Differences

This shows you the differences between two versions of the page.

--- sdk:httpget [2015/07/02 13:02] – created fachet
+++ sdk:httpget [2015/07/02 14:15] (current) – fachet
@@ Line 7: / Line 7: @@
 if (send(s, "GET / HTTP/1.0\r\n\r\n") == -1) exit(3);
 if ((r = recv(s)) == NULL) exit(4);
-printf("%s", r);
+printf("%s\n", r);
+if (!strstr(r, "HTTP/1.1 200 OK")) {
+   i = substr(r, strstr(r, "IP Address: ") + 12, strlen(r));
+   printf("IP Address: %s\n", left(i, strstr(i, "</body>")));
+}
 close(s);
+exit(0);
 </code>
 <code c Output>
 HTTP/1.1 200 OK
 Content-Type: text/html
@@ Line 23: / Line 27: @@
 <html><head><title>Current IP Check</title></head><body>Current IP Address: 89.12.4.18</body></html>
+IP Address: 89.12.4.18
+</code>
+<code c httpget2.are>
+To get from or post data to a web server you can easily use standard sockets.
+if ((so = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) exit(1);
+if (connect(so, "checkip.dyndns.com", 80) < 0) exit(2);
+if (send(so, "GET / HTTP/1.0\r\n\r\n") == -1) exit(3);
+if ((s = recv(so)) == NULL) exit(4);
+printf("RESPONSE: <%s>\n", left(s, p = strstr(s, "\n")));
+s = right(s, strlen(s) - p - 1);
+while ((p = strchr(s, "\n")) > 0) {
+  h = left(s, p);
+  hp = strstr(h, ": ");
+  l = left(h, hp);
+  r = substr(h, hp + 2, strlen(s)-hp-2-1);
+  printf("HEADER: <%s> value <%s>\n", l, r);
+  s = right(s, strlen(s) - p - 1);
+}
+printf("BODY: %s\n", s);
+close(s);
+exit(0);
 </code>