From a6bec2df944d344f1e38e4be5ea4a3dcd9819158 Mon Sep 17 00:00:00 2001
From: Kimplul <kimi.h.kuparinen@gmail.com>
Date: Wed, 22 Jul 2026 22:40:37 +0300
Subject: write simple kv-parser for headers

---
 src/client.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 46 insertions(+), 10 deletions(-)

(limited to 'src/client.c')

diff --git a/src/client.c b/src/client.c
index 5b87c37..45a3c39 100644
--- a/src/client.c
+++ b/src/client.c
@@ -1,7 +1,10 @@
 #include <err.h>
 #include <string.h>
+#include <errno.h>
 #include <stdio.h>
+#include <fcntl.h>
 #include <stdlib.h>
+#include <poll.h>
 #include <unistd.h>
 #include <netinet/in.h>
 #include <sys/socket.h>
@@ -44,29 +47,62 @@ int main()
 		return -1;
 	}
 
-	int c;
-	while ((c = fgetc(stdin)) != EOF) {
-		char cb = c;
-		int ret = write(tcp_sock, &cb, 1);
-		if (ret == -1) {
-			err(EXIT_FAILURE, "failed writing to socket");
+	ret = fcntl(tcp_sock, F_SETFL, O_NONBLOCK);
+	if (ret == -1) {
+		close(tcp_sock);
+		return ret;
+	}
+
+	struct pollfd polls[2] = {{
+			.fd     = STDIN_FILENO,
+			.events = POLLIN
+		}, {
+			.fd     = tcp_sock,
+			.events = POLLIN
 		}
+	};
 
-		if (cb == '\n') {
-			char buf[4096];
-			ret = read(tcp_sock, buf, 4096);
+	while (poll(polls, 2, -1)) {
+		if (polls[0].revents) {
+			char cb = 'a';
+
+			int ret = read(STDIN_FILENO, &cb, 1);
 			if (ret == -1) {
-				printf("Error\n");
+				err(EXIT_FAILURE, "failed reading from stdio");
+			}
+
+			if (ret == 0) {
 				break;
 			}
 
+			ret = write(tcp_sock, &cb, 1);
+			if (ret == -1) {
+				err(EXIT_FAILURE, "failed writing to socket");
+			}
+		}
+
+		if (polls[1].revents) {
+			if (polls[1].revents & POLLHUP) {
+				printf("Closed socket\n");
+				break;
+			}
+
+			char buf[4096];
+			int ret = read(tcp_sock, buf, 4096 - 1);
+			if (ret == -1 && errno != EWOULDBLOCK) {
+				err(EXIT_FAILURE, "failed reading from socket");
+			}
+
 			if (ret == 0) {
 				printf("Closed socket\n");
 				break;
 			}
+
+			buf[ret] = '\0';
 			printf("%s\n", buf);
 		}
 	}
 
+
 	close(tcp_sock);
 }
-- 
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