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fgetgrent ? get group file entry |
#include <grp.h> #include <stdio.h> #include <sys/types.h> struct group *fgetgrent(FILE *stream); |
The fgetgrent() function returns a pointer to a structure containing the group information from the file stream. The first time it is called it returns the first entry; thereafter, it returns successive entries. The file stream must have the same format as /etc/group. 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 */ }; |
The fgetgrent() function returns the group information structure, or NULL if there are no more entries or an error occurs. |
ENOMEM |
Insufficient memory to allocate group information structure. |
SVID 3 |
getgrnam(3), getgrgid(3), getgrent(3), setgrent(3), endgrent(3) |