initgroups: inicializovat seznam doplňkových skupin

Originální popis anglicky: initgroups - initialize the supplementary group access list

Návod, kniha: Linux Programmer's Manual

STRUČNĚ

#include <sys/types.h>
#include <grp.h>
 
int initgroups(const char *user, gid_t group);

POPIS / INSTRUKCE

The initgroups() function initializes the group access list by reading the group database /etc/group and using all groups of which user is a member. The additional group group is also added to the list. The user argument must be non-NULL.

NÁVRATOVÁ HODNOTA

The initgroups() function returns 0 on success, or -1 if an error occurs.

CHYBY / ERRORY

ENOMEM

Insufficient memory to allocate group information structure.

EPERM

The calling process has insufficient privilege. See the underlying system call setgroups(2).

FILES

/etc/group		group database file

ODPOVÍDAJÍCÍ

SVID 3, BSD 4.3

NOTES

The prototype for initgroups is only available if _BSD_SOURCE is defined (either explicitly, or implicitly, by not defining _POSIX_SOURCE or compiling with the -ansi flag).

SOUVISEJÍCÍ

getgroups(2), setgroups(2)