diff options
Diffstat (limited to 'lib/dns/gen-win32.h')
| -rw-r--r-- | lib/dns/gen-win32.h | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/lib/dns/gen-win32.h b/lib/dns/gen-win32.h new file mode 100644 index 0000000..4791032 --- /dev/null +++ b/lib/dns/gen-win32.h @@ -0,0 +1,273 @@ +/* + * Copyright (C) Internet Systems Consortium, Inc. ("ISC") + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * See the COPYRIGHT file distributed with this work for additional + * information regarding copyright ownership. + */ + +/* + * Copyright (c) 1987, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * \note This file was adapted from the NetBSD project's source tree, RCS ID: + * NetBSD: getopt.c,v 1.15 1999/09/20 04:39:37 lukem Exp + * + * The primary change has been to rename items to the ISC namespace + * and format in the ISC coding style. + * + * 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 declared in isc/commandline.h and isc/dir.h could not + * be used. + * + * The commandline stuff is pretty much a straight copy from the initial + * isc/commandline.c. The dir stuff was shrunk to fit the needs of gen.c. + */ + +#ifndef DNS_GEN_WIN32_H +#define DNS_GEN_WIN32_H 1 + +#include <stdbool.h> +#include <stdio.h> +#include <string.h> +#include <windows.h> + +#include <isc/lang.h> + +int isc_commandline_index = 1; /* Index into parent argv vector. */ +int isc_commandline_option; /* Character checked for validity. */ + +char *isc_commandline_argument; /* Argument associated with option. */ +char *isc_commandline_progname; /* For printing error messages. */ + +bool isc_commandline_errprint = true; /* Print error messages. */ +bool isc_commandline_reset = true; /* Reset processing. */ + +#define BADOPT '?' +#define BADARG ':' +#define ENDOPT "" + +ISC_LANG_BEGINDECLS + +/* + * getopt -- + * Parse argc/argv argument vector. + */ +int +isc_commandline_parse(int argc, char * const *argv, const char *options) { + static char *place = ENDOPT; + char *option; /* Index into *options of option. */ + + /* + * Update scanning pointer, either because a reset was requested or + * the previous argv was finished. + */ + if (isc_commandline_reset || *place == '\0') { + isc_commandline_reset = false; + + if (isc_commandline_progname == NULL) + isc_commandline_progname = argv[0]; + + if (isc_commandline_index >= argc || + *(place = argv[isc_commandline_index]) != '-') { + /* + * Index out of range or points to non-option. + */ + place = ENDOPT; + return (-1); + } + + if (place[1] != '\0' && *++place == '-' && place[1] == '\0') { + /* + * Found '--' to signal end of options. Advance + * index to next argv, the first non-option. + */ + isc_commandline_index++; + place = ENDOPT; + return (-1); + } + } + + isc_commandline_option = *place++; + option = strchr(options, isc_commandline_option); + + /* + * Ensure valid option has been passed as specified by options string. + * '-:' is never a valid command line option because it could not + * distinguish ':' from the argument specifier in the options string. + */ + if (isc_commandline_option == ':' || option == NULL) { + if (*place == '\0') + isc_commandline_index++; + + if (isc_commandline_errprint && *options != ':') + fprintf(stderr, "%s: illegal option -- %c\n", + isc_commandline_progname, + isc_commandline_option); + + return (BADOPT); + } + + if (*++option != ':') { + /* + * Option does not take an argument. + */ + isc_commandline_argument = NULL; + + /* + * Skip to next argv if at the end of the current argv. + */ + if (*place == '\0') + ++isc_commandline_index; + + } else { + /* + * Option needs an argument. + */ + if (*place != '\0') + /* + * Option is in this argv, -D1 style. + */ + isc_commandline_argument = place; + + else if (argc > ++isc_commandline_index) + /* + * Option is next argv, -D 1 style. + */ + isc_commandline_argument = argv[isc_commandline_index]; + + else { + /* + * Argument needed, but no more argv. + */ + place = ENDOPT; + + /* + * Silent failure with "missing argument" return + * when ':' starts options string, per historical spec. + */ + if (*options == ':') + return (BADARG); + + if (isc_commandline_errprint) + fprintf(stderr, + "%s: option requires an argument -- %c\n", + isc_commandline_progname, + isc_commandline_option); + + return (BADOPT); + } + + place = ENDOPT; + + /* + * Point to argv that follows argument. + */ + isc_commandline_index++; + } + + return (isc_commandline_option); +} + +typedef struct { + HANDLE handle; + WIN32_FIND_DATA find_data; + bool first_file; + char *filename; +} isc_dir_t; + +bool +start_directory(const char *path, isc_dir_t *dir) { + char pattern[_MAX_PATH], *p; + + /* + * Need space for slash-splat and final NUL. + */ + if (strlen(path) + 3 > sizeof(pattern)) + return (false); + + strcpy(pattern, path); + + /* + * Append slash (if needed) and splat. + */ + p = pattern + strlen(pattern); + if (p != pattern && p[-1] != '\\' && p[-1] != ':') + *p++ = '\\'; + *p++ = '*'; + *p++ = '\0'; + + dir->first_file = true; + + dir->handle = FindFirstFile(pattern, &dir->find_data); + + if (dir->handle == INVALID_HANDLE_VALUE) { + dir->filename = NULL; + return (false); + } else { + dir->filename = dir->find_data.cFileName; + return (true); + } +} + +bool +next_file(isc_dir_t *dir) { + if (dir->first_file) + dir->first_file = false; + + else if (dir->handle != INVALID_HANDLE_VALUE) { + if (FindNextFile(dir->handle, &dir->find_data) == TRUE) + dir->filename = dir->find_data.cFileName; + else + dir->filename = NULL; + + } else + dir->filename = NULL; + + if (dir->filename != NULL) + return (true); + else + return (false); +} + +void +end_directory(isc_dir_t *dir) { + if (dir->handle != INVALID_HANDLE_VALUE) + FindClose(dir->handle); +} + +ISC_LANG_ENDDECLS + +#endif /* DNS_GEN_WIN32_H */ |