1FGETGRENT(3) Linux Programmer's Manual FGETGRENT(3)
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6 fgetgrent - get group file entry
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9 #include <stdio.h>
10 #include <sys/types.h>
11 #include <grp.h>
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13 struct group *fgetgrent(FILE *stream);
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16 The fgetgrent() function returns a pointer to a structure containing
17 the group information from the file stream. The first time it is
18 called it returns the first entry; thereafter, it returns successive
19 entries. The file stream must have the same format as /etc/group.
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21 The group structure is defined in <grp.h> as follows:
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23 struct group {
24 char *gr_name; /* group name */
25 char *gr_passwd; /* group password */
26 gid_t gr_gid; /* group ID */
27 char **gr_mem; /* group members */
28 };
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31 The fgetgrent() function returns the group information structure, or
32 NULL if there are no more entries or an error occurs.
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35 ENOMEM Insufficient memory to allocate group information structure.
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38 SVr4
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41 endgrent(3), fgetgrent_r(3), getgrent(3), getgrgid(3), getgrnam(3),
42 putgrent(3), setgrent(3)
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46GNU 1993-04-04 FGETGRENT(3)