shell@M2E:/data/local # /data/local/androidvncserver_arm64
Framebuffer display grabber selected
Initializing grabber method...
--Initializing framebuffer access method--
line_lenght=4352 xres=1080, yres=1920, xresv=1088, yresv=5760, xoffs=0, yoffs=0, bpp=32
Initializing virtual keyboard and touch device...
---Initializing uinput...---
Initializing VNC server:
width: 1080
height: 1920
bpp: 32
port: 5901
Colourmap_rgba=0:8:16:24
length=8:8:8:8
11/07/2021 10:54:14 Listening for VNC connections on TCP port 5901
11/07/2021 10:54:14 Listening for VNC connections on TCP6 port 5900
11/07/2021 10:54:14 Listening for HTTP connections on TCP port 5801
11/07/2021 10:54:14 URL http://localhost:5801
11/07/2021 10:54:14 Listening for HTTP connections on TCP6 port 5800
11/07/2021 10:54:14 URL http://localhost:5800
Starting IPC connection...binded to port 13132

Waiting for a connection
11/07/2021 10:54:17 Got connection from client 192.168.1.34
11/07/2021 10:54:17 0 other clients
11/07/2021 10:54:17 Client Protocol Version 3.8
11/07/2021 10:54:17 Protocol version sent 3.8, using 3.8
11/07/2021 10:54:17 rfbProcessClientSecurityType: executing handler for type 1
11/07/2021 10:54:17 rfbProcessClientSecurityType: returning securityResult for client rfb version >= 3.8
FORTIFY: FD_ISSET: file descriptor < 0
Aborted

this is my device log,and I want use vncserver on device

I run androidvncserver on adb root. I can connect with remmina vnc plugin and TightVNC java viewer. When I close vnc client, I get the error:
16/02/2021 16:34:00 Using tight encoding for client 192.168.1.100 FORTIFY: FD_ISSET: file descriptor -1 < 0 Aborted
My system is android 10.

25/12/2020 00:34:38 httpd: get '' for 192.168.88.197
25/12/2020 00:34:38 httpd: defaulting to 'index.vnc'
25/12/2020 00:34:38 httpProcessInput: open: No such file or directory

why？

build as your guide

NDK_PROJECT_PATH=. ndk-build NDK_APPLICATION_MK=./Application.mk APP_BUILD_SCRIPT=./Android.mk

run as root on android 9 device

Initializing grabber method...
No grabber method selected, auto-detecting...
--Loading flinger native lib--
Couldnt load flinger library /data/local/tmp/libdvnc_flinger_sdk.so! Error string: (null)
--Loading gralloc native lib--
Loading lib: /data/local/tmp/libdvnc_gralloc_sdk25.so
Couldnt load library /data/local/tmp/libdvnc_gralloc_sdk25.so! Error string: (null)
--Initializing framebuffer access method--
line_lenght=4352 xres=1080, yres=2340, xresv=1080, yresv=4680, xoffs=0, yoffs=0, bpp=32
Initializing virtual keyboard and touch device...
---Initializing uinput...---
Initializing VNC server:
        width:  1080
        height: 2340
        bpp:    32
        port:   5901
        Colourmap_rgba=0:8:16:24
        length=8:8:8:8
16/04/2019 17:43:46 Listening for VNC connections on TCP port 5901
16/04/2019 17:43:46 Listening for HTTP connections on TCP port 5801
16/04/2019 17:43:46   URL http://localhost:5801
Starting IPC connection...binded to port 13132

Waiting for a connection

Hi,
I am trying to build your library and i got the following error.

