chiark
/
gitweb
/
~ianmdlvl
/
elogind.git
/ blob
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
history
|
raw
|
HEAD
move code to its own files
[elogind.git]
/
klibc
/
klibc
/
isatty.c
1
/*
2
* isatty.c
3
*/
4
5
#include <unistd.h>
6
#include <termios.h>
7
#include <errno.h>
8
9
int isatty(int fd)
10
{
11
int old_errno = errno;
12
int istty;
13
pid_t dummy;
14
15
/* All ttys support TIOCGPGRP */
16
istty = !ioctl(fd, TIOCGPGRP, &dummy);
17
errno = old_errno;
18
19
return istty;
20
}
21