444 lines
9.5 KiB
C
444 lines
9.5 KiB
C
/**
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* WinPR: Windows Portable Runtime
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* Command-Line Utils
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*
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* Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <winpr/crt.h>
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#include <winpr/cmdline.h>
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/**
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* Command-line syntax: some basic concepts:
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* https://pythonconquerstheuniverse.wordpress.com/2010/07/25/command-line-syntax-some-basic-concepts/
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*/
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/**
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* Command-Line Syntax:
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*
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* <sigil><keyword><separator><value>
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*
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* <sigil>: '/' or '-' or ('+' | '-')
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*
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* <keyword>: option, named argument, flag
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*
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* <separator>: ':' or '='
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*
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* <value>: argument value
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*
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*/
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int CommandLineParseArgumentsA(int argc, LPSTR* argv, COMMAND_LINE_ARGUMENT_A* options,
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DWORD flags,
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void* context, COMMAND_LINE_PRE_FILTER_FN_A preFilter, COMMAND_LINE_POST_FILTER_FN_A postFilter)
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{
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int i, j;
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int status;
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int count;
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size_t length;
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BOOL notescaped;
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const char* sigil;
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size_t sigil_length;
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char* keyword;
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SSIZE_T keyword_length;
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SSIZE_T keyword_index;
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char* separator;
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char* value;
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int toggle;
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status = 0;
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notescaped = FALSE;
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if (!argv)
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return status;
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if (argc == 1)
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{
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if (flags & COMMAND_LINE_IGN_UNKNOWN_KEYWORD)
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status = 0;
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else
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status = COMMAND_LINE_STATUS_PRINT_HELP;
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return status;
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}
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for (i = 1; i < argc; i++)
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{
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BOOL found = FALSE;
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BOOL escaped = TRUE;
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if (preFilter)
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{
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count = preFilter(context, i, argc, argv);
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if (count < 0)
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{
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status = COMMAND_LINE_ERROR;
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return status;
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}
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if (count > 0)
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{
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i += (count - 1);
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continue;
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}
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}
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sigil = argv[i];
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length = strlen(argv[i]);
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if ((sigil[0] == '/') && (flags & COMMAND_LINE_SIGIL_SLASH))
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{
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sigil_length = 1;
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}
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else if ((sigil[0] == '-') && (flags & COMMAND_LINE_SIGIL_DASH))
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{
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sigil_length = 1;
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if (length > 2)
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{
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if ((sigil[1] == '-') && (flags & COMMAND_LINE_SIGIL_DOUBLE_DASH))
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sigil_length = 2;
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}
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}
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else if ((sigil[0] == '+') && (flags & COMMAND_LINE_SIGIL_PLUS_MINUS))
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{
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sigil_length = 1;
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}
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else if ((sigil[0] == '-') && (flags & COMMAND_LINE_SIGIL_PLUS_MINUS))
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{
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sigil_length = 1;
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}
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else if (flags & COMMAND_LINE_SIGIL_NONE)
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{
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sigil_length = 0;
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}
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else if (flags & COMMAND_LINE_SIGIL_NOT_ESCAPED)
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{
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if (notescaped)
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return COMMAND_LINE_ERROR;
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sigil_length = 0;
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escaped = FALSE;
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notescaped = TRUE;
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}
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else
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{
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return COMMAND_LINE_ERROR;
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}
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if ((sigil_length > 0) || (flags & COMMAND_LINE_SIGIL_NONE) ||
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(flags & COMMAND_LINE_SIGIL_NOT_ESCAPED))
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{
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if (length < (sigil_length + 1))
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{
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if ((flags & COMMAND_LINE_IGN_UNKNOWN_KEYWORD))
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continue;
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return COMMAND_LINE_ERROR_NO_KEYWORD;
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}
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keyword_index = sigil_length;
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keyword = &argv[i][keyword_index];
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toggle = -1;
