/* Copyright (C) 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #include <stdbool.h> #include <stdio.h> #include <gshadow.h> #define _S(x) x ? x : "" /* Write an entry to the given stream. This must know the format of the group file. */ int putsgent (const struct sgrp *g, FILE *stream) { int errors = 0; _IO_flockfile (stream); if (fprintf (stream, "%s:%s:", g->sg_namp, _S (g->sg_passwd)) < 0) ++errors; bool first = true; char **sp = g->sg_adm; if (sp != NULL) while (*sp != NULL) { if (fprintf (stream, "%s%s", first ? "" : ",", *sp++) < 0) { ++errors; break; } first = false; } if (putc_unlocked (':', stream) == EOF) ++errors; first = true; sp = g->sg_mem; if (sp != NULL) while (*sp != NULL) { if (fprintf (stream, "%s%s", first ? "" : ",", *sp++) < 0) { ++errors; break; } first = false; } if (putc_unlocked ('\n', stream) == EOF) ++errors; _IO_funlockfile (stream); return errors ? -1 : 0; }