putgrent(3)

putgrent – write a group database entry to a file

Synopsis

#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <grp.h>
int putgrent(const struct group *grp, FILE *stream);

Description

The putgrent() function is the counterpart for fgetgrent(3). The function writes the content of the provided struct group into the stream. The list of group members must be NULL-terminated or NULL-initialized. The struct group is defined 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 function returns zero on success, and a nonzero value on error.

Attributes

For an explanation of the terms used in this section, see attributes(7).

Conforming To

This function is a GNU extension.

See Also

fgetgrent(3), getgrent(3), group(5)

Colophon

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