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if (flags & COMMAND_LINE_SIGIL_ENABLE_DISABLE)
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{
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if (strncmp(keyword, "enable-", 7) == 0)
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{
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toggle = TRUE;
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keyword_index += 7;
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keyword = &argv[i][keyword_index];
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}
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else if (strncmp(keyword, "disable-", 8) == 0)
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{
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toggle = FALSE;
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keyword_index += 8;
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keyword = &argv[i][keyword_index];
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}
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}
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separator = NULL;
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if ((flags & COMMAND_LINE_SEPARATOR_COLON) && (!separator))
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separator = strchr(keyword, ':');
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if ((flags & COMMAND_LINE_SEPARATOR_EQUAL) && (!separator))
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separator = strchr(keyword, '=');
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if (separator)
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{
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SSIZE_T separator_index = (separator - argv[i]);
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SSIZE_T value_index = separator_index + 1;
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keyword_length = (separator - keyword);
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value = &argv[i][value_index];
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}
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else
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{
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keyword_length = (length - keyword_index);
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value = NULL;
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}
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if (!escaped)
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continue;
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for (j = 0; options[j].Name != NULL; j++)
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{
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BOOL match = FALSE;
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if (strncmp(options[j].Name, keyword, keyword_length) == 0)
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{
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if (strlen(options[j].Name) == keyword_length)
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match = TRUE;
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}
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if ((!match) && (options[j].Alias != NULL))
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{
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if (strncmp(options[j].Alias, keyword, keyword_length) == 0)
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{
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if (strlen(options[j].Alias) == keyword_length)
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match = TRUE;
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}
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}
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if (!match)
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continue;
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found = match;
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options[j].Index = i;
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if ((flags & COMMAND_LINE_SEPARATOR_SPACE) && ((i + 1) < argc))
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{
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BOOL argument;
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int value_present = 1;
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if (flags & COMMAND_LINE_SIGIL_DASH)
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{
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if (strncmp(argv[i + 1], "-", 1) == 0)
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value_present = 0;
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}
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if (flags & COMMAND_LINE_SIGIL_DOUBLE_DASH)
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{
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if (strncmp(argv[i + 1], "--", 2) == 0)
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value_present = 0;
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}
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if (flags & COMMAND_LINE_SIGIL_SLASH)
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{
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if (strncmp(argv[i + 1], "/", 1) == 0)
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value_present = 0;
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}
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if ((options[j].Flags & COMMAND_LINE_VALUE_REQUIRED) ||
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(options[j].Flags & COMMAND_LINE_VALUE_OPTIONAL))
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argument = TRUE;
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else
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argument = FALSE;
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if (value_present && argument)
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{
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i++;
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value = argv[i];
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}
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else if (!value_present && (options[j].Flags & COMMAND_LINE_VALUE_OPTIONAL))
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{
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value = NULL;
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}
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else if (!value_present && argument)
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return COMMAND_LINE_ERROR;
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}
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if (!(flags & COMMAND_LINE_SEPARATOR_SPACE))
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{
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if (value && (options[j].Flags & COMMAND_LINE_VALUE_FLAG))
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return COMMAND_LINE_ERROR_UNEXPECTED_VALUE;
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}
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else
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{
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if (value && (options[j].Flags & COMMAND_LINE_VALUE_FLAG))
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{
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i--;
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value = NULL;
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}
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}
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if (!value && (options[j].Flags & COMMAND_LINE_VALUE_REQUIRED))
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{
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status = COMMAND_LINE_ERROR_MISSING_VALUE;
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return status;
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}
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options[j].Flags |= COMMAND_LINE_ARGUMENT_PRESENT;
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if (value)
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{
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if (options[j].Flags & (COMMAND_LINE_VALUE_FLAG | COMMAND_LINE_VALUE_BOOL))
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return COMMAND_LINE_ERROR_UNEXPECTED_VALUE;
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options[j].Value = value;
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options[j].Flags |= COMMAND_LINE_VALUE_PRESENT;
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}
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else
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{
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if (options[j].Flags & COMMAND_LINE_VALUE_FLAG)
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{
