INITGROUPS(3) | Linux Programmer's Manual | INITGROUPS(3) |
initgroups - initialize the supplementary group access list
#include <grp.h> #include <sys/types.h> int initgroups(const char *user, gid_t group);
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 initgroups() function returns 0 on success, or -1 if an error occurs.
/etc/group group database file
SVID 3, BSD 4.3
April 5, 1993 | GNU |