From 11f339a3688a8041854a0870ecb7f954ffd4ab86 Mon Sep 17 00:00:00 2001
From: Andreas Baumann <mail@andreasbaumann.cc>
Date: Thu, 3 Aug 2023 15:06:57 +0200
Subject: added slock (not unlocking the screen yet)

---
 README                        |  4 +++-
 configs/versions              |  1 +
 patches/slock-no-xrandr.patch | 26 ++++++++++++++++++++++++++
 patches/slock-tcc.patch       | 14 ++++++++++++++
 scripts/build.sh              | 17 +++++++++++++++++
 scripts/download.sh           |  7 +++++++
 6 files changed, 68 insertions(+), 1 deletion(-)
 create mode 100644 patches/slock-no-xrandr.patch
 create mode 100644 patches/slock-tcc.patch

diff --git a/README b/README
index f3f3350..84f35ea 100644
--- a/README
+++ b/README
@@ -515,7 +515,9 @@ Call Trace:
 - depth 16 -> 24 on Xfbdev?
 - meh segfaults with the test.qoi image from the meh branch in qemu, works
   on the host
-    
+- slock runs but cannot unlock the screen (shadow issue?), also we need
+  a hard-coded nobody and nogroup user and group
+      
 tools
 -----
 
diff --git a/configs/versions b/configs/versions
index f48822c..da69028 100644
--- a/configs/versions
+++ b/configs/versions
@@ -29,6 +29,7 @@ RXVT_VERSION="2.6.4"
 XHOST_VERSION="1.0.8"
 XAUTH_VERSION="1.0.9"
 MEH_VERSION="041539e"
+SLOCK_VERSION="4f04554"
 LUA_VERSION="5.1.5"
 NOTION_VERSION="435631f"
 WORDGRINDER_VERSION="0.8"
diff --git a/patches/slock-no-xrandr.patch b/patches/slock-no-xrandr.patch
new file mode 100644
index 0000000..d723604
--- /dev/null
+++ b/patches/slock-no-xrandr.patch
@@ -0,0 +1,26 @@
+diff -rauN slock/slock.c slock-no-xrandr-patch/slock.c
+--- slock/slock.c	2023-08-03 14:54:34.474038914 +0200
++++ slock-no-xrandr-patch/slock.c	2023-08-03 14:57:25.574289865 +0200
+@@ -272,8 +272,10 @@
+ 		/* input is grabbed: we can lock the screen */
+ 		if (ptgrab == GrabSuccess && kbgrab == GrabSuccess) {
+ 			XMapRaised(dpy, lock->win);
++#ifdef HAVE_XRANDR
+ 			if (rr->active)
+ 				XRRSelectInput(dpy, lock->win, RRScreenChangeNotifyMask);
++#endif
+ 
+ 			XSelectInput(dpy, lock->root, SubstructureNotifyMask);
+ 			return lock;
+@@ -356,7 +358,11 @@
+ 		die("slock: setuid: %s\n", strerror(errno));
+ 
+ 	/* check for Xrandr support */
++#ifdef HAVE_XRANDR
+ 	rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase);
++#else
++	rr.active = 0;
++#endif
+ 
+ 	/* get number of screens in display "dpy" and blank them */
+ 	nscreens = ScreenCount(dpy);
diff --git a/patches/slock-tcc.patch b/patches/slock-tcc.patch
new file mode 100644
index 0000000..59b1a0a
--- /dev/null
+++ b/patches/slock-tcc.patch
@@ -0,0 +1,14 @@
+diff -rauN slock/slock.c slock-tcc-patch/slock.c
+--- slock/slock.c	2023-08-03 14:54:34.474038914 +0200
++++ slock-tcc-patch/slock.c	2023-08-03 14:54:56.284070903 +0200
+@@ -348,8 +348,10 @@
+ 		die("slock: cannot open display\n");
+ 
+ 	/* drop privileges */
++#ifdef HAVE_SETGROUPS
+ 	if (setgroups(0, NULL) < 0)
+ 		die("slock: setgroups: %s\n", strerror(errno));
++#endif
+ 	if (setgid(dgid) < 0)
+ 		die("slock: setgid: %s\n", strerror(errno));
+ 	if (setuid(duid) < 0)
diff --git a/scripts/build.sh b/scripts/build.sh
index 18e20a0..d8a1bdd 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -552,6 +552,23 @@ else
 	echo "stage1 meh exists"
 fi
 
+if [ ! -f "${BASE}/build/stage1/bin/slock" ]; then
+	rm -rf "slock-${SLOCK_VERSION}"
+	tar xf "${BASE}/downloads/slock-${SLOCK_VERSION}.tar.gz"
+	cd "slock-${SLOCK_VERSION}"
+	cp config.def.h config.h
+	patch -Np1 < "${BASE}/patches/slock-tcc.patch"
+	patch -Np1 < "${BASE}/patches/slock-no-xrandr.patch"
+	make -j$CPUS CC="${BASE}/build/stage1/bin/i386-tcc" \
+		VERSION="${SLOCK_VERSION}" \
+		CFLAGS="-Os -DVERSION= -I${BASE}/build/stage1/include" \
+		LDFLAGS="-static ${BASE}/build/stage1/lib/libXext.a ${BASE}/build/stage1/lib/libX11.a"
+	make -j$CPUS DESTDIR="${BASE}/build/stage1" PREFIX="" install
+	cd ..
+else
+	echo "stage1 slock exists"
+fi
+
 if [ ! -f "${BASE}/build/stage1/bin/lua" ]; then
 	rm -rf "lua-${LUA_VERSION}"
 	tar xf "${BASE}/downloads/lua-${LUA_VERSION}.tar.gz"
diff --git a/scripts/download.sh b/scripts/download.sh
index e288445..0e4259c 100755
--- a/scripts/download.sh
+++ b/scripts/download.sh
@@ -165,6 +165,13 @@ if [ ! -f "${BASE}/downloads/meh-${MEH_VERSION}.tar.gz" ]; then
 	rm -rf "meh-${MEH_VERSION}"
 fi
 
+if [ ! -f "${BASE}/downloads/slock-${SLOCK_VERSION}.tar.gz" ]; then
+	git clone git://git.suckless.org/slock "slock-${SLOCK_VERSION}"
+	git -C "slock-${SLOCK_VERSION}" checkout "${SLOCK_VERSION}"
+	tar zcf "${BASE}/downloads/slock-${SLOCK_VERSION}.tar.gz" "slock-${SLOCK_VERSION}"
+	rm -rf "slock-${SLOCK_VERSION}"
+fi
+
 if [ ! -f "${BASE}/downloads/bdftopcf-${BDFTOPCF_VERSION}.tar.gz" ]; then
 	wget -O "${BASE}/downloads/bdftopcf-${BDFTOPCF_VERSION}.tar.gz" \
 		"https://www.x.org/archive/individual/app/bdftopcf-${BDFTOPCF_VERSION}.tar.gz"
-- 
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