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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 */
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