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#1 2019-01-16 08:41:16

jacopastorius
Member
From: Italy
Registered: 2006-05-01
Posts: 134

[SOLVED] Error while loading shared libraries: libpcap.so.0.8

Hi guys, running an executable gives me the error for missing libcap.so.0.8. I checked what version of libcap i have:

[root@du du]# ls -la /usr/lib/libcap.so.*
lrwxrwxrwx 1 root root    14 Nov 19 08:40 /usr/lib/libcap.so.2 -> libcap.so.2.26
-rw-r--r-- 1 root root 22456 Nov 19 08:40 /usr/lib/libcap.so.2.26

Thank you for helping

EDIT: resolution process starting from post #11

Last edited by jacopastorius (2019-01-16 18:21:46)

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#2 2019-01-16 08:47:37

arojas
Developer
From: Spain
Registered: 2011-10-09
Posts: 2,237

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

Running *what* executable?

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#3 2019-01-16 08:50:49

WorMzy
Administrator
From: Scotland
Registered: 2010-06-16
Posts: 13,012
Website

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

Please read http://www.catb.org/~esr/faqs/smart-questions.html

Sakura:-
Mobo: MSI MAG X570S TORPEDO MAX // Processor: AMD Ryzen 9 5950X @4.9GHz // GFX: AMD Radeon RX 5700 XT // RAM: 32GB (4x 8GB) Corsair DDR4 (@ 3000MHz) // Storage: 1x 3TB HDD, 6x 1TB SSD, 2x 120GB SSD, 1x 275GB M2 SSD

Making lemonade from lemons since 2015.

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#4 2019-01-16 09:00:04

jacopastorius
Member
From: Italy
Registered: 2006-05-01
Posts: 134

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

The executable is a software that sets up a client that connects to a server on PC

https://github.com/spacemeowx2/switch-lan-play

Here it is the executable

https://github.com/spacemeowx2/switch-l … play-linux

Last edited by jacopastorius (2019-01-16 09:05:28)

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#5 2019-01-16 09:06:33

arojas
Developer
From: Spain
Registered: 2011-10-09
Posts: 2,237

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

You should build the software from source whenever possible instead of using precompiled binaries

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#6 2019-01-16 09:09:20

jacopastorius
Member
From: Italy
Registered: 2006-05-01
Posts: 134

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

ok, i'm going to build it from source, but the dev says that "This project depends on libpcap and libuv, you can install libpcap0.8-dev and libuv1-dev on Ubuntu or Debian:"

sudo apt install libpcap0.8-dev libuv1-dev

Gonna try later by the way

EDIT. Some errors i can't understand occurred after launching cmake:

[du@du Projects]$ cmake build
-- The C compiler identification is GNU 8.2.1
-- The CXX compiler identification is GNU 8.2.1
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Check if the system is big endian
-- Searching 16 bit integer
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of unsigned short
-- Check size of unsigned short - done
-- Using unsigned short
-- Check if the system is big endian - little endian
-- Installing libuv via submodule
fatal: not a git repository (or any parent up to mount point /)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
CMake Error at external/libuv/CMakeLists.txt:34 (include):
  include could not find load file:

    external/external.cmake


CMake Error at external/libuv/CMakeLists.txt:36 (add_subdirectory):
  add_subdirectory given source "base" which is not an existing directory.


CMake Error at external/libuv/CMakeLists.txt:37 (add_subdirectory):
  add_subdirectory given source "lwip" which is not an existing directory.


CMake Error at external/libuv/CMakeLists.txt:38 (add_subdirectory):
  add_subdirectory given source "uv_lwip" which is not an existing directory.


CMake Error at external/libuv/CMakeLists.txt:39 (add_subdirectory):
  add_subdirectory given source "src" which is not an existing directory.


CMake Error at external/external.cmake:17 (target_include_directories):
  Cannot specify include directories for target "uv_a" which is not built by
  this project.
Call Stack (most recent call first):
  CMakeLists.txt:34 (include)


error: src/unix/internal.h: No such file or directory
-- Installing uvw via submodule
fatal: not a git repository (or any parent up to mount point /)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
CMake Error at external/external.cmake:38 (add_subdirectory):
  The source directory

    /home/du/Projects/build/external/uvw

  does not contain a CMakeLists.txt file.
Call Stack (most recent call first):
  CMakeLists.txt:34 (include)


fatal: not a git repository (or any parent up to mount point /)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
git describe --tags output is empty, set version to v0.0.7
-- Found PCAP: /usr/lib/libpcap.so  
-- Configuring incomplete, errors occurred!
See also "/home/du/Projects/CMakeFiles/CMakeOutput.log".

