-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
-
-int fputs( const char * restrict s, FILE * restrict stream ) { /* TODO */ };
-
-/* PDPC code - unreviewed
-#ifndef __MVS__
-int fputs(const char *s, FILE *stream)
+/* $Id$ */
+
+/* fputs( const char *, FILE * )
+
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <stdio.h>
+
+#ifndef REGTEST
+#include <_PDCLIB_glue.h>
+
+int fputs_unlocked( const char * _PDCLIB_restrict s,
+ struct _PDCLIB_file_t * _PDCLIB_restrict stream )
+{
+ if ( _PDCLIB_prepwrite( stream ) == EOF )
+ {
+ return EOF;
+ }
+ while ( *s != '\0' )
+ {
+ /* Unbuffered and line buffered streams get flushed when fputs() does
+ write the terminating end-of-line. All streams get flushed if the
+ buffer runs full.
+ */
+ stream->buffer[ stream->bufidx++ ] = *s;
+ if ( ( stream->bufidx == stream->bufsize ) ||
+ ( ( stream->status & _IOLBF ) && *s == '\n' )
+ )
+ {
+ if ( _PDCLIB_flushbuffer( stream ) == EOF )
+ {
+ return EOF;
+ }
+ }
+ ++s;
+ }
+ if ( stream->status & _IONBF )
+ {
+ if ( _PDCLIB_flushbuffer( stream ) == EOF )
+ {
+ return EOF;
+ }
+ }
+ return 0;
+}
+
+int fputs( const char * _PDCLIB_restrict s,
+ struct _PDCLIB_file_t * _PDCLIB_restrict stream )