getgrouplist man page on 4.4BSD

Man page or keyword search:  
man Server   1065 pages
apropos Keyword Search (all sections)
Output format
4.4BSD logo
[printable version]

GETGROUPLIST(3)		 BSD Library Functions Manual	       GETGROUPLIST(3)

     getgrouplist — calculate group access list

     #include <unistd.h>

     getgrouplist(const char *name, int basegid, int *groups, int *ngroups);

     The getgrouplist() function reads through the group 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.

     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

     The getgrouplist() function returns -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 will fit.

     /etc/group	 group membership list

     setgroups(2), initgroups(3)

     The getgrouplist() function first appeared in 4.4BSD.

     The 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 getgrouplist().

BSD				 June 9, 1993				   BSD

List of man pages available for 4.4BSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
Vote for polarhome
Free Shell Accounts :: the biggest list on the net