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// Copyright 2016 The Emscripten Authors. All rights reserved.
// Emscripten is available under two separate licenses, the MIT license and the
// University of Illinois/NCSA Open Source License. Both these licenses can be
// found in the LICENSE file.
#include <dirent.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <assert.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#define BUF_SIZE (sizeof(dirent)*2)
int main(int argc, char *argv[])
{
int fd = open(".", O_RDONLY | O_DIRECTORY);
assert(fd > 0);
printf("sizeof(dirent): %zu, sizeof(buffer): %zu\n", sizeof(dirent), BUF_SIZE);
bool first = true;
for(;;)
{
char buf[BUF_SIZE];
int nread = getdents(fd, (dirent*)buf, BUF_SIZE);
assert(nread != -1);
if (nread == 0)
break;
// In this test, we provide enough space to read two dirent entries at a time.
// Test that on the first iteration of the loop we get exactly two entries. (there's at least "." and ".." in each directory)
assert(nread == BUF_SIZE || !first);
first = false;
printf("--------------- nread=%d ---------------\n", nread);
printf("i-node# file type d_reclen d_off d_name\n");
int bpos = 0;
while(bpos < nread)
{
dirent *d = (dirent *)(buf + bpos);
printf("%8ld ", (long)d->d_ino);
char d_type = *(buf + bpos + d->d_reclen - 1);
printf("%-10s ", (d_type == DT_REG) ? "regular" :
(d_type == DT_DIR) ? "directory" :
(d_type == DT_FIFO) ? "FIFO" :
(d_type == DT_SOCK) ? "socket" :
(d_type == DT_LNK) ? "symlink" :
(d_type == DT_BLK) ? "block dev" :
(d_type == DT_CHR) ? "char dev" : "???");
printf("%4d %10lld %s\n", d->d_reclen, (long long) d->d_off, d->d_name);
bpos += d->d_reclen;
}
}
}
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