socket_cat.c

Linux嵌入式设计配套光盘,学习嵌入式设计可参考

#include <unistd.h>             /* read, write */
#include <sys/un.h>             /* sockaddr_un */
#include <sys/types.h>          /* socket, connect */
#include <sys/socket.h>         /* socket, connect */
#include <string.h>             /* strcpy */

int main(int argc,char *argv[])
{
  int fd,i;
  char buf[128];
  struct sockaddr_un address;
  address.sun_family=AF_UNIX;
  if(argc<2){
    printf("Usage: socket_cat <unix socket path>\n");
    return;
  }
  strcpy(address.sun_path,argv[1]);

  fd=socket(AF_UNIX,SOCK_STREAM,0);
  if(connect(fd,(struct sockaddr *)&address,sizeof(address)) == -1){
      perror("Connect");
    exit(1);
  }
  for(;;){
      i=read(fd,buf,128);
    write(STDOUT_FILENO,buf,i);
  };
}