2.3.2/src/unixterm.c

   1 /* Copyright 2005 Renzo Davoli VDE-2
   2  * Licensed under the GPLv2
   3  *
   4  * Minimal terminal emulator on a UNIX stream socket
   5  */
   6
   7 #include <stdio.h>
   8 #include <fcntl.h>
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <sys/socket.h>
  12 #include <sys/un.h>
  13
  14 #include <config.h>
  15 #include <vde.h>
  16 #include <vdecommon.h>
  17
  18 #define BUFSIZE 1024
  19 char buf[BUFSIZE];
  20
  21 int main(int argc,char *argv[])
  22 {
  23         struct sockaddr_un sun;
  24         int fd;
  25         int rv;
  26         static struct pollfd pfd[]={
  27                 {STDIN_FILENO,POLLIN | POLLHUP,0},
  28                 {STDIN_FILENO,POLLIN | POLLHUP,0}};
  29         static int fileout[]={STDOUT_FILENO,STDOUT_FILENO};
  30         sun.sun_family=PF_UNIX;
  31         snprintf(sun.sun_path,sizeof(sun.sun_path),"%s",argv[1]);
  32         if((fd=socket(PF_UNIX,SOCK_STREAM,0))<0) {
  33                 perror("Socket opening error");
  34                 exit(-1);
  35         }
  36         if ((rv=connect(fd,(struct sockaddr *)(&sun),sizeof(sun))) < 0) {
  37                 perror("Socket connecting error");
  38                 exit(-1);
  39         }
  40         pfd[1].fd=fileout[0]=fd;
  41         while(1) {
  42                 int m,i,n=poll(pfd,2,-1);
  43                 for(i=0;n>0;i++) {
  44                         if(pfd[i].revents & POLLHUP)
  45                                 exit(0);
  46                         if(pfd[i].revents & POLLIN) {
  47                                 n--;
  48                                 if((m=read(pfd[i].fd,buf,BUFSIZE)) == 0)
  49                                         exit(0);
  50                                 write(fileout[i],buf,m);
  51                         }
  52                 }
  53         }
  54 }