INITGROUPS

Section: Linux Programmer's Manual (3 )
Updated: 1993-04-05
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NAME

initgroups - initialize the supplementary group access list

SYNOPSIS

#include <grp.h>
#include <sys/types.h>

int initgroups(const char *user, gid_t group);

DESCRIPTION

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.

RETURN VALUE

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

ERRORS

EPERM: The calling process does not have sufficient privileges.
ENOMEM: Insufficient memory to allocate group information structure.

FILES

/etc/group              group database file

CONFORMING TO

SVID 3, BSD 4.3

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