| 13 | |
| 14 | #include <dirent.h> |
| 15 | int libc_dirent() |
| 16 | { |
| 17 | DIR * dirp; |
| 18 | long int save3 = 0; |
| 19 | long int cur; |
| 20 | int i = 0; |
| 21 | int result = 0; |
| 22 | struct dirent *dp; |
| 23 | |
| 24 | dirp = opendir("/"); |
| 25 | for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp)) |
| 26 | { |
| 27 | /* save position 3 (after fourth entry) */ |
| 28 | if (i++ == 3) |
| 29 | save3 = telldir(dirp); |
| 30 | |
| 31 | printf("%s\n", dp->d_name); |
| 32 | |
| 33 | /* stop at 400 (just to make sure dirp->__offset and dirp->__size are |
| 34 | scrambled */ |
| 35 | if (i == 400) |
| 36 | break; |
| 37 | } |
| 38 | |
| 39 | printf("going back past 4-th entry...\n"); |
| 40 | |
| 41 | /* go back to saved entry */ |
| 42 | seekdir(dirp, save3); |
| 43 | |
| 44 | /* Check whether telldir equals to save3 now. */ |
| 45 | cur = telldir(dirp); |
| 46 | if (cur != save3) |
| 47 | { |
| 48 | printf("seekdir (d, %ld); telldir (d) == %ld\n", save3, cur); |
| 49 | result = 1; |
| 50 | } |
| 51 | |
| 52 | /* print remaining files (3-last) */ |
| 53 | for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp)) |
| 54 | printf("%s\n", dp->d_name); |
| 55 | |
| 56 | closedir(dirp); |
| 57 | return result; |
| 58 | } |
| 59 | FINSH_FUNCTION_EXPORT(libc_dirent, dirent test for libc); |