1 | /* |
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2 | * This is a native test to explore how the readdir() family works. |
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3 | * Newlib supports the following readdir() family members: |
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4 | * |
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5 | * closedir() - |
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6 | * readdir() - |
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7 | * scandir() - |
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8 | * opendir() - |
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9 | * rewinddir() - |
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10 | * telldir() - BSD not in POSIX |
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11 | * seekdir() - BSD not in POSIX |
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12 | * |
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13 | * |
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14 | * seekdir() takes an offset which is a byte offset. The Linux |
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15 | * implementation of this appears to seek to the ((off/DIRENT_SIZE) + 1) |
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16 | * record where DIRENT_SIZE seems to be 12 bytes. |
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17 | * |
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18 | * |
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19 | * |
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20 | * $Id$ |
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21 | */ |
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22 | #include <stdio.h> |
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23 | #include <sys/types.h> |
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24 | #include <fcntl.h> |
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25 | #include <dirent.h> |
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26 | #include <string.h> |
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27 | #include <assert.h> |
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28 | #include <unistd.h> |
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29 | #include <errno.h> |
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30 | |
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31 | #include "/usr1/rtems/mg10/rtems-mg10/c/src/lib/libc/libio_.h" |
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32 | |
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33 | DIR *directory; |
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34 | DIR *directory2; |
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35 | DIR *directory3; |
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36 | DIR *directory_not; |
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37 | |
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38 | #ifndef __P |
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39 | #define __P(args)() |
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40 | #endif |
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41 | |
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42 | int scandir ( const char *dirname, |
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43 | struct dirent *** namelist, |
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44 | int (*select) __P((struct dirent *)), |
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45 | int (*dcomp) __P((const void *, const void *)) |
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46 | ); |
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47 | |
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48 | #if defined(__rtems__) |
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49 | #define d_type d_reclen |
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50 | #endif |
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51 | |
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52 | void printdir( DIR *directory ) |
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53 | { |
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54 | struct dirent *d; |
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55 | |
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56 | printf( " %-20s %8s %8s %8s %4s\n", |
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57 | " name", "inode", " offset", "reclen", " type" ); |
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58 | d = readdir(directory); |
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59 | |
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60 | while (d) { |
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61 | printf( " %-20s %8d %8d %6d 0x%04x\n", |
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62 | d->d_name, (int)d->d_ino, (int)d->d_off, d->d_reclen, d->d_type ); |
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63 | d = readdir(directory); |
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64 | |
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65 | } |
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66 | } |
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67 | |
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68 | char *many_files[] = { |
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69 | "a", |
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70 | "b", |
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71 | "c", |
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72 | "d", |
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73 | "e", |
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74 | "f", |
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75 | "g", |
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76 | "h", |
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77 | "i", |
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78 | "j", |
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79 | "k", |
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80 | "l", |
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81 | "m", |
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82 | "n", |
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83 | "o", |
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84 | "p", |
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85 | "q", |
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86 | "r", |
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87 | "s", |
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88 | "t", |
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89 | "u", |
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90 | "v", |
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91 | "w", |
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92 | "x", |
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93 | "y", |
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94 | "z", |
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95 | "aa", |
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96 | "ab", |
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97 | "ac", |
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98 | "ad", |
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99 | "ae", |
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100 | "af", |
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101 | "ag", |
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102 | "ah", |
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103 | "ai", |
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104 | "aj", |
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105 | "ak", |
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106 | "al", |
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107 | "am", |
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108 | "an", |
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109 | "ao", |
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110 | "ap", |
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111 | "aq", |
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112 | "ar" |
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113 | }; |
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114 | |
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115 | char *dnames[] = { |
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116 | "a", |
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117 | "b", |
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118 | "c", |
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119 | "d", |
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120 | "e", |
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121 | "f", |
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122 | "c/y", |
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123 | "c/z", |
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124 | "c/x", |
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125 | "c/y/a3333", |
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126 | "c/y/j123", |
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127 | "END" |
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128 | }; |
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129 | |
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130 | int select1 ( struct dirent *entry ) |
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131 | { |
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132 | printf("SCANDIR SELECT1 accepts nodename: %s\n", entry->d_name ); |
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133 | return 1; |
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134 | } |
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135 | |
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136 | int select2 ( struct dirent *entry ) |
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137 | { |
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138 | if( strcmp( entry->d_name, "y") == 0 ) { |
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139 | printf("SCANDIR SELECT accepted nodename: %s\n", entry->d_name ); |
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140 | return 1; |
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141 | } |
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142 | printf("SCANDIR SELECT rejected nodename: %s\n", entry->d_name ); |
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143 | return 0; |
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144 | } |
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145 | |
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146 | int compare_ascending( struct dirent **a, struct dirent **b ) |
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147 | { |
