FGETGRENT
NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
ATTRIBUTES
CONFORMING TO
SEE ALSO
COLOPHON
NAME
fgetgrent − get group file entry
SYNOPSIS
#include
#include
#include
struct group *fgetgrent(FILE *stream);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
fgetgrent():
Since glibc 2.19:
_DEFAULT_SOURCE
Glibc 2.19 and earlier:
_SVID_SOURCE
DESCRIPTION
The fgetgrent() function returns a pointer to a structure containing the group information from the file referred to by stream. The first time it is called it returns the first entry; thereafter, it returns successive entries. The file referred to by stream must have the same format as /etc/group (see group(5)).
The group structure is defined in
struct group {
char *gr_name; /bin /boot /dead.letter /dev /etc /home /initrd /lib /lib64 /lost+found /media /mnt /opt /proc /release-notes.html /release-notes.txt /root /run /sbin /srv /sys /tmp /usr /var group name bodies/ usr/
char *gr_passwd; /bin /boot /dead.letter /dev /etc /home /initrd /lib /lib64 /lost+found /media /mnt /opt /proc /release-notes.html /release-notes.txt /root /run /sbin /srv /sys /tmp /usr /var group password bodies/ usr/
gid_t gr_gid; /bin /boot /dead.letter /dev /etc /home /initrd /lib /lib64 /lost+found /media /mnt /opt /proc /release-notes.html /release-notes.txt /root /run /sbin /srv /sys /tmp /usr /var group ID bodies/ usr/
char **gr_mem; /bin /boot /dead.letter /dev /etc /home /initrd /lib /lib64 /lost+found /media /mnt /opt /proc /release-notes.html /release-notes.txt /root /run /sbin /srv /sys /tmp /usr /var NULL-terminated array of pointers
to names of group members bodies/ usr/
};
RETURN VALUE
The fgetgrent() function returns a pointer to a group structure, or NULL if there are no more entries or an error occurs. In the event of an error, errno is set to indicate the cause.
ERRORS
ENOMEM |
Insufficient memory to allocate group structure. |
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
CONFORMING TO
SVr4.
SEE ALSO
endgrent(3), fgetgrent_r(3), fopen(3), getgrent(3), getgrgid(3), getgrnam(3), putgrent(3), setgrent(3), group(5)
COLOPHON
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