1 files changed, 115 insertions, 0 deletions
diff --git a/private/crt32/stdio/swprintf.c b/private/crt32/stdio/swprintf.c
new file mode 100644
index 000000000..b50550edf
--- /dev/null
+++ b/private/crt32/stdio/swprintf.c
@@ -0,0 +1,115 @@
+/***
+*swprintf.c - print formatted to string
+*
+*	Copyright (c) 1985-1992, Microsoft Corporation. All rights reserved.
+*
+*Purpose:
+*	defines swprintf() and _snwprintf() - print formatted data to string
+*
+*Revision History:
+*	05-16-92  KRS	Created from sprintf.c
+*       02-18-93  SRW   Make FILE a local and remove lock usage.
+*
+*******************************************************************************/
+
+#include <cruntime.h>
+#include <stdio.h>
+#include <wchar.h>
+#include <assert.h>
+#include <stdarg.h>
+#include <internal.h>
+#include <limits.h>
+#include <os2dll.h>
+
+#define MAXSTR INT_MAX
+
+
+/***
+#ifndef _COUNT_
+*int swprintf(string, format, ...) - print formatted data to string
+#else
+*int _snwprintf(string, cnt, format, ...) - print formatted data to string
+#endif
+*
+*Purpose:
+*	Prints formatted data to the using the format string to
+*	format data and getting as many arguments as called for
+*	Sets up a FILE so file i/o operations can be used, make
+*	string look like a huge buffer to it, but _flsbuf will
+*	refuse to flush it if it fills up.  Appends '\0' to make
+*	it a true string. _output does the real work here
+*
+*	Allocate the 'fake' _iob[] entry statically instead of on
+*	the stack so that other routines can assume that _iob[]
+*	entries are in are in DGROUP and, thus, are near.
+*
+#ifdef _COUNT_
+*	The _snwprintf() flavor takes a count argument that is
+*	the max number of wide characters that should be written to the
+*	user's buffer.
+#endif
+*
+*	Multi-thread: (1) Since there is no stream, this routine must
+*	never try to get the stream lock (i.e., there is no stream
+*	lock either). (2) Also, since there is only one statically
+*	allocated 'fake' iob, we must lock/unlock to prevent collisions.
+*
+*Entry:
+*	wchar_t *string - pointer to place to put output
+#ifdef _COUNT_
+*	size_t count - max number of wide characters to put in buffer
+#endif
+*	wchar_t *format - format string to control data format/number
+*	of arguments followed by list of arguments, number and type
+*	controlled by format string
+*
+*Exit:
+*	returns number of wide characters printed
+*
+*Exceptions:
+*
+*******************************************************************************/
+
+#ifndef _COUNT_
+
+int _CALLTYPE2 swprintf (
+	wchar_t *string,
+	const wchar_t *format,
+	...
+	)
+#else
+
+int _CALLTYPE2 _snwprintf (
+	wchar_t *string,
+	size_t count,
+	const wchar_t *format,
+	...
+	)
+#endif
+
+{
+        FILE str;
+	REG1 FILE *outfile = &str;
+	va_list arglist;
+	REG2 int retval;
+
+	va_start(arglist, format);
+
+	assert(string != NULL);
+	assert(format != NULL);
+
+	outfile->_flag = _IOWRT|_IOSTRG;
+	outfile->_ptr = outfile->_base = (char *) string;
+#ifndef _COUNT_
+	outfile->_cnt = MAXSTR;
+#else
+	outfile->_cnt = count*sizeof(wchar_t);
+#endif
+
+	retval = _woutput(outfile,format,arglist);
+
+	_putc_lk('\0',outfile); /* no-lock version */
+	_putc_lk('\0',outfile); /* 2nd null byte for wchar_t version */
+
+	return(retval);
+}