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148 | int i; |
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149 | |
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150 | i = strcmp ( |
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151 | (char *)((struct dirent *)(*a)->d_name), |
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152 | (char *)((struct dirent *)(*b)->d_name) |
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153 | ); |
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154 | return i; |
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155 | } |
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156 | |
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157 | |
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158 | int compare_descending( struct dirent **a, struct dirent **b ) |
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159 | { |
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160 | int i; |
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161 | |
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162 | i = strcmp ( |
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163 | (char *)((struct dirent *)(*b)->d_name), |
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164 | (char *)((struct dirent *)(*a)->d_name) |
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165 | ); |
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166 | |
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167 | return i; |
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168 | } |
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169 | |
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170 | #if defined(__rtems__) |
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171 | int test_main(void) |
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172 | #else |
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173 | int main( |
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174 | int argc, |
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175 | char **argv |
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176 | ) |
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177 | #endif |
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178 | { |
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179 | int fd; |
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180 | int i; |
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181 | int status; |
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182 | off_t off; |
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183 | struct dirent *d_not; |
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184 | struct dirent **namelist; |
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185 | struct stat s; |
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186 | |
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187 | |
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188 | printf( "\n\n*** READDIR TEST ***\n" ); |
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189 | |
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190 | printf( "\nchdir to the root directory\n" ); |
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191 | status = chdir( "/" ); |
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192 | printf( "chdir() status : %d\n\n", status ); |
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193 | |
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194 | printf( "\nCreating a series of directories under /\n" ); |
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195 | i=0; |
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196 | while ( strcmp(dnames[i], "END") != 0 ) |
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197 | { |
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198 | status = mkdir( dnames[i], 0x1c0 ); |
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199 | printf("Creating directory: %s %d %d ", dnames[i], status, errno ); |
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200 | if ( errno == 0 ) |
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201 | printf(" Success\n"); |
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202 | else |
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203 | printf(" Failure\n"); |
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204 | |
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205 | i++; |
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206 | } |
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207 | |
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208 | status = mkdir( "/many", 0x1c0 ); |
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209 | status = chdir( "/many" ); |
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210 | for (i = 0; i<=44; i++) { |
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211 | fd = open (many_files[i], O_CREAT); |
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212 | close (fd); |
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213 | } |
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214 | directory_not = opendir( "/many" ); |
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215 | printdir ( directory_not ); |
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216 | d_not = readdir( directory_not ); |
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217 | |
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218 | fd = open ("/b/my_file", O_CREAT); |
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219 | assert( fd != -1 ); |
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220 | close (fd); |
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221 | |
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222 | status = scandir( |
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223 | "/b/my_file", |
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224 | &namelist, |
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225 | select1, |
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226 | NULL |
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227 | ); |
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228 | |
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229 | fd = open( "/b/new_file", O_CREAT ); |
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230 | assert( fd != -1 ); |
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231 | |
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232 | status = fcntl( fd, F_SETFD, 1 ); |
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233 | assert( status == 0 ); |
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234 | status = fcntl( fd, F_GETFD, 1 ); |
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235 | assert( status == 1 ); |
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236 | |
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237 | status = fcntl( fd, F_DUPFD, 1 ); |
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238 | assert ( status == -1 ); |
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239 | |
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240 | status = fcntl( fd, F_GETFL, 1 ); |
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241 | assert ( status == -1 ); |
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242 | |
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243 | status = fcntl( fd, F_SETFL, 1 ); |
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244 | assert ( status == -1 ); |
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245 | |
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246 | status = fcntl( fd, F_GETLK, 1 ); |
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247 | assert ( status == -1 ); |
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248 | |
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249 | status = fcntl( fd, F_SETLK, 1 ); |
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250 | assert ( status == -1 ); |
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251 | |
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252 | status = fcntl( fd, F_SETLKW, 1 ); |
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253 | assert ( status == -1 ); |
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254 | |
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255 | status = fcntl( fd, F_SETOWN, 1 ); |
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256 | assert ( status == -1 ); |
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257 | |
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258 | status = fcntl( fd, F_GETOWN, 1 ); |
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259 | assert ( status == -1 ); |
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260 | |
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261 | status = fcntl( fd, 0xb, 1 ); |
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262 | assert( status == -1 ); |
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263 | |
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264 | directory_not = opendir ("/b/my_file"); |
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265 | d_not = readdir(directory_not); |
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266 | |
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267 | directory_not = opendir ("/a"); |
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268 | d_not = readdir (directory_not); |
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269 | |
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270 | status = chdir ("/b/my_file"); |
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271 | assert (status == -1); |
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272 | |
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273 | printf( "\nPerforming stat of directory /\n"); |
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274 | status = stat( "/", &s ); |
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275 | printf("status for stat : %d, size of directory: %d\n\n", |
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276 | status,(int)s.st_size); |
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277 | |
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278 | puts( "\nOpening directory /" ); |
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279 | directory = opendir("/"); |
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280 | |
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281 | assert( directory ); |
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282 | |
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283 | printdir(directory); |
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284 | |
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285 | printf("\nmkdir /d/my_dir\n"); |
