1 | /* SPDX-License-Identifier: BSD-2-Clause */ |
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2 | |
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3 | /** |
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4 | * @file |
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5 | * |
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6 | * This test exercises the following routines: |
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7 | * |
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8 | * + readv |
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9 | * + writev |
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10 | */ |
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11 | |
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12 | /* |
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13 | * COPYRIGHT (c) 1989-2012. |
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14 | * On-Line Applications Research Corporation (OAR). |
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15 | * |
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16 | * Redistribution and use in source and binary forms, with or without |
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17 | * modification, are permitted provided that the following conditions |
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18 | * are met: |
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19 | * 1. Redistributions of source code must retain the above copyright |
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20 | * notice, this list of conditions and the following disclaimer. |
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21 | * 2. Redistributions in binary form must reproduce the above copyright |
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22 | * notice, this list of conditions and the following disclaimer in the |
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23 | * documentation and/or other materials provided with the distribution. |
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24 | * |
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25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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26 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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28 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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29 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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32 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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33 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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34 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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35 | * POSSIBILITY OF SUCH DAMAGE. |
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36 | */ |
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37 | |
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38 | |
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39 | #ifdef HAVE_CONFIG_H |
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40 | #include "config.h" |
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41 | #endif |
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42 | |
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43 | #include <fcntl.h> |
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44 | #include <unistd.h> |
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45 | #include <errno.h> |
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46 | #include <utime.h> |
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47 | #include <string.h> |
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48 | #include <inttypes.h> |
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49 | #include <limits.h> |
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50 | |
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51 | #include <stdio.h> |
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52 | #include <unistd.h> |
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53 | #include <sys/uio.h> |
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54 | |
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55 | #if defined(__rtems__) |
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56 | #include <rtems.h> |
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57 | #include <rtems/libio.h> |
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58 | #include <pmacros.h> |
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59 | |
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60 | const char rtems_test_name[] = "PSXRDWRV"; |
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61 | #else |
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62 | #define TRUE 1 |
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63 | #define FALSE 0 |
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64 | #include <stdlib.h> |
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65 | #define rtems_test_exit(_s) exit(_s) |
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66 | #endif |
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67 | |
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68 | /* forward declarations to avoid warnings */ |
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69 | int test_main(void); |
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70 | int fillPatternBuffer(void); |
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71 | int doFunctionalTest(void); |
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72 | int doErrorTest(void); |
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73 | |
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74 | #define TESTFILE "testfile1.tst" |
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75 | |
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76 | /* This buffer size is assumed in the iovec initialization below */ |
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77 | #define MAX_BUFFER 1000 |
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78 | unsigned char PatternBuffer[MAX_BUFFER]; |
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79 | unsigned char ReadBuffer[MAX_BUFFER]; |
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80 | |
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81 | /* |
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82 | * fillPatternBuffer function |
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83 | * |
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84 | * Fill the test buffer. |
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85 | * |
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86 | * Returns: TRUE if buffer filled |
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87 | * FALSE if buffer failed to fill |
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88 | * |
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89 | */ |
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90 | int fillPatternBuffer(void) |
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91 | { |
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92 | int retval = TRUE; |
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93 | int i; |
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94 | |
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95 | for (i=0 ; i<200 ; i++ ) PatternBuffer[i] = 'a'; |
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96 | for ( ; i<400 ; i++ ) PatternBuffer[i] = 'b'; |
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97 | for ( ; i<600 ; i++ ) PatternBuffer[i] = 'c'; |
