added ListenAddress configuration option

docs/man/sesman.ini.5

@@ -36,6 +36,11 @@ For any of the following parameter, if it's specified more than one time the las
 The options to be specified in the \fB[globals]\fR section are the following:
 .br 
 
+.TP 
+\fBListenAddress\fR=\fIip address\fR
+Specifies sesman listening address. Default is 0.0.0.0 (all interfaces)
+.br 
+
 .TP 
 \fBListenPort\fR=\fIport number\fR
 Specifies sesman listening port. Default is 3350
@@ -165,6 +170,8 @@ This is an example \fBsesman.ini\fR:
 
 [Globals]
 .br 
+ListenAddress=127.0.0.1
+.br 
 ListenPort=3350
 .br 
 EnableUserWindowManager=1

sesman/config.c

@@ -107,6 +107,7 @@ config_read_globals(int file, struct config_sesman* cf, struct list* param_n,
   list_clear(param_n);
 
   /* resetting the struct */
+  cf->listen_address[0] = '\0';
   cf->listen_port[0] = '\0';
   cf->enable_user_wm = 0;
   cf->user_wm[0] = '\0';
@@ -132,9 +133,17 @@ config_read_globals(int file, struct config_sesman* cf, struct list* param_n,
     {
       g_strncpy(cf->listen_port, (char*)list_get_item(param_v, i), 15);
     }
+    else if (0 == g_strcasecmp(buf, SESMAN_CFG_ADDRESS))
+    {
+      g_strncpy(cf->listen_address, (char*)list_get_item(param_v, i), 31);
+    }
   }
 
   /* checking for missing required parameters */
+  if ('\0' == cf->listen_address[0])
+  {
+    g_strncpy(cf->listen_address, "0.0.0.0", 8);
+  }
   if ('\0' == cf->listen_port[0])
   {
     g_strncpy(cf->listen_port, "3350", 5);
@@ -150,6 +159,7 @@ config_read_globals(int file, struct config_sesman* cf, struct list* param_n,
 
   /* showing read config */
   g_printf("sesman config:\r\n");
+  g_printf("\tListenAddress:            %s\r\n", cf->listen_address);
   g_printf("\tListenPort:               %s\r\n", cf->listen_port);
   g_printf("\tEnableUserWindowManager:  %i\r\n", cf->enable_user_wm);
   g_printf("\tUserWindowManager:        %s\r\n", cf->user_wm);

sesman/config.h

@@ -44,6 +44,7 @@
 
 #define SESMAN_CFG_GLOBALS           "Globals"
 #define SESMAN_CFG_DEFWM             "DefaultWindowManager"
+#define SESMAN_CFG_ADDRESS           "ListenAddress"
 #define SESMAN_CFG_PORT              "ListenPort"
 #define SESMAN_CFG_ENABLE_USERWM     "EnableUserWindowManager"
 #define SESMAN_CFG_USERWM            "UserWindowManager"
@@ -141,6 +142,11 @@ struct config_sessions
  */
 struct config_sesman
 {
+  /**
+   * @var listen_address
+   * @brief Listening address
+   */
+  char listen_address[32];
   /**
    * @var listen_port
    * @brief Listening port

sesman/sesman.c

@@ -50,7 +50,7 @@ sesman_main_loop(void)
   log_message(LOG_LEVEL_INFO, "listening...");
   g_sck = g_tcp_socket();
   g_tcp_set_non_blocking(g_sck);
-  error = g_tcp_bind(g_sck, g_cfg.listen_port);
+  error = tcp_bind(g_sck, g_cfg.listen_address, g_cfg.listen_port);
   if (error == 0)
   {
     error = g_tcp_listen(g_sck);

sesman/tcp.c

@@ -21,12 +21,18 @@
  *
  * @file tcp.c
  * @brief Tcp stream funcions
- * @author Jay Sorg
+ * @author Jay Sorg, Simone Fedele
  *
  */
 
 #include "sesman.h"
 
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <stdlib.h>
+#include <string.h>
+
 /*****************************************************************************/
 int DEFAULT_CC
 tcp_force_recv(int sck, char* data, int len)
@@ -124,3 +130,16 @@ tcp_force_send(int sck, char* data, int len)
 
   return 0;
 }
+
+/*****************************************************************************/
+int DEFAULT_CC
+tcp_bind(int sck, char* addr, char* port)
+{
+  struct sockaddr_in s;
+
+  memset(&s, 0, sizeof(struct sockaddr_in));
+  s.sin_family = AF_INET;
+  s.sin_port = htons(atoi(port));
+  s.sin_addr.s_addr = inet_addr(addr);
+  return bind(sck, (struct sockaddr*)&s, sizeof(struct sockaddr_in));
+}

sesman/tcp.h

@@ -21,7 +21,7 @@
  *
  * @file tcp.h
  * @brief Tcp stream functions declarations
- * @author Jay Sorg
+ * @author Jay Sorg, Simone Fedele
  *
  */
 
@@ -52,4 +52,16 @@ tcp_force_recv(int sck, char* data, int len);
 int DEFAULT_CC
 tcp_force_send(int sck, char* data, int len);
 
+/**
+ *
+ * @brief Binds the listening socket
+ * @param sck Listening socket
+ * @param addr Listening address
+ * @param port Listening port
+ * @return 0 on success, -1 on error
+ *
+ */
+int DEFAULT_CC
+tcp_bind(int sck, char* addr, char* port);
+
 #endif