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getty: more correct check for O_RDWR

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2011-01-22 17:29:53 +01:00
parent 2b57b6cd43
commit 006416e8fe
1 changed files with 1 additions and 1 deletions
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loginutils/getty.c
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@ -268,7 +268,7 @@ static void open_tty(const char *tty)
* Standard input should already be connected to an open port. Make * Standard input should already be connected to an open port. Make
* sure it is open for read/write. * sure it is open for read/write.
*/ */
if ((fcntl(0, F_GETFL) & O_RDWR) != O_RDWR) if ((fcntl(0, F_GETFL) & (O_RDWR|O_RDONLY|O_WRONLY)) != O_RDWR)
bb_error_msg_and_die("stdin is not open for read/write"); bb_error_msg_and_die("stdin is not open for read/write");
} }
} }