diff options
Diffstat (limited to 'winsup/cygwin/syscalls.cc')
| -rw-r--r-- | winsup/cygwin/syscalls.cc | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/winsup/cygwin/syscalls.cc b/winsup/cygwin/syscalls.cc index 3eb77fd07..da9cda507 100644 --- a/winsup/cygwin/syscalls.cc +++ b/winsup/cygwin/syscalls.cc @@ -1580,6 +1580,29 @@ access (const char *fn, int flags) return res; } +/* Linux provides this extension; it is basically a wrapper around the + POSIX:2008 faccessat (AT_FDCWD, fn, flags, AT_EACCESS). We also + provide eaccess as an alias for this, in cygwin.din. */ +extern "C" int +euidaccess (const char *fn, int flags) +{ + // flags were incorrectly specified + int res = -1; + if (flags & ~(F_OK|R_OK|W_OK|X_OK)) + set_errno (EINVAL); + else + { + fhandler_base *fh = build_fh_name (fn, NULL, PC_SYM_FOLLOW, stat_suffixes); + if (fh) + { + res = fh->fhaccess (flags, true); + delete fh; + } + } + debug_printf ("returning %d", res); + return res; +} + static void rename_append_suffix (path_conv &pc, const char *path, size_t len, const char *suffix) @@ -3878,9 +3901,12 @@ fchmodat (int dirfd, const char *pathname, mode_t mode, int flags) myfault efault; if (efault.faulted (EFAULT)) return -1; - if (flags & ~AT_SYMLINK_NOFOLLOW) + if (flags) { - set_errno (EINVAL); + /* BSD has lchmod, but Linux does not. POSIX says + AT_SYMLINK_NOFOLLOW is allowed to fail on symlinks; but Linux + blindly fails even for non-symlinks. */ + set_errno ((flags & ~AT_SYMLINK_NOFOLLOW) ? EINVAL : EOPNOTSUPP); return -1; } char *path = tp.c_get (); |