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1 //===-- Args.cpp ----------------------------------------------------------===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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9 #include "lldb/Utility/Args.h"
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10 #include "lldb/Utility/ConstString.h"
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11 #include "lldb/Utility/FileSpec.h"
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12 #include "lldb/Utility/Stream.h"
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13 #include "lldb/Utility/StringList.h"
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14 #include "llvm/ADT/StringSwitch.h"
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15
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16 using namespace lldb;
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17 using namespace lldb_private;
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18
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19 // A helper function for argument parsing.
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20 // Parses the initial part of the first argument using normal double quote
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21 // rules: backslash escapes the double quote and itself. The parsed string is
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22 // appended to the second argument. The function returns the unparsed portion
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23 // of the string, starting at the closing quote.
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24 static llvm::StringRef ParseDoubleQuotes(llvm::StringRef quoted,
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25 std::string &result) {
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26 // Inside double quotes, '\' and '"' are special.
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27 static const char *k_escapable_characters = "\"\\";
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28 while (true) {
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29 // Skip over over regular characters and append them.
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30 size_t regular = quoted.find_first_of(k_escapable_characters);
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31 result += quoted.substr(0, regular);
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32 quoted = quoted.substr(regular);
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33
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34 // If we have reached the end of string or the closing quote, we're done.
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35 if (quoted.empty() || quoted.front() == '"')
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36 break;
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37
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38 // We have found a backslash.
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39 quoted = quoted.drop_front();
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40
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41 if (quoted.empty()) {
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42 // A lone backslash at the end of string, let's just append it.
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43 result += '\\';
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44 break;
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45 }
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46
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47 // If the character after the backslash is not a whitelisted escapable
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48 // character, we leave the character sequence untouched.
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49 if (strchr(k_escapable_characters, quoted.front()) == nullptr)
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50 result += '\\';
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51
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52 result += quoted.front();
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53 quoted = quoted.drop_front();
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54 }
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55
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56 return quoted;
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57 }
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58
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59 static size_t ArgvToArgc(const char **argv) {
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60 if (!argv)
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61 return 0;
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62 size_t count = 0;
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63 while (*argv++)
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64 ++count;
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65 return count;
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66 }
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67
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68 // Trims all whitespace that can separate command line arguments from the left
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69 // side of the string.
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70 static llvm::StringRef ltrimForArgs(llvm::StringRef str) {
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71 static const char *k_space_separators = " \t";
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72 return str.ltrim(k_space_separators);
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73 }
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74
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75 // A helper function for SetCommandString. Parses a single argument from the
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76 // command string, processing quotes and backslashes in a shell-like manner.
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77 // The function returns a tuple consisting of the parsed argument, the quote
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78 // char used, and the unparsed portion of the string starting at the first
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79 // unqouted, unescaped whitespace character.
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80 static std::tuple<std::string, char, llvm::StringRef>
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81 ParseSingleArgument(llvm::StringRef command) {
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82 // Argument can be split into multiple discontiguous pieces, for example:
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83 // "Hello ""World"
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84 // this would result in a single argument "Hello World" (without the quotes)
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85 // since the quotes would be removed and there is not space between the
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86 // strings.
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87 std::string arg;
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88
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89 // Since we can have multiple quotes that form a single command in a command
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90 // like: "Hello "world'!' (which will make a single argument "Hello world!")
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91 // we remember the first quote character we encounter and use that for the
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92 // quote character.
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93 char first_quote_char = '\0';
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94
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95 bool arg_complete = false;
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96 do {
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97 // Skip over over regular characters and append them.
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98 size_t regular = command.find_first_of(" \t\r\"'`\\");
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99 arg += command.substr(0, regular);
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100 command = command.substr(regular);
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101
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102 if (command.empty())
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103 break;
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104
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105 char special = command.front();
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106 command = command.drop_front();
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107 switch (special) {
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108 case '\\':
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109 if (command.empty()) {
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110 arg += '\\';
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111 break;
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112 }
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113
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114 // If the character after the backslash is not a whitelisted escapable
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115 // character, we leave the character sequence untouched.