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Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" succeeded.
Compiler: /usr/bin/c++ 
Build flags: 
Id flags:  

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Compilation of the CXX compiler identification source "CMakeCXXCompilerId.cpp" produced "a.out"

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Last edited by jacopastorius (2019-01-16 09:50:10)

Offline

#7 2019-01-16 11:34:58

Lone_Wolf
Administrator
From: Netherlands, Europe
Registered: 2005-10-04
Posts: 14,291

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

-- Installing libuv via submodule
fatal: not a git repository (or any parent up to mount point /)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).

https://github.com/spacemeowx2/switch-l … gitmodules

Looks like switch-lan-play has 2 external dependencies they integrate by using git submodules .
No idea how to replicate that without switching to a *-git pkgbuild .

Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

clean chroot building not flexible enough ?
Try clean chroot manager by graysky

Offline

#8 2019-01-16 11:40:06

jacopastorius
Member
From: Italy
Registered: 2006-05-01
Posts: 134

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

ok, it seems a situation that could led to dependencies problems in the future. I think i'll give up, unless using the .exe binary with wine. Do you think worth it a try?

Offline

#9 2019-01-16 12:46:37

WorMzy
Administrator
From: Scotland
Registered: 2010-06-16
Posts: 13,012
Website

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

https://github.com/spacemeowx2/switch-l … l.cmake#L1

-DUV_LIBRARY=ON -DUVW_LIBRARY=ON

Should tell cmake to use the system libraries instead of git submodules.

Sakura:-
Mobo: MSI MAG X570S TORPEDO MAX // Processor: AMD Ryzen 9 5950X @4.9GHz // GFX: AMD Radeon RX 5700 XT // RAM: 32GB (4x 8GB) Corsair DDR4 (@ 3000MHz) // Storage: 1x 3TB HDD, 6x 1TB SSD, 2x 120GB SSD, 1x 275GB M2 SSD

Making lemonade from lemons since 2015.

Offline

#10 2019-01-16 14:02:51

jacopastorius
Member
From: Italy
Registered: 2006-05-01
Posts: 134

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

thank you WorMzy, where should i insert that line? I mean, i know in what file, but don't know in which line or replacing which line

Offline

#11 2019-01-16 14:19:36

loqs
Member
Registered: 2014-03-06
Posts: 18,623

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

Pass the options to cmake.

cmake -DUV_LIBRARY=ON -DUVW_LIBRARY=ON

Offline

#12 2019-01-16 14:45:45

jacopastorius
Member
From: Italy
Registered: 2006-05-01
Posts: 134

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

Thank you loqs. cmake finished successfully but make returns error i am not able to interpret:

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[ 72%] Building C object src/CMakeFiles/lan-play.dir/pcaploop.c.o
[ 75%] Building C object src/CMakeFiles/lan-play.dir/packet.c.o
[ 77%] Building C object src/CMakeFiles/lan-play.dir/arp.c.o
[ 79%] Building C object src/CMakeFiles/lan-play.dir/helper.c.o
[ 81%] Building C object src/CMakeFiles/lan-play.dir/lan-client.c.o
[ 84%] Building CXX object src/CMakeFiles/lan-play.dir/gateway.cpp.o
In file included from /home/du/Projects/build/src/gateway.cpp:1:
/home/du/Projects/build/src/proxy.hpp:6:10: fatal error: uvw.hpp: No such file or directory
 #include <uvw.hpp>
          ^~~~~~~~~
compilation terminated.
make[2]: *** [src/CMakeFiles/lan-play.dir/build.make:141: src/CMakeFiles/lan-play.dir/gateway.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:259: src/CMakeFiles/lan-play.dir/all] Error 2
make: *** [Makefile:130: all] Error 2

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#13 2019-01-16 14:53:20

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,859

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

Seems to rather depend on https://github.com/skypjack/uvw than on libuv …

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#14 2019-01-16 15:00:28

jacopastorius
Member
From: Italy
Registered: 2006-05-01
Posts: 134

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

my newbie action was trying to put uvw.hpp in /home/du/Projects/switch-lan-play-master/build/src/ but obviously that didn't help. I suppose that i have to compile uvw from source too?

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#15 2019-01-16 15:05:47

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,859

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

It's apparently just a bunch of headers, but they'll have to be in the include path.

