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authorJune McEnroe <june@causal.agency>2022-02-27 09:57:33 -0500
committerJune McEnroe <june@causal.agency>2022-02-27 09:57:33 -0500
commit913a7ee3584b9cdb05b473123b529677f16e4e0b (patch)
tree45ed028bf5e09339cd815eb1277b6343213d44b6 /tls_bio_cb.c
parentImport LibreSSL 3.4.2 (diff)
downloadlibretls-913a7ee3584b9cdb05b473123b529677f16e4e0b.tar.gz
libretls-913a7ee3584b9cdb05b473123b529677f16e4e0b.zip
Import LibreSSL 3.5.0
Diffstat (limited to 'tls_bio_cb.c')
-rw-r--r--tls_bio_cb.c65
1 files changed, 46 insertions, 19 deletions
diff --git a/tls_bio_cb.c b/tls_bio_cb.c
index 0091808..dad9d23 100644
--- a/tls_bio_cb.c
+++ b/tls_bio_cb.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tls_bio_cb.c,v 1.19 2017/01/12 16:18:39 jsing Exp $ */
+/* $OpenBSD: tls_bio_cb.c,v 1.20 2022/01/10 23:39:48 tb Exp $ */
 /*
  * Copyright (c) 2016 Tobias Pape <tobias@netshed.de>
  *
@@ -29,19 +29,41 @@ static int bio_cb_read(BIO *bio, char *buf, int size);
 static int bio_cb_puts(BIO *bio, const char *str);
 static long bio_cb_ctrl(BIO *bio, int cmd, long num, void *ptr);
 
-static BIO_METHOD bio_cb_method = {
-	.type = BIO_TYPE_MEM,
-	.name = "libtls_callbacks",
-	.bwrite = bio_cb_write,
-	.bread = bio_cb_read,
-	.bputs = bio_cb_puts,
-	.ctrl = bio_cb_ctrl,
-};
+static BIO_METHOD *bio_cb_method;
+
+static pthread_mutex_t bio_cb_method_lock = PTHREAD_MUTEX_INITIALIZER;
+
+static void
+bio_cb_method_init(void)
+{
+	BIO_METHOD *bio_method;
+
+	if (bio_cb_method != NULL)
+		return;
+
+	bio_method = BIO_meth_new(BIO_TYPE_MEM, "libtls_callbacks");
+	if (bio_method == NULL)
+		return;
+
+	BIO_meth_set_write(bio_method, bio_cb_write);
+	BIO_meth_set_read(bio_method, bio_cb_read);
+	BIO_meth_set_puts(bio_method, bio_cb_puts);
+	BIO_meth_set_ctrl(bio_method, bio_cb_ctrl);
+
+	bio_cb_method = bio_method;
+}
 
 static BIO_METHOD *
 bio_s_cb(void)
 {
-	return (&bio_cb_method);
+	if (bio_cb_method != NULL)
+		return (bio_cb_method);
+
+	pthread_mutex_lock(&bio_cb_method_lock);
+	bio_cb_method_init();
+	pthread_mutex_unlock(&bio_cb_method_lock);
+
+	return (bio_cb_method);
 }
 
 static int
@@ -57,10 +79,10 @@ bio_cb_ctrl(BIO *bio, int cmd, long num, void *ptr)
 
 	switch (cmd) {
 	case BIO_CTRL_GET_CLOSE:
-		ret = (long)bio->shutdown;
+		ret = (long)BIO_get_shutdown(bio);
 		break;
 	case BIO_CTRL_SET_CLOSE:
-		bio->shutdown = (int)num;
+		BIO_set_shutdown(bio, (int)num);
 		break;
 	case BIO_CTRL_DUP:
 	case BIO_CTRL_FLUSH:
@@ -69,7 +91,7 @@ bio_cb_ctrl(BIO *bio, int cmd, long num, void *ptr)
 	case BIO_CTRL_GET:
 	case BIO_CTRL_SET:
 	default:
-		ret = BIO_ctrl(bio->next_bio, cmd, num, ptr);
+		ret = BIO_ctrl(BIO_next(bio), cmd, num, ptr);
 	}
 
 	return (ret);
@@ -78,7 +100,7 @@ bio_cb_ctrl(BIO *bio, int cmd, long num, void *ptr)
 static int
 bio_cb_write(BIO *bio, const char *buf, int num)
 {
-	struct tls *ctx = bio->ptr;
+	struct tls *ctx = BIO_get_data(bio);
 	int rv;
 
 	BIO_clear_retry_flags(bio);
@@ -96,7 +118,7 @@ bio_cb_write(BIO *bio, const char *buf, int num)
 static int
 bio_cb_read(BIO *bio, char *buf, int size)
 {
-	struct tls *ctx = bio->ptr;
+	struct tls *ctx = BIO_get_data(bio);
 	int rv;
 
 	BIO_clear_retry_flags(bio);
@@ -115,8 +137,9 @@ int
 tls_set_cbs(struct tls *ctx, tls_read_cb read_cb, tls_write_cb write_cb,
     void *cb_arg)
 {
-	int rv = -1;
+	const BIO_METHOD *bio_cb;
 	BIO *bio;
+	int rv = -1;
 
 	if (read_cb == NULL || write_cb == NULL) {
 		tls_set_errorx(ctx, "no callbacks provided");
@@ -127,12 +150,16 @@ tls_set_cbs(struct tls *ctx, tls_read_cb read_cb, tls_write_cb write_cb,
 	ctx->write_cb = write_cb;
 	ctx->cb_arg = cb_arg;
 
-	if ((bio = BIO_new(bio_s_cb())) == NULL) {
+	if ((bio_cb = bio_s_cb()) == NULL) {
+		tls_set_errorx(ctx, "failed to create callback method");
+		goto err;
+	}
+	if ((bio = BIO_new(bio_cb)) == NULL) {
 		tls_set_errorx(ctx, "failed to create callback i/o");
 		goto err;
 	}
-	bio->ptr = ctx;
-	bio->init = 1;
+	BIO_set_data(bio, ctx);
+	BIO_set_init(bio, 1);
 
 	SSL_set_bio(ctx->ssl_conn, bio, bio);
 
d>June McEnroe 2022-06-08Indicate if still reading or no resultsJune McEnroe 2022-06-08Add Maiden, Mother, CroneJune McEnroe Mixed bag like most collections of short stories. Some of them are pretty good. The author of the worst written story also has the worst written bio. 2022-06-05FIRST SHOW IN 2.5 YEARS BABEY!!!June McEnroe 2022-06-03Set line number on File linesJune McEnroe 2022-06-03Stop polling stdin after EOFJune McEnroe 2022-06-02Set TABSIZE=4June McEnroe Absolutely indiscriminately. 2022-06-02Do basic match highlightingJune McEnroe 2022-06-02Clean up parsing a littleJune McEnroe 2022-06-02Don't duplicate path stringJune McEnroe 2022-06-02Use stderr instead of /dev/tty, realloc buffer if lines too longJune McEnroe For some reason I haven't been able to figure out, trying to poll /dev/tty returns POLLNVAL (and this was using 100% CPU looping), but using stderr instead works fine. 2022-06-02Add initial working version of qfJune McEnroe 2022-05-29Set prompt for okshJune McEnroe