/* $NetBSD: gen-win32.h,v 1.1.4.2 2024/02/29 11:38:39 martin Exp $ */ /* * Copyright (C) Internet Systems Consortium, Inc. ("ISC") * * SPDX-License-Identifier: MPL-2.0 * * 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 https://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 #include #include #include #include #include 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); } } inline struct tm * gmtime_r(const time_t *clock, struct tm *result) { errno_t ret = gmtime_s(result, clock); if (ret != 0) { errno = ret; return (NULL); } return (result); } ISC_LANG_ENDDECLS #endif /* DNS_GEN_WIN32_H */