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#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include <sys/ioctl.h>
/*
A) $0 ./ngetty-helper /dev/ttyX [login]
B) $0 "-H" /dev/ttyX
C) $0 "-O" /dev/ttyX
*/
int main(int argc , char **argv, char **env) {
int k;
char *x;
if (argc<3) _exit(100);
ioctl(0, TIOCNOTTY, 0);
for (k=0; k<6; k++) close(k);
if (0 != open(argv[2], O_RDWR | O_NOCTTY)) _exit(111);
x = argv[1];
if (x[0] != '-') {
argv++;
execve(*argv, argv, env);
_exit(127);
}
++x;
switch (*x) {
case 'O':
if (fork()) _exit(0);
case 'H':
setsid();
ioctl(0, TIOCSCTTY, 0);
sleep(15);
vhangup();
}
_exit(0);
}
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