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tty: use defines rather than constants

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No obj-code changes.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
This commit is contained in:
Bernhard Reutner-Fischer 2009-10-29 21:37:48 +01:00
parent 85ca327529
commit 95a036e125
1 changed files with 5 additions and 5 deletions
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10
coreutils/tty.c
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@ -7,8 +7,8 @@
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details. * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/ */
/* BB_AUDIT SUSv3 compliant */ /* BB_AUDIT SUSv4 compliant */
/* http://www.opengroup.org/onlinepubs/007904975/utilities/tty.html */ /* http://www.opengroup.org/onlinepubs/9699919799/utilities/tty.html */
#include "libbb.h" #include "libbb.h"
@ -28,14 +28,14 @@ int tty_main(int argc, char **argv IF_NOT_INCLUDE_SUSv2(UNUSED_PARAM))
/* gnu tty outputs a warning that it is ignoring all args. */ /* gnu tty outputs a warning that it is ignoring all args. */
bb_warn_ignoring_args(argc); bb_warn_ignoring_args(argc);
retval = 0; retval = EXIT_SUCCESS;
s = xmalloc_ttyname(0); s = xmalloc_ttyname(STDIN_FILENO);
if (s == NULL) { if (s == NULL) {
/* According to SUSv3, ttyname can fail with EBADF or ENOTTY. /* According to SUSv3, ttyname can fail with EBADF or ENOTTY.
* We know the file descriptor is good, so failure means not a tty. */ * We know the file descriptor is good, so failure means not a tty. */
s = "not a tty"; s = "not a tty";
retval = 1; retval = EXIT_FAILURE;
} }
IF_INCLUDE_SUSv2(if (!silent) puts(s);) IF_INCLUDE_SUSv2(if (!silent) puts(s);)
IF_NOT_INCLUDE_SUSv2(puts(s);) IF_NOT_INCLUDE_SUSv2(puts(s);)