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98 | for ( ; i<800 ; i++ ) PatternBuffer[i] = 'd'; |
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99 | for ( ; i<1000 ; i++ ) PatternBuffer[i] = 'e'; |
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100 | return retval; |
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101 | } |
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102 | |
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103 | /* |
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104 | * doFunctionalTest function |
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105 | * |
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106 | * Write a file with writev and then read it back with readv. |
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107 | * |
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108 | * Returns: TRUE if all operations worked as expected |
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109 | * FALSE if an operation did not work as expected. |
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110 | * |
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111 | */ |
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112 | int doFunctionalTest(void) |
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113 | { |
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114 | FILE *fp; |
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115 | int fd; |
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116 | struct iovec rdvec[4]; |
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117 | struct iovec wrvec[4]; |
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118 | int rc; |
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119 | |
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120 | |
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121 | /* |
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122 | * Setup the iovec |
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123 | */ |
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124 | wrvec[0].iov_base = &PatternBuffer[0]; |
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125 | wrvec[0].iov_len = 100; |
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126 | wrvec[1].iov_base = &PatternBuffer[100]; |
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127 | wrvec[1].iov_len = 200; |
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128 | wrvec[2].iov_base = &PatternBuffer[300]; |
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129 | wrvec[2].iov_len = 300; |
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130 | wrvec[3].iov_base = &PatternBuffer[600]; |
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131 | wrvec[3].iov_len = 400; |
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132 | |
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133 | rdvec[0].iov_base = &ReadBuffer[0]; |
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134 | rdvec[0].iov_len = 400; |
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135 | rdvec[1].iov_base = &ReadBuffer[400]; |
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136 | rdvec[1].iov_len = 300; |
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137 | rdvec[2].iov_base = &ReadBuffer[700]; |
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138 | rdvec[2].iov_len = 200; |
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139 | rdvec[3].iov_base = &ReadBuffer[900]; |
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140 | rdvec[3].iov_len = 100; |
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141 | |
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142 | /* |
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143 | * Write the File |
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144 | */ |
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145 | fp = fopen(TESTFILE, "wt"); |
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146 | if ( fp == NULL ) { |
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147 | printf( "fopen for write: %d=%s\n", errno, strerror(errno)); |
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148 | return FALSE; |
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149 | } |
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150 | fd = fileno(fp); |
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151 | |
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152 | rc = writev(fd, wrvec, 4); |
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153 | if ( rc <= 0 ) { |
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154 | printf( "writev: %d=%s\n", errno, strerror(errno) ); |
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155 | return FALSE; |
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156 | } |
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157 | |
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158 | fclose(fp); |
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159 | |
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160 | puts("File written using writev .. OK"); |
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161 | |
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162 | /* |
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163 | * Now read it back and check it |
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164 | */ |
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165 | |
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166 | fp = fopen(TESTFILE, "rt"); |
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167 | if ( fp == NULL ) { |
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168 | printf( "fopen for write: %d=%s\n", errno, strerror(errno)); |
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169 | return FALSE; |
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170 | } |
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171 | fd = fileno(fp); |
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172 | |
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173 | rc = readv(fd, rdvec, 4); |
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174 | if ( rc <= 0 ) { |
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175 | printf( "rd: %d=%s\n", errno, strerror(errno) ); |
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176 | return FALSE; |
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177 | } |
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178 | |
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179 | if ( memcmp( PatternBuffer, ReadBuffer, MAX_BUFFER ) ) { |
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180 | puts("readv .. Buffers do not match"); |
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181 | return FALSE; |
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182 | } |
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183 | |
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184 | puts("File read using readv .. OK"); |
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185 | |
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186 | return TRUE; |
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187 | } |
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188 | |
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189 | /* |
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190 | * doErrorTest function |
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191 | * |
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192 | * Hit all the error cases in readv/writev. |
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193 | * |
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194 | * Returns: TRUE if all operations worked as expected |
