1 files changed, 75 insertions, 0 deletions
diff --git a/noncore/net/wellenreiter/daemon/source/sendgui.cc b/noncore/net/wellenreiter/daemon/source/sendgui.cc
new file mode 100644
index 0000000..48ad5b8
--- a/dev/null
+++ b/noncore/net/wellenreiter/daemon/source/sendgui.cc
@@ -0,0 +1,75 @@
+/* 
+ * Send string to GUI
+ *
+ * $Id$ 
+ */
+
+#include "config.hh"
+#include "sendgui.hh"
+#include "log.hh"
+
+/* Simple dummy for alarm timer */
+static void alarmdummy(int signo) 
+{ 
+  alarm (0);
+}
+
+/* Connect to given IP on given port */
+int connect_server(int *sock, unsigned int ipaddr, int port) 
+{
+  struct sockaddr_in saddr;
+  int retval=0;
+
+  *sock = socket (PF_INET, SOCK_STREAM, 0);
+  saddr.sin_family = PF_INET;
+  saddr.sin_port = htons (port);
+  saddr.sin_addr.s_addr = ipaddr;
+
+  signal (SIGALRM, alarmdummy);
+  siginterrupt (SIGALRM, 1);
+  
+  alarm(5);
+  retval=connect (*sock, (struct sockaddr *) &saddr, sizeof (saddr));
+  alarm(0);
+  
+  if(retval < 0)
+  {
+    close (*sock);
+    return 0;
+  }
+
+ return 1;
+}
+
+/* Send a string to the GUI */
+int sendgui(const char *string, ...) 
+{
+  int sock=0;
+  char buffer[4096];
+  va_list ap;
+
+  /* Generate string */
+  memset(buffer, 0, sizeof(buffer));
+  va_start(ap, string);
+  vsnprintf(buffer, sizeof(buffer)-1, string, ap);
+  va_end(ap);
+
+  if(!connect_server(&sock, inet_addr(GUIADDR), GUIPORT)) 
+  {
+    log_err("Connect to GUI at '%s' failed: %s", GUIADDR, strerror(errno));
+    return 0;
+  }
+
+  if(write(sock, buffer, sizeof(buffer)) < 0)
+  {
+    log_err("Cannot write to socket: %s", strerror(errno));
+    close(sock);
+    return 0;
+  }
+
+  if(close(sock) < 0)
+    log_err("Cannot close socket: %s", strerror(errno));
+
+  return 1;
+}
+