Commit | Line | Data |
---|---|---|
1 | #if defined(LIBC_SCCS) && !defined(lint) | |
2 | static char sccsid[] = "@(#)isatty.c 5.2 (Berkeley) %G%"; | |
3 | #endif LIBC_SCCS and not lint | |
4 | ||
5 | /* | |
6 | * Returns 1 iff file is a tty | |
7 | */ | |
8 | ||
9 | #include <sgtty.h> | |
10 | ||
11 | isatty(f) | |
12 | { | |
13 | struct sgttyb ttyb; | |
14 | ||
15 | if (ioctl(f, TIOCGETP, &ttyb) < 0) | |
16 | return(0); | |
17 | return(1); | |
18 | } |