chdir2
Change working directory
Usage
#include <unistd.h>
int chdir(const char *path); int fchdir(int fd);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
fchdir():
_XOPEN_SOURCE >= 500
|| /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L
|| /* glibc up to and including 2.19: */ _BSD_SOURCE
Library
Standard C library (libc, -lc)
Overview
chdir() changes the current working directory of the calling process to the directory specified in path.
fchdir() is identical to chdir(); the only difference is that the directory is given as an open file descriptor.
Return value
On success, zero is returned. On error, -1 is returned, and errno is set to indicate the error.
Errors
Depending on the filesystem, other errors can be returned. The more general errors for chdir() are listed below:
- EACCES
-
Search permission is denied for one of the components of path. (See also path_resolution(7).)
- EFAULT
-
path points outside your accessible address space.
- EIO
-
An I/O error occurred.
- ELOOP
-
Too many symbolic links were encountered in resolving path.
- ENAMETOOLONG
-
path is too long.
- ENOENT
-
The directory specified in path does not exist.
- ENOMEM
-
Insufficient kernel memory was available.
- ENOTDIR
-
A component of path is not a directory.
The general errors for fchdir() are listed below:
EACCES
|
Search permission was denied on the directory open on fd. |
|---|---|
EBADF
|
fd is not a valid file descriptor. |
ENOTDIR
|
fd does not refer to a directory. |
Notes
The current working directory is the starting point for interpreting relative pathnames (those not starting with '/').
A child process created via fork(2) inherits its parent's current working directory. The current working directory is left unchanged by execve(2).
Releases
19 releases since Debian 1.1 (Buzz); the text changed 17 times.