OpenSSL: also try the "1.0.2" soname

Turns out that also Debian patches OpenSSL 1.0, changing its soname to "1.0.2".
Therefore, try also to load that one.

Amends ec298193baae320410deac41e4884aa3474dcd6d.

Task-number: QTBUG-68156
Change-Id: I37cc060e90422779a6c29a324ab900f0fb99cfa7
(cherry picked from commit 2a494875b8f3d50046d35fb21988c288fcfa1dc7)
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>

1 files changed, 18 insertions, 9 deletions

diff --git a/src/network/ssl/qsslsocket_openssl_symbols.cpp b/src/network/ssl/qsslsocket_openssl_symbols.cpp
index 6e920d5c81..8e290baa0b 100644
--- a/src/network/ssl/qsslsocket_openssl_symbols.cpp
+++ b/src/network/ssl/qsslsocket_openssl_symbols.cpp
@@ -669,7 +669,7 @@ static QPair<QLibrary*, QLibrary*> loadOpenSsl()
     // reason, we will search a few common paths (see findAllLibSsl() above) in hopes
     // we find one that works.
     //
-    // If that fails, for OpenSSL 1.0 we also try a fallback -- just look up
+    // If that fails, for OpenSSL 1.0 we also try some fallbacks -- look up
     // libssl.so with a hardcoded soname. The reason is QTBUG-68156: the binary
     // builds of Qt happen (at the time of this writing) on RHEL machines,
     // which change SHLIB_VERSION_NUMBER to a non-portable string. When running
@@ -701,14 +701,23 @@ static QPair<QLibrary*, QLibrary*> loadOpenSsl()
         libcrypto->unload();
     }
 
-    // first-and-half attempt: for OpenSSL 1.0 try to load an hardcoded soname.
-    libssl->setFileNameAndVersion(QLatin1String("ssl"), QLatin1String("1.0.0"));
-    libcrypto->setFileNameAndVersion(QLatin1String("crypto"), QLatin1String("1.0.0"));
-    if (libcrypto->load() && libssl->load()) {
-        return pair;
-    } else {
-        libssl->unload();
-        libcrypto->unload();
+    // first-and-half attempts: for OpenSSL 1.0 try to load some hardcoded sonames:
+    // - "1.0.0" is the official upstream one
+    // - "1.0.2" is found on some distributions (e.g. Debian) that patch OpenSSL
+    static const QLatin1String fallbackSonames[] = {
+        QLatin1String("1.0.0"),
+        QLatin1String("1.0.2")
+    };
+
+    for (auto fallbackSoname : fallbackSonames) {
+        libssl->setFileNameAndVersion(QLatin1String("ssl"), fallbackSoname);
+        libcrypto->setFileNameAndVersion(QLatin1String("crypto"), fallbackSoname);
+        if (libcrypto->load() && libssl->load()) {
+            return pair;
+        } else {
+            libssl->unload();
+            libcrypto->unload();
+        }
     }
 #endif