compiled-tools/mksock.c

   1
   2 #include <sys/socket.h>
   3 #include <sys/types.h>
   4 #include <sys/un.h>
   5 #include <errno.h>
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <string.h>
   9
  10 void invmal()
  11 {
  12         fprintf(stderr, "Usage:  mksock [-s | -d] PATH\n");
  13         exit(1);
  14 }
  15
  16 int main(int argc, char ** argv)
  17 {
  18         struct sockaddr_un sun;
  19         int sockfd, r;
  20         int type = SOCK_DGRAM;
  21         char *sockname;
  22
  23         if(argc == 1) invmal();
  24         sockname = argv[1];
  25         if(argv[1][0]=='-') {
  26                 if(strcmp(argv[1],"-s")==0) type = SOCK_STREAM;
  27                 else if(strcmp(argv[1],"-d")==0) type = SOCK_DGRAM;
  28                 else invmal();
  29                 if(argc == 2) invmal();
  30                 sockname = argv[2];
  31         }
  32
  33         memset(&sun, 0, sizeof(sun));
  34         sun.sun_family = AF_UNIX;
  35         snprintf(sun.sun_path, sizeof(sun.sun_path), "%s", sockname);
  36
  37         sockfd = socket(PF_UNIX, type, 0);
  38
  39         r = bind(sockfd, (struct sockaddr*)&sun, sizeof(sun));
  40         if(r != 0) {
  41                 fprintf(stderr, "mksock: error making %s: %s\n", sun.sun_path, strerror(errno));
  42                 exit(r);
  43         }
  44
  45         return 0;
  46 }