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195 | * FALSE if an operation did not work as expected. |
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196 | * |
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197 | */ |
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198 | int doErrorTest(void) |
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199 | { |
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200 | FILE *fp; |
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201 | int fd; |
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202 | struct iovec vec[4]; |
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203 | int rc; |
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204 | |
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205 | /* |
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206 | * Open and close the file to get a bad file descriptor |
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207 | */ |
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208 | fp = fopen(TESTFILE, "wt"); |
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209 | if ( fp == NULL ) { |
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210 | printf( "fopen for error 1: %d=%s\n", errno, strerror(errno)); |
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211 | return FALSE; |
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212 | } |
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213 | fd = fileno(fp); |
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214 | fclose(fp); |
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215 | |
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216 | /* clear out the vector to ensure it is valid */ |
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217 | memset(vec, 0, sizeof(vec)); |
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218 | |
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219 | /* writev -- bad file descriptor */ |
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220 | puts("writev bad file descriptor -- EBADF"); |
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221 | rc = writev(fd, vec, 4); |
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222 | if ( (rc != -1) || (errno != EBADF) ) { |
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223 | printf( "writev error 1: %d=%s\n", errno, strerror(errno) ); |
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224 | return FALSE; |
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225 | } |
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226 | |
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227 | /* readv -- bad file descriptor */ |
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228 | puts("readv bad file descriptor -- EBADF"); |
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229 | rc = read(fd, vec, 4); |
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230 | if ( (rc != -1) || (errno != EBADF) ) { |
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231 | printf( "readv error 1: %d=%s\n", errno, strerror(errno) ); |
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232 | return FALSE; |
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233 | } |
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234 | |
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235 | /* |
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236 | * Open the file for the rest of the tests |
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237 | */ |
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238 | fp = fopen(TESTFILE, "w+"); |
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239 | if ( fp == NULL ) { |
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240 | printf( "fopen for error 2: %d=%s\n", errno, strerror(errno)); |
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241 | return FALSE; |
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242 | } |
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243 | fd = fileno(fp); |
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244 | |
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245 | #ifdef __rtems__ |
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246 | /* writev -- bad iovec pointer */ |
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247 | puts("writev bad iovec pointer -- EINVAL"); |
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248 | rc = writev(fd, NULL, 4); |
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249 | if ( (rc != -1) || (errno != EINVAL) ) { |
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250 | printf( "writev error 2: %d=%s\n", errno, strerror(errno) ); |
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251 | fclose(fp); |
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252 | return FALSE; |
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253 | } |
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254 | |
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255 | /* readv -- bad iovec pointer */ |
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256 | puts("readv bad iovec pointer -- EINVAL"); |
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257 | rc = readv(fd, NULL, 4); |
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258 | if ( (rc != -1) || (errno != EINVAL) ) { |
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259 | printf( "readv error 2: %d=%s\n", errno, strerror(errno) ); |
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260 | fclose(fp); |
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261 | return FALSE; |
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262 | } |
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263 | |
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264 | /* writev -- bad iovcnt 0 */ |
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265 | puts("writev bad iovcnt of 0 -- EINVAL"); |
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266 | rc = writev(fd, vec, 0); |
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267 | if ( (rc != -1) || (errno != EINVAL) ) { |
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268 | printf( "writev error 3: %d=%s\n", errno, strerror(errno) ); |
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269 | fclose(fp); |
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270 | return FALSE; |
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271 | } |
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272 | |
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273 | /* readv -- bad iovcnt 0 */ |
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274 | puts("readv bad iovcnt of 0 -- EINVAL"); |
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275 | rc = readv(fd, vec, 0); |
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276 | if ( (rc != -1) || (errno != EINVAL) ) { |
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277 | printf( "readv error 3: %d=%s\n", errno, strerror(errno) ); |
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278 | fclose(fp); |
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279 | return FALSE; |
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280 | } |
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281 | #endif /* __rtems__ */ |
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282 | |
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283 | /* writev -- bad iovcnt negative */ |
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284 | puts("writev bad iovcnt negative -- EINVAL"); |
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285 | rc = writev(fd, vec, -2); |
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286 | if ( (rc != -1) || (errno != EINVAL) ) { |
