fiss-minit

A standalone service supervisor based on minit
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opendevconsole.c (345B)

      1 #include "write12.h"
      2 
      3 #include <fcntl.h>
      4 #include <stdlib.h>
      5 #include <unistd.h>
      6 
      7 void opendevconsole() {
      8 	int fd;
      9 	if ((fd = open("/dev/console", O_RDWR | O_NOCTTY)) >= 0) {
     10 		if (dup2(fd, 0) != 0 ||
     11 		    dup2(fd, 1) != 1 ||
     12 		    dup2(fd, 2) != 2) {
     13 			__write2("dup2 failed unexpectedly.\n");
     14 			exit(111);
     15 		}
     16 		if (fd > 2) close(fd);
     17 	}
     18 }