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 2708c6c11d685ab25c12d558961d924c9a4533d2.

Task-number: QTBUG-68156
Change-Id: I37cc060e90422779a6c29a324ab900f0fb99cfa7
Reviewed-by: Lisandro Damián Nicanor Pérez Meyer <perezmeyer@gmail.com>
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 59c93677dd..2f8095cd81 100644
--- a/src/network/ssl/qsslsocket_openssl_symbols.cpp
+++ b/src/network/ssl/qsslsocket_openssl_symbols.cpp
@@ -771,7 +771,7 @@ 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
@@ -804,14 +804,23 @@ static QPair<QLibrary*, QLibrary*> loadOpenSsl()
     }
 
 #if !QT_CONFIG(opensslv11)
-    // 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
 #endif