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/*
* Copyright 2013 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 <assert.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
static void create_file(const char *path, const char *buffer, int mode) {
int fd = open(path, O_WRONLY | O_CREAT | O_EXCL, mode);
assert(fd >= 0);
int err = write(fd, buffer, sizeof(char) * strlen(buffer));
assert(err == (sizeof(char) * strlen(buffer)));
close(fd);
}
void setup() {
int err;
err = mkdir("nocanread", 0111);
assert(!err);
err = mkdir("foobar", 0777);
assert(!err);
create_file("foobar/file.txt", "ride into the danger zone", 0666);
}
void cleanup() {
rmdir("nocanread");
unlink("foobar/file.txt");
rmdir("foobar");
}
void test() {
int err;
long loc, loc2;
DIR *dir;
struct dirent *ent;
struct dirent ent_r;
struct dirent *result;
int i;
// check bad opendir input
dir = opendir("noexist");
assert(!dir);
assert(errno == ENOENT);
dir = opendir("nocanread");
assert(!dir);
assert(errno == EACCES);
dir = opendir("foobar/file.txt");
assert(!dir);
assert(errno == ENOTDIR);
// check bad readdir input
//dir = opendir("foobar");
//closedir(dir);
//ent = readdir(dir);
//assert(!ent);
// XXX musl doesn't have enough error handling for this: assert(errno == EBADF);
// check bad readdir_r input
//dir = opendir("foobar");
//closedir(dir);
//err = readdir_r(dir, NULL, &result);
// XXX musl doesn't have enough error handling for this: assert(err == EBADF);
//
// do a normal read with readdir
//
dir = opendir("foobar");
assert(dir);
int seen[3] = { 0, 0, 0 };
for (i = 0; i < 3; i++) {
errno = 0;
ent = readdir(dir);
//printf("ent, errno: %p, %d\n", ent, errno);
assert(ent);
//printf("%d file: %s (%d : %d)\n", i, ent->d_name, ent->d_reclen, sizeof(*ent));
assert(ent->d_reclen == sizeof(*ent));
if (!seen[0] && !strcmp(ent->d_name, ".")) {
assert(ent->d_type & DT_DIR);
seen[0] = 1;
continue;
}
if (!seen[1] && !strcmp(ent->d_name, "..")) {
assert(ent->d_type & DT_DIR);
seen[1] = 1;
continue;
}
if (!seen[2] && !strcmp(ent->d_name, "file.txt")) {
assert(ent->d_type & DT_REG);
seen[2] = 1;
continue;
}
assert(0 && "odd filename");
}
ent = readdir(dir);
if (ent) printf("surprising ent: %p : %s\n", ent, ent->d_name);
assert(!ent);
// test rewinddir
rewinddir(dir);
ent = readdir(dir);
assert(!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..") || !strcmp(ent->d_name, "file.txt"));
// test seek / tell
rewinddir(dir);
ent = readdir(dir);
assert(!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..") || !strcmp(ent->d_name, "file.txt"));
loc = telldir(dir);
assert(loc >= 0);
//printf("loc=%d\n", loc);
loc2 = ent->d_off;
ent = readdir(dir);
char name_at_loc[1024];
strcpy(name_at_loc, ent->d_name);
//printf("name_at_loc: %s\n", name_at_loc);
assert(!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..") || !strcmp(ent->d_name, "file.txt"));
ent = readdir(dir);
assert(!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..") || !strcmp(ent->d_name, "file.txt"));
seekdir(dir, loc);
ent = readdir(dir);
assert(ent);
//printf("check: %s / %s\n", ent->d_name, name_at_loc);
assert(!strcmp(ent->d_name, name_at_loc));
seekdir(dir, loc2);
ent = readdir(dir);
assert(ent);
//printf("check: %s / %s\n", ent->d_name, name_at_loc);
assert(!strcmp(ent->d_name, name_at_loc));
//
// do a normal read with readdir_r
//
rewinddir(dir);
err = readdir_r(dir, &ent_r, &result);
assert(!err);
assert(&ent_r == result);
assert(!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..") || !strcmp(ent->d_name, "file.txt"));
err = readdir_r(dir, &ent_r, &result);
assert(!err);
assert(&ent_r == result);
assert(!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..") || !strcmp(ent->d_name, "file.txt"));
err = readdir_r(dir, &ent_r, &result);
assert(!err);
assert(&ent_r == result);
assert(!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..") || !strcmp(ent->d_name, "file.txt"));
err = readdir_r(dir, &ent_r, &result);
assert(!err);
assert(!result);
err = closedir(dir);
assert(!err);
puts("success");
}
void test_scandir() {
struct dirent **namelist;
int n;
n = scandir(".", &namelist, NULL, alphasort);
printf("n: %d\n", n);
if (n < 0)
return;
else {
while (n--) {
printf("name: %s\n", namelist[n]->d_name);
free(namelist[n]);
}
free(namelist);
}
}
int main() {
atexit(cleanup);
signal(SIGABRT, cleanup);
setup();
test();
test_scandir();
#ifdef REPORT_RESULT
REPORT_RESULT(0);
#endif
return EXIT_SUCCESS;
}
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