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GETGRENT(3) Linux Programmer's Manual GETGRENT(3) NAME getgrent, setgrent, endgrent - get group file entry SYNOPSIS #include <grp.h> #include <sys/types.h> struct group *getgrent(void); void setgrent(void); void endgrent(void); DESCRIPTION The getgrent() function returns a pointer to a structure containing the group information from /etc/group. The first time it is called it re- turns the first entry; thereafter, it returns successive entries. The setgrent() function rewinds the file pointer to the beginning of the /etc/group file. The endgrent() function closes the /etc/group file. The group structure is defined in _grp.h_ as follows: struct group { char *gr_name; /* group name */ char *gr_passwd; /* group password */ gid_t gr_gid; /* group id */ char **gr_mem; /* group members */ }; RETURN VALUE The getgrent() function returns the group information structure, or NULL if there are no more entries or an error occurs. ERRORS ENOMEM Insufficient memory to allocate group information structure. FILES /etc/group group database file CONFORMING TO SVID 3, BSD 4.3 SEE ALSO fgetgrent(3), getgrnam(3), getgrgid(3) GNU 1993-04-04 GETGRENT(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | FILES | CONFORMING TO | SEE ALSO
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