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116 if (strchr(" \t\\'\"`", command.front()) == nullptr)
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117 arg += '\\';
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118
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119 arg += command.front();
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120 command = command.drop_front();
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121
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122 break;
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123
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124 case ' ':
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125 case '\t':
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126 case '\r':
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127 // We are not inside any quotes, we just found a space after an argument.
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128 // We are done.
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129 arg_complete = true;
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130 break;
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131
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132 case '"':
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133 case '\'':
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134 case '`':
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135 // We found the start of a quote scope.
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136 if (first_quote_char == '\0')
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137 first_quote_char = special;
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138
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139 if (special == '"')
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140 command = ParseDoubleQuotes(command, arg);
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141 else {
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142 // For single quotes, we simply skip ahead to the matching quote
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143 // character (or the end of the string).
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144 size_t quoted = command.find(special);
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145 arg += command.substr(0, quoted);
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146 command = command.substr(quoted);
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147 }
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148
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149 // If we found a closing quote, skip it.
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150 if (!command.empty())
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151 command = command.drop_front();
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152
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153 break;
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154 }
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155 } while (!arg_complete);
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156
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157 return std::make_tuple(arg, first_quote_char, command);
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158 }
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159
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160 Args::ArgEntry::ArgEntry(llvm::StringRef str, char quote) : quote(quote) {
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161 size_t size = str.size();
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162 ptr.reset(new char[size + 1]);
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163
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164 ::memcpy(data(), str.data() ? str.data() : "", size);
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165 ptr[size] = 0;
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166 }
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167
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168 // Args constructor
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169 Args::Args(llvm::StringRef command) { SetCommandString(command); }
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170
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171 Args::Args(const Args &rhs) { *this = rhs; }
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172
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173 Args::Args(const StringList &list) : Args() {
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174 for (const std::string &arg : list)
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175 AppendArgument(arg);
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176 }
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177
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178 Args &Args::operator=(const Args &rhs) {
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179 Clear();
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180
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181 m_argv.clear();
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182 m_entries.clear();
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183 for (auto &entry : rhs.m_entries) {
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184 m_entries.emplace_back(entry.ref(), entry.quote);
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185 m_argv.push_back(m_entries.back().data());
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186 }
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187 m_argv.push_back(nullptr);
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188 return *this;
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189 }
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190
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191 // Destructor
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192 Args::~Args() {}
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193
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194 void Args::Dump(Stream &s, const char *label_name) const {
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195 if (!label_name)
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196 return;
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197
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198 int i = 0;
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199 for (auto &entry : m_entries) {
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200 s.Indent();
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201 s.Format("{0}[{1}]=\"{2}\"\n", label_name, i++, entry.ref());
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202 }
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203 s.Format("{0}[{1}]=NULL\n", label_name, i);
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204 s.EOL();
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205 }
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206
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207 bool Args::GetCommandString(std::string &command) const {
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208 command.clear();
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209
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210 for (size_t i = 0; i < m_entries.size(); ++i) {
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211 if (i > 0)
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212 command += ' ';
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213 command += m_entries[i].ref();
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214 }
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215
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216 return !m_entries.empty();
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217 }
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218
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219 bool Args::GetQuotedCommandString(std::string &command) const {
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220 command.clear();
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221
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222 for (size_t i = 0; i < m_entries.size(); ++i) {
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223 if (i > 0)
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224 command += ' ';
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225
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226 if (m_entries[i].quote) {
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227 command += m_entries[i].quote;
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228 command += m_entries[i].ref();
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229 command += m_entries[i].quote;
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230 } else {
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231 command += m_entries[i].ref();
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232 }
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233 }
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234
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235 return !m_entries.empty();
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236 }
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237
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238 void Args::SetCommandString(llvm::StringRef command) {
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239 Clear();
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240 m_argv.clear();
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241
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242 command = ltrimForArgs(command);
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243 std::string arg;
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244 char quote;
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245 while (!command.empty()) {
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246 std::tie(arg, quote, command) = ParseSingleArgument(command);
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247 m_entries.emplace_back(arg, quote);
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248 m_argv.push_back(m_entries.back().data());
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249 command = ltrimForArgs(command);
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250 }
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251 m_argv.push_back(nullptr);
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252 }
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253
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254 size_t Args::GetArgumentCount() const { return m_entries.size(); }
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255
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256 const char *Args::GetArgumentAtIndex(size_t idx) const {
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257 if (idx < m_argv.size())
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258 return m_argv[idx];
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259 return nullptr;
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260 }
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261
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262 char **Args::GetArgumentVector() {
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263 assert(!m_argv.empty());
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264 // TODO: functions like execve and posix_spawnp exhibit undefined behavior
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265 // when argv or envp is null. So the code below is actually wrong. However,
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266 // other code in LLDB depends on it being null. The code has been acting
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267 // this way for some time, so it makes sense to leave it this way until
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268 // someone has the time to come along and fix it.
