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static linking of wslbridge-backend to make it work in all distros (#156),

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own (partial) implementation of getpwuid to this aim
This commit is contained in:
mintty 2019-05-01 11:01:10 +02:00
parent 3d4055a63b
commit f0a3449ada
2 changed files with 67 additions and 5 deletions
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11
makefile
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@ -8,10 +8,10 @@
# wsltty release
ver=3.0.0
ver=3.0.0.2
# wsltty appx release - must have 4 parts!
verx=3.0.0.0
verx=3.0.0.2
# Windows SDK version for appx
WINSDKKEY=/HKEY_LOCAL_MACHINE/SOFTWARE/WOW6432Node/Microsoft/.NET Framework Platform/Setup/Multi-Targeting Pack
@ -121,20 +121,21 @@ wslbridge-package:
wslbridge-source: wslbridge-$(wslbridge-commit).zip
unzip -o wslbridge-$(wslbridge-commit).zip
cd wslbridge-$(wslbridge-commit)/backend; patch -p1 < ../../wslbridge-backend-static.patch
tr -d '\015' < wslbridge-$(wslbridge-commit)/LICENSE.txt > LICENSE.wslbridge
wslbridge-$(wslbridge-commit).zip:
$(wgeto) https://github.com/rprichard/wslbridge/archive/$(wslbridge-commit).zip -o wslbridge-$(wslbridge-commit).zip
wslbridge-frontend: wslbridge-source
echo ------------- Compiling wslbridge frontend
cd wslbridge-$(wslbridge-commit)/frontend; make
strip wslbridge-$(wslbridge-commit)/out/wslbridge.exe
mkdir -p bin
cp wslbridge-$(wslbridge-commit)/out/wslbridge.exe bin/
wslbridge-backend: wslbridge-source bin/wslbridge-backend
bin/wslbridge-backend:
wslbridge-backend: wslbridge-source
echo ------------- Compiling wslbridge backend
cd wslbridge-$(wslbridge-commit)/backend; if uname -m | grep x86_64; then cmd /C wsl make; else wslbridge make; fi
mkdir -p bin
cp wslbridge-$(wslbridge-commit)/out/wslbridge-backend bin/

61
wslbridge-backend-static.patch Normal file
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@ -0,0 +1,61 @@
diff -rup orig/Makefile new/Makefile
--- orig/Makefile 2018-05-06 01:12:36.000000000 +0200
+++ new/Makefile 2019-05-01 08:16:53.647051200 +0200
@@ -5,7 +5,7 @@ all : ../out/wslbridge-backend
../out/wslbridge-backend : wslbridge-backend.cc ../common/SocketIo.cc ../common/SocketIo.h ../VERSION.txt Makefile
mkdir -p ../out
$(CXX) -std=c++11 -fno-exceptions \
- -static-libgcc -static-libstdc++ \
+ -static -static-libgcc -static-libstdc++ \
-D_GNU_SOURCE \
-DWSLBRIDGE_VERSION=$(shell cat ../VERSION.txt) \
-Wall -O2 $< ../common/SocketIo.cc -o $@ -lutil -pthread
diff -rup orig/wslbridge-backend.cc new/wslbridge-backend.cc
--- orig/wslbridge-backend.cc 2018-05-06 01:12:36.000000000 +0200
+++ new/wslbridge-backend.cc 2019-05-01 08:19:12.799688500 +0200
@@ -494,6 +494,45 @@ static void frontendVersionCheck(const c
} // namespace
+#define getpwuid _getpwuid
+
+struct passwd * getpwuid(int uid)
+{
+ FILE * pwd = fopen("/etc/passwd", "r");
+ if (pwd) {
+ char pwbuf[222];
+ static struct passwd pw;
+ pw.pw_shell = 0;
+ while (fgets(pwbuf, sizeof pwbuf, pwd)) {
+ char * sep = strchr(pwbuf, ':');
+ if (!sep) continue;
+ sep = strchr(++sep, ':');
+ if (!sep) continue;
+ int pwuid;
+ if (sscanf(sep, ":%d:", &pwuid) == 1 && pwuid == uid) {
+ // pw_name:pw_passwd:pw_uid:pw_gid:pw_gecos:pw_dir:pw_shell
+ // ^
+ sep = strchr(++sep, ':');
+ if (!sep) continue;
+ sep = strchr(++sep, ':');
+ if (!sep) continue;
+ sep = strchr(++sep, ':');
+ if (!sep) continue;
+ sep = strchr(++sep, ':');
+ if (!sep) continue;
+ pw.pw_shell = ++sep;
+ sep = strchr(++sep, '\n');
+ if (sep)
+ *sep = 0;
+ break;
+ }
+ }
+ fclose(pwd);
+ return &pw;
+ }
+ return 0;
+}
+
int main(int argc, char *argv[]) {
// If the backend crashes, it prints a message to its stderr, which is a