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286 | status = mkdir( "/d/my_dir", 0x1c0 ); |
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287 | printf("Open /d/my_dir\n"); |
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288 | directory_not = opendir( "/d/my_dir" ); |
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289 | assert( directory_not ); |
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290 | |
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291 | printf( "remove /d/my_dir.\n" ); |
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292 | status = rmdir( "/d/my_dir" ); |
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293 | assert( status == 0 ); |
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294 | |
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295 | printf( "close /d/my_dir.\n" ); |
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296 | closedir( directory_not ); |
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297 | |
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298 | printf( "\nOpening directory /c\n" ); |
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299 | directory2 = opendir("/c"); |
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300 | |
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301 | assert( directory2 ); |
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302 | |
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303 | printdir(directory2); |
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304 | status = closedir( directory2 ); |
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305 | |
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306 | printf( "\nOpening directory /c/y\n" ); |
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307 | directory3 = opendir("/c/y"); |
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308 | |
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309 | assert( directory3 ); |
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310 | |
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311 | printdir(directory3); |
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312 | status = closedir( directory3 ); |
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313 | |
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314 | printf( "\nLSEEK to the start of the open directory\n" ); |
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315 | lseek( directory->dd_fd, 0, SEEK_SET ); |
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316 | printdir(directory); |
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317 | |
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318 | lseek( directory->dd_fd, 0, SEEK_CUR ); |
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319 | |
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320 | lseek( directory->dd_fd, 0, SEEK_END ); |
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321 | |
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322 | lseek( directory->dd_fd, 0, -99 ); |
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323 | |
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324 | printf( "\nRewinding directory\n" ); |
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325 | rewinddir( directory ); |
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326 | printdir(directory); |
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327 | |
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328 | /* Don't know how to check this one automatically. */ |
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329 | printf( "Send rewinddir a NULL pointer\n"); |
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330 | rewinddir( NULL ); |
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331 | |
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332 | printf( "\nSeek directory\n" ); |
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333 | printf( "telldir() should report only sizeof(struct dirent) increments \n" ); |
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334 | printf( "in position. Sizeof(struct dirent): %d\n", sizeof(struct dirent) ); |
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335 | rewinddir( directory ); |
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336 | for( off=0 ; off<=200 ; off=off + sizeof(struct dirent) / 4 ) { |
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337 | seekdir( directory, off ); |
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338 | printf( |
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339 | "seeked to %2d -- currently at %2d\n", |
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340 | (int)off, |
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341 | (int)telldir(directory) |
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342 | ); |
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343 | } |
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344 | |
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345 | seekdir( NULL, off ); |
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346 | |
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347 | printf( "\nClosing directory\n" ); |
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348 | status = closedir( directory ); |
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349 | |
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350 | printf( "\nSCANDIR TEST\n"); |
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351 | printf( "\nselection rule 1\n"); |
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352 | printf( "scanning for any entry under directory /c\n\n"); |
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353 | status = scandir( |
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354 | "/c", |
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355 | &namelist, |
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356 | select1, |
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357 | NULL |
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358 | ); |
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359 | printf("\nscandir status: %d\n", status ); |
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360 | for ( i=0; i<status; i++) |
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361 | { |
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362 | printf("Selected Node Name: %s\n", namelist[i]->d_name ); |
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363 | } |
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364 | |
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365 | printf( "\nselection rule 2\n"); |
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366 | printf( "scanning for any entry under directory /c whose name = y\n\n"); |
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367 | status = scandir( |
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368 | "/c", |
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369 | &namelist, |
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370 | select2, |
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371 | NULL |
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372 | ); |
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373 | printf("\nscandir status: %d\n", status ); |
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374 | for ( i=0; i<status; i++) |
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375 | { |
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376 | printf("Selected Node Name: %s\n", namelist[i]->d_name ); |
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377 | } |
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378 | |
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379 | printf( "\nSCANDIR with sorting\n" ); |
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380 | printf( "\nselection rule 1\n"); |
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381 | printf( "scanning for any entry under directory /c\n"); |
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382 | printf( "sort in ascending order\n\n"); |
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383 | status = scandir( |
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384 | "/c", |
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385 | &namelist, |
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386 | select1, |
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387 | compare_ascending |
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388 | ); |
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389 | printf("\nscandir status: %d\n", status ); |
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390 | for ( i=0; i<status; i++) |
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391 | { |
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392 | printf("Selected and Sorted Node Name: %s\n", namelist[i]->d_name ); |
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393 | } |
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394 | |
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395 | |
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396 | printf( "\nSCANDIR with sorting\n" ); |
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397 | printf( "\nselection rule 1\n"); |
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398 | printf( "scanning for any entry under directory /c\n"); |
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399 | printf( "sort in descending order\n\n"); |
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400 | status = scandir( |
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401 | "/c", |
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402 | &namelist, |
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403 | select1, |
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404 | compare_descending |
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405 | ); |
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406 | printf("scandir status: %d\n", status ); |
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407 | for ( i=0; i<status; i++) |
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408 | { |
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409 | printf("Selected and Sorted Node Name: %s\n", namelist[i]->d_name ); |
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410 | } |
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411 | |
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412 | |
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413 | printf( "\n\n*** END OF READDIR TEST ***\n" ); |
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414 | exit(0); |
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415 | } |
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416 | |
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