1 files changed, 50 insertions, 0 deletions
diff --git a/stdio/vsprintf.c b/stdio/vsprintf.c
new file mode 100644
index 0000000000..82be90f1fa
--- /dev/null
+++ b/stdio/vsprintf.c
@@ -0,0 +1,50 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+
+/* Write formatted output to S according to the format string
+   FORMAT, using the argument list in ARG.  */
+int
+DEFUN(vsprintf, (s, format, arg),
+      char *s AND CONST char *format AND va_list arg)
+{
+  int done;
+  FILE f;
+
+  memset((PTR) &f, 0, sizeof(f));
+  f.__magic = _IOMAGIC;
+  f.__mode.__write = 1;
+  f.__bufp = f.__buffer = (char *) s;
+  f.__put_limit = (char *) ULONG_MAX;
+  f.__bufsize = (size_t) (f.__put_limit - f.__bufp);
+  f.__get_limit = f.__buffer;
+  f.__room_funcs.__output = NULL;
+  f.__seen = 1;
+
+  done = vfprintf(&f, format, arg);
+  *f.__bufp = '\0';
+
+  return done;
+}