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5f10701fdc
GLIBC explicitly allows one to assign a new FILE pointer to stdout and other standard streams. printf and wprintf were honouring assignment to stdout and using the new value, but puts, putchar, and wide char variants did not. The stdout part is fixed here. The stdin part will be fixed in a followup.
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/* Copyright (C) 1993-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>.
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As a special exception, if you link the code in this file with
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files compiled with a GNU compiler to produce an executable,
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that does not cause the resulting executable to be covered by
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the GNU Lesser General Public License. This exception does not
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however invalidate any other reasons why the executable file
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might be covered by the GNU Lesser General Public License.
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This exception applies to code released by its copyright holders
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in files containing the exception. */
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#include "libioP.h"
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#include <string.h>
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#include <limits.h>
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int
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_IO_puts (const char *str)
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{
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int result = EOF;
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size_t len = strlen (str);
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_IO_acquire_lock (stdout);
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if ((_IO_vtable_offset (stdout) != 0
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|| _IO_fwide (stdout, -1) == -1)
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&& _IO_sputn (stdout, str, len) == len
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&& _IO_putc_unlocked ('\n', stdout) != EOF)
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result = MIN (INT_MAX, len + 1);
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_IO_release_lock (stdout);
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return result;
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}
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weak_alias (_IO_puts, puts)
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libc_hidden_def (_IO_puts)
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