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269 return (m_argv.size() > 1) ? m_argv.data() : nullptr;
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270 }
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271
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272 const char **Args::GetConstArgumentVector() const {
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273 assert(!m_argv.empty());
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274 return (m_argv.size() > 1) ? const_cast<const char **>(m_argv.data())
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275 : nullptr;
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276 }
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277
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278 void Args::Shift() {
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279 // Don't pop the last NULL terminator from the argv array
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280 if (m_entries.empty())
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281 return;
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282 m_argv.erase(m_argv.begin());
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283 m_entries.erase(m_entries.begin());
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284 }
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285
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286 void Args::Unshift(llvm::StringRef arg_str, char quote_char) {
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287 InsertArgumentAtIndex(0, arg_str, quote_char);
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288 }
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289
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290 void Args::AppendArguments(const Args &rhs) {
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291 assert(m_argv.size() == m_entries.size() + 1);
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292 assert(m_argv.back() == nullptr);
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293 m_argv.pop_back();
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294 for (auto &entry : rhs.m_entries) {
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295 m_entries.emplace_back(entry.ref(), entry.quote);
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296 m_argv.push_back(m_entries.back().data());
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297 }
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298 m_argv.push_back(nullptr);
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299 }
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300
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301 void Args::AppendArguments(const char **argv) {
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302 size_t argc = ArgvToArgc(argv);
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303
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304 assert(m_argv.size() == m_entries.size() + 1);
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305 assert(m_argv.back() == nullptr);
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306 m_argv.pop_back();
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307 for (auto arg : llvm::makeArrayRef(argv, argc)) {
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308 m_entries.emplace_back(arg, '\0');
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309 m_argv.push_back(m_entries.back().data());
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310 }
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311
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312 m_argv.push_back(nullptr);
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313 }
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314
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315 void Args::AppendArgument(llvm::StringRef arg_str, char quote_char) {
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316 InsertArgumentAtIndex(GetArgumentCount(), arg_str, quote_char);
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317 }
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318
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319 void Args::InsertArgumentAtIndex(size_t idx, llvm::StringRef arg_str,
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320 char quote_char) {
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321 assert(m_argv.size() == m_entries.size() + 1);
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322 assert(m_argv.back() == nullptr);
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323
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324 if (idx > m_entries.size())
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325 return;
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326 m_entries.emplace(m_entries.begin() + idx, arg_str, quote_char);
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327 m_argv.insert(m_argv.begin() + idx, m_entries[idx].data());
