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libio: Use stdin consistently for input functions [BZ #24153]

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The internal _IO_stdin_ variable is not updated when the application
assigns to stdin, which is a GNU extension.
This commit is contained in:
Florian Weimer
2019-02-03 09:37:30 +01:00
parent c70824b9a4
commit ee9941f94e
11 changed files with 157 additions and 29 deletions
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6
libio/getwchar.c
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@ -33,8 +33,8 @@ wint_t
getwchar (void)
{
wint_t result;
_IO_acquire_lock (_IO_stdin);
result = _IO_getwc_unlocked (_IO_stdin);
_IO_release_lock (_IO_stdin);
_IO_acquire_lock (stdin);
result = _IO_getwc_unlocked (stdin);
_IO_release_lock (stdin);
return result;
}