#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("-u <port> \t specify udp data port");
+ puts("-d <device> \t specify audio device");
+ puts("-i <iface> \t specify network interface");
+ puts("");
+
+ return SUCCESS;
+}
+
int main(int argc,char **argv) {
+ /* TESTING BY NOW */
+
+ t_ivac ivac;
+ int i;
+
+ /* default values */
+ strcpy(ivac.username,"ivac");
+ ivac.net.l_port=IVAC_LISTEN_PORT;
+ ivac.net.l_udp_port=IVAC_UDP_PORT;
+ strcpy(ivac.audio.dsp_dev,SOUND_DEVICE);
+ strcpy(ivac.net.nic,"eth0");
+
+ /* parse argv and change default values */
+ for(i=1;i<argc;i++) {
+ if(argv[i][0]=='-') {
+ switch(argv[i][1]) {
+ case 'h':
+ usage();
+ return SUCCESS;
+ case 'n':
+ strncpy(ivac.username,argv[++i],CHAR_USERNAME);
+ break;
+ case 'p':
+ ivac.net.l_port=atoi(argv[++i]);
+ break;
+ case 'u':
+ ivac.net.l_udp_port=atoi(argv[++i]);
+ break;
+ case 'd':
+ strncpy(ivac.audio.dsp_dev,argv[++i],MAX_CHAR_DEVICE);
+ break;
+ case 'i':
+ strncpy(ivac.net.nic,argv[++i],MAX_NIC_DEVICE);
+ default:
+ usage();
+ return ERROR;
+ }
+ }
+ else usage();
+ }
+
+ /* clear challenger struct */
+ for(i=0;i<MAX_CONNECTIONS;i++)
+ memset(&(ivac.challenger[i]),0,sizeof(t_challenger));
+ /* zero console buffer */
+ for(i=0;i<IVAC_CONSOLE_LEN;i++)
+ memset(ivac.console[i],0,IVAC_CONSOLE_STRING_LEN);
+
+ /* set capabilities (futur: set by check routines) */
+ ivac.g_cap=NETWORK;
+ ivac.av_cap=AUDIO|VIDEO|DUPLEX;
+
+ /* set event timeout */
+ ivac.event.timeout.tv_sec=IVAC_S_SEC;
+ ivac.event.timeout.tv_usec=IVAC_S_USEC;
+ /* event init */
+ event_init(&(ivac.event));
+
+ /* input init */
+ ivac.input.mode=CONTENT_BUFFER;
+ input_init(&(ivac.input));
+
+ /* network init */
+ if(network_init(&(ivac.net))==N_ERROR) {
+ printf("[ivac] use 'fuser -n tcp %d' to determine the process to kill!\n",
+ ivac.net.l_port);
+ ivac_shutdown(&ivac);
+ return ERROR;
+ }
+ network_udp_listen_init(&(ivac.net));
+
+ /* add listening port(s) + stdin to (read) event system */
+ event_math(ivac.net.l_fd,&(ivac.event),READ,ADD);
+ event_math(ivac.net.l_udp_fd,&(ivac.event),READ,ADD);
+ event_math(0,&(ivac.event),READ,ADD);
+
+ /* display init */
+ display_init(&(ivac.display));
+
+ /* use hardcoded audio settings by now */
+ ivac.audio.fmt=BIT_8;
+ ivac.audio.channels=MONO;
+ ivac.audio.speed=8000;
+ /* audio init */
+ audio_init(&(ivac.audio));
+ audio_setup(&(ivac.audio));
+
+ /* display */
+#ifdef XXX_GUI
+ /* "constant" graphics */
+ ivac_display_head(&ivac);
+ ivac_display_box(&ivac);
+ ivac_display_console(&ivac);
+#endif
+ ivac_display(&ivac);
+
+ /* start event system - callbacks used: ivac_event_cb + ivac_regular_cb */
+ event_start(&(ivac.event),(void *)&ivac,ivac_event_cb,ivac_regular_cb);
+
+ return SUCCESS;
+}
+
+int ivac_shutdown(t_ivac *ivac) {
+
+ network_shutdown(&(ivac->net));
+ network_udp_shutdown(&(ivac->net));
+ input_shutdown(&(ivac->input));
+ event_stop(&(ivac->event));
+ audio_shutdown(&(ivac->audio));
+ display_shutdown(&(ivac->display));
+
+ return SUCCESS;
+}
+
+int ivac_send_info(int channel,t_ivac *ivac) {
+
+ char data[SEND_N_MAX];
+ int size;
+
+ size=strlen(ivac->username);
+
+ data[0]=IVAC_SEND_NAME;
+ data[1]=size;
+ strncpy(data+2,ivac->username,size);
+ size+=2;
+
+ data[size]=IVAC_SEND_G_CAP;
+ data[size+1]=1;
+ data[size+2]=ivac->g_cap;
+ size+=3;
+
+ data[size]=IVAC_SEND_AV_CAP;
+ data[size+1]=2;
+ data[size+2]=(ivac->av_cap)>>8;
+ data[size+3]=(ivac->av_cap)&0xff;
+ size+=4;
+
+ if(network_send(ivac->net.connection[channel].fd,data,size)==N_ERROR) {
+ puts("[ivac] ivac_send_info failed");
+ return ERROR;
+ }
+
+ 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;
+
+ if((length=network_receive(ivac->net.connection[channel].fd,
