binfmt-java 1-1

Based on binfmt-wine PKGBUILD from AUR, basically copying the files from
https://wiki.archlinux.org/index.php/Binfmt_misc_for_Java straight over.

10 files changed, 336 insertions, 22 deletions

diff --git a/.SRCINFO b/.SRCINFO
index f51d182d2052..bb20d946bb9d 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,15 +1,27 @@
-pkgbase = binfmt-wine
-	pkgdesc = register wine interpreter
-	pkgver = 1.2
+# Generated by mksrcinfo v8
+# Wed Aug 24 11:03:22 UTC 2016
+pkgbase = binfmt-java
+	pkgdesc = register Java runners
+	pkgver = 1
 	pkgrel = 1
-	url = http://man7.org/linux/man-pages/man8/systemd-binfmt.8.html
-	install = binfmt-wine.install
+	url = https://wiki.archlinux.org/index.php/Binfmt_misc_for_Java
+	install = binfmt-java.install
 	arch = any
-	license = GPL
-	depends = wine
+	license = FDL1.3
+	depends = java-runtime
 	depends = systemd
-	source = wine.conf
-	md5sums = 599bc907c9ae3fa371e8032b6db735dc
+	source = Applet.conf
+	source = ExecutableJAR.conf
+	source = Java.conf
+	source = jarwrapper
+	source = javawrapper
+	source = javaclassname.c
+	md5sums = a9385f6b3eb01b7433fef2741f1ce4c2
+	md5sums = f2244ff951ce7318d0d6a94e3fdfa001
+	md5sums = c05fb16044abfded174d8a4b17ce7d7c
+	md5sums = f5e6a48ef18b92b23a59bc51f60e310f
+	md5sums = 87f5c8c8dc4705493221be97654f2e13
+	md5sums = c6ec75405623591f8c0dead3fa3c3595
 
-pkgname = binfmt-wine
+pkgname = binfmt-java
 
diff --git a/Applet.conf b/Applet.conf
new file mode 100644
index 000000000000..2d6073a86e0b
--- /dev/null
+++ b/Applet.conf
@@ -0,0 +1 @@
+:Applet:E::html::/opt/java/bin/appletviewer:
diff --git a/ExecutableJAR.conf b/ExecutableJAR.conf
new file mode 100644
index 000000000000..7afcdcf0b22d
--- /dev/null
+++ b/ExecutableJAR.conf
@@ -0,0 +1 @@
+:ExecutableJAR:E::jar::/usr/local/bin/jarwrapper:
diff --git a/Java.conf b/Java.conf
new file mode 100644
index 000000000000..4656b6403a2c
--- /dev/null
+++ b/Java.conf
@@ -0,0 +1 @@
+:Java:M::\xca\xfe\xba\xbe::/usr/local/bin/javawrapper:
diff --git a/PKGBUILD b/PKGBUILD
index 46137377c84a..08601551cdbe 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,16 +1,29 @@
-pkgname=binfmt-wine
-pkgver=1.2
+pkgname=binfmt-java
+pkgver=1
 pkgrel=1
-pkgdesc="register wine interpreter"
+pkgdesc='register Java runners'
 arch=(any)
-url="http://man7.org/linux/man-pages/man8/systemd-binfmt.8.html"
-license=(GPL)
-depends=('wine' 'systemd')
-source=("wine.conf")
-md5sums=('599bc907c9ae3fa371e8032b6db735dc')
+url='https://wiki.archlinux.org/index.php/Binfmt_misc_for_Java'
+license=('FDL1.3')
+depends=('java-runtime' 'systemd')
+source=('Applet.conf' 'ExecutableJAR.conf' 'Java.conf'
+        'jarwrapper' 'javawrapper' 'javaclassname.c')
+md5sums=('a9385f6b3eb01b7433fef2741f1ce4c2'
