From 9fbd8130d45c8218eaea28d13f7bf53de0bffa39 Mon Sep 17 00:00:00 2001
From: michael <michael>
Date: Sat, 1 Jul 2006 22:26:06 +0000
Subject: [PATCH 1/1] interpret server response

---
 http.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 51 insertions(+), 12 deletions(-)

diff --git a/http.c b/http.c
index ca756bd..eee7345 100644
--- a/http.c
+++ b/http.c
@@ -28,8 +28,8 @@ int open_http(char *url)
 	int fd;
 	struct sockaddr_in server;
 	static struct dvb_host *dvbhost = NULL;
-	char buffer[BUFFSIZE];
-	int i;
+	char c, buffer[BUFFSIZE], *pos;
+	int lines = 0;
 
 	if(!is_http(url))
 		return -1;
@@ -55,19 +55,58 @@ int open_http(char *url)
 
 	snprintf(buffer, BUFFSIZE-1, "GET /%s HTTP/1.0\n\n",dvbhost->location);
 	buffer[BUFFSIZE-1] = 0;
-	send(fd, buffer, strlen(buffer), 0);
-	i = 0;
-	while(i < 2) {
-		if (recv(fd, buffer, 1, 0) < 1) {
+	if (send(fd, buffer, strlen(buffer), 0) < 0) {
+		perror("send");
+		return -1;
+	}
+
+	pos = buffer;
+	while (1) {
+		if (recv(fd, &c, 1, 0) < 1) {
 			perror("recv");
 			exit(EXIT_FAILURE);
 		}
-		printf("%c",buffer[0]);
-		if (buffer[0] == 0x0a)
-			i++;
-		else
-			if (buffer[0] != 0x0d)
-				i = 0;
+
+		if (pos-buffer >= BUFFSIZE)
+			pos = buffer;
+
+		*(pos++) = c;
+
+		if (c == 0x0a) {
+			*(--pos) = 0;
+			if (pos-buffer > 0 && *(--pos) == 0x0d)
+				*pos = 0;
+
+			if (pos-buffer == 0)
+				break;
+
+#ifdef DEBUG
+			printf("%d. %s (%d)\n", lines, buffer, pos-buffer);
+#endif
+			if (lines == 0) {
+				if (strncasecmp("HTTP/", buffer, 5)) {
+					fprintf(stderr, "Wrong answer from server: %s\n", buffer);
+					return -1;
+				}
+
+				pos = buffer;
+				while (*pos != 0) {
+					if (*pos == ' ') {
+						pos++;
+						if(strncmp("200", pos, 3)) {
+							fprintf(stderr, "Wrong result-code: %s\n", buffer);
+							return -1;
+						} else {
+							break;
+						}
+					}
+					pos++;
+				}
+			}
+
+			pos = buffer;
+			lines++;
+		}
 	}
 
 	return fd;
-- 
2.39.5