1 files changed, 61 insertions, 0 deletions
diff --git a/libio/vasprintf.c b/libio/vasprintf.c
new file mode 100644
index 0000000000..ee92f83b1c
--- /dev/null
+++ b/libio/vasprintf.c
@@ -0,0 +1,61 @@
+/*
+Copyright (C) 1995 Free Software Foundation
+
+This file is part of the GNU IO Library.  This library is free
+software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+This 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+As a special exception, if you link this library with files
+compiled with a GNU compiler to produce an executable, this does not cause
+the resulting executable to be covered by the GNU General Public License.
+This exception does not however invalidate any other reasons why
+the executable file might be covered by the GNU General Public License. */
+
+#include <malloc.h>
+#include "libioP.h"
+#include "stdio.h"
+#include "strfile.h"
+
+int
+_IO_vasprintf (result_ptr, format, args)
+     char **result_ptr;
+     const char *format;
+     _IO_va_list args;
+{
+  /* Initial size of the buffer to be used.  Will be doubled each time an
+     overflow occurs.  */
+  const _IO_size_t init_string_size = 100;
+  char *string;
+  _IO_strfile sf;
+  int ret;
+  string = ALLOC_BUF(init_string_size);
+  if (string == NULL)
+    return -1;
+  _IO_init((_IO_FILE*)&sf, 0);
+  _IO_JUMPS((_IO_FILE*)&sf) = &_IO_str_jumps;
+  _IO_str_init_static ((_IO_FILE*)&sf, string, init_string_size, string);
+  sf._f._flags &= ~_IO_USER_BUF;
+  sf._s._allocate_buffer = (_IO_alloc_type)malloc;
+  sf._s._free_buffer = (_IO_free_type)free;
+  ret = _IO_vfprintf((_IO_FILE*)&sf, format, args);
+  if (ret < 0)
+    return ret;
+  *result_ptr = (char*)realloc(sf._f._IO_buf_base,
+			       (sf._f._IO_write_ptr - sf._f._IO_write_base) +1);
+  if (*result_ptr == NULL)
+    *result_ptr = sf._f._IO_buf_base;
+  (*result_ptr)[sf._f._IO_write_ptr-sf._f._IO_write_base] = '\0';
+  return ret;
+}
+weak_alias (_IO_vasprintf, vasprintf)