+         'f2244ff951ce7318d0d6a94e3fdfa001'
+         'c05fb16044abfded174d8a4b17ce7d7c'
+         'f5e6a48ef18b92b23a59bc51f60e310f'
+         '87f5c8c8dc4705493221be97654f2e13'
+         'c6ec75405623591f8c0dead3fa3c3595')
 install=$pkgname.install
 
-package () {
+build (){
   cd "$srcdir"
-  install -Dm 644 wine.conf "$pkgdir/usr/lib/binfmt.d/wine.conf"
+  gcc $CFLAGS $CPPFLAGS -o javaclassname javaclassname.c
+}
+
+package (){
+  cd "$srcdir"
+  install -d "$pkgdir/usr/lib/binfmt.d" "$pkgdir/usr/local/bin"
+  install -m644 'Applet.conf' 'ExecutableJAR.conf' 'Java.conf' "$pkgdir/usr/lib/binfmt.d/"
+  install -m755 'jarwrapper' 'javawrapper' 'javaclassname' "$pkgdir/usr/local/bin/"
 }
diff --git a/binfmt-wine.install b/binfmt-java.install
index 7e3da32454e6..7e3da32454e6 100644
--- a/binfmt-wine.install
+++ b/binfmt-java.install
diff --git a/jarwrapper b/jarwrapper
new file mode 100644
index 000000000000..ae544c687ef9
--- /dev/null
+++ b/jarwrapper
@@ -0,0 +1,6 @@
+#!/bin/bash
+# /usr/local/bin/jarwrapper - the wrapper for binfmt_misc/jar
+
+# set path to java using JAVA_HOME if available, otherwise assume it's on the PATH
+JAVA_PATH=${JAVA_HOME:+$JAVA_HOME/jre/bin/}java
+$JAVA_PATH -jar "$@"
diff --git a/javaclassname.c b/javaclassname.c
new file mode 100644
index 000000000000..51f368609b41
--- /dev/null
+++ b/javaclassname.c
@@ -0,0 +1,194 @@
+/* javaclassname.c
+ *
+ * Extracts the class name from a Java class file; intended for use in a Java
+ * wrapper of the type supported by the binfmt_misc option in the Linux kernel.
+ *
+ * Copyright (C) 1999 Colin J. Watson <cjw44@cam.ac.uk>.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <sys/types.h>
+
+/* From Sun's Java VM Specification, as tag entries in the constant pool. */
+
+#define CP_UTF8 1
+#define CP_INTEGER 3
+#define CP_FLOAT 4
+#define CP_LONG 5
+#define CP_DOUBLE 6
+#define CP_CLASS 7
+#define CP_STRING 8
+#define CP_FIELDREF 9
+#define CP_METHODREF 10
+#define CP_INTERFACEMETHODREF 11
+#define CP_NAMEANDTYPE 12
+
+/* Define some commonly used error messages */
+
+#define seek_error() error("%s: Cannot seek\n", program)
+#define corrupt_error() error("%s: Class file corrupt\n", program)
+#define eof_error() error("%s: Unexpected end of file\n", program)
+#define utf8_error() error("%s: Only ASCII 1-255 supported\n", program);
+
+char *program;
+
+long *pool;
+
+u_int8_t read_8(FILE *classfile);
+u_int16_t read_16(FILE *classfile);
+void skip_constant(FILE *classfile, u_int16_t *cur);
+void error(const char *format, ...);
+int main(int argc, char **argv);
+
+/* Reads in an unsigned 8-bit integer. */
+u_int8_t read_8(FILE *classfile)
+{
+	int b = fgetc(classfile);
+	if(b == EOF)
