-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
+/* $Id$ */
-int setvbuf( FILE * restrict stream, char * restrict buf, int mode, size_t size ) { /* TODO */ };
+/* setvbuf( FILE *, char *, int, size_t )
-/* PDPC code - unreviewed
-/*
-NULL + F = allocate, setup
-NULL + L = allocate, setup
-NULL + N = ignore, return success
-buf + F = setup
-buf + L = setup
-buf + N = ignore, return success
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
*/
-int setvbuf(FILE *stream, char *buf, int mode, size_t size)
-{
- char *mybuf;
+#include <stdio.h>
+#include <stdlib.h>
- if (mode == _IONBF)
- {
- stream->bufTech = mode;
- return (0);
- }
- if (buf == NULL)
- {
- if (size < 2)
- {
- return (-1);
- }
- mybuf = malloc(size + 8);
- if (mybuf == NULL)
- {
- return (-1);
- }
- }
- else
- {
- if (size < 10)
- {
- return (-1);
- }
- mybuf = buf;
- stream->theirBuffer = 1;
- size -= 8;
- }
- free(stream->intBuffer);
- stream->intBuffer = mybuf;
- stream->fbuf = stream->intBuffer + 2;
- *stream->fbuf++ = '\0';
- *stream->fbuf++ = '\0';
- stream->szfbuf = size;
- stream->endbuf = stream->fbuf + stream->szfbuf;
- *stream->endbuf = '\n';
- stream->upto = stream->endbuf;
- stream->bufTech = mode;
- if (!stream->textMode && (stream->bufTech == _IOLBF))
+#ifndef REGTEST
+
+int setvbuf( FILE * _PDCLIB_restrict stream, char * _PDCLIB_restrict buf, int mode, size_t size )
+{
+ /* TODO: Only allowed on a "virgin" stream; add check. */
+ if ( ( stream->status & ( _IOFBF | _IOLBF | _IONBF ) ) /* Only allowed on "virgin" stream */
+ || ( ( mode != _IOFBF ) && ( mode != _IOLBF ) && ( mode != _IONBF ) ) /* invalid mode */
+ || ( ( buf == NULL ) && ( ( buf = malloc( size ) ) == NULL ) ) /* no memory available */
+ )
{
- stream->quickBin = 0;
+ return -1;
}
- return (0);
+ stream->status |= mode;
+ stream->buffer = buf;
+ stream->bufsize = size;
+ return 0;
}
-*/
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+ TESTCASE( NO_TESTDRIVER );
+ return TEST_RESULTS;
+}
+
+#endif