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/*
* Copyright 2021 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 <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
int main() {
// Set up test directories.
assert(mkdir("working", 0777) != -1);
assert(mkdir("/working/test", 0777) != -1);
// Try to print the root directory.
char cwd[100];
char* ret;
ret = getcwd(cwd, sizeof(cwd));
assert(ret == cwd);
printf("Current working dir: %s\n", cwd);
// Try to switch to /working.
chdir("working");
ret = getcwd(cwd, sizeof(cwd));
assert(ret == cwd);
printf("Current working dir: %s\n", cwd);
// Try to switch back to the root directory.
chdir("/");
ret = getcwd(cwd, sizeof(cwd));
assert(ret == cwd);
printf("Current working dir: %s\n", cwd);
// Try to switch to a subdirectory of working.
chdir("/working/test");
ret = getcwd(cwd, sizeof(cwd));
assert(ret == cwd);
printf("Current working dir: %s\n", cwd);
// Try to switch to a non-existent relative path from subdirectory.
// Changing to working in /working/test should fail.
chdir("working");
printf("Errno: %s\n", strerror(errno));
assert(errno == ENOENT);
ret = getcwd(cwd, sizeof(cwd));
assert(ret == cwd);
printf("Current working dir is still: %s\n", cwd);
// Try to switch back to absolute path /working.
errno = 0;
chdir("/working");
printf("Errno: %s\n", strerror(errno));
assert(errno == 0);
ret = getcwd(cwd, sizeof(cwd));
assert(ret == cwd);
printf("Current working dir is now: %s\n", cwd);
// Try to switch to a non-existent absolute path.
errno = 0;
chdir("/foobar");
printf("Errno: %s\n", strerror(errno));
assert(errno == ENOENT);
ret = getcwd(cwd, sizeof(cwd));
assert(ret == cwd);
printf("Current working dir is still: %s\n", cwd);
// Try to switch to /dev.
chdir("/dev");
ret = getcwd(cwd, sizeof(cwd));
assert(ret == cwd);
printf("Current working dir: %s\n", cwd);
// Try to change cwd to a file.
chdir("/dev/stdout");
printf("Errno: %s\n", strerror(errno));
assert(errno == ENOTDIR);
ret = getcwd(cwd, sizeof(cwd));
assert(ret == cwd);
printf("Current working dir is still: %s\n", cwd);
// Try to pass a size of 0.
errno = 0;
getcwd(cwd, 0);
printf("Errno: %s\n", strerror(errno));
assert(errno == EINVAL);
// Try to write to a buffer of size 1.
errno = 0;
char smallBuffer[1];
getcwd(smallBuffer, 1);
assert(errno == ERANGE);
return 0;
}
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