+		eof_error();
+	return (u_int8_t)b;
+}
+
+/* Reads in an unsigned 16-bit integer. */
+u_int16_t read_16(FILE *classfile)
+{
+	int b1, b2;
+	b1 = fgetc(classfile);
+	if(b1 == EOF)
+		eof_error();
+	b2 = fgetc(classfile);
+	if(b2 == EOF)
+		eof_error();
+	return (u_int16_t)((b1 << 8) | b2);
+}
+
+/* Reads in a value from the constant pool. */
+void skip_constant(FILE *classfile, u_int16_t *cur)
+{
+	u_int16_t len;
+	int seekerr = 1;
+	pool[*cur] = ftell(classfile);
+	switch(read_8(classfile))
+	{
+	case CP_UTF8:
+		len = read_16(classfile);
+		seekerr = fseek(classfile, len, SEEK_CUR);
+		break;
+	case CP_CLASS:
+	case CP_STRING:
+		seekerr = fseek(classfile, 2, SEEK_CUR);
+		break;
+	case CP_INTEGER:
+	case CP_FLOAT:
+	case CP_FIELDREF:
+	case CP_METHODREF:
+	case CP_INTERFACEMETHODREF:
+	case CP_NAMEANDTYPE:
+		seekerr = fseek(classfile, 4, SEEK_CUR);
+		break;
+	case CP_LONG:
+	case CP_DOUBLE:
+		seekerr = fseek(classfile, 8, SEEK_CUR);
+		++(*cur);
+		break;
+	default:
+		corrupt_error();
+	}
+	if(seekerr)
+		seek_error();
+}
+
+void error(const char *format, ...)
+{
+	va_list ap;
+	va_start(ap, format);
+	vfprintf(stderr, format, ap);
+	va_end(ap);
+	exit(1);
+}
+
+int main(int argc, char **argv)
+{
+	FILE *classfile;
+	u_int16_t cp_count, i, this_class, classinfo_ptr;
+	u_int8_t length;
+
+	program = argv[0];
+
+	if(!argv[1])
+		error("%s: Missing input file\n", program);
+	classfile = fopen(argv[1], "rb");
+	if(!classfile)
+		error("%s: Error opening %s\n", program, argv[1]);
+
+	if(fseek(classfile, 8, SEEK_SET))  /* skip magic and version numbers */
+		seek_error();
+	cp_count = read_16(classfile);
+	pool = calloc(cp_count, sizeof(long));
+	if(!pool)
+		error("%s: Out of memory for constant pool\n", program);
+
+	for(i = 1; i < cp_count; ++i)
+		skip_constant(classfile, &i);
+	if(fseek(classfile, 2, SEEK_CUR))	/* skip access flags */
+		seek_error();
+
+	this_class = read_16(classfile);
+	if(this_class < 1 || this_class >= cp_count)
+		corrupt_error();
+	if(!pool[this_class] || pool[this_class] == -1)
+		corrupt_error();
+	if(fseek(classfile, pool[this_class] + 1, SEEK_SET))
+		seek_error();
+
+	classinfo_ptr = read_16(classfile);
+	if(classinfo_ptr < 1 || classinfo_ptr >= cp_count)
+		corrupt_error();
+	if(!pool[classinfo_ptr] || pool[classinfo_ptr] == -1)
+		corrupt_error();
+	if(fseek(classfile, pool[classinfo_ptr] + 1, SEEK_SET))
+		seek_error();
+
+	length = read_16(classfile);
+	for(i = 0; i < length; ++i)
+	{
+		u_int8_t x = read_8(classfile);
+		if((x & 0x80) || !x)
+		{
+			if((x & 0xE0) == 0xC0)
+			{
+				u_int8_t y = read_8(classfile);
+				if((y & 0xC0) == 0x80)
+				{
+					int c = ((x & 0x1f) << 6) + (y & 0x3f);
+					if(c) putchar(c);
+					else utf8_error();
