xref: /aosp_15_r20/external/musl/src/misc/login_tty.c (revision c9945492fdd68bbe62686c5b452b4dc1be3f8453)
1*c9945492SAndroid Build Coastguard Worker #include <utmp.h>
2*c9945492SAndroid Build Coastguard Worker #include <sys/ioctl.h>
3*c9945492SAndroid Build Coastguard Worker #include <unistd.h>
4*c9945492SAndroid Build Coastguard Worker 
login_tty(int fd)5*c9945492SAndroid Build Coastguard Worker int login_tty(int fd)
6*c9945492SAndroid Build Coastguard Worker {
7*c9945492SAndroid Build Coastguard Worker 	setsid();
8*c9945492SAndroid Build Coastguard Worker 	if (ioctl(fd, TIOCSCTTY, (char *)0)) return -1;
9*c9945492SAndroid Build Coastguard Worker 	dup2(fd, 0);
10*c9945492SAndroid Build Coastguard Worker 	dup2(fd, 1);
11*c9945492SAndroid Build Coastguard Worker 	dup2(fd, 2);
12*c9945492SAndroid Build Coastguard Worker 	if (fd>2) close(fd);
13*c9945492SAndroid Build Coastguard Worker 	return 0;
14*c9945492SAndroid Build Coastguard Worker }
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