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#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
int main(int argc, char *argv[])
{
int fd;
int ret;
DIR *dir;
struct dirent *ptr;
dir = opendir(argv[1]);
fd = dirfd(dir);
if (fd < 0) {
perror("Failed to get dirfd!");
exit(EXIT_FAILURE);
}
ret = fork();
if (ret == 0) {
int ret1, i;
static int array[11] = {0, 1, 2, 3, 1023, 1024, 1025, 4095,
4096, 4097, 0x7fffffff};
while(1) {
for(i = 0; i < 11; i++) {
ret1 = lseek(fd, array[i++], SEEK_SET);
if (ret1 == -1) {
perror("Seek failed!");
exit(EXIT_FAILURE);
}
}
off_t pos = lseek(fd, 0, SEEK_CUR);
lseek(fd, pos, SEEK_SET);
}
} else {
while (1) {
int ret2 = lseek(fd, 0, SEEK_SET);
if (ret2 == -1) {
perror("Seek failed!");
exit(EXIT_FAILURE);
}
while ((ptr = readdir(dir)))
;
}
}
closedir(dir);
exit(EXIT_SUCCESS);
}
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