1 /*
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms are permitted
6 * provided that the above copyright notice and this paragraph are
7 * duplicated in all such forms and that any documentation,
8 * and/or other materials related to such
9 * distribution and use acknowledge that the software was developed
10 * by the University of California, Berkeley. The name of the
11 * University may not be used to endorse or promote products derived
12 * from this software without specific prior written permission.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16 */
17 /* No user fns here. Pesch 15apr92. */
18
19 #if defined(LIBC_SCCS) && !defined(lint)
20 static char sccsid[] = "%W% (Berkeley) %G%";
21 #endif /* LIBC_SCCS and not lint */
22
23 #include <stdio.h>
24 #include <errno.h>
25 #include "local.h"
26 #include "fvwrite.h"
27
28 /*
29 * Note that this is the same function as __swbuf, just to be called
30 * from wide-char functions!
31 *
32 * The only difference is that we set and test the orientation differently.
33 */
34
35 int
__swbufw(register int c,register FILE * fp)36 __swbufw (
37 register int c,
38 register FILE *fp)
39 {
40 register int n;
41
42 fp->_w = fp->_lbfsize;
43 if (cantwrite (ptr, fp))
44 return EOF;
45 c = (unsigned char) c;
46
47 if (ORIENT (fp, 1) != 1)
48 return EOF;
49
50 n = fp->_p - fp->_bf._base;
51 if (n >= fp->_bf._size)
52 {
53 if (fflush (fp))
54 return EOF;
55 n = 0;
56 }
57 fp->_w--;
58 *fp->_p++ = c;
59 if (++n == fp->_bf._size || (fp->_flags & __SLBF && c == '\n'))
60 if (fflush (fp))
61 return EOF;
62 return c;
63 }
64
