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| author | Eric Andersen <andersen@codepoet.org> | 2001-05-29 17:43:46 +0000 |
|---|---|---|
| committer | Eric Andersen <andersen@codepoet.org> | 2001-05-29 17:43:46 +0000 |
| commit | caa78fb3fdbd4acd4016e10241dce815483e7d13 (patch) | |
| tree | afa0fc83cbd86cf1375e80b7c04c99493968d6e4 /libc/termios/termios.c | |
| parent | 12eb7cae21a73ae13e30610e1d4286111e7a5835 (diff) | |
| download | uClibc-alpine-caa78fb3fdbd4acd4016e10241dce815483e7d13.tar.bz2 uClibc-alpine-caa78fb3fdbd4acd4016e10241dce815483e7d13.tar.xz | |
Sometimes (often) the kernel will return things other then -1.
Deal with it.
-Erik
Diffstat (limited to 'libc/termios/termios.c')
| -rw-r--r-- | libc/termios/termios.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/libc/termios/termios.c b/libc/termios/termios.c index d6cd124d1..e0c3743d0 100644 --- a/libc/termios/termios.c +++ b/libc/termios/termios.c @@ -35,14 +35,13 @@ int isatty(int fd) { - struct __kernel_termios k_term; + struct __kernel_termios k_term; - /* - * When ioctl returns -1 we want to return 0 and - * when ioctl returns 0 we want to return 1. - * Incrementing is cheaper (size & speed) than a test. - */ - return ioctl(fd, TCGETS, &k_term) + 1; + /* + * When ioctl returns -1 we want to return 0 and + * when ioctl returns 0 we want to return 1. + */ + return (ioctl(fd, TCGETS, &k_term)==0)? 1 : 0; } #endif |