1/*	$NetBSD$	*/
2
3/*
4 * Copyright (C) 2004, 2005, 2007, 2009  Internet Systems Consortium, Inc. ("ISC")
5 * Copyright (C) 1999-2001  Internet Software Consortium.
6 *
7 * Permission to use, copy, modify, and/or distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
12 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
13 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
14 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
15 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
16 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17 * PERFORMANCE OF THIS SOFTWARE.
18 */
19
20/* Id: gen-unix.h,v 1.21 2009/01/17 23:47:42 tbox Exp  */
21
22/*! \file
23 * \brief
24 * This file is responsible for defining two operations that are not
25 * directly portable between Unix-like systems and Windows NT, option
26 * parsing and directory scanning.  It is here because it was decided
27 * that the "gen" build utility was not to depend on libisc.a, so
28 * the functions declared in isc/commandline.h and isc/dir.h could not
29 * be used.
30 *
31 * The commandline stuff is really just a wrapper around getopt().
32 * The dir stuff was shrunk to fit the needs of gen.c.
33 */
34
35#ifndef DNS_GEN_UNIX_H
36#define DNS_GEN_UNIX_H 1
37
38#include <sys/types.h>          /* Required on some systems for dirent.h. */
39
40#include <dirent.h>
41#include <unistd.h>		/* XXXDCL Required for ?. */
42
43#include <isc/boolean.h>
44#include <isc/lang.h>
45
46#ifdef NEED_OPTARG
47extern char *optarg;
48#endif
49
50#define isc_commandline_parse		getopt
51#define isc_commandline_argument 	optarg
52
53typedef struct {
54	DIR *handle;
55	char *filename;
56} isc_dir_t;
57
58ISC_LANG_BEGINDECLS
59
60static isc_boolean_t
61start_directory(const char *path, isc_dir_t *dir) {
62	dir->handle = opendir(path);
63
64	if (dir->handle != NULL)
65		return (ISC_TRUE);
66	else
67		return (ISC_FALSE);
68
69}
70
71static isc_boolean_t
72next_file(isc_dir_t *dir) {
73	struct dirent *dirent;
74
75	dir->filename = NULL;
76
77	if (dir->handle != NULL) {
78		dirent = readdir(dir->handle);
79		if (dirent != NULL)
80			dir->filename = dirent->d_name;
81	}
82
83	if (dir->filename != NULL)
84		return (ISC_TRUE);
85	else
86		return (ISC_FALSE);
87}
88
89static void
90end_directory(isc_dir_t *dir) {
91	if (dir->handle != NULL)
92		(void)closedir(dir->handle);
93
94	dir->handle = NULL;
95}
96
97ISC_LANG_ENDDECLS
98
99#endif /* DNS_GEN_UNIX_H */
100