/* Copyright (C) 1997 DJ Delorie, see COPYING.DJ for details */ /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */ #include #include #include #include #include #include #define TOLOWER(c) (isascii(c) && isupper(c) ? tolower (c) : (c)) long pathconf(const char *path, int name) { switch (name) { case _PC_LINK_MAX: return LINK_MAX; case _PC_MAX_CANON: return MAX_CANON; case _PC_MAX_INPUT: return MAX_INPUT; case _PC_NAME_MAX: case _PC_PATH_MAX: { int name_max, path_max; int e = errno; char *lfnenv = getenv ("LFN"); if (!lfnenv || TOLOWER (*lfnenv) != 'n') { errno = 0; _get_volume_info (path, &name_max, &path_max, 0); if (!errno) { errno = e; return (name == _PC_NAME_MAX) ? name_max : path_max; } } return (name == _PC_NAME_MAX) ? NAME_MAX : PATH_MAX; } case _PC_PIPE_BUF: return PIPE_BUF; case _PC_CHOWN_RESTRICTED: return _POSIX_CHOWN_RESTRICTED; case _PC_NO_TRUNC: return _POSIX_NO_TRUNC; case _PC_VDISABLE: return _POSIX_VDISABLE; default: errno = EINVAL; return -1; } }