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f72283d8b1
(upstream commit from gnulib). Fixes #1050. Signed-off-by: Alexey Neyman <stilor@att.net>
145 lines
5.6 KiB
Diff
145 lines
5.6 KiB
Diff
commit 4af4a4a71827c0bc5e0ec67af23edef4f15cee8e
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Author: Paul Eggert <eggert@cs.ucla.edu>
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Date: Mon Mar 5 10:56:29 2018 -0800
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fflush: adjust to glibc 2.28 libio.h removal
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Problem reported by Daniel P. Berrangé in:
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https://lists.gnu.org/r/bug-gnulib/2018-03/msg00000.html
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* lib/fbufmode.c (fbufmode):
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* lib/fflush.c (clear_ungetc_buffer_preserving_position)
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(disable_seek_optimization, rpl_fflush):
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* lib/fpending.c (__fpending):
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* lib/fpurge.c (fpurge):
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* lib/freadable.c (freadable):
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* lib/freadahead.c (freadahead):
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* lib/freading.c (freading):
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* lib/freadptr.c (freadptr):
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* lib/freadseek.c (freadptrinc):
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* lib/fseeko.c (fseeko):
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* lib/fseterr.c (fseterr):
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* lib/fwritable.c (fwritable):
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* lib/fwriting.c (fwriting):
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Check _IO_EOF_SEEN instead of _IO_ftrylockfile.
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* lib/stdio-impl.h (_IO_IN_BACKUP) [_IO_EOF_SEEN]:
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Define if not already defined.
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---
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lib/fflush.c | 6 +++---
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lib/fpending.c | 2 +-
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lib/fpurge.c | 2 +-
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lib/freadahead.c | 2 +-
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lib/freading.c | 2 +-
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lib/fseeko.c | 4 ++--
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lib/stdio-impl.h | 6 ++++++
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7 files changed, 15 insertions(+), 9 deletions(-)
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--- a/lib/fflush.c
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+++ b/lib/fflush.c
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@@ -33,7 +33,7 @@
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#undef fflush
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-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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+#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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/* Clear the stream's ungetc buffer, preserving the value of ftello (fp). */
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static void
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@@ -72,7 +72,7 @@
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#endif
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-#if ! (defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */)
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+#if ! (defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */)
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# if (defined __sferror || defined __DragonFly__ || defined __ANDROID__) && defined __SNPT
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/* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Android */
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@@ -148,7 +148,7 @@
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if (stream == NULL || ! freading (stream))
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return fflush (stream);
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-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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+#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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clear_ungetc_buffer_preserving_position (stream);
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--- a/lib/fpending.c
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+++ b/lib/fpending.c
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@@ -32,7 +32,7 @@
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/* Most systems provide FILE as a struct and the necessary bitmask in
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<stdio.h>, because they need it for implementing getc() and putc() as
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fast macros. */
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-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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+#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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return fp->_IO_write_ptr - fp->_IO_write_base;
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#elif defined __sferror || defined __DragonFly__ || defined __ANDROID__
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/* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Android */
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--- a/lib/fpurge.c
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+++ b/lib/fpurge.c
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@@ -62,7 +62,7 @@
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/* Most systems provide FILE as a struct and the necessary bitmask in
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<stdio.h>, because they need it for implementing getc() and putc() as
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fast macros. */
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-# if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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+# if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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fp->_IO_read_end = fp->_IO_read_ptr;
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fp->_IO_write_ptr = fp->_IO_write_base;
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/* Avoid memory leak when there is an active ungetc buffer. */
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--- a/lib/freadahead.c
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+++ b/lib/freadahead.c
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@@ -25,7 +25,7 @@
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size_t
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freadahead (FILE *fp)
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{
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-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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+#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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if (fp->_IO_write_ptr > fp->_IO_write_base)
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return 0;
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return (fp->_IO_read_end - fp->_IO_read_ptr)
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--- a/lib/freading.c
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+++ b/lib/freading.c
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@@ -31,7 +31,7 @@
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/* Most systems provide FILE as a struct and the necessary bitmask in
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<stdio.h>, because they need it for implementing getc() and putc() as
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fast macros. */
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-# if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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+# if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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return ((fp->_flags & _IO_NO_WRITES) != 0
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|| ((fp->_flags & (_IO_NO_READS | _IO_CURRENTLY_PUTTING)) == 0
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&& fp->_IO_read_base != NULL));
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--- a/lib/fseeko.c
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+++ b/lib/fseeko.c
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@@ -47,7 +47,7 @@
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#endif
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/* These tests are based on fpurge.c. */
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-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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+#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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if (fp->_IO_read_end == fp->_IO_read_ptr
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&& fp->_IO_write_ptr == fp->_IO_write_base
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&& fp->_IO_save_base == NULL)
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@@ -123,7 +123,7 @@
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return -1;
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}
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-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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+#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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fp->_flags &= ~_IO_EOF_SEEN;
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fp->_offset = pos;
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#elif defined __sferror || defined __DragonFly__ || defined __ANDROID__
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--- a/lib/stdio-impl.h
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+++ b/lib/stdio-impl.h
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@@ -18,6 +18,12 @@
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the same implementation of stdio extension API, except that some fields
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have different naming conventions, or their access requires some casts. */
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+/* Glibc 2.28 made _IO_IN_BACKUP private. For now, work around this
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+ problem by defining it ourselves. FIXME: Do not rely on glibc
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+ internals. */
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+#if !defined _IO_IN_BACKUP && defined _IO_EOF_SEEN
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+# define _IO_IN_BACKUP 0x100
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+#endif
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/* BSD stdio derived implementations. */
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