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287 | printf( "writev error 4: %d=%s\n", errno, strerror(errno) ); |
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288 | fclose(fp); |
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289 | return FALSE; |
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290 | } |
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291 | |
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292 | /* readv -- bad iovcnt negative */ |
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293 | puts("readv bad iovcnt negative -- EINVAL"); |
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294 | rc = readv(fd, vec, -100); |
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295 | if ( (rc != -1) || (errno != EINVAL) ) { |
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296 | printf( "readv error 4: %d=%s\n", errno, strerror(errno) ); |
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297 | fclose(fp); |
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298 | return FALSE; |
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299 | } |
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300 | |
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301 | #ifdef __rtems__ |
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302 | /* writev -- bad iov[i].iov_base */ |
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303 | vec[0].iov_base = vec; |
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304 | vec[0].iov_len = 100; |
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305 | vec[1].iov_base = NULL; |
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306 | vec[1].iov_len = 100; |
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307 | puts("writev bad iov[i].iov_base -- EINVAL"); |
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308 | rc = writev(fd, vec, 2); |
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309 | if ( (rc != -1) || (errno != EINVAL) ) { |
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310 | printf( "writev error 5: %d=%s\n", errno, strerror(errno) ); |
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311 | fclose(fp); |
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312 | return FALSE; |
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313 | } |
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314 | |
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315 | /* readv -- bad iov[i].iov_base */ |
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316 | vec[0].iov_base = vec; |
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317 | vec[0].iov_len = 100; |
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318 | vec[1].iov_base = NULL; |
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319 | vec[1].iov_len = 100; |
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320 | puts("readv bad iov[i].iov_base -- EINVAL"); |
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321 | rc = readv(fd, vec, 2); |
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322 | if ( (rc != -1) || (errno != EINVAL) ) { |
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323 | printf( "readv error 5: %d=%s\n", errno, strerror(errno) ); |
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324 | fclose(fp); |
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325 | return FALSE; |
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326 | } |
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327 | #endif /* __rtems__ */ |
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328 | |
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329 | /* writev -- bad iov[i].iov_len < 0 */ |
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330 | vec[0].iov_base = vec; |
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331 | vec[0].iov_len = 100; |
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332 | vec[1].iov_base = vec; |
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333 | vec[1].iov_len = -10; |
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334 | puts("writev bad iov[i].iov_len < 0 -- EINVAL"); |
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335 | rc = writev(fd, vec, 2); |
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336 | if ( (rc != -1) || (errno != EINVAL) ) { |
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337 | printf( "writev error 6: %d=%s\n", errno, strerror(errno) ); |
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338 | fclose(fp); |
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339 | return FALSE; |
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340 | } |
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341 | |
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342 | /* readv -- bad iov[i].iov_len < 0 */ |
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343 | vec[0].iov_base = vec; |
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344 | vec[0].iov_len = 100; |
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345 | vec[1].iov_base = vec; |
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346 | vec[1].iov_len = -1024; |
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347 | puts("readv bad iov[i].iov_len < 0 -- EINVAL"); |
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348 | rc = readv(fd, vec, 2); |
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349 | if ( (rc != -1) || (errno != EINVAL) ) { |
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350 | printf( "readv error 6: %d=%s\n", errno, strerror(errno) ); |
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351 | fclose(fp); |
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352 | return FALSE; |
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353 | } |
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354 | |
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355 | /* writev -- iov_len total overflows */ |
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356 | vec[0].iov_base = vec; |
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357 | vec[0].iov_len = SIZE_MAX; |
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358 | vec[1].iov_base = vec; |
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359 | vec[1].iov_len = SIZE_MAX; |
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360 | vec[2].iov_base = vec; |
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361 | vec[2].iov_len = SIZE_MAX; |
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362 | puts("writev iov_len total overflows -- EINVAL"); |
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363 | rc = writev(fd, vec, 3); |
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364 | if ( (rc != -1) || (errno != EINVAL) ) { |
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365 | printf( "writev error 7: rc=%d %d=%s\n", rc, errno, strerror(errno) ); |
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366 | fclose(fp); |
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367 | return FALSE; |
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368 | } |
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369 | |
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370 | /* readv -- iov_len total overflows */ |
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371 | vec[0].iov_base = vec; |
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372 | vec[0].iov_len = SIZE_MAX; |
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373 | vec[1].iov_base = vec; |
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374 | vec[1].iov_len = SIZE_MAX; |
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375 | vec[2].iov_base = vec; |
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376 | vec[2].iov_len = SIZE_MAX; |
