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/*
* 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;
}
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