Manpages - putgrent.3

putgrent - write a group database entry to a file

  #define _GNU_SOURCE /* See feature_test_macros(7) */
  #include <grp.h>

  int putgrent(const struct group *restrict grp",FILE*restrict"stream);

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 */
  };

The function returns zero on success, and a nonzero value on error.

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

This function is a GNU extension.

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

This page is part of release 5.13 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.