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+/*
+ * Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 1999-2001 Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: gen-unix.h,v 1.19 2007/06/19 23:47:16 tbox Exp $ */
+
+/*! \file
+ * \brief
+ * This file is responsible for defining two operations that are not
+ * directly portable between Unix-like systems and Windows NT, option
+ * parsing and directory scanning. It is here because it was decided
+ * that the "gen" build utility was not to depend on libisc.a, so
+ * the functions delcared in isc/commandline.h and isc/dir.h could not
+ * be used.
+ *
+ * The commandline stuff is really just a wrapper around getopt().
+ * The dir stuff was shrunk to fit the needs of gen.c.
+ */
+
+#ifndef DNS_GEN_UNIX_H
+#define DNS_GEN_UNIX_H 1
+
+#include <sys/types.h> /* Required on some systems for dirent.h. */
+
+#include <dirent.h>
+#include <unistd.h> /* XXXDCL Required for ?. */
+
+#include <isc/boolean.h>
+#include <isc/lang.h>
+
+#ifdef NEED_OPTARG
+extern char *optarg;
+#endif
+
+#define isc_commandline_parse getopt
+#define isc_commandline_argument optarg
+
+typedef struct {
+ DIR *handle;
+ char *filename;
+} isc_dir_t;
+
+ISC_LANG_BEGINDECLS
+
+static isc_boolean_t
+start_directory(const char *path, isc_dir_t *dir) {
+ dir->handle = opendir(path);
+
+ if (dir->handle != NULL)
+ return (ISC_TRUE);
+ else
+ return (ISC_FALSE);
+
+}
+
+static isc_boolean_t
+next_file(isc_dir_t *dir) {
+ struct dirent *dirent;
+
+ dir->filename = NULL;
+
+ if (dir->handle != NULL) {
+ dirent = readdir(dir->handle);
+ if (dirent != NULL)
+ dir->filename = dirent->d_name;
+ }
+
+ if (dir->filename != NULL)
+ return (ISC_TRUE);
+ else
+ return (ISC_FALSE);
+}
+
+static void
+end_directory(isc_dir_t *dir) {
+ if (dir->handle != NULL)
+ (void)closedir(dir->handle);
+
+ dir->handle = NULL;
+}
+
+ISC_LANG_ENDDECLS
+
+#endif /* DNS_GEN_UNIX_H */