initgroups - phpMan

INITGROUPS(3)              Linux Programmer’s Manual             INITGROUPS(3)



NAME
       initgroups - initialize the supplementary group access list

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

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).

SEE ALSO
       getgroups(2), setgroups(2)



GNU                               1993-04-05                     INITGROUPS(3)

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