1 files changed, 102 insertions, 0 deletions

diff --git a/private/crt32/stdio/_getbuf.c b/private/crt32/stdio/_getbuf.c
new file mode 100644
index 000000000..59ee055e2
--- /dev/null
+++ b/private/crt32/stdio/_getbuf.c
@@ -0,0 +1,102 @@
+/***
+*_getbuf.c - Get a stream buffer
+*
+*	Copyright (c) 1987-1993, Microsoft Corporation. All rights reserved.
+*
+*Purpose:
+*	Allocate a buffer and init stream data bases.
+*
+*Revision History:
+*	11-06-87   JCR	Initial version (split off from _filbuf.c)
+*	01-11-88   JCR	Moved from mthread/dll only to main code
+*	06-06-88   JCR	Optimized _iob2 references
+*	06-10-88   JCR	Use near pointer to reference _iob[] entries
+*	07-27-88   GJF	Added _cflush++ to force pre-terminator (necessary in
+*			case stdout has been redirected to a file and acquires
+*			a buffer here, and pre-terminator has not already been
+*			forced).
+*	08-25-88  GJF	Don't use FP_OFF() macro for the 386
+*	08-28-89  JCR	Removed _NEAR_ for 386
+*	02-15-90  GJF	_iob[], _iob2[] merge. Also, fixed copyright and
+*			indents.
+*	03-16-90  GJF	Replaced near cdecl with _CALLTYPE1, added #include
+*			<cruntime.h> and removed #include <register.h>. Also,
+*			removed some leftover 16-bit support.
+*	07-23-90  SBM	Replaced <assertm.h> by <assert.h>
+*	10-03-90  GJF	New-style function declarator.
+*	04-27-93  CFW	Change _IONBF size to 2 bytes to hold wide char.
+*       11-04-93  SRW   Dont call malloc in _NTSUBSET_ version
+*
+*******************************************************************************/
+
+#include <cruntime.h>
+#include <stdio.h>
+#include <file2.h>
+#include <assert.h>
+#include <malloc.h>
+#include <internal.h>
+
+/***
+*_getbuf() - Allocate a buffer and init stream data bases
+*
+*Purpose:
+*	Allocates a buffer for a stream and inits the stream data bases.
+*
+*	[NOTE  1: This routine assumes the caller has already checked to make
+*	sure the stream needs a buffer.
+*
+*	[NOTE 2: Multi-thread - Assumes caller has aquired stream lock, if
+*	needed.]
+*
+*Entry:
+*	FILE *stream = stream to allocate a buffer for
+*
+*Exit:
+*	void
+*
+*Exceptions:
+*
+*******************************************************************************/
+
+void _CALLTYPE1 _getbuf (
+	FILE *str
+	)
+{
+	REG1 FILE *stream;
+
+	assert(str != NULL);
+
+#if !defined _NTSUBSET_ || defined _POSIX_
+	/* force library pre-termination procedure */
+	_cflush++;
+#endif // _NTSUBSET_ || _POSIX_
+
+	/* Init pointers */
+	stream = str;
+
+#if !defined _NTSUBSET_ || defined _POSIX_
+	/* Try to get a big buffer */
+
+	if (stream->_base = malloc(BUFSIZ)) {
+
+		/* Got a big buffer */
+		stream->_flag |= _IOMYBUF;
+		stream->_bufsiz = BUFSIZ;
+	}
+
+	else {
+#endif // _NTSUBSET_ || _POSIX_
+
+		/* Did NOT get a buffer - use single char buffering. */
+		stream->_flag |= _IONBF;
+		stream->_base = (char *)&(stream->_charbuf);
+		stream->_bufsiz = 2;
+#if !defined _NTSUBSET_ || defined _POSIX_
+	}
+#endif // _NTSUBSET_ || _POSIX_
+
+	stream->_ptr = stream->_base;
+	stream->_cnt = 0;
+
+	return;
+}