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377 | puts("readv iov_len total overflows -- EINVAL"); |
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378 | rc = readv(fd, vec, 3); |
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379 | if ( (rc != -1) || (errno != EINVAL) ) { |
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380 | printf( "read error 7: rc=%d %d=%s\n", rc, errno, strerror(errno) ); |
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381 | fclose(fp); |
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382 | return FALSE; |
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383 | } |
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384 | |
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385 | /* writev -- all zero length buffers */ |
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386 | vec[0].iov_base = vec; |
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387 | vec[0].iov_len = 0; |
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388 | vec[1].iov_base = NULL; |
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389 | vec[1].iov_len = 0; |
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390 | puts("writev iov_len works with no effect -- OK"); |
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391 | rc = writev(fd, vec, 2); |
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392 | if ( (rc != 0) ) { |
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393 | printf( "writev error 8: %d=%s\n", errno, strerror(errno) ); |
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394 | fclose(fp); |
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395 | return FALSE; |
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396 | } |
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397 | |
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398 | /* readv -- all zero length buffers */ |
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399 | vec[0].iov_base = vec; |
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400 | vec[0].iov_len = 0; |
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401 | vec[1].iov_base = NULL; |
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402 | vec[1].iov_len = 0; |
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403 | puts("readv iov_len works with no effect -- OK"); |
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404 | rc = readv(fd, vec, 2); |
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405 | if ( (rc != 0) ) { |
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406 | printf( "readv error 8: %d=%s\n", errno, strerror(errno) ); |
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407 | fclose(fp); |
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408 | return FALSE; |
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409 | } |
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410 | |
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411 | #ifdef __rtems__ |
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412 | puts("readv bad iovcnt of IOV_MAX + 1 -- EINVAL"); |
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413 | rc = readv(fd, vec, IOV_MAX + 1); |
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414 | if ( (rc != -1) || (errno != EINVAL) ) { |
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415 | printf( "readv error 9: %d=%s\n", errno, strerror(errno) ); |
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416 | fclose(fp); |
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417 | return FALSE; |
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418 | } |
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419 | |
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420 | puts("writev bad iovcnt of IOV_MAX + 1 -- EINVAL"); |
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421 | rc = writev(fd, vec, IOV_MAX + 1); |
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422 | if ( (rc != -1) || (errno != EINVAL) ) { |
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423 | printf( "writev error 9: %d=%s\n", errno, strerror(errno) ); |
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424 | fclose(fp); |
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425 | return FALSE; |
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426 | } |
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427 | #endif /* __rtems__ */ |
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428 | |
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429 | fclose(fp); |
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430 | return TRUE; |
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431 | } |
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432 | |
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433 | |
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434 | /* --------------------------------------------------------------- |
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435 | * Main function |
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436 | * |
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437 | * main entry point to the test |
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438 | * |
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439 | * --------------------------------------------------------------- |
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440 | */ |
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441 | |
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442 | #if defined(__rtems__) |
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443 | int test_main(void) |
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444 | #else |
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445 | int main( |
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446 | int argc, |
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447 | char **argv |
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448 | ) |
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449 | #endif |
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450 | { |
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451 | TEST_BEGIN(); |
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452 | |
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453 | if ( fillPatternBuffer() != TRUE ) { |
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454 | puts("Error filling pattern buffer" ); |
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455 | rtems_test_exit(0); |
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456 | } |
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457 | |
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458 | if (doErrorTest() != TRUE) { |
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459 | puts("Error during error test!!!!"); |
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460 | rtems_test_exit(0); |
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461 | } |
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462 | if (doFunctionalTest() != TRUE) { |
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463 | puts("Error during functional test!!!!"); |
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464 | rtems_test_exit(0); |
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465 | } |
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466 | |
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467 | unlink(TESTFILE); |
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468 | TEST_END(); |
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469 | rtems_test_exit(0); |
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470 | } |
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