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328 }
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329
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330 void Args::ReplaceArgumentAtIndex(size_t idx, llvm::StringRef arg_str,
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331 char quote_char) {
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332 assert(m_argv.size() == m_entries.size() + 1);
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333 assert(m_argv.back() == nullptr);
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334
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335 if (idx >= m_entries.size())
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336 return;
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337
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338 m_entries[idx] = ArgEntry(arg_str, quote_char);
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339 m_argv[idx] = m_entries[idx].data();
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340 }
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341
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342 void Args::DeleteArgumentAtIndex(size_t idx) {
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343 if (idx >= m_entries.size())
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344 return;
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345
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346 m_argv.erase(m_argv.begin() + idx);
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347 m_entries.erase(m_entries.begin() + idx);
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348 }
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349
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350 void Args::SetArguments(size_t argc, const char **argv) {
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351 Clear();
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352
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353 auto args = llvm::makeArrayRef(argv, argc);
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354 m_entries.resize(argc);
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355 m_argv.resize(argc + 1);
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356 for (size_t i = 0; i < args.size(); ++i) {
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357 char quote =
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358 ((args[i][0] == '\'') || (args[i][0] == '"') || (args[i][0] == '`'))
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359 ? args[i][0]
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360 : '\0';
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361
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362 m_entries[i] = ArgEntry(args[i], quote);
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363 m_argv[i] = m_entries[i].data();
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364 }
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365 }
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366
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367 void Args::SetArguments(const char **argv) {
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368 SetArguments(ArgvToArgc(argv), argv);
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369 }
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370
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371 void Args::Clear() {
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372 m_entries.clear();
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373 m_argv.clear();
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374 m_argv.push_back(nullptr);
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375 }
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376
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377 const char *Args::GetShellSafeArgument(const FileSpec &shell,
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378 const char *unsafe_arg,
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379 std::string &safe_arg) {
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380 struct ShellDescriptor {
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381 ConstString m_basename;
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382 const char *m_escapables;
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383 };
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384
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385 static ShellDescriptor g_Shells[] = {{ConstString("bash"), " '\"<>()&"},
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386 {ConstString("tcsh"), " '\"<>()&$"},
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387 {ConstString("sh"), " '\"<>()&"}};
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388
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389 // safe minimal set