+				}
+				else utf8_error();
+			}
+			else utf8_error();
+		}
+		else if(x == '/') putchar('.');
+		else putchar(x);
+	}
+	putchar('\n');
+	free(pool);
+	fclose(classfile);
+	return 0;
+}
diff --git a/javawrapper b/javawrapper
new file mode 100644
index 000000000000..bfb67faec7e9
--- /dev/null
+++ b/javawrapper
@@ -0,0 +1,88 @@
+#!/bin/bash
+# /usr/local/bin/javawrapper - the wrapper for binfmt_misc/java
+
+if [ -z "$1" ]; then
+	exec 1>&2
+	echo Usage: $0 class-file
+	exit 1
+fi
+
+CLASS=$1
+FQCLASS=`/usr/local/bin/javaclassname $1`
+FQCLASSN=`echo $FQCLASS | sed -e 's/^.*\.\([^.]*\)$/\1/'`
+FQCLASSP=`echo $FQCLASS | sed -e 's-\.-/-g' -e 's-^[^/]*$--' -e 's-/[^/]*$--'`
+
+# for example:
+# CLASS=Test.class
+# FQCLASS=foo.bar.Test
+# FQCLASSN=Test
+# FQCLASSP=foo/bar
+
+unset CLASSBASE
+
+declare -i LINKLEVEL=0
+
+while :; do
+	if [ "`basename $CLASS .class`" == "$FQCLASSN" ]; then
+		# See if this directory works straight off
+		cd -L `dirname $CLASS`
+		CLASSDIR=$PWD
+		cd $OLDPWD
+		if echo $CLASSDIR | grep -q "$FQCLASSP$"; then
+			CLASSBASE=`echo $CLASSDIR | sed -e "s.$FQCLASSP$.."`
+			break;
+		fi
+		# Try dereferencing the directory name
+		cd -P `dirname $CLASS`
+		CLASSDIR=$PWD
+		cd $OLDPWD
+		if echo $CLASSDIR | grep -q "$FQCLASSP$"; then
+			CLASSBASE=`echo $CLASSDIR | sed -e "s.$FQCLASSP$.."`
+			break;
+		fi
+		# If no other possible filename exists
+		if [ ! -L $CLASS ]; then
+			exec 1>&2
+			echo $0:
+			echo "  $CLASS should be in a" \
+			     "directory tree called $FQCLASSP"
+			exit 1
+		fi
+	fi
+	if [ ! -L $CLASS ]; then break; fi
+	# Go down one more level of symbolic links
+	let LINKLEVEL+=1
+	if [ $LINKLEVEL -gt 5 ]; then
+		exec 1>&2
+		echo $0:
+		echo "  Too many symbolic links encountered"
+		exit 1
+	fi
+	CLASS=`ls --color=no -l $CLASS | sed -e 's/^.* \([^ ]*\)$/\1/'`
+done
+
+if [ -z "$CLASSBASE" ]; then
+	if [ -z "$FQCLASSP" ]; then
+		GOODNAME=$FQCLASSN.class
+	else
+		GOODNAME=$FQCLASSP/$FQCLASSN.class
+	fi
+	exec 1>&2
+	echo $0:
+	echo "  $FQCLASS should be in a file called $GOODNAME"
+	exit 1
+fi
+
+if ! echo $CLASSPATH | grep -q "^\(.*:\)*$CLASSBASE\(:.*\)*"; then
+	# class is not in CLASSPATH, so prepend dir of class to CLASSPATH
+	if [ -z "${CLASSPATH}" ] ; then
+		export CLASSPATH=$CLASSBASE
+	else
+		export CLASSPATH=$CLASSBASE:$CLASSPATH
+	fi
+fi
+
+shift
+# set path to java using JAVA_HOME if available, otherwise assume it's on the PATH
+JAVA_PATH=${JAVA_HOME:+$JAVA_HOME/jre/bin/}java
+$JAVA_PATH $FQCLASS "$@"
diff --git a/wine.conf b/wine.conf
deleted file mode 100644
index 4d4307336587..000000000000
--- a/wine.conf
+++ /dev/null
@@ -1,2 +0,0 @@
-# Start WINE on Windows executables
-:DOSWin:M::MZ::/usr/bin/wine: