3 access \- determine accessibility of file
10 int access(char *name, int mode)
19 read permission is expected;
25 the file merely need exist.
27 all directories leading to the file
29 Zero is returned if the desired access is permitted,
32 Only access for open is checked.
33 A file may look executable, but
35 will fail unless it is in proper format.
47 .B /sys/src/libc/9sys/access.c
54 Since file permissions are checked by the server and group information
55 is not known to the client,
57 must open the file to check permissions.
60 to check simple existence.)