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options[j].Value = (LPSTR) 1;
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options[j].Flags |= COMMAND_LINE_VALUE_PRESENT;
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}
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else if (options[j].Flags & COMMAND_LINE_VALUE_BOOL)
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{
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if (flags & COMMAND_LINE_SIGIL_ENABLE_DISABLE)
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{
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if (toggle == -1)
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options[j].Value = BoolValueTrue;
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else if (!toggle)
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options[j].Value = BoolValueFalse;
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else
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options[j].Value = BoolValueTrue;
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}
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else
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{
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if (sigil[0] == '+')
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options[j].Value = BoolValueTrue;
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else if (sigil[0] == '-')
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options[j].Value = BoolValueFalse;
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else
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options[j].Value = BoolValueTrue;
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}
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options[j].Flags |= COMMAND_LINE_VALUE_PRESENT;
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}
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}
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if (postFilter)
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{
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count = postFilter(context, &options[j]);
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if (count < 0)
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{
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status = COMMAND_LINE_ERROR;
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return status;
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}
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}
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if (options[j].Flags & COMMAND_LINE_PRINT)
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return COMMAND_LINE_STATUS_PRINT;
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else if (options[j].Flags & COMMAND_LINE_PRINT_HELP)
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return COMMAND_LINE_STATUS_PRINT_HELP;
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else if (options[j].Flags & COMMAND_LINE_PRINT_VERSION)
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return COMMAND_LINE_STATUS_PRINT_VERSION;
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else if (options[j].Flags & COMMAND_LINE_PRINT_BUILDCONFIG)
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return COMMAND_LINE_STATUS_PRINT_BUILDCONFIG;
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}
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if (!found && (flags & COMMAND_LINE_IGN_UNKNOWN_KEYWORD) == 0)
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return COMMAND_LINE_ERROR_NO_KEYWORD;
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}
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}
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return status;
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}
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int CommandLineParseArgumentsW(int argc, LPWSTR* argv, COMMAND_LINE_ARGUMENT_W* options,
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DWORD flags,
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void* context, COMMAND_LINE_PRE_FILTER_FN_W preFilter, COMMAND_LINE_POST_FILTER_FN_W postFilter)
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{
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return 0;
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}
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int CommandLineClearArgumentsA(COMMAND_LINE_ARGUMENT_A* options)
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{
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size_t i;
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for (i = 0; options[i].Name != NULL; i++)
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{
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options[i].Flags &= COMMAND_LINE_INPUT_FLAG_MASK;
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options[i].Value = NULL;
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}
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return 0;
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}
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int CommandLineClearArgumentsW(COMMAND_LINE_ARGUMENT_W* options)
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{
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int i;
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for (i = 0; options[i].Name != NULL; i++)
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{
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options[i].Flags &= COMMAND_LINE_INPUT_FLAG_MASK;
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options[i].Value = NULL;
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}
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return 0;
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}
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COMMAND_LINE_ARGUMENT_A* CommandLineFindArgumentA(COMMAND_LINE_ARGUMENT_A* options, LPCSTR Name)
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{
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int i;
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for (i = 0; options[i].Name != NULL; i++)
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{
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if (strcmp(options[i].Name, Name) == 0)
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return &options[i];
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if (options[i].Alias != NULL)
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{
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if (strcmp(options[i].Alias, Name) == 0)
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return &options[i];
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}
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}
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return NULL;
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}
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COMMAND_LINE_ARGUMENT_W* CommandLineFindArgumentW(COMMAND_LINE_ARGUMENT_W* options, LPCWSTR Name)
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{
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int i;
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for (i = 0; options[i].Name != NULL; i++)
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{
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if (_wcscmp(options[i].Name, Name) == 0)
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return &options[i];
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if (options[i].Alias != NULL)
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{
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if (_wcscmp(options[i].Alias, Name) == 0)
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return &options[i];
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}
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}
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return NULL;
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}
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COMMAND_LINE_ARGUMENT_A* CommandLineFindNextArgumentA(COMMAND_LINE_ARGUMENT_A* argument)
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{
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COMMAND_LINE_ARGUMENT_A* nextArgument;
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if (!argument || !argument->Name)
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return NULL;
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nextArgument = &argument[1];
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if (nextArgument->Name == NULL)
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return NULL;
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return nextArgument;
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}
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