Other Alias
chdirLIBRARY
Lb libcSYNOPSIS
In unistd.h Ft int Fn chdir const char *path Ft int Fn fchdir int fdDESCRIPTION
The Fa path argument points to the pathname of a directory. The Fn chdir system call causes the named directory to become the current working directory, that is, the starting point for path searches of pathnames not beginning with a slash, `/'The Fn fchdir system call causes the directory referenced by Fa fd to become the current working directory, the starting point for path searches of pathnames not beginning with a slash, `/'
In order for a directory to become the current directory, a process must have execute (search) access to the directory.
RETURN VALUES
Rv -stdERRORS
The Fn chdir system call will fail and the current working directory will be unchanged if one or more of the following are true:- Bq Er ENOTDIR
- A component of the path prefix is not a directory.
- Bq Er ENAMETOOLONG
- A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters.
- Bq Er ENOENT
- The named directory does not exist.
- Bq Er ELOOP
- Too many symbolic links were encountered in translating the pathname.
- Bq Er EACCES
- Search permission is denied for any component of the path name.
- Bq Er EFAULT
- The Fa path argument points outside the process's allocated address space.
- Bq Er EIO
- An I/O error occurred while reading from or writing to the file system.
The Fn fchdir system call will fail and the current working directory will be unchanged if one or more of the following are true:
- Bq Er EACCES
- Search permission is denied for the directory referenced by the file descriptor.
- Bq Er ENOTDIR
- The file descriptor does not reference a directory.
- Bq Er EBADF
- The argument Fa fd is not a valid file descriptor.
STANDARDS
The Fn chdir system call is expected to conform to St -p1003.1-90 .HISTORY
The Fn chdir system call appeared in AT&T System v7 . The Fn fchdir system call appeared in BSD 4.2