GETGRAENT(3) — C LIBRARY FUNCTIONS
NAME
getgraent, getgranam, setgraent, endgraent, fgetgraent − get group adjunct file entry
SYNOPSIS
#include <grpadj.h>
struct group_adjunct ∗getgraent()
struct group_adjunct ∗getgranam(name)
char ∗name;
struct group_adjunct ∗fgetgraent(f)
FILE ∗f;
void setgraent()
void endgraent()
DESCRIPTION
getgraent() and getgranam() each return pointers to an object with the following structure containing the broken-out fields of a line in the group adjunct file. Each line contains a group_adjunct structure, defined in the <grpadj.h> header file.
struct group_adjunct {
char ∗gra_name;/∗ the name of the group ∗/
char ∗gra_passwd;/∗ the encrypted group password ∗/
};
When first called, getgraent() returns a pointer to a group_adjunct structure corresponding to the first line in the file. Thereafter, it returns a pointer to the next group_adjunct structure in the file. So successive calls may be used to traverse the entire file.
For locating a particular group, getgranam() searches through the file until it finds group filename, then returns a pointer to that structure.
A call to getgraent() rewinds the group adjunct file to allow repeated searches. A call to endgraent() closes the group adjunct file when processing is complete.
Because read access is required on /etc/security/group.adjunct, getgraent() and getgranam() will fail unless the calling process has effective UID of root.
FILES
/etc/security/group.adjunct
/var/yp/domainname/group.adjunct
SEE ALSO
getlogin(3), getgrent(3), getpwaent(3), getpwent(3), ypserv(8)
DIAGNOSTICS
A NULL pointer is returned on end-of-file or error.
BUGS
All information is contained in a static area, so it must be copied if it is to be saved.
Sun Release 4.0 — Last change: 22 March 1989