commit 800aa93c05250a0482e1767897cb80e3b52f0d07
from: Omar Polo <op@omarpolo.com>
date: Sat Jul 22 15:47:07 2023 UTC

gg: warn when the TLS layer is not closed properly

various servers are not handling correctly the close notify so for
the moment don't turn this into an hard error but just warn.
Hopefully, given some time, most servers will be fixed.

while here, drop the gotos and just use a break to exit the main
loop.

commit - 2ff1e2a9237514d5d473b2b3562ec767542b55bc
commit + 800aa93c05250a0482e1767897cb80e3b52f0d07
blob - 54fb280b4af16cd6f9a5da79744be04d161aef67
blob + d8508f22803de11a56479d84f57921e0489879e4
--- gg.c
+++ gg.c
@@ -239,7 +239,7 @@ get(const char *r)
 
 		len = dorep(ctx, buf, sizeof(buf));
 		if (len == 0)
-			goto close;
+			break;
 
 		if (foundhdr) {
 			write(1, buf, len);
@@ -258,7 +258,7 @@ get(const char *r)
 
 		if (debug == DEBUG_CODE) {
 			printf("%d\n", code);
-			goto close;
+			break;
 		}
 
 		if (debug == DEBUG_HEADER) {
@@ -266,7 +266,7 @@ get(const char *r)
 			assert(t != NULL);
 			*t = '\0';
 			printf("%s\n", buf);
-			goto close;
+			break;
 		}
 
 		if (debug == DEBUG_META) {
@@ -274,7 +274,7 @@ get(const char *r)
 			assert(t != NULL);
 			*t = '\0';
 			printf("%s\n", buf+3);
-			goto close;
+			break;
 		}
 
 		if (debug == DEBUG_ALL) {
@@ -290,14 +290,19 @@ get(const char *r)
 		write(1, t, len);
 	}
 
-close:
-	od = tls_close(ctx);
-	if (od == TLS_WANT_POLLIN || od == TLS_WANT_POLLOUT)
-		goto close;
-
-	tls_close(ctx);
-	tls_free(ctx);
-	return code;
+	for (;;) {
+		switch (tls_close(ctx)) {
+		case TLS_WANT_POLLIN:
+		case TLS_WANT_POLLOUT:
+			continue;
+		case -1:
+			warnx("tls_close: %s", tls_error(ctx));
+			/* fallthrough */
+		default:
+			tls_free(ctx);
+			return code;
+		}
+	}
 }
 
 static void __attribute__((noreturn))