*/
// #define USE_NCURSES
+/* dont care about ncurses .. go for gtk(2)! */
+#define USE_GTK
#include "ivac.h"
+int usage(void) {
+
+ puts("");
+ puts("usage: ivac <options>");
+ puts("");
+ puts("options:");
+ puts("-h \t\t show this help");
+ puts("-n <name> \t specify your name");
+ puts("-p <port> \t specify port to listen for incoming connections");
+ puts("");
+
+ return SUCCESS;
+}
+
int main(int argc,char **argv) {
/* TESTING BY NOW */
t_ivac ivac;
int i;
- if(argc!=2) {
- printf("\nusage: %s <username>\n\n",argv[0]);
- return ERROR;
+ /* default values */
+ strcpy(ivac.username,"ivac");
+ ivac.net.l_port=IVAC_LISTEN_PORT;
+
+ /* parse argv and change default values */
+ for(i=1;i<argc;i++) {
+ if(argv[i][0]=='-') {
+ switch(argv[i][1]) {
+ case 'h':
+ usage();
+ break;
+ case 'n':
+ strncpy(ivac.username,argv[++i],CHAR_USERNAME);
+ break;
+ case 'p':
+ ivac.net.l_port=atoi(argv[++i]);
+ break;
+ default:
+ usage();
+ break;
+ }
+ }
+ else usage();
}
- /* set username */
- strncpy(ivac.username,argv[1],CHAR_USERNAME);
/* clear challenger struct */
for(i=0;i<MAX_CONNECTIONS;i++)
memset(&(ivac.challenger[i]),0,sizeof(t_challenger));
ivac.input.mode=CONTENT_BUFFER;
input_init(&(ivac.input));
- /* set listen port (futur: read from config or entered later) */
- network_set_listen_port(&(ivac.net),IVAC_LISTEN_PORT);
/* network init */
if(network_init(&(ivac.net))==N_ERROR) {
printf("[ivac] use 'fuser -n tcp %d' to determine the process to kill!\n",
event_math(ivac.net.l_fd,&(ivac.event),READ,ADD);
event_math(0,&(ivac.event),READ,ADD);
+#ifdef USE_NCURSES
/* display init */
- // display_init(&(ivac.display));
+ display_init(&(ivac.display));
+#endif
/* display */
ivac_display(&(ivac.display));
/* start event system - callbacks used: ivac_event_cb + ivac_regular_cb */
event_start(&(ivac.event),(void *)&ivac,ivac_event_cb,ivac_regular_cb);
- // ivac_shutdown(&ivac);
-
return SUCCESS;
}
network_shutdown(&(ivac->net));
input_shutdown(&(ivac->input));
event_stop(&(ivac->event));
- // display_shutdown(&(ivac->display));
+#ifdef USE_NCURSES
+ display_shutdown(&(ivac->display));
+#endif
return SUCCESS;
}
return SUCCESS;
}
+int ivac_send_quit(int channel,t_ivac *ivac) {
+
+ char data[7]; /* one more for \0 */
+
+ data[0]=IVAC_SEND_QUIT;
+ data[1]=4;
+ strcpy(data+2,"quit");
+
+ if(network_send(ivac->net.connection[channel].fd,data,6)==N_ERROR) {
+ puts("[ivac] ivac_send_quit failed");
+ return ERROR;
+ }
+
+ return SUCCESS;
+}
+
int ivac_receive_info(int channel,t_ivac *ivac) {
char data[SEND_N_MAX];
+ char c_str[IVAC_CONSOLE_STRING_LEN];
int count,length;
count=0;
ivac->challenger[channel].av_cap|=data[count+3];
count+=4;
break;
+ case IVAC_SEND_QUIT:
+ if(!(strncmp(data+count+2,"quit",data[1])))
+ sprintf(c_str,"channel %02d: connection closed by remote host",
+ channel);
+ event_math(ivac->net.connection[channel].fd,&(ivac->event),
+ READ,REMOVE);
+ network_close(&(ivac->net),channel);
+ memset(&(ivac->challenger[channel]),0,sizeof(t_challenger));
+ ivac_add_to_monitor(ivac,c_str);
+ count+=6;
+ break;
default:
- puts("[ivac] ivac_receive_info, unknown character");
+ sprintf(c_str,"ivac_receive_info, unknown character: 0x%02x\n",
+ data[count]);
+ ivac_add_to_monitor(ivac,c_str);
return ERROR;
break;
}
}
- return SUCCESS;
+ return length;
}
int ivac_event_cb(t_event *event,void *ptr) {
t_ivac *ivac;
int channel;
+ char c_str[IVAC_CONSOLE_STRING_LEN];
ivac=(t_ivac *)ptr;
+ /* incoming connection -- first contact => send info */
if(FD_ISSET(ivac->net.l_fd,&(event->rfds))) {
- /* manage incoming + send info */
- if((channel=network_manage_incoming(&(ivac->net)))!=N_ERROR) {
+ channel=network_manage_incoming(&(ivac->net));
+ if(channel==N_E_ACCEPT)
+ sprintf(c_str,"accept failed");
+ else if(channel==N_E_MAXC)
+ sprintf(c_str,"maximum connections reached");
+ else {
+ sprintf(c_str,"connection from %s port %d on channel %d",
+ ivac->net.connection[channel].ip,
+ ivac->net.connection[channel].port,channel);
+ ivac_add_to_monitor(ivac,c_str);
event_math(ivac->net.connection[channel].fd,event,READ,ADD);
ivac_send_info(channel,ivac);
}
+ ivac_display_content(ivac);
}
+ /* wait for user info */
for(channel=0;channel<MAX_CONNECTIONS;channel++) {
if(ivac->net.connection[channel].status&C_ESTABL) {
- /* receive info */
- if(FD_ISSET(ivac->net.connection[channel].fd,&(event->rfds)))
- ivac_receive_info(channel,ivac);
- /* sync network/event api */
- if(!(FD_ISSET(ivac->net.connection[channel].fd,&(event->rfds_o))))
- event_math(ivac->net.connection[channel].fd,event,READ,ADD);
+ /* remote is sending info */
+ if(FD_ISSET(ivac->net.connection[channel].fd,&(event->rfds))) {
+ if(ivac_receive_info(channel,ivac)==0) {
+ event_math(ivac->net.connection[channel].fd,event,READ,REMOVE);
+ network_close(&(ivac->net),channel);
+ sprintf(c_str,"channel %02d: broken pipe - disconnected",channel);
+ ivac_add_to_monitor(ivac,c_str);
+ }
+ ivac_display_content(ivac);
+ }
}
}
if(FD_ISSET(0,&(event->rfds)))
input_get_event(&(ivac->input),ivac_parse_command,ivac);
- /* display ivac gui */
- // ivac_display_content(ivac);
-
return SUCCESS;
}
if(!(strncmp(arg[0],"quit",4))) {
valid=1;
sprintf(c_str,"ivac shutdown ...");
+ for(i=0;i<MAX_CONNECTIONS;i++) {
+ if(ivac->net.connection[i].status&C_ESTABL) {
+ ivac_send_quit(i,ivac);
+ network_close(&(ivac->net),i);
+ }
+ }
ivac_shutdown(ivac);
}
if(!(strncmp(arg[0],"set",3))) {
sprintf(c_str,"changed username to %s",ivac->username);
}
else if((channel>=0)&&(channel<MAX_CONNECTIONS)) {
- if(ivac->net.connection[channel].status&C_IN_USE) {
+ i=network_set_connection_info(&(ivac->net),channel,arg[2],atoi(arg[3]));
+ if(i==N_E_IN_USE)
sprintf(c_str,"channel %02d: connection in use",channel);
- }
- else {
- strncpy(ivac->net.connection[channel].ip,arg[2],IP_DIGITS);
- ivac->net.connection[channel].port=atoi(arg[3]);
+ if(i==N_SUCCESS)
sprintf(c_str,"channel %02d: set connection info",channel);
- ivac->net.connection[channel].status|=C_INFO_A;
- }
} else snprintf(c_str,IVAC_CONSOLE_STRING_LEN,"unknown argument: '%s'",
arg[1]);
}
if((arg[1][0]>='0')&&(arg[1][0]<='9')) channel=atoi(arg[1]);
else channel=-1;
if((channel>=0)&&(channel<MAX_CONNECTIONS)) {
- if(!(ivac->net.connection[channel].status&C_INFO_A))
+ i=network_connect(&(ivac->net),channel);
+ if(i==N_E_IN_USE)
+ sprintf(c_str,"channel %02d: connection in use",channel);
+ else if(i==N_E_NO_INFO)
sprintf(c_str,"channel %02d: channel not configured",channel);
else {
- if(ivac->net.connection[channel].status&C_IN_USE)
- sprintf(c_str,"channel %02d: connection in use",channel);
- else {
- sprintf(c_str,"channel %02d: trying to connect to %s:%d",channel,
- ivac->net.connection[channel].ip,
- ivac->net.connection[channel].port);
- ivac->net.connection[channel].status|=C_IN_USE;
- }
+ sprintf(c_str,"channel %02d: connected to %s:%d",channel,
+ ivac->net.connection[channel].ip,
+ ivac->net.connection[channel].port);
+ event_math(ivac->net.connection[channel].fd,&(ivac->event),READ,ADD);
+ ivac_send_info(channel,ivac);
}
}
else sprintf(c_str,"invalid argument: '%s'",arg[1]);
if((arg[1][0]>='0')&&(arg[1][0]<='9')) channel=atoi(arg[1]);
else channel=-1;
if((channel>=0)&&(channel<MAX_CONNECTIONS)) {
- if(!(ivac->net.connection[channel].status&C_ESTABL))
- sprintf(c_str,"channel %02d: no active connection",channel);
- else {
- ivac->net.connection[channel].status|=C_HANGUP;
+ if(ivac->net.connection[channel].status&C_ESTABL) {
+ ivac_send_quit(channel,ivac);
+ event_math(ivac->net.connection[channel].fd,&(ivac->event),
+ READ,REMOVE);
+ network_close(&(ivac->net),channel);
sprintf(c_str,"channel %02d: connection closed",channel);
+ memset(&(ivac->challenger[channel]),0,sizeof(t_challenger));
}
+ else
+ sprintf(c_str,"channel %02d: no active connection",channel);
}
else sprintf(c_str,"invalid argument: '%s'",arg[1]);
}
if((arg[1][0]>='0')&&(arg[1][0]<='9')) channel=atoi(arg[1]);
else channel=-1;
if((channel>=0)&&(channel<MAX_CONNECTIONS)) {
- ivac->net.sendmask|=(1<<channel);
+ network_select(&(ivac->net),channel);
sprintf(c_str,"selected channel %d",channel);
}
else if(arg[1][0]='*') {
- ivac->net.sendmask=0xff;
+ network_select(&(ivac->net),MAX_CONNECTIONS);
strcpy(c_str,"selected all channels");
}
else sprintf(c_str,"invalid argument: '%s'",arg[1]);
if((arg[1][0]>='0')&&(arg[1][0]<='9')) channel=atoi(arg[1]);
else channel=-1;
if((channel>=0)&&(channel<MAX_CONNECTIONS)) {
- ivac->net.sendmask&=(~(1<<channel));
+ network_deselect(&(ivac->net),channel);
sprintf(c_str,"deselected channel %d",channel);
}
else if(arg[1][0]='*') {
- ivac->net.sendmask=0;
+ network_deselect(&(ivac->net),MAX_CONNECTIONS);
strcpy(c_str,"deselected all channels");
}
else sprintf(c_str,"invalid argument: '%s'",arg[1]);