X-Git-Url: https://hackdaworld.org/gitweb/?p=my-code%2Fivac.git;a=blobdiff_plain;f=src%2Fivac.c;h=47d1892ae77d0ca3baededd9f40310d4a5a7a9fc;hp=f4995a791a4f5304090456064ce64cf4cd5e819f;hb=3bffc32233a1608ba3338f39bc5193665f3095cc;hpb=f7d9ad56ad9c10284c067cb2db36a7c72b33c5b3

diff --git a/src/ivac.c b/src/ivac.c
index f4995a7..47d1892 100644
--- a/src/ivac.c
+++ b/src/ivac.c
@@ -23,72 +23,275 @@
 
 #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("");
+
+  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);
+ 
+  /* 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;
+        default:
+          usage();
+          return ERROR;
+      }
+    }
+    else usage();
+  }
 
-  /* set username (futur: read from config or entered later) */
-  strcpy(ivac.username,"hackbard");
+  /* 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;
-
-  /* set listen port (futur: read from config or entered later) */
-  network_set_listen_port(&(ivac.net),IVAC_LISTEN_PORT);
-
   /* 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 kill that process",ivac.net.l_port);
+    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 + stdin to (read) event system */
+  /* 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 */
+  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);
 
-  network_shutdown(&(ivac.net));
+  return SUCCESS;
+}
 
-  input_shutdown(&(ivac.input));
+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))) {
-    /* manage incoming + send info */
     channel=network_manage_incoming(&(ivac->net));
-    event_math(ivac->net.connection[channel].fd,event,READ,ADD);
-    send_info(channel,&(ivac->net),ivac->username);
+    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);
   }
 
-  /* receive info */
-  for(channel=0;channel<MAX_CONNECTIONS;channel++)
-    if(ivac->net.connection[channel].status&C_ESTABL)
-      if(FD_ISSET(ivac->net.connection[channel].fd,&(event->rfds)))
-        receive_info(channel,&(ivac->net));
+  /* 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_content(ivac);
+      }
+    }
+  } 
 
   /* user interaction */
   if(FD_ISSET(0,&(event->rfds)))
-    input_get_char(&(ivac->input),ivac_display,ivac);
-    
+    input_get_event(&(ivac->input),ivac_parse_command,ivac);
+
   return SUCCESS;
 }
 
@@ -99,13 +302,258 @@ int ivac_regular_cb(t_event *event,void *ptr) {
   return SUCCESS;
 }
 
-int ivac_display(t_input *input,void *ptr) {
+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);
 
-  if(input->content[input->c_count-1]=='q') ivac->event.status=DISABLED;
+    /* 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;
+    }
 
-   return SUCCESS;
+    /* 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_content(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_display *display) {
+
+  puts("#########################################################");
+  puts("##### ivac - -  Copyright (C) 2004 Frank Zirkelbach #####");
+  puts("#########################################################");
+
+  return SUCCESS;
+}
+
+int ivac_display_box(t_display *display) {
+ 
+  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>");
+
+  return SUCCESS;
+}
+
+int ivac_display_console(t_display *display) {
+
+  return SUCCESS;
+}
+
+int ivac_display_console_content(t_ivac *ivac) {
+
+  int i;
+
+  for(i=0;i<IVAC_CONSOLE_LEN;i++)
+    printf("[ivac] console line %d: %s\n",i,ivac->console[i]);
+
+  return SUCCESS;
+}
+
+int ivac_display_prompt(t_display *display) {
+
+  return SUCCESS;
+}
+
+int ivac_display_prompt_content(t_ivac *ivac) {
+
+  printf("%c",ivac->input.content[ivac->input.c_count-1]);
+  fflush(NULL);
+
+  return SUCCESS;
+}
+
+int ivac_display(t_display *display) {
+
+  int x,y;
+
+  /* display head */
+  ivac_display_head(display);
+
+  /* display box */
+  ivac_display_box(display);
+
+  /* display console */
+  ivac_display_console(display);
+
+  /* display command prompt */
+  ivac_display_prompt(display);
+
+  return SUCCESS;
+}
+
+int ivac_display_content(t_ivac *ivac) {
+
+  /* display box content */
+  ivac_display_box_content(ivac);
+
+  /* display console content */
+  ivac_display_console_content(ivac);
+
+  /* display prompt content */
+  ivac_display_prompt_content(ivac);
+
+  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 SUCCESS;
 }