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390 const char *escapables = " '\"";
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391
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392 if (auto basename = shell.GetFilename()) {
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393 for (const auto &Shell : g_Shells) {
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394 if (Shell.m_basename == basename) {
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395 escapables = Shell.m_escapables;
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396 break;
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397 }
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398 }
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399 }
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400
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401 safe_arg.assign(unsafe_arg);
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402 size_t prev_pos = 0;
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403 while (prev_pos < safe_arg.size()) {
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404 // Escape spaces and quotes
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405 size_t pos = safe_arg.find_first_of(escapables, prev_pos);
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406 if (pos != std::string::npos) {
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407 safe_arg.insert(pos, 1, '\\');
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408 prev_pos = pos + 2;
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409 } else
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410 break;
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411 }
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412 return safe_arg.c_str();
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413 }
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414
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415 lldb::Encoding Args::StringToEncoding(llvm::StringRef s,
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416 lldb::Encoding fail_value) {
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417 return llvm::StringSwitch<lldb::Encoding>(s)
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|
|
418 .Case("uint", eEncodingUint)
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|
|
419 .Case("sint", eEncodingSint)
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|
|
420 .Case("ieee754", eEncodingIEEE754)
|
|
|
421 .Case("vector", eEncodingVector)
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|
|
422 .Default(fail_value);
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|
|
423 }
|
|
|
424
|
|
|
425 uint32_t Args::StringToGenericRegister(llvm::StringRef s) {
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|
426 if (s.empty())
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427 return LLDB_INVALID_REGNUM;
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428 uint32_t result = llvm::StringSwitch<uint32_t>(s)
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|
|
429 .Case("pc", LLDB_REGNUM_GENERIC_PC)
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|
430 .Case("sp", LLDB_REGNUM_GENERIC_SP)
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|
|
431 .Case("fp", LLDB_REGNUM_GENERIC_FP)
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|
432 .Cases("ra", "lr", LLDB_REGNUM_GENERIC_RA)
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|
433 .Case("flags", LLDB_REGNUM_GENERIC_FLAGS)
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|
434 .Case("arg1", LLDB_REGNUM_GENERIC_ARG1)
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|
|
435 .Case("arg2", LLDB_REGNUM_GENERIC_ARG2)
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|
|
436 .Case("arg3", LLDB_REGNUM_GENERIC_ARG3)
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|
|
437 .Case("arg4", LLDB_REGNUM_GENERIC_ARG4)
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|
|
438 .Case("arg5", LLDB_REGNUM_GENERIC_ARG5)
|
|
|
439 .Case("arg6", LLDB_REGNUM_GENERIC_ARG6)
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|
|
440 .Case("arg7", LLDB_REGNUM_GENERIC_ARG7)
|
|
|
441 .Case("arg8", LLDB_REGNUM_GENERIC_ARG8)
|
|
|
442 .Default(LLDB_INVALID_REGNUM);
|
|
|
443 return result;
|
|
|
444 }
|
|
|
445
|
|
|
446 void Args::EncodeEscapeSequences(const char *src, std::string &dst) {
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|
|
447 dst.clear();
|
|
|
448 if (src) {
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|
|
449 for (const char *p = src; *p != '\0'; ++p) {
|
|
|
450 size_t non_special_chars = ::strcspn(p, "\\");
|
|
|
451 if (non_special_chars > 0) {
|
|
|
452 dst.append(p, non_special_chars);
|
|
|
453 p += non_special_chars;
|
|
|
454 if (*p == '\0')
|
|
|
455 break;
|
|
|
456 }
|
|
|
457
|
|
|
458 if (*p == '\\') {
|
|
|
459 ++p; // skip the slash
|
|
|
460 switch (*p) {
|
|
|
461 case 'a':
|
|
|
462 dst.append(1, '\a');
|
|
|
463 break;
|
|
|
464 case 'b':
|
|
|
465 dst.append(1, '\b');
|
|
|
466 break;
|
|
|
467 case 'f':
|
|
|
468 dst.append(1, '\f');
|
|
|
469 break;
|
|
|
470 case 'n':
|
|
|
471 dst.append(1, '\n');
|
|
|
472 break;
|
|
|
473 case 'r':
|
|
|
474 dst.append(1, '\r');
|
|
|
475 break;
|
|
|
476 case 't':
|
|
|
477 dst.append(1, '\t');
|
|
|
478 break;
|
|
|
479 case 'v':
|
|
|
480 dst.append(1, '\v');
|
|
|
481 break;
|
|
|
482 case '\\':
|
|
|
483 dst.append(1, '\\');
|
|
|
484 break;
|
|
|
485 case '\'':
|
|
|
486 dst.append(1, '\'');
|
|
|
487 break;
|
|
|
488 case '"':
|
|
|
489 dst.append(1, '"');
|
|
|
490 break;
|
|
|
491 case '0':
|
|
|
492 // 1 to 3 octal chars
|
|
|
493 {
|
|
|
494 // Make a string that can hold onto the initial zero char, up to 3
|
|
|
495 // octal digits, and a terminating NULL.
|
|
|
496 char oct_str[5] = {'\0', '\0', '\0', '\0', '\0'};
|
|
|
497
|
|
|
498 int i;
|
|
|
499 for (i = 0; (p[i] >= '0' && p[i] <= '7') && i < 4; ++i)
|
|
|
500 oct_str[i] = p[i];
|
|
|
501
|
|
|
502 // We don't want to consume the last octal character since the main
|
|
|
503 // for loop will do this for us, so we advance p by one less than i
|
|
|
504 // (even if i is zero)
|
|
|
505 p += i - 1;
|
|
|
506 unsigned long octal_value = ::strtoul(oct_str, nullptr, 8);
|
|
|
507 if (octal_value <= UINT8_MAX) {
|
|
|
508 dst.append(1, static_cast<char>(octal_value));
|
|
|
509 }
|
|
|
510 }
|
|
|
511 break;
|
|
|
512
|
|
|
513 case 'x':
|
|
|
514 // hex number in the format
|
|
|
515 if (isxdigit(p[1])) {
|
|
|
516 ++p; // Skip the 'x'
|
|
|
517
|
|
|
518 // Make a string that can hold onto two hex chars plus a
|
|
|
519 // NULL terminator
|
|
|
520 char hex_str[3] = {*p, '\0', '\0'};
|
|
|
521 if (isxdigit(p[1])) {
|
|
|
522 ++p; // Skip the first of the two hex chars
|
|
|
523 hex_str[1] = *p;
|
|
|
524 }
|
|
|
525
|
|
|
526 unsigned long hex_value = strtoul(hex_str, nullptr, 16);
|
|
|
527 if (hex_value <= UINT8_MAX)
|
|
|
528 dst.append(1, static_cast<char>(hex_value));
|
|
|
529 } else {
|
|
|
530 dst.append(1, 'x');
|
|
|
531 }
|
|
|
532 break;
|
|
|
533
|
|
|
534 default:
|
|
|
535 // Just desensitize any other character by just printing what came
|
|
|
536 // after the '\'
|
|
|
537 dst.append(1, *p);
|
|
|
538 break;
|
|
|
539 }
|
|
|
540 }
|
|
|
541 }
|
|
|
542 }
|
|
|
543 }
|
|
|
544
|
|
|
545 void Args::ExpandEscapedCharacters(const char *src, std::string &dst) {
|
|
|
546 dst.clear();
|
|
|
547 if (src) {
|
|
|
548 for (const char *p = src; *p != '\0'; ++p) {
|
|
|
549 if (isprint(*p))
|
|
|
550 dst.append(1, *p);
|
|
|
551 else {
|
|
|
552 switch (*p) {
|
|
|
553 case '\a':
|
|
|
554 dst.append("\\a");
|
|
|
555 break;
|
|
|
556 case '\b':
|
|
|
557 dst.append("\\b");
|
|
|
558 break;
|
|
|
559 case '\f':
|
|
|
560 dst.append("\\f");
|
|
|
561 break;
|
|
|
562 case '\n':
|
|
|
563 dst.append("\\n");
|
|
|
564 break;
|
|
|
565 case '\r':
|
|
|
566 dst.append("\\r");
|
|
|
567 break;
|
|
|
568 case '\t':
|
|
|
569 dst.append("\\t");
|
|
|
570 break;
|
|
|
571 case '\v':
|
|
|
572 dst.append("\\v");
|
|
|
573 break;
|
|
|
574 case '\'':
|
|
|
575 dst.append("\\'");
|
|
|
576 break;
|
|
|
577 case '"':
|
|
|
578 dst.append("\\\"");
|
|
|
579 break;
|
|
|
580 case '\\':
|
|
|
581 dst.append("\\\\");
|
|
|
582 break;
|
|
|
583 default: {
|
|
|
584 // Just encode as octal
|
|
|
585 dst.append("\\0");
|
|
|
586 char octal_str[32];
|
|
|
587 snprintf(octal_str, sizeof(octal_str), "%o", *p);
|
|
|
588 dst.append(octal_str);
|
|
|
589 } break;
|
|
|
590 }
|
|
|
591 }
|
|
|
592 }
|
|
|
593 }
|
|
|
594 }
|
|
|
595
|
|
|
596 std::string Args::EscapeLLDBCommandArgument(const std::string &arg,
|
|
|
597 char quote_char) {
|
|
|
598 const char *chars_to_escape = nullptr;
|
|
|
599 switch (quote_char) {
|
|
|
600 case '\0':
|
|
|
601 chars_to_escape = " \t\\'\"`";
|
|
|
602 break;
|
|
|
603 case '"':
|
|
|
604 chars_to_escape = "$\"`\\";
|
|
|
605 break;
|
|
|
606 case '`':
|
|
|
607 case '\'':
|
|
|
608 return arg;
|
|
|
609 default:
|
|
|
610 assert(false && "Unhandled quote character");
|
|
|
611 return arg;
|
|
|
612 }
|
|
|
613
|
|
|
614 std::string res;
|
|
|
615 res.reserve(arg.size());
|
|
|
616 for (char c : arg) {
|
|
|
617 if (::strchr(chars_to_escape, c))
|
|
|
618 res.push_back('\\');
|
|
|
619 res.push_back(c);
|
|
|
620 }
|
|
|
621 return res;
|
|
|
622 }
|
|
|
623
|
|
|
624 OptionsWithRaw::OptionsWithRaw(llvm::StringRef arg_string) {
|
|
|
625 SetFromString(arg_string);
|
|
|
626 }
|
|
|
627
|
|
|
628 void OptionsWithRaw::SetFromString(llvm::StringRef arg_string) {
|
|
|
629 const llvm::StringRef original_args = arg_string;
|
|
|
630
|
|
|
631 arg_string = ltrimForArgs(arg_string);
|
|
|
632 std::string arg;
|
|
|
633 char quote;
|
|
|
634
|
|
|
635 // If the string doesn't start with a dash, we just have no options and just
|
|
|
636 // a raw part.
