com.oracle.svm.core.posix.headers

Class Grp

java.lang.Object

com.oracle.svm.core.posix.headers.Grp

public class Grp
extends Object

Definitions manually translated from the C header file grp.h.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Grp.group The group structure.
static interface	Grp.groupPointer

Constructor Summary

Constructors

Constructor and Description
Grp()

Method Summary

Modifier and Type	Method and Description
static void	endgrent() Close the group-file stream.
static int	getgrent_r(Grp.group resultbuf, org.graalvm.nativeimage.c.type.CCharPointer buffer, org.graalvm.word.UnsignedWord buflen, Grp.groupPointer result) Reentrant versions of some of the functions above.
static Grp.group	getgrent() Read an entry from the group-file stream, opening it if necessary.
static int	getgrgid_r(int gid, Grp.group resultbuf, org.graalvm.nativeimage.c.type.CCharPointer buffer, org.graalvm.word.UnsignedWord buflen, Grp.groupPointer result) Search for an entry with a matching group ID.
static Grp.group	getgrgid(int gid) Search for an entry with a matching group ID.
static int	getgrnam_r(org.graalvm.nativeimage.c.type.CCharPointer name, Grp.group resultbuf, org.graalvm.nativeimage.c.type.CCharPointer buffer, org.graalvm.word.UnsignedWord buflen, Grp.groupPointer result) Search for an entry with a matching group name.
static Grp.group	getgrnam(org.graalvm.nativeimage.c.type.CCharPointer name) Search for an entry with a matching group name.
static int	getgrouplist(org.graalvm.nativeimage.c.type.CCharPointer user, int group, org.graalvm.nativeimage.c.type.CIntPointer groups, org.graalvm.nativeimage.c.type.CIntPointer ngroups) Store at most *NGROUPS members of the group set for USER into GROUPS.
static int	initgroups(org.graalvm.nativeimage.c.type.CCharPointer user, int group) Initialize the group set for the current user by reading the group database and using all groups of which USER is a member.
static void	setgrent() Rewind the group-file stream.
static int	setgroups(org.graalvm.word.UnsignedWord n, org.graalvm.nativeimage.c.type.CIntPointer groups) Set the group set for the current user to GROUPS (N of them).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Grp

public Grp()

Method Detail

setgrent

public static void setgrent()

Rewind the group-file stream.

endgrent

public static void endgrent()

Close the group-file stream.

getgrent

public static Grp.group getgrent()

Read an entry from the group-file stream, opening it if necessary.

getgrgid

public static Grp.group getgrgid(int gid)

Search for an entry with a matching group ID.

getgrnam

public static Grp.group getgrnam(org.graalvm.nativeimage.c.type.CCharPointer name)

Search for an entry with a matching group name.

getgrent_r

public static int getgrent_r(Grp.group resultbuf,
                             org.graalvm.nativeimage.c.type.CCharPointer buffer,
                             org.graalvm.word.UnsignedWord buflen,
                             Grp.groupPointer result)

Reentrant versions of some of the functions above.

getgrgid_r

public static int getgrgid_r(int gid,
                             Grp.group resultbuf,
                             org.graalvm.nativeimage.c.type.CCharPointer buffer,
                             org.graalvm.word.UnsignedWord buflen,
                             Grp.groupPointer result)

Search for an entry with a matching group ID.

getgrnam_r

public static int getgrnam_r(org.graalvm.nativeimage.c.type.CCharPointer name,
                             Grp.group resultbuf,
                             org.graalvm.nativeimage.c.type.CCharPointer buffer,
                             org.graalvm.word.UnsignedWord buflen,
                             Grp.groupPointer result)

Search for an entry with a matching group name.

setgroups

public static int setgroups(org.graalvm.word.UnsignedWord n,
                            org.graalvm.nativeimage.c.type.CIntPointer groups)

Set the group set for the current user to GROUPS (N of them).

getgrouplist

public static int getgrouplist(org.graalvm.nativeimage.c.type.CCharPointer user,
                               int group,
                               org.graalvm.nativeimage.c.type.CIntPointer groups,
                               org.graalvm.nativeimage.c.type.CIntPointer ngroups)

Store at most *NGROUPS members of the group set for USER into GROUPS. Also include GROUP. The actual number of groups found is returned in *NGROUPS. Return -1 if the if *NGROUPS is too small.

initgroups

public static int initgroups(org.graalvm.nativeimage.c.type.CCharPointer user,
                             int group)

Initialize the group set for the current user by reading the group database and using all groups of which USER is a member. Also include GROUP.