edit readme, change defaults & remove C++20 requirement

Makefile

@@ -2,7 +2,7 @@ TARGETS           = passgen
 BINARYOUT_TARGETS = passgen.o
 
 CPPFLAGS += -I./include 
-CXXFLAGS += -std=c++20 -O2
+CXXFLAGS += -O2
 
 
 ifeq ($(OS),Windows_NT)

README.md

@@ -1,7 +1,22 @@
 # passgen
+passgen generate passphrases based on wordlists.
 Usage:
 ```
-passgen <wordlist_path> <word_count>
+Usage: passgen [options]
+
+Options:
+  -h, --help              Display this help message and exit
+  -s, --short             Use the short EFF wordlist
+  -l, --large             Use the large EFF wordlist (dfault)
+  --camelcase, -cc        Generate passwords in CamelCase format			
+  -p <path>, --path <path>
+                          Use a custom wordlist file located at <path>
+  -wc <count>, --wordcount <count>
+                          Amount of words to use for passphrase
+  --separator <seperator> Specify a character to use as a separator between words, default = `-`
+
+Description:
+  Generate passphrases based on wordlists.
 ```
 
 example output:

compile_commands.json

@@ -1,17 +0,0 @@
-[
-  {
-    "arguments": [
-      "/usr/bin/g++",
-      "-std=c++20",
-      "-O2",
-      "-I./include",
-      "-c",
-      "-o",
-      "passgen.o",
-      "passgen.cpp"
-    ],
-    "directory": "/home/mans/dev/passgen",
-    "file": "/home/mans/dev/passgen/passgen.cpp",
-    "output": "/home/mans/dev/passgen/passgen.o"
-  }
-]

passgen.cpp

@@ -1,6 +1,5 @@
 #include <cctype>
 #include <cstdlib>
-#include <format>
 #include <functional>
 #include <iostream>
 #include <fstream>
@@ -19,12 +18,11 @@ enum WordlistType { WORDLIST_EFF_LARGE, WORDLIST_EFF_SHORT, WORDLIST_CUSTOM };
 
 struct PassgenOptions {
 	bool help = false;
-	WordlistType wordlist_type = WORDLIST_EFF_LARGE;
+	WordlistType wordlist_type = WORDLIST_EFF_SHORT;
 	int wordcount = 5;
 	bool camelcase = false;
 	std::string seperator = "-";
 	std::optional<std::string> wordlist_path;
-	std::optional<std::string> outfile;
 };
 
 typedef std::function<void(PassgenOptions&)> NoArgHandle;
@@ -77,11 +75,11 @@ PassgenOptions parse_options(int argc, const char* argv[]) {
 				k->second(settings, {argv[i]});
 			} else {
 				throw std::runtime_error {"missing param after " + opt};
-				exit(1);
+				std::exit(1);
 			}
 		} else {
 			std::cerr << "unrecognized command-line option " << opt << std::endl;
-			exit(1);
+			std::exit(1);
 		}
 	}
 	return settings;
@@ -91,25 +89,20 @@ std::vector<std::string> getWordlist(PassgenOptions opts)
 {
 	std::vector<std::string> map;
 
-	if (opts.wordlist_type == WORDLIST_EFF_LARGE)
+	if (opts.wordlist_type != WORDLIST_CUSTOM)
 	{
 		std::stringstream ss;
-		ss.write(reinterpret_cast<const char*>(eff_large_wordlist_txt), eff_large_wordlist_txt_len);
+		if (WORDLIST_EFF_SHORT) {
+			ss.write(reinterpret_cast<const char*>(eff_short_wordlist_1_txt), eff_short_wordlist_1_txt_len);
+		} else {
+			ss.write(reinterpret_cast<const char*>(eff_large_wordlist_txt), eff_large_wordlist_txt_len);
+		}
 		std::string line;	
 		while (std::getline(ss, line)) {
 			map.push_back(line);
 		}
 	}
-	else if (opts.wordlist_type == WORDLIST_EFF_SHORT)
-	{
-		std::stringstream ss;
-		ss.write(reinterpret_cast<const char*>(eff_short_wordlist_1_txt), eff_short_wordlist_1_txt_len);
-		std::string line;	
-		while (std::getline(ss, line)) {
-			map.push_back(line);
-		}
-	}
-	else if (opts.wordlist_type == WORDLIST_CUSTOM && opts.wordlist_path.has_value())
+	else if (opts.wordlist_path.has_value())
 	{
 		std::string path = opts.wordlist_path.value();
 		std::ifstream file(path);
@@ -119,8 +112,10 @@ std::vector<std::string> getWordlist(PassgenOptions opts)
 				map.push_back(line);
 			}
 		} else {
-			std::cout << std::format("ERROR: failed to open '{}'\n", path);
+			std::cout << "ERROR: failed to open '" << path << "'" << std::endl;
 		}
+	} else {
+			std::cout << "ERROR: no wordlist specified" << std::endl;
 	}
 
 	return map;
@@ -135,13 +130,13 @@ Usage: passgen [options]
 
 Options:
   -h, --help              Display this help message and exit
-  -s, --short             Use the short EFF wordlist
-  -l, --large             Use the large EFF wordlist (dfault)
+  -s, --short             Use the short EFF wordlist (dfault)
+  -l, --large             Use the large EFF wordlist
   --camelcase, -cc        Generate passphrase in CamelCase format			
   -p <path>, --path <path>
                           Use a custom wordlist file located at <path>
   -wc <count>, --wordcount <count>
-                          Amount of words to use for passphrase
+                          Amount of words to use for passphrase, default = 5
   --separator <seperator> Specify a character to use as a separator between words, default = `-`
 
 Description: