commit 6ed790cd202d83428c70dc9c8162f9d96b2e8012
from: Omar Polo <op@omarpolo.com>
date: Mon Feb 12 22:03:47 2024 UTC

augment some code paths with some logging

commit - 07a751ac2365bdee6d0002632efa996d1dfcfb12
commit + 6ed790cd202d83428c70dc9c8162f9d96b2e8012
blob - 665be5e2551e10f12c9fe469c44c8b0b4186811a
blob + 2cc4ae379f66c72b12a3d0efed902a59f063e4ac
--- net.c
+++ net.c
@@ -33,6 +33,8 @@
 #include <string.h>
 #include <tls.h>
 #include <unistd.h>
+
+#include <openssl/err.h>
 
 #if HAVE_ASR_RUN
 # include <asr.h>
@@ -290,6 +292,19 @@ conn_towards(struct req *req)
 	try_to_connect(0, 0, req);
 }
 #endif
+
+static void
+ssl_error(const char *where)
+{
+	unsigned long	 code;
+	char		 errbuf[256];
+
+	fprintf(stderr, "failure(s) in %s:\n", where);
+	while ((code = ERR_get_error()) != 0) {
+		ERR_error_string_n(code, errbuf, sizeof(errbuf));
+		fprintf(stderr, "- %s\n", errbuf);
+	}
+}
 
 static void
 close_conn(int fd, short ev, void *d)
@@ -314,6 +329,8 @@ close_conn(int fd, short ev, void *d)
 		case TLS_WANT_POLLOUT:
 			yield_w(req, close_conn, NULL);
 			return;
+		case -1:
+			ssl_error("tls_close");
 		}
 
 		tls_free(req->ctx);
@@ -375,10 +392,13 @@ net_tls_handshake(int fd, short event, void *d)
 	case TLS_WANT_POLLOUT:
 		yield_w(req, net_tls_handshake, NULL);
 		return;
+	case -1:
+		ssl_error("tls_handshake");
 	}
 
 	hash = tls_peer_cert_hash(req->ctx);
 	if (hash == NULL) {
+		ssl_error("tls_peer_cert_hash");
 		close_with_errf(req, "handshake failed: %s",
 		    tls_error(req->ctx));
 		return;
@@ -411,6 +431,7 @@ net_tls_readcb(int fd, short event, void *d)
 	case TLS_WANT_POLLOUT:
 		goto retry;
 	case -1:
+		ssl_error("tls_read");
 		what |= EVBUFFER_ERROR;
 		goto err;
 	}
@@ -467,6 +488,7 @@ net_tls_writecb(int fd, short event, void *d)
 		case TLS_WANT_POLLOUT:
 			goto retry;
 		case -1:
+			ssl_error("tls_write");
 			what |= EVBUFFER_ERROR;
 			goto err;
 		}