From 2b0153d4f076d501b21de2e54937a5bb1b139635 Mon Sep 17 00:00:00 2001
From: jsing <>
Date: Sat, 12 Jul 2014 01:20:25 +0000
Subject: Initial version of libressl - a library that provides a clean,
 simple, consistent and secure-by-default API for SSL clients (and soon
 servers).

This is a long way from complete and the interface will likely change
substantially - committing now so that further work can happen in the tree.

Initiated by tedu@ and inspired by discussions with tedu@, beck@ and
other developers.
---
 src/lib/libressl/ressl_util.c | 80 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 src/lib/libressl/ressl_util.c

(limited to 'src/lib/libressl/ressl_util.c')

diff --git a/src/lib/libressl/ressl_util.c b/src/lib/libressl/ressl_util.c
new file mode 100644
index 0000000000..ee7b1edbd3
--- /dev/null
+++ b/src/lib/libressl/ressl_util.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdlib.h>
+
+#include "ressl_internal.h"
+
+/*
+ * Extract the host and port from a colon separated value. For a literal IPv6
+ * address the address must be contained with square braces. If a host and
+ * port are successfully extracted, the function will return 0 and the
+ * caller is responsible for freeing the host and port. If no port is found
+ * then the function will return 1, with both host and port being NULL.
+ * On memory allocation failure -1 will be returned.
+ */
+int
+ressl_host_port(const char *hostport, char **host, char **port)
+{
+	char *h, *p, *s;
+	int rv = 1;
+
+	*host = NULL;
+	*port = NULL;
+
+	if ((s = strdup(hostport)) == NULL)
+		goto fail;
+
+	h = p = s;
+
+	/* See if this is an IPv6 literal with square braces. */
+	if (p[0] == '[') {
+		h++;
+		if ((p = strchr(s, ']')) == NULL)
+			goto done;
+		*p++ = '\0';
+	}
+
+	/* Find the port seperator. */
+	if ((p = strchr(p, ':')) == NULL)
+		goto done;
+
+	/* If there is another separator then we have issues. */
+	if (strchr(p + 1, ':') != NULL)
+		goto done;
+
+	*p++ = '\0';
+
+	if (asprintf(host, "%s", h) == -1)
+		goto fail;
+	if (asprintf(port, "%s", p) == -1)
+		goto fail;
+
+	rv = 0;
+	goto done;
+
+fail:
+	free(*host);
+	*host = NULL;
+	free(*port);
+	*port = NULL;
+	rv = -1;
+
+done:
+	free(s);
+
+	return (rv);
+}
-- 
cgit v1.2.3-55-g6feb