1 | /*- |
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2 | * Copyright (c) 2002-2004 Tim J. Robbins. |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * 1. Redistributions of source code must retain the above copyright |
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9 | * notice, this list of conditions and the following disclaimer. |
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10 | * 2. Redistributions in binary form must reproduce the above copyright |
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11 | * notice, this list of conditions and the following disclaimer in the |
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12 | * documentation and/or other materials provided with the distribution. |
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13 | * |
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14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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24 | * SUCH DAMAGE. |
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25 | */ |
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26 | |
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27 | /* |
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28 | FUNCTION |
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29 | <<fputws>>, <<fputws_unlocked>>---write a wide character string in a file or stream |
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30 | |
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31 | INDEX |
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32 | fputws |
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33 | INDEX |
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34 | fputws_unlocked |
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35 | INDEX |
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36 | _fputws_r |
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37 | INDEX |
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38 | _fputws_unlocked_r |
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39 | |
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40 | SYNOPSIS |
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41 | #include <wchar.h> |
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42 | int fputws(const wchar_t *__restrict <[ws]>, FILE *__restrict <[fp]>); |
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43 | |
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44 | #define _GNU_SOURCE |
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45 | #include <wchar.h> |
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46 | int fputws_unlocked(const wchar_t *__restrict <[ws]>, FILE *__restrict <[fp]>); |
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47 | |
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48 | #include <wchar.h> |
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49 | int _fputws_r(struct _reent *<[ptr]>, const wchar_t *<[ws]>, |
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50 | FILE *<[fp]>); |
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51 | |
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52 | #include <wchar.h> |
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53 | int _fputws_unlocked_r(struct _reent *<[ptr]>, const wchar_t *<[ws]>, |
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54 | FILE *<[fp]>); |
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55 | |
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56 | DESCRIPTION |
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57 | <<fputws>> writes the wide character string at <[ws]> (but without the |
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58 | trailing null) to the file or stream identified by <[fp]>. |
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59 | |
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60 | <<fputws_unlocked>> is a non-thread-safe version of <<fputws>>. |
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61 | <<fputws_unlocked>> may only safely be used within a scope |
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62 | protected by flockfile() (or ftrylockfile()) and funlockfile(). This |
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63 | function may safely be used in a multi-threaded program if and only |
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64 | if they are called while the invoking thread owns the (FILE *) |
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65 | object, as is the case after a successful call to the flockfile() or |
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66 | ftrylockfile() functions. If threads are disabled, then |
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67 | <<fputws_unlocked>> is equivalent to <<fputws>>. |
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68 | |
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69 | <<_fputws_r>> and <<_fputws_unlocked_r>> are simply reentrant versions of the |
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70 | above that take an additional reentrant struct pointer argument: <[ptr]>. |
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71 | |
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72 | RETURNS |
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73 | If successful, the result is a non-negative integer; otherwise, the result |
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74 | is <<-1>> to indicate an error. |
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75 | |
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76 | PORTABILITY |
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77 | <<fputws>> is required by C99 and POSIX.1-2001. |
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78 | |
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79 | <<fputws_unlocked>> is a GNU extension. |
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80 | */ |
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81 | |
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82 | #include <_ansi.h> |
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83 | #include <reent.h> |
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84 | #include <errno.h> |
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85 | #include <limits.h> |
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86 | #include <stdio.h> |
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87 | #include <wchar.h> |
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88 | #include "fvwrite.h" |
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89 | #include "local.h" |
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90 | |
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91 | #ifdef __IMPL_UNLOCKED__ |
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92 | #define _fputws_r _fputws_unlocked_r |
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93 | #define fputws fputws_unlocked |
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94 | #endif |
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95 | |
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96 | int |
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97 | _fputws_r (struct _reent *ptr, |
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98 | const wchar_t *ws, |
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99 | FILE *fp) |
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100 | { |
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101 | size_t nbytes; |
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102 | char buf[BUFSIZ]; |
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103 | #ifdef _FVWRITE_IN_STREAMIO |
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104 | struct __suio uio; |
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105 | struct __siov iov; |
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106 | |
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107 | _newlib_flockfile_start (fp); |
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108 | ORIENT (fp, 1); |
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109 | if (cantwrite (ptr, fp) != 0) |
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110 | goto error; |
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111 | uio.uio_iov = &iov; |
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112 | uio.uio_iovcnt = 1; |
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113 | iov.iov_base = buf; |
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114 | do |
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115 | { |
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116 | nbytes = _wcsrtombs_r(ptr, buf, &ws, sizeof (buf), &fp->_mbstate); |
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117 | if (nbytes == (size_t) -1) |
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118 | goto error; |
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119 | iov.iov_len = uio.uio_resid = nbytes; |
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120 | if (__sfvwrite_r(ptr, fp, &uio) != 0) |
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121 | goto error; |
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122 | } |
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123 | while (ws != NULL); |
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124 | _newlib_flockfile_exit (fp); |
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125 | return (0); |
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126 | |
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127 | error: |
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128 | _newlib_flockfile_end (fp); |
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129 | return (-1); |
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130 | #else |
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131 | _newlib_flockfile_start (fp); |
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132 | ORIENT (fp, 1); |
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133 | if (cantwrite (ptr, fp) != 0) |
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134 | goto error; |
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135 | |
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136 | do |
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137 | { |
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138 | size_t i = 0; |
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139 | nbytes = _wcsrtombs_r (ptr, buf, &ws, sizeof (buf), &fp->_mbstate); |
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140 | if (nbytes == (size_t) -1) |
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141 | goto error; |
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142 | while (i < nbytes) |
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143 | { |
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144 | if (__sputc_r (ptr, buf[i], fp) == EOF) |
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145 | goto error; |
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146 | i++; |
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147 | } |
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148 | } |
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149 | while (ws != NULL); |
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150 | _newlib_flockfile_exit (fp); |
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151 | return (0); |
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152 | |
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153 | error: |
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154 | _newlib_flockfile_end (fp); |
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155 | return (-1); |
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156 | #endif |
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157 | } |
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158 | |
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159 | int |
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160 | fputws (const wchar_t *__restrict ws, |
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161 | FILE *__restrict fp) |
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162 | { |
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163 | struct _reent *reent = _REENT; |
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164 | |
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165 | CHECK_INIT (reent, fp); |
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166 | return _fputws_r (reent, ws, fp); |
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167 | } |
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