read() error.\n", PACKAGE );
+      goto ssl_error;
     }
-    
+
     return len;
+
+  ssl_error:
+    return -1;
   }
 #endif /* HAVE_SSL */