HP-UX Reference (11i v2 07/12) - 2 System Calls (vol 5)

getaccess(2) getaccess(2)

[ENOENT] The named ﬁle does not exist (for example, path is null or a component of path does

not exist).

[ENOTDIR] A component of the path preﬁx is not a directory.

[EOPNOTSUPP]

getaccess() is not supported on some types of remote ﬁles.

EXAMPLES

The following call determines the caller’s effective access rights to ﬁle

test and succeeds if the user has

read access:

#include <unistd.h>

#include <sys/getaccess.h>

int mode;

mode = getaccess ("test", UID_EUID, NGROUPS_EGID_SUPP,

(int *) 0, (void *) 0, (void *) 0);

if ((mode >= 0) && (mode & R_OK)) ...

Here is one way to test access rights to ﬁle

/tmp/hold for user ID 23, group ID

109:

int gid = 109;

int mode;

mode = getaccess ("/tmp/hold", 23, 1, & gid,

(void *) 0, (void *) 0);

Should the need arise, the following code builds a gidset that includes the process’s effective group ID:

#include <limits.h>

int gidset [NGROUPS_MAX + 1];

int ngroups;

gidset [0] = getegid();

ngroups=1+getgroups (NGROUPS_MAX, & gidset [1]);

AUTHOR

getaccess() was developed by HP.