AuroraMiddleware/qt5base-lts
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Find libssl on linux using paths of loaded libraries

Browse Source 
The installed path of libssl may include an element describing the
architecture, e.g. x86_64-linux-gnu or i386-linux-gnu.
In most cases, the libraries already loaded (static dependencies of
Qt, such as libc) will include the path where libssl is installed.

Use dl_iterate_phdr to find the paths. This is a linux specific
function, but it does provide "/lib/<arch>" and "/usr/lib/<arch>"
at the point ssl symbols are being resolved when running the
qsslsocket autotest (which has less dependencies than a typical
Qt app).

Task-number: QTBUG-24694
Change-Id: I9af8081f41bb85c2fcff450a2acda5672a7f7518
Reviewed-by: Harald Fernengel <harald.fernengel@nokia.com>
This commit is contained in:
Shane Kearns 2012-03-28 16:06:57 +01:00 committed by Qt by Nokia
parent 76ae64abb5
commit e5337ad1b1
1 changed files with 26 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
src/network/ssl/qsslsocket_openssl_symbols.cpp
View File

@ -53,6 +53,9 @@
#if defined(Q_OS_UNIX)
#include <QtCore/qdir.h>
#endif
#ifdef Q_OS_LINUX
#include <link.h>
#endif
QT_BEGIN_NAMESPACE
@ -347,6 +350,23 @@ static bool libGreaterThan(const QString &lhs, const QString &rhs)
return true;
}
#ifdef Q_OS_LINUX
static int dlIterateCallback(struct dl_phdr_info *info, size_t size, void *data)
{
if (size < sizeof (info->dlpi_addr) + sizeof (info->dlpi_name))
return 1;
QSet<QString> *paths = (QSet<QString> *)data;
QString path = QString::fromLocal8Bit(info->dlpi_name);
if (!path.isEmpty()) {
QFileInfo fi(path);
path = fi.absolutePath();
if (!path.isEmpty())
paths->insert(path);
}
return 0;
}
#endif
static QStringList findAllLibSsl()
{
QStringList paths;
@ -358,6 +378,12 @@ static QStringList findAllLibSsl()
.split(QLatin1Char(':'), QString::SkipEmptyParts);
# endif
paths << QLatin1String("/lib") << QLatin1String("/usr/lib") << QLatin1String("/usr/local/lib");
#ifdef Q_OS_LINUX
// discover paths of already loaded libraries
QSet<QString> loadedPaths;
dl_iterate_phdr(dlIterateCallback, &loadedPaths);
paths.append(loadedPaths.toList());
#endif
QStringList foundSsls;
foreach (const QString &path, paths) {