Display incoming UTF-8 natively, convert only outgoing to ISO-8859-1

- Stop converting incoming text to ISO-8859-1 for display
- Terminal is UTF-8, so pass through directly (åäö, Cyrillic, etc.)
- Keep ISO-8859-1 conversion only for outgoing messages
- Add irc.log to .gitignore

.gitignore

@@ -1,2 +1,4 @@
 *.o
 irc
+irc.log
+chartest

README.md

@@ -14,6 +14,7 @@ A lightweight terminal IRC client written in C with automatic charset conversion
 - **SIGWINCH** handling (terminal resize)
 - **Ident** — works with system identd on port 113
 - **Real name** from passwd GECOS field
+- **Charset logger** — logs raw incoming bytes with hex dump and detected encoding to `irc.log`
 
 ## Building
 
@@ -41,6 +42,8 @@ Port defaults to 6667.
 | Ctrl-U | Kill to beginning (yank buffer) |
 | Ctrl-K | Kill to end (yank buffer) |
 | Ctrl-Y | Yank (paste) |
+| Ctrl-P | Page up (scroll back in history) |
+| Ctrl-N | Page down (scroll forward) |
 | Ctrl-D | Quit (EOF) |
 | Ctrl-C | Quit prompt (Y/N, default N) |
 
@@ -53,6 +56,7 @@ Port defaults to 6667.
 | `/msg <target> <text>` | Send private message |
 | `/nick <newnick>` | Change nickname |
 | `/mode <target> <modes>` | Set mode |
+| `/names [#channel]` | List users in channel |
 | `/whois <nick>` | WHOIS query |
 | `/wii <nick>` | Extended WHOIS (queries remote server) |
 | `/quit [reason]` | Quit (default: "See you later") |

chartest.c

@@ -1,32 +0,0 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <termios.h>
-
-int main(void)
-{
-	struct termios orig, raw;
-	tcgetattr(STDIN_FILENO, &orig);
-	raw = orig;
-	raw.c_lflag &= ~(ICANON | ECHO);
-	raw.c_cc[VMIN] = 1;
-	tcsetattr(STDIN_FILENO, TCSANOW, &raw);
-
-	printf("Press keys (Ctrl-D to quit):\n");
-	for (;;) {
-		unsigned char c;
-		if (read(STDIN_FILENO, &c, 1) <= 0 || c == 0x04)
-			break;
-		printf("  dec=%3d  hex=0x%02X  oct=%03o", c, c, c);
-		if (c >= 32 && c < 127)
-			printf("  char='%c'", c);
-		else if (c >= 0xC0)
-			printf("  (UTF-8 lead byte, %d-byte seq)",
-			       c < 0xE0 ? 2 : c < 0xF0 ? 3 : 4);
-		else if ((c & 0xC0) == 0x80)
-			printf("  (UTF-8 continuation)");
-		printf("\n");
-	}
-
-	tcsetattr(STDIN_FILENO, TCSANOW, &orig);
-	return 0;
-}

main.c

@@ -441,10 +441,9 @@ static void handle_line(char *line)
 	size_t rawlen = strlen(line);
 	log_raw(line, rawlen);
 
-	char converted[BUF_SIZE];
-
-	to_iso8859_1((unsigned char *)line, strlen(line),
-	             converted, sizeof(converted));
+	/* Incoming text is displayed as-is (terminal is UTF-8).
+	 * No conversion needed for display. */
+	char *converted = line;
 
 	if (strncmp(converted, "PING ", 5) == 0) {
 		irc_send_raw("PONG %s", converted + 5);