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#include <windows.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <vector>
static HANDLE getConin() {
HANDLE conin = GetStdHandle(STD_INPUT_HANDLE);
if (conin == INVALID_HANDLE_VALUE) {
fprintf(stderr, "error: cannot get stdin\n");
exit(1);
}
return conin;
}
static DWORD getConsoleMode() {
DWORD mode = 0;
if (!GetConsoleMode(getConin(), &mode)) {
fprintf(stderr, "error: GetConsoleMode failed (is stdin a console?)\n");
exit(1);
}
return mode;
}
static void setConsoleMode(DWORD mode) {
if (!SetConsoleMode(getConin(), mode)) {
fprintf(stderr, "error: SetConsoleMode failed (is stdin a console?)\n");
exit(1);
}
}
static long parseInt(const std::string &s) {
errno = 0;
char *endptr = nullptr;
long result = strtol(s.c_str(), &endptr, 0);
if (errno != 0 || !endptr || *endptr != '\0') {
fprintf(stderr, "error: could not parse integral argument '%s'\n", s.c_str());
exit(1);
}
return result;
}
static void usage() {
printf("Usage: ConinMode [verb] [options]\n");
printf("Verbs:\n");
printf(" [info] Dumps info about mode flags.\n");
printf(" get Prints the mode DWORD.\n");
printf(" set VALUE Sets the mode to VALUE, which can be decimal, hex, or octal.\n");
printf(" set VALUE MASK\n");
printf(" Same as `set VALUE`, but only alters the bits in MASK.\n");
exit(1);
}
struct {
const char *name;
DWORD value;
} kInputFlags[] = {
"ENABLE_PROCESSED_INPUT", ENABLE_PROCESSED_INPUT, // 0x0001
"ENABLE_LINE_INPUT", ENABLE_LINE_INPUT, // 0x0002
"ENABLE_ECHO_INPUT", ENABLE_ECHO_INPUT, // 0x0004
"ENABLE_WINDOW_INPUT", ENABLE_WINDOW_INPUT, // 0x0008
"ENABLE_MOUSE_INPUT", ENABLE_MOUSE_INPUT, // 0x0010
"ENABLE_INSERT_MODE", ENABLE_INSERT_MODE, // 0x0020
"ENABLE_QUICK_EDIT_MODE", ENABLE_QUICK_EDIT_MODE, // 0x0040
"ENABLE_EXTENDED_FLAGS", ENABLE_EXTENDED_FLAGS, // 0x0080
"ENABLE_VIRTUAL_TERMINAL_INPUT", 0x0200/*ENABLE_VIRTUAL_TERMINAL_INPUT*/, // 0x0200
};
int main(int argc, char *argv[]) {
std::vector<std::string> args;
for (size_t i = 1; i < argc; ++i) {
args.push_back(argv[i]);
}
if (args.empty() || args.size() == 1 && args[0] == "info") {
DWORD mode = getConsoleMode();
printf("mode: 0x%lx\n", mode);
for (const auto &flag : kInputFlags) {
printf("%-29s 0x%04lx %s\n", flag.name, flag.value, flag.value & mode ? "ON" : "off");
mode &= ~flag.value;
}
for (int i = 0; i < 32; ++i) {
if (mode & (1u << i)) {
printf("Unrecognized flag: %04x\n", (1u << i));
}
}
return 0;
}
const auto verb = args[0];
if (verb == "set") {
if (args.size() == 2) {
const DWORD newMode = parseInt(args[1]);
setConsoleMode(newMode);
} else if (args.size() == 3) {
const DWORD mode = parseInt(args[1]);
const DWORD mask = parseInt(args[2]);
const int newMode = (getConsoleMode() & ~mask) | (mode & mask);
setConsoleMode(newMode);
} else {
usage();
}
} else if (verb == "get") {
if (args.size() != 1) {
usage();
}
printf("0x%lx\n", getConsoleMode());
} else {
usage();
}
return 0;
}
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