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Code Issues

Postfix for CORE-5474, more generic way to check for actual library name

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This commit is contained in:
AlexPeshkoff 2019-05-24 20:02:30 +03:00
parent e697710ae4
commit 761a8f811d
1 changed files with 14 additions and 5 deletions
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19
src/common/os/posix/mod_loader.cpp
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@ -131,16 +131,25 @@ void* DlfcnModule::findSymbol(const Firebird::string& symName)
result = dlsym(module, newSym.c_str());
}
if (!result)
return NULL;
#ifdef HAVE_DLADDR
if (!PathUtils::isRelative(fileName))
Dl_info info;
if (!dladdr(result, &info))
return NULL;
if (PathUtils::isRelative(fileName) || PathUtils::isRelative(info.dli_fname))
{
Dl_info info;
if (!dladdr(result, &info))
return NULL;
if (fileName != info.dli_fname)
// check only name (not path) of the library
Firebird::PathName dummyDir, nm1, nm2;
PathUtils::splitLastComponent(dummyDir, nm1, fileName);
PathUtils::splitLastComponent(dummyDir, nm2, info.dli_fname);
if (nm1 != nm2)
return NULL;
}
else if (fileName != info.dli_fname)
return NULL;
#endif
return result;