|GETGROUPLIST(3)||Library Functions Manual||GETGROUPLIST(3)|
calculate group access list
char *name, gid_t
getgrouplist() function reads through
the group(5) file and
calculates the group access list for the user specified in
name. The basegid is
automatically included in the groups list. Typically this value is given as
the group number from the password file.
If YP is active and the group file contains no exclusions, the netid(5) file and the netid.byname YP map will be used in addition to the group file. If the group file contains at least one exclusion, the group.byname YP map will be used in addition to the group file.
The resulting group list is returned in the integer array pointed to by groups. The caller specifies the size of the groups array in the integer pointed to by ngroups; the actual number of groups found is returned in ngroups.
getgrouplist() function returns 0 if
successful and -1 if the size of the group list is too small to hold all the
user's groups. Here, the group array will be filled with as many groups as
getgrouplist() function first appeared
getgrouplist() function uses the
routines based on
getgrent(3). If the
invoking program uses any of these routines, the group structure will be
overwritten in the call to
|June 5, 2013||OpenBSD-6.5|