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#16 2019-01-16 15:18:09

jacopastorius
Member
From: Italy
Registered: 2006-05-01
Posts: 134

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

i thought the error message stated that uvw.hpp is in the include path but that file was missing

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#17 2019-01-16 15:24:04

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,859

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

No, the compiler is looking at eg. /usr/include/uvw.hpp but the file isn't there.
To be looked up in the source path, the statement would have to be along

#include "uvw.hpp"

(Though chaing this is likely to fail because uvw.hpp will most likely include a lot of "<uvw/foo.hpp>")

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#18 2019-01-16 15:34:32

jacopastorius
Member
From: Italy
Registered: 2006-05-01
Posts: 134

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

For what i can understand from the shell messages, i checked the file gateway.cpp and at the top of it there is:

#include "proxy.hpp"
#include <uv_lwip.hpp>
#include <base/llog.h>
#include <functional>
#include <memory>
#include "gateway.h"
#include "helper.h"
#include "packet.h"
#include "ipv4/ipv4.h"
#include "uvw.hpp"

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#19 2019-01-16 15:44:33

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,859

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

In file included from /home/du/Projects/build/src/gateway.cpp:1:
/home/du/Projects/build/src/proxy.hpp:6:10: fatal error: uvw.hpp: No such file or directory
 #include <uvw.hpp>

gateway.cpp includes "proxy.hpp" and that includes  <uvw.hpp> and that's where the build failed.

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#20 2019-01-16 15:56:52

jacopastorius
Member
From: Italy
Registered: 2006-05-01
Posts: 134

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

ok, i think i'll give up. Thank you very much for contributing to make a little progression in my computer knowledge

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#21 2019-01-16 16:11:12

loqs
Member
Registered: 2014-03-06
Posts: 18,623

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

Please try installing uvw with the following then try building switch-lan-play again

pkgname=uvw
pkgver=1.12.0
pkgrel=1
pkgdesc="Header-only, event based, tiny and easy to use libuv wrapper in modern C++"
arch=('any')
url="https://github.com/skypjack/uvw"
license=('MIT')
depends=('libuv')
makedepends=('cmake')
source=("https://github.com/skypjack/uvw/archive/v1.12.0_libuv-v1.24.tar.gz")
sha256sums=('b7751294fa00e8a96cd7d70989beda7a6117f5d9f4751306b7b2bbbb4702aac8')

build() {
  mkdir -p build
  cd build
  cmake ../uvw-1.12.0_libuv-v1.24 -DCMAKE_INSTALL_PREFIX=/usr
  make
}

package() {
  install -Dm 755 uvw-1.12.0_libuv-v1.24/LICENSE "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"
  cd build
  make DESTDIR="$pkgdir/" install
}

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#22 2019-01-16 16:16:54

jacopastorius
Member
From: Italy
Registered: 2006-05-01
Posts: 134

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

i am sorry loqs but i do not get how to install with that. Is it a script that i have to make executable?

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#23 2019-01-16 16:20:07

loqs
Member
Registered: 2014-03-06
Posts: 18,623

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

PKGBUILD is the format used by makepkg to buid packages that can be installed by pacman.

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#24 2019-01-16 16:37:32

jacopastorius
Member
From: Italy
Registered: 2006-05-01
Posts: 134

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

thank you guys, the compiler finished successfully. 

[du@du switch-lan-play-master]$ make
[  6%] Built target base
[ 63%] Built target lwip_lib
[ 68%] Built target uv_lwip
Scanning dependencies of target lan-play
[ 70%] Building CXX object src/CMakeFiles/lan-play.dir/gateway.cpp.o
[ 72%] Building CXX object src/CMakeFiles/lan-play.dir/proxy_direct.cpp.o
[ 75%] Building CXX object src/CMakeFiles/lan-play.dir/proxy_socks5.cpp.o
[ 77%] Building C object src/CMakeFiles/lan-play.dir/ipv4/ipv4.c.o
[ 79%] Building C object src/CMakeFiles/lan-play.dir/ipv4/tcp.c.o
[ 81%] Building C object src/CMakeFiles/lan-play.dir/ipv4/udp.c.o
[ 84%] Building C object src/CMakeFiles/lan-play.dir/ipv4/icmp.c.o
[ 86%] Linking CXX executable lan-play
[100%] Built target lan-play

Do i have to run make install with sudo now?

Last edited by jacopastorius (2019-01-16 16:38:58)

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#25 2019-01-16 16:39:48

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,859

Re: [SOLVED] Error while loading shared libraries: libpcap.so.0.8

find -name 'lan-play'

You can but don't necessarily have to (unless it requires to install files in eg. /usr/share)

Last edited by seth (2019-01-16 16:40:42)

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