patch for compiling torsocks under OS X 10.5.8

torsocks2.1.0_strndup.patch

diff --git a/configure.ac b/configure.ac
index 7e442f7..80ad9a4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -55,6 +55,9 @@ AC_CHECK_FUNCS(strcspn strdup strerror strcasecmp strncasecmp mmap munmap \
 	[AC_MSG_ERROR("Required function not found")]
 )
 
+dnl Check for strndup
+AC_CHECK_FUNC(strndup, AC_DEFINE([HAVE_STRNDUP],[],[Description]), [])
+
 ##############################################################################
 # 3. Determine libraries we need to include when linking libtorsocks.
 #    OpenBSD and OSX have some special requirements here.
diff --git a/src/common/config-file.c b/src/common/config-file.c
index 2147068..6f87fe3 100644
--- a/src/common/config-file.c
+++ b/src/common/config-file.c
@@ -67,6 +67,9 @@ static int set_onion_info(const char *addr, struct configuration *config)
 	unsigned long bit_mask;
 	char *ip = NULL, *mask = NULL;
 	in_addr_t net;
+#ifndef HAVE_STRNDUP
+	size_t len;
+#endif
 
 	assert(addr);
 	assert(config);
@@ -79,7 +82,13 @@ static int set_onion_info(const char *addr, struct configuration *config)
 	}
 
 	mask = strdup(addr + (ip - addr) + 1);
+#ifdef HAVE_STRNDUP
 	ip = strndup(addr, ip - addr);
+#else
+	len = ip - addr;
+	ip = calloc(1, len + 1);
+	if (ip) memcpy(ip, addr, len);
+#endif
 	if (!ip || !mask) {
 		PERROR("[config] strdup onion addr");
 		ret = -ENOMEM;
diff --git a/tests/unit/test_socks5.c b/tests/unit/test_socks5.c
index 4ef92f7..69938c1 100644
--- a/tests/unit/test_socks5.c
+++ b/tests/unit/test_socks5.c
@@ -68,7 +68,7 @@ static struct connection *get_connection_domain_stub(void)
 
 	conn = connection_create(1, NULL);
 	conn->dest_addr.domain = CONNECTION_DOMAIN_NAME;
-	conn->dest_addr.hostname.addr = strndup(addr_str, strlen(addr_str));
+	conn->dest_addr.hostname.addr = strdup(addr_str);
 	conn->dest_addr.hostname.port = htons(9050);
 
 	return conn;