sockroot

Login to a secured (chrooted) shell via a UNIX-socket
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sockclient.c (699B)

      1 #include <errno.h>
      2 #include <signal.h>
      3 #include <stdio.h>
      4 #include <string.h>
      5 #include <sys/socket.h>
      6 #include <sys/un.h>
      7 #include <unistd.h>
      8 
      9 #define SERVER_SOCK_FILE "sockroot.sock"
     10 
     11 
     12 int main(void) {
     13 	int client;
     14 
     15 	if ((client = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
     16 		fprintf(stderr, "error: cannot open socket: %s\n", strerror(errno));
     17 		return 1;
     18 	}
     19 
     20 	// bind socket to address
     21 	struct sockaddr_un addr = { 0 };
     22 	addr.sun_family         = AF_UNIX;
     23 	strncpy(addr.sun_path, SERVER_SOCK_FILE, sizeof(addr.sun_path));
     24 	if (connect(client, (struct sockaddr*) &addr, sizeof(addr)) == -1) {
     25 		fprintf(stderr, "error: cannot connect to socket: %s\n", strerror(errno));
     26 		return 1;
     27 	}
     28 
     29 
     30 	return 0;
     31 }