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chdir(2) [freebsd man page]

CHDIR(2)						      BSD System Calls Manual							  CHDIR(2)

NAME
chdir, fchdir -- change current working directory LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <unistd.h> int chdir(const char *path); int fchdir(int fd); DESCRIPTION
The path argument points to the pathname of a directory. The 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 fchdir() system call causes the directory referenced by 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
Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable errno is set to indicate the error. ERRORS
The chdir() system call will fail and the current working directory will be unchanged if one or more of the following are true: [ENOTDIR] A component of the path prefix is not a directory. [ENAMETOOLONG] A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters. [ENOENT] The named directory does not exist. [ELOOP] Too many symbolic links were encountered in translating the pathname. [EACCES] Search permission is denied for any component of the path name. [EFAULT] The path argument points outside the process's allocated address space. [EIO] An I/O error occurred while reading from or writing to the file system. The fchdir() system call will fail and the current working directory will be unchanged if one or more of the following are true: [EACCES] Search permission is denied for the directory referenced by the file descriptor. [ENOTDIR] The file descriptor does not reference a directory. [EBADF] The argument fd is not a valid file descriptor. SEE ALSO
chroot(2) STANDARDS
The chdir() system call is expected to conform to ISO/IEC 9945-1:1990 (``POSIX.1''). HISTORY
The chdir() system call appeared in Version 7 AT&T UNIX. The fchdir() system call appeared in 4.2BSD. BSD
December 11, 1993 BSD

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CHDIR(2)						      BSD System Calls Manual							  CHDIR(2)

NAME
chdir, fchdir -- change current working directory SYNOPSIS
#include <unistd.h> int chdir(const char *path); int fchdir(int fildes); DESCRIPTION
The path argument points to the pathname of a directory. The chdir() function 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 fchdir() function causes the directory referenced by fildes 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
Upon successful completion, a value of 0 is returned. Otherwise, a value of -1 is returned and errno is set to indicate the error. ERRORS
The chdir() system call will fail and the current working directory will be unchanged if one or more of the following are true: [EACCES] Search permission is denied for any component of the path name. [EFAULT] Path points outside the process's allocated address space. [EIO] An I/O error occurred while reading from or writing to the file system. [ELOOP] Too many symbolic links were encountered in translating the pathname. This is taken to be indicative of a looping sym- bolic link. [ENAMETOOLONG] A component of a pathname exceeded {NAME_MAX} characters, or an entire path name exceeded {PATH_MAX} characters. [ENOENT] The named directory does not exist. [ENOTDIR] A component of the path prefix is not a directory. fchdir() will fail and the current working directory will be unchanged if one or more of the following are true: [EACCES] Search permission is denied for the directory referenced by the file descriptor. [EBADF] The argument fildes is not a valid file descriptor. [EINTR] fchdir() was interrupted by a signal. [EIO] An I/O error occurred while reading from or writing to the file system. [ENOTDIR] The file descriptor does not reference a directory. SEE ALSO
chroot(2) STANDARDS
The chdir() is expected to conform to IEEE Std 1003.1-1988 (``POSIX.1''). HISTORY
The fchdir() function call appeared in 4.2BSD. 4th Berkeley Distribution December 11, 1993 4th Berkeley Distribution

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