From abec19eca0be05f3455cc11a12c74de49080eb1f Mon Sep 17 00:00:00 2001
From: John <ebusd@ebusd.eu>
Date: Sat, 12 Feb 2022 15:43:49 +0100
Subject: [PATCH] backwards compatibility

---
 make_debian.sh               |  2 +-
 src/lib/utils/httpclient.cpp | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/make_debian.sh b/make_debian.sh
index 1d866536..fc13e014 100755
--- a/make_debian.sh
+++ b/make_debian.sh
@@ -82,7 +82,7 @@ else
 fi
 ldd $RELEASE/usr/bin/ebusd | egrep -q libssl.so.1.1
 if [ $? -eq 0 ]; then
-  extralibs="$extralibs, libssl1.1 (>= 1.1.1)"
+  extralibs="$extralibs, libssl1.1 (>= 1.1.0)"
 fi
 
 if [ -n "$RUNTEST" ]; then
diff --git a/src/lib/utils/httpclient.cpp b/src/lib/utils/httpclient.cpp
index 81d2b355..b78815c7 100755
--- a/src/lib/utils/httpclient.cpp
+++ b/src/lib/utils/httpclient.cpp
@@ -76,11 +76,18 @@ SSLSocket::~SSLSocket() {
 
 ssize_t SSLSocket::send(const char* data, size_t len) {
   do {
+#if OPENSSL_VERSION_NUMBER >= 0x10101000L
     size_t part = 0;
     int res = BIO_write_ex(m_bio, data, len, &part);
     if (res == 1) {
       return static_cast<signed>(part);
     }
+#else
+    int res = BIO_write(m_bio, data, static_cast<int>(len));
+    if (res > 0) {
+      return static_cast<ssize_t>(res);
+    }
+#endif
     if (!BIO_should_retry(m_bio)) {
       if (isError("send", true)) {
         return -1;
@@ -94,11 +101,18 @@ ssize_t SSLSocket::send(const char* data, size_t len) {
 
 ssize_t SSLSocket::recv(char* data, size_t len) {
   do {
+#if OPENSSL_VERSION_NUMBER >= 0x10101000L
     size_t part = 0;
     int res = BIO_read_ex(m_bio, data, len, &part);
     if (res == 1) {
       return static_cast<signed>(part);
     }
+#else
+    int res = BIO_read(m_bio, data, static_cast<int>(len));
+    if (res > 0) {
+      return static_cast<ssize_t>(res);
+    }
+#endif
     if (!BIO_should_retry(m_bio)) {
       if (isError("recv", true)) {
         return -1;