access

Arguments

Returns

Zero is returned if the access mode is valid, otherwise -1 is returned and the errno is set.

Description

This function checks a file for the following permissions. Two or more permissions in bitwise OR combinations can be checked at one time.

The library "const/Filesys.lsp" must be required to use the constants listed above.

Example

Gamma> require_lisp("const/Filesys");
"/usr/cogent/lib/const/Filesys.lsp"
Gamma> system("touch /tmp/access_test");
0
Gamma> system("chmod a=rx /tmp/access_test");
0
Gamma> access("/tmp/access_test", R_OK|X_OK);
0
Gamma> access("/tmp/access_test", W_OK);
-1
Gamma> 
		

See Also

is_busy, is_file, is_readable, is_writable, errno