[0895bdb] | 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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