usr/src/lib/libc/port/i18n/putws.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1986 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 /*
  33  * Putws transforms process codes in wchar_t array pointed to by
  34  * "ptr" into a byte string, and writes the string followed
  35  * by a new-line character to stdout.
  36  */
  37
  38 #include "lint.h"
  39 #include "file64.h"
  40 #include <stdio.h>
  41 #include <stdlib.h>
  42 #include <wchar.h>
  43 #include <limits.h>
  44 #include "stdiom.h"
  45 #include "libc.h"
  46
  47 int
  48 putws(const wchar_t *ptr)
  49 {
  50         wchar_t *ptr0 = (wchar_t *)ptr;
  51         ptrdiff_t diff;
  52         rmutex_t        *lk;
  53
  54         FLOCKFILE(lk, stdout);
  55         for (; *ptr; ptr++) {           /* putwc till NULL */
  56                 if (fputwc(*ptr, stdout) == EOF) {
  57                         FUNLOCKFILE(lk);
  58                         return (EOF);
  59                 }
  60         }
  61         (void) fputwc('\n', stdout); /* append a new line */
  62         FUNLOCKFILE(lk);
  63
  64         if (fflush(stdout))  /* flush line */
  65                 return (EOF);
  66         diff = ptr - ptr0;
  67         if (diff <= INT_MAX)
  68                 return ((int)diff);
  69         else
  70                 return (EOF);
  71 }