Tdesktop: Why is telegram trying to open some libraries from /home/preston?

[DevAlone]

I've just run the last version of telegram desktop with strace, and these lines appeared:

open("/home/preston/Telegram/tdesktop/out/Release/../../../Libraries/crashpad/out/Release/tls/x86_64/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/home/preston/Telegram/tdesktop/out/Release/../../../Libraries/crashpad/out/Release/tls/x86_64", 0x7ffc4e942b50) = -1 ENOENT (No such file or directory)
open("/home/preston/Telegram/tdesktop/out/Release/../../../Libraries/crashpad/out/Release/tls/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/home/preston/Telegram/tdesktop/out/Release/../../../Libraries/crashpad/out/Release/tls", 0x7ffc4e942b50) = -1 ENOENT (No such file or directory)
open("/home/preston/Telegram/tdesktop/out/Release/../../../Libraries/crashpad/out/Release/x86_64/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/home/preston/Telegram/tdesktop/out/Release/../../../Libraries/crashpad/out/Release/x86_64", 0x7ffc4e942b50) = -1 ENOENT (No such file or directory)
open("/home/preston/Telegram/tdesktop/out/Release/../../../Libraries/crashpad/out/Release/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/home/preston/Telegram/tdesktop/out/Release/../../../Libraries/crashpad/out/Release", 0x7ffc4e942b50) = -1 ENOENT (No such file or directory)

As you guess, I don't have /home/preston dir. Maybe you have some mistakes in your build config.

OS - Ubuntu 16.04.4 LTS

[omkarnathsingh]

Aha. Nice findings. /home/preston surely is the directory of the Dev. It should be made general.

[stek29]

@omkarnathsingh no, it just should not be there, and the fact it's /home/Preston and not $HOME saves TDesktop from easy dylib hijacking

[Aokromes]

rgrep preston *
Telegram/SourceFiles/boxes/add_contact_box.cpp: _checkRequestId = MTP::send(MTPchannels_CheckUsername(_channel->inputChannel, MTP_string("preston")), RPCDoneHandlerPtr(), rpcFail(&SetupChannelBox::onFirstCheckFail));

I suppose Telegram Desktop bin is not enough cross platform.

[ValdikSS]

Telegram executable has embedded RPATH as follows:

$ patchelf --print-rpath Telegram 
/usr/local/tdesktop/Qt-5.6.2/lib:/usr/local/tdesktop/Qt-5.6.2/plugins:/usr/local/tdesktop/Qt-5.6.2/plugins/bearer:/usr/local/tdesktop/Qt-5.6.2/plugins/platforms:/usr/local/tdesktop/Qt-5.6.2/plugins/imageformats:/usr/local/tdesktop/Qt-5.6.2/plugins/platforminputcontexts:/usr/local/lib:/home/preston/Telegram/tdesktop/out/Release/../../../Libraries/crashpad/out/Release

The developers should strip RPATH since the binary uses static Qt linking.