|
|
|
637 if (!arg_string.startswith("-")) {
|
|
|
638 m_suffix = std::string(original_args);
|
|
|
639 return;
|
|
|
640 }
|
|
|
641
|
|
|
642 bool found_suffix = false;
|
|
|
643
|
|
|
644 while (!arg_string.empty()) {
|
|
|
645 // The length of the prefix before parsing.
|
|
|
646 std::size_t prev_prefix_length = original_args.size() - arg_string.size();
|
|
|
647
|
|
|
648 // Parse the next argument from the remaining string.
|
|
|
649 std::tie(arg, quote, arg_string) = ParseSingleArgument(arg_string);
|
|
|
650
|
|
|
651 // If we get an unquoted '--' argument, then we reached the suffix part
|
|
|
652 // of the command.
|
|
|
653 Args::ArgEntry entry(arg, quote);
|
|
|
654 if (!entry.IsQuoted() && arg == "--") {
|
|
|
655 // The remaining line is the raw suffix, and the line we parsed so far
|
|
|
656 // needs to be interpreted as arguments.
|
|
|
657 m_has_args = true;
|
|
|
658 m_suffix = std::string(arg_string);
|
|
|
659 found_suffix = true;
|
|
|
660
|
|
|
661 // The length of the prefix after parsing.
|
|
|
662 std::size_t prefix_length = original_args.size() - arg_string.size();
|
|
|
663
|
|
|
664 // Take the string we know contains all the arguments and actually parse
|
|
|
665 // it as proper arguments.
|
|
|
666 llvm::StringRef prefix = original_args.take_front(prev_prefix_length);
|
|
|
667 m_args = Args(prefix);
|
|
|
668 m_arg_string = prefix;
|
|
|
669
|
|
|
670 // We also record the part of the string that contains the arguments plus
|
|
|
671 // the delimiter.
|
|
|
672 m_arg_string_with_delimiter = original_args.take_front(prefix_length);
|
|
|
673
|
|
|
674 // As the rest of the string became the raw suffix, we are done here.
|
|
|
675 break;
|
|
|
676 }
|
|
|
677
|
|
|
678 arg_string = ltrimForArgs(arg_string);
|
|
|
679 }
|
|
|
680
|
|
|
681 // If we didn't find a suffix delimiter, the whole string is the raw suffix.
|
|
|
682 if (!found_suffix) {
|
|
|
683 found_suffix = true;
|
|
|
684 m_suffix = std::string(original_args);
|
|
|
685 }
|
|
|
686 }
|
|
173
|
687
|
|
|
688 void llvm::yaml::MappingTraits<Args::ArgEntry>::mapping(IO &io,
|
|
|
689 Args::ArgEntry &v) {
|
|
|
690 MappingNormalization<NormalizedArgEntry, Args::ArgEntry> keys(io, v);
|
|
|
691 io.mapRequired("value", keys->value);
|
|
|
692 io.mapRequired("quote", keys->quote);
|
|
|
693 }
|
|
|
694
|
|
|
695 void llvm::yaml::MappingTraits<Args>::mapping(IO &io, Args &v) {
|
|
|
696 io.mapRequired("entries", v.m_entries);
|
|
|
697
|
|
|
698 // Recompute m_argv vector.
|
|
|
699 v.m_argv.clear();
|
|
|
700 for (auto &entry : v.m_entries)
|
|
|
701 v.m_argv.push_back(entry.data());
|
|
|
702 v.m_argv.push_back(nullptr);
|
|
|
703 }
|