`Determining if the include file vfork.h exists failed with the following output:
Change Dir: /Users/user/Projects/Moblers/MTRX_REMOTE/Software/androidvncserver-master/builds/arm64-v8a/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/make cmTC_ab8a3/fast && /Library/Developer/CommandLineTools/usr/bin/make -f CMakeFiles/cmTC_ab8a3.dir/build.make CMakeFiles/cmTC_ab8a3.dir/build
Building C object CMakeFiles/cmTC_ab8a3.dir/CheckIncludeFile.c.o
/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang --target=aarch64-none-linux-android26 --gcc-toolchain=/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64 --sysroot=/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64/sysroot -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fPIE -o CMakeFiles/cmTC_ab8a3.dir/CheckIncludeFile.c.o -c /Users/user/Projects/Moblers/MTRX_REMOTE/Software/androidvncserver-master/builds/arm64-v8a/CMakeFiles/CMakeTmp/CheckIncludeFile.c
/Users/user/Projects/Moblers/MTRX_REMOTE/Software/androidvncserver-master/builds/arm64-v8a/CMakeFiles/CMakeTmp/CheckIncludeFile.c:1:10: fatal error: 'vfork.h' file not found
#include <vfork.h>
^~~~~~~~~
1 error generated.
make[1]: *** [CMakeFiles/cmTC_ab8a3.dir/CheckIncludeFile.c.o] Error 1
make: *** [cmTC_ab8a3/fast] Error 2

Determining if the include file ws2tcpip.h exists failed with the following output:
Change Dir: /Users/user/Projects/Moblers/MTRX_REMOTE/Software/androidvncserver-master/builds/arm64-v8a/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/make cmTC_de10a/fast && /Library/Developer/CommandLineTools/usr/bin/make -f CMakeFiles/cmTC_de10a.dir/build.make CMakeFiles/cmTC_de10a.dir/build
Building C object CMakeFiles/cmTC_de10a.dir/CheckIncludeFile.c.o
/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang --target=aarch64-none-linux-android26 --gcc-toolchain=/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64 --sysroot=/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64/sysroot -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fPIE -o CMakeFiles/cmTC_de10a.dir/CheckIncludeFile.c.o -c /Users/user/Projects/Moblers/MTRX_REMOTE/Software/androidvncserver-master/builds/arm64-v8a/CMakeFiles/CMakeTmp/CheckIncludeFile.c
/Users/user/Projects/Moblers/MTRX_REMOTE/Software/androidvncserver-master/builds/arm64-v8a/CMakeFiles/CMakeTmp/CheckIncludeFile.c:1:10: fatal error: 'ws2tcpip.h' file not found
#include <ws2tcpip.h>
^~~~~~~~~~~~
1 error generated.
make[1]: *** [CMakeFiles/cmTC_de10a.dir/CheckIncludeFile.c.o] Error 1
make: *** [cmTC_de10a/fast] Error 2

Determining if the function ftime exists failed with the following output:
Change Dir: /Users/user/Projects/Moblers/MTRX_REMOTE/Software/androidvncserver-master/builds/arm64-v8a/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/make cmTC_a899f/fast && /Library/Developer/CommandLineTools/usr/bin/make -f CMakeFiles/cmTC_a899f.dir/build.make CMakeFiles/cmTC_a899f.dir/build
Building C object CMakeFiles/cmTC_a899f.dir/CheckFunctionExists.c.o
/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang --target=aarch64-none-linux-android26 --gcc-toolchain=/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64 --sysroot=/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64/sysroot -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -DCHECK_FUNCTION_EXISTS=ftime -fPIE -o CMakeFiles/cmTC_a899f.dir/CheckFunctionExists.c.o -c /usr/local/Cellar/cmake/3.18.2/share/cmake/Modules/CheckFunctionExists.c
Linking C executable cmTC_a899f
/usr/local/Cellar/cmake/3.18.2/bin/cmake -E cmake_link_script CMakeFiles/cmTC_a899f.dir/link.txt --verbose=1
/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang --target=aarch64-none-linux-android26 --gcc-toolchain=/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64 --sysroot=/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64/sysroot -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -DCHECK_FUNCTION_EXISTS=ftime -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libgcc_real.a -Wl,--exclude-libs,libatomic.a -static-libstdc++ -Wl,--build-id -Wl,--fatal-warnings -Wl,--no-undefined -Qunused-arguments -Wl,--gc-sections CMakeFiles/cmTC_a899f.dir/CheckFunctionExists.c.o -o cmTC_a899f -latomic -lm
CMakeFiles/cmTC_a899f.dir/CheckFunctionExists.c.o: In function main': /usr/local/Cellar/cmake/3.18.2/share/cmake/Modules/CheckFunctionExists.c:17: undefined reference to ftime'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[1]: *** [cmTC_a899f] Error 1
make: *** [cmTC_a899f/fast] Error 2

Determining if the OSSwapHostToBigInt64 exist failed with the following output:
Change Dir: /Users/user/Projects/Moblers/MTRX_REMOTE/Software/androidvncserver-master/builds/arm64-v8a/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/make cmTC_665fd/fast && /Library/Developer/CommandLineTools/usr/bin/make -f CMakeFiles/cmTC_665fd.dir/build.make CMakeFiles/cmTC_665fd.dir/build
Building C object CMakeFiles/cmTC_665fd.dir/CheckSymbolExists.c.o
/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang --target=aarch64-none-linux-android26 --gcc-toolchain=/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64 --sysroot=/Users/user/Library/Android/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/darwin-x86_64/sysroot -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fPIE -o CMakeFiles/cmTC_665fd.dir/CheckSymbolExists.c.o -c /Users/user/Projects/Moblers/MTRX_REMOTE/Software/androidvncserver-master/builds/arm64-v8a/CMakeFiles/CMakeTmp/CheckSymbolExists.c
/Users/user/Projects/Moblers/MTRX_REMOTE/Software/androidvncserver-master/builds/arm64-v8a/CMakeFiles/CMakeTmp/CheckSymbolExists.c:2:10: fatal error: 'libkern/OSByteOrder.h' file not found
#include <libkern/OSByteOrder.h>
^~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
make[1]: *** [CMakeFiles/cmTC_665fd.dir/CheckSymbolExists.c.o] Error 1
make: *** [cmTC_665fd/fast] Error 2

File /Users/user/Projects/Moblers/MTRX_REMOTE/Software/androidvncserver-master/builds/arm64-v8a/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
/* */
#include <libkern/OSByteOrder.h>

int main(int argc, char** argv)
{
(void)argv;
#ifndef OSSwapHostToBigInt64
return ((int*)(&OSSwapHostToBigInt64))[argc];
#else
(void)argc;
return 0;
#endif
}
`

Can you help me with it?

Hello there is any client example for this vnc server?
How can I add this lib to android studio and how to use it?

help me!

I got a crash log when I run it with common app.

setprop: failed to set property 'service.adb.tcp.port' to '-1'
sh: /sbin/adbd: not found
Initializing grabber method...
No grabber method selected, auto-detecting...
--Loading flinger native lib--
Couldnt load flinger library /data/local/tmp/libdvnc_flinger_sdk.so! Error string: (null)
--Loading gralloc native lib--
Loading lib: /data/local/tmp/libdvnc_gralloc_sdk25.so
Couldnt load library /data/local/tmp/libdvnc_gralloc_sdk25.so! Error string: (null)
--Initializing framebuffer access method--
Cannot open fb device /dev/graphics/fb0
--Initializing adb access method--
30/06/2020 22:11:20 Listening for VNC connections on TCP port 5901
30/06/2020 22:11:20 Listening for VNC connections on TCP6 port 5900
30/06/2020 22:11:20 Listening for HTTP connections on TCP port 5801
30/06/2020 22:11:20   URL http://localhost:5801
30/06/2020 22:11:20 Listening for HTTP connections on TCP6 port 5800
30/06/2020 22:11:20   URL http://localhost:5800
Initializing grabber method...
No grabber method selected, auto-detecting...
--Loading flinger native lib--
Couldnt load flinger library /data/local/tmp/libdvnc_flinger_sdk.so! Error string: (null)
--Loading gralloc native lib--
Loading lib: /data/local/tmp/libdvnc_gralloc_sdk25.so
Couldnt load library /data/local/tmp/libdvnc_gralloc_sdk25.so! Error string: (null)
--Initializing framebuffer access method--
Cannot open fb device /dev/graphics/fb0
--Initializing adb access method--
adb ERROR connecting
Initializing virtual keyboard and touch device...
---Initializing uinput...---
cannot create virtual kbd device.
Initializing VNC server:
	width:	0
	height:	0
	bpp:	0
	port:	5901
	Colourmap_rgba=0:0:0:0
	length=0:0:0:0
Unsupported pixel depth: 0
Cleaning up...

Getting error as "CANNOT LINK EXECUTABLE: empty/missing DT_HASH in "./androidvncserver" (built with --hash-style=gnu?)" while running binary.

Excuse me,
How do I modify the VNC resolution?
How do I flip the screen 90 degrees

please give us an apk