+ data,SEND_N_MAX))==N_ERROR) {
+ puts("[ivac] ivac_receive_info failed");
+ return ERROR;
+ }
+
+ while(length-count) {
+ switch(data[count]) {
+ case IVAC_SEND_NAME:
+ strncpy(ivac->challenger[channel].name,data+count+2,data[count+1]);
+ ivac->challenger[channel].name[data[count+1]]='\0';
+ count+=(data[count+1]+2);
+ break;
+ case IVAC_SEND_G_CAP:
+ ivac->challenger[channel].g_cap=data[count+2];
+ count+=3;
+ break;
+ case IVAC_SEND_AV_CAP:
+ ivac->challenger[channel].av_cap=data[count+2]<<8;
+ 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:
+ sprintf(c_str,"ivac_receive_info, unknown character: 0x%02x\n",
+ data[count]);
+ ivac_add_to_monitor(ivac,c_str);
+ return ERROR;
+ break;
+ }
+ }
+
+ 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))) {
+ 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(ivac);
+ }
+
+ /* wait for user info */
+ for(channel=0;channel<MAX_CONNECTIONS;channel++) {
+ if(ivac->net.connection[channel].status&C_ESTABL) {
+ /* 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(ivac);
+ }
+ }
+ }
+
+ /* user interaction */
+ if(FD_ISSET(0,&(event->rfds)))
+ input_get_event(&(ivac->input),ivac_parse_command,ivac);
+
+ return SUCCESS;
+}
+
+int ivac_regular_cb(t_event *event,void *ptr) {
+
+ /* usual jobs like audio & video transmit ... */
+
+ return SUCCESS;
+}
+
+int ivac_parse_command(t_input *input,void *ptr) {
+
+ t_ivac *ivac;
+ int i,j,k;
+ int len;
+ int channel;
+ char *data,valid;
+ char c_str[IVAC_CONSOLE_STRING_LEN];
+ char arg[IVAC_ARG_COUNT][IVAC_ARG_LEN];
+
+ ivac=(t_ivac *)ptr;
+ data=input->content;
+ valid=0;
+
+ /* refresh prompt content only */
+ ivac_display_prompt_content(ivac);
+
+ /* parse command routines */
+ if(data[input->c_count-1]=='\n') {
+
+ /* delete console string + args */
+ memset(c_str,0,IVAC_CONSOLE_STRING_LEN);
+ for(j=0;j<IVAC_ARG_COUNT;j++) memset(arg[j],0,IVAC_ARG_LEN);
+
+ /* get args */
+ len=0;
+ while(data[len]!='\n') len++;
+ i=0; j=0;
+ while((i<len) && (j<IVAC_ARG_COUNT)) {
+ k=0;
+ while((data[i+k]!=' ')&&(data[i+k]!='\n')) {
+ arg[j][k]=data[i+k];
+ k++;
+ }
+ arg[j][k]='\0';
+ j++;
+ /* skip all ' ' */
+ while(data[i+k]==' ') k++;
+ i+=k;
+ }
+
+ /* parse command aka arg[0] */
+ 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))) {
+ valid=1;
+ if((arg[1][0]>='0')&&(arg[1][0]<='9')) channel=atoi(arg[1]);
+ else channel=-1;
+ if(!(strncmp(arg[1],"name",4))) {
+ strncpy(ivac->username,arg[2],CHAR_USERNAME);
+ sprintf(c_str,"changed username to %s",ivac->username);
+ }
+ else if((channel>=0)&&(channel<MAX_CONNECTIONS)) {
+ 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);
+ if(i==N_SUCCESS)
+ sprintf(c_str,"channel %02d: set connection info",channel);
+ } else snprintf(c_str,IVAC_CONSOLE_STRING_LEN,"unknown argument: '%s'",
+ arg[1]);
+ }
+ if(!(strncmp(arg[0],"connect",7))) {
+ valid=1;
+ if((arg[1][0]>='0')&&(arg[1][0]<='9')) channel=atoi(arg[1]);
+ else channel=-1;
+ if((channel>=0)&&(channel<MAX_CONNECTIONS)) {
+ 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 {
+ 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(!(strncmp(arg[0],"close",5))) {
+ valid=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) {
+ 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(!(strncmp(arg[0],"select",6))) {
+ valid=1;
+ if((arg[1][0]>='0')&&(arg[1][0]<='9')) channel=atoi(arg[1]);
+ else channel=-1;
+ if((channel>=0)&&(channel<MAX_CONNECTIONS)) {
+ network_select(&(ivac->net),channel);
+ sprintf(c_str,"selected channel %d",channel);
+ }
+ else if(arg[1][0]='*') {
+ network_select(&(ivac->net),MAX_CONNECTIONS);
+ strcpy(c_str,"selected all channels");
+ }
+ else sprintf(c_str,"invalid argument: '%s'",arg[1]);
+ }
+ if(!(strncmp(arg[0],"deselect",8))) {
+ valid=1;
+ if((arg[1][0]>='0')&&(arg[1][0]<='9')) channel=atoi(arg[1]);
+ else channel=-1;
+ if((channel>=0)&&(channel<MAX_CONNECTIONS)) {
+ network_deselect(&(ivac->net),channel);
+ sprintf(c_str,"deselected channel %d",channel);
+ }
+ else if(arg[1][0]='*') {
+ network_deselect(&(ivac->net),MAX_CONNECTIONS);
+ strcpy(c_str,"deselected all channels");
+ }
+ else sprintf(c_str,"invalid argument: '%s'",arg[1]);
+ }
+
+ if(!valid)
+ snprintf(c_str,IVAC_CONSOLE_STRING_LEN,"unknown command: '%s'",arg[0]);
+
+ /* call network functions */
+ network_manage_connection(&(ivac->net));
+
+ /* add console string to console buffer */
+ ivac_add_to_monitor(ivac,c_str);
+
+ /* refresh whole display content */
+ ivac_display(ivac);
+
+ /* delete content buffer + reset counter */
+ memset(input->content,0,input->c_count-1);
+ input->c_count=0;
+
+ }
+
+ return SUCCESS;
+}
+
+int ivac_display_head(t_ivac *ivac) {
+
+#ifndef XXX_GUI
+ display_term_line(&(ivac->display),'#');
+ puts("##### ivac - - Copyright (C) 2004 Frank Zirkelbach #####");
+ puts("#########################################################");
+#endif
+
+ return SUCCESS;
+}
+
+int ivac_display_box(t_ivac *ivac) {
+
+#ifndef XXX_GUI
+ puts("---------------------------------------------------------------------");
+ printf("username: %s, capabilities: %02x|%04x\n",ivac->username,ivac->g_cap,
+ ivac->av_cap);
+ puts("---------------------------------------------------------------------");
+ puts("connections:");
+#endif
+
+ return SUCCESS;
+}
+
+int ivac_display_box_content(t_ivac *ivac) {
+
+ int channel;
+
+ /* prepare challenger names */
+ for(channel=0;channel<MAX_CONNECTIONS;channel++)
+ if(ivac->challenger[channel].name[0]==0)
+ strcpy(ivac->challenger[channel].name,"<empty>");
+
+#ifndef XXX_GUI
+ for(channel=0;channel<MAX_CONNECTIONS;channel++) {
+ if(ivac->net.connection[channel].status&C_INFO_A)
+ printf("channel %02d: %s:%d, status: %02x, name: %s\n",channel,
+ ivac->net.connection[channel].ip,
+ ivac->net.connection[channel].port,
+ ivac->net.connection[channel].status,
+ ivac->challenger[channel].name);
+ }
+#endif
+
+ return SUCCESS;
+}
+
+int ivac_display_console(t_ivac *ivac) {
+
+#ifndef XXX_GUI
+ puts("---------------------------------------------------------------------");
+ puts("console messages:");
+#endif
+
+ return SUCCESS;
+}
+
+int ivac_display_console_content(t_ivac *ivac) {
+
+ int i;
+
+#ifndef XXX_GUI
+ for(i=0;i<IVAC_CONSOLE_LEN;i++)
+ printf("| %s\n",ivac->console[i]);
+#endif
+
+ return SUCCESS;
+}
+
+int ivac_display_prompt(t_ivac *ivac) {
+
+#ifndef XXX_GUI
+ puts("---------------------------------------------------------------------");
+ printf("prompt: ");
+#endif
+
+ return SUCCESS;
+}
+
+int ivac_display_prompt_content(t_ivac *ivac) {
+
+#ifndef XXX_GUI
+ printf("%c",ivac->input.content[ivac->input.c_count-1]);
+ fflush(NULL);
+#endif
+
+ return SUCCESS;
+}
+
+int ivac_display(t_ivac *ivac) {
+
+ int x,y;
+
+#ifndef XXX_GUI
+ /* display head */
+ ivac_display_head(ivac);
+
+ /* display box */
+ ivac_display_box(ivac);
+#endif
+ ivac_display_box_content(ivac);
+
+#ifndef XXX_GUI
+ /* display console */
+ ivac_display_console(ivac);
+#endif
+ ivac_display_console_content(ivac);
+
+#ifndef XXX_GUI
+ /* display command prompt */
+ ivac_display_prompt(ivac);
+#endif
+ fflush(NULL);
+
+ return SUCCESS;
+}
+
+int ivac_add_to_monitor(t_ivac *ivac,char *msg) {
+
+ int i;
+
+ for(i=0;i<IVAC_CONSOLE_LEN-1;i++)
+ memcpy(ivac->console[i],ivac->console[i+1],IVAC_CONSOLE_STRING_LEN);
+ memcpy(ivac->console[IVAC_CONSOLE_LEN-1],msg,IVAC_CONSOLE_STRING_LEN);
-
- return 1;
+ return SUCCESS;
}
projects / my-code / ivac.git / blobdiff