diff options
Diffstat (limited to 'libpwdgrp/getgrnam.c')
-rw-r--r-- | libpwdgrp/getgrnam.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/libpwdgrp/getgrnam.c b/libpwdgrp/getgrnam.c new file mode 100644 index 0000000..62b2b26 --- /dev/null +++ b/libpwdgrp/getgrnam.c @@ -0,0 +1,50 @@ +/* + * getgrnam.c - This file is part of the libc-8086/grp package for ELKS, + * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include "busybox.h" + +#include <unistd.h> +#include <string.h> +#include <errno.h> +#include <fcntl.h> +#include "grp.h" + +struct group *getgrnam(const char *name) +{ + int grp_fd; + struct group *group; + + if (name == NULL) { + errno = EINVAL; + return NULL; + } + + if ((grp_fd = open("/etc/group", O_RDONLY)) < 0) + return NULL; + + while ((group = __getgrent(grp_fd)) != NULL) + if (!strcmp(group->gr_name, name)) { + close(grp_fd); + return group; + } + + close(grp_fd); + return NULL; +} |