CHDIR(2) BSD Programmer's Manual CHDIR(2) NNAAMMEE cchhddiirr, ffcchhddiirr - change current working directory SSYYNNOOPPSSIISS ##iinncclluuddee <<uunniissttdd..hh>> _i_n_t cchhddiirr(_c_o_n_s_t _c_h_a_r _*_p_a_t_h); _i_n_t ffcchhddiirr(_i_n_t _f_d); DDEESSCCRRIIPPTTIIOONN The _p_a_t_h arument points to the pathname of a directory. The cchhddiirr() function causes the named directory to become the current working direc- tory, that is, the starting point for path searches of pathnames not be- ginning with a slash, `/'. The ffcchhddiirr() function causes the directory referenced by _f_d to become the current working directory, the starting point for path searches of path- names 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. RREETTUURRNN VVAALLUUEESS Upon successful completion, a value of 0 is returned. Otherwise, a value of -1 is returned and _e_r_r_n_o is set to indicate the error. EERRRROORRSS CChhddiirr() 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. [EINVAL] The pathname contains a character with the high-order bit set. [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] _P_a_t_h points outside the process's allocated address space. [EIO] An I/O error occurred while reading from or writing to the file system. FFcchhddiirr() 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 _f_d is not a valid file descriptor. SSEEEE AALLSSOO chroot(2) SSTTAANNDDAARRDDSS CChhddiirr() is expected to conform to IEEE Std 1003.1-1988 (``POSIX''). HHIISSTTOORRYY The ffcchhddiirr() function call appeared in 4.2BSD. 4th Berkeley Distribution June 4, 1993 2