patch-2.3.9 linux/fs/binfmt_java.c

• Lines: 197
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.8/linux/fs/binfmt_java.c
• Orig date: Wed Jun 2 13:49:58 1999

diff -u --recursive --new-file v2.3.8/linux/fs/binfmt_java.c linux/fs/binfmt_java.c
@@ -1,196 +0,0 @@
-/*
- *  linux/fs/binfmt_java.c
- *
- *  Copyright (C) 1996  Brian A. Lantz
- *  derived from binfmt_script.c
- *
- *  Simplified and modified to support binary java interpreters
- *  by Tom May <ftom@netcom.com>.
- */
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/malloc.h>
-#include <linux/binfmts.h>
-#include <linux/init.h>
-
-#define _PATH_JAVA	"/usr/bin/java"
-#define _PATH_APPLET	"/usr/bin/appletviewer"
-
-/*  These paths can be modified with sysctl().  */
-
-char binfmt_java_interpreter[65] = _PATH_JAVA;
-char binfmt_java_appletviewer[65] = _PATH_APPLET;
-
-static int do_load_java(struct linux_binprm *bprm,struct pt_regs *regs)
-{
-	char *i_name;
-	int len;
-	int retval;
-	struct dentry * dentry;
-	unsigned char *ucp = (unsigned char *) bprm->buf;
-
-	if ((ucp[0] != 0xca) || (ucp[1] != 0xfe) || (ucp[2] != 0xba) || (ucp[3] != 0xbe)) 
-		return -ENOEXEC;
-
-	/*
-	 * Fail if we're called recursively, e.g., the Java interpreter
-	 * is a java binary.
-	 */
-
-	if (bprm->java)
-		return -ENOEXEC;
-
-	bprm->java = 1;
-
-	dput(bprm->dentry);
-	bprm->dentry = NULL;
-
-	/*
-	 * Set args: [0] the name of the java interpreter
-	 *           [1] name of java class to execute, which is the
-	 *		 filename without the path and without trailing
-	 *		 ".class".  Note that the interpreter will use
-	 *		 its own way to found the class file (typically using
-	 *		 environment variable CLASSPATH), and may in fact
-	 *		 execute a different file from the one we want.
-	 *
-	 * This is done in reverse order, because of how the
-	 * user environment and arguments are stored.
-	 */
-	remove_arg_zero(bprm);
-	len = strlen (bprm->filename);
-	if (len >= 6 && !strcmp (bprm->filename + len - 6, ".class"))
-		bprm->filename[len - 6] = 0;
-	if ((i_name = strrchr (bprm->filename, '/')) != NULL)
-		i_name++;
-	else
-		i_name = bprm->filename;
-
-	retval = copy_strings_kernel(1, &i_name, bprm); 
-	if (retval < 0) 
-		return retval; 
-	bprm->argc++;
-
-	i_name = binfmt_java_interpreter;
-	retval = copy_strings_kernel(1, &i_name, bprm); 
-	if (retval < 0) 
-		return retval; 
-	bprm->argc++;
-
-	/*
-	 * OK, now restart the process with the interpreter's dentry.
-	 */
-	bprm->filename = binfmt_java_interpreter;
-	dentry = open_namei(binfmt_java_interpreter, 0, 0);
-	retval = PTR_ERR(dentry);
-	if (IS_ERR(dentry))
-		return retval;
-
-	bprm->dentry = dentry;
-	retval = prepare_binprm(bprm);
-	if (retval < 0)
-		return retval;
-
-	return search_binary_handler(bprm,regs);
-}
-
-static int do_load_applet(struct linux_binprm *bprm,struct pt_regs *regs)
-{
-	char *i_name;
-	struct dentry * dentry;
-	int retval;
-
-	if (strncmp (bprm->buf, "<!--applet", 10))
-		return -ENOEXEC;
-
-	dput(bprm->dentry);
-	bprm->dentry = NULL;
-
-	/*
-	 * Set args: [0] the name of the appletviewer
-	 *           [1] filename of html file
-	 *
-	 * This is done in reverse order, because of how the
-	 * user environment and arguments are stored.
-	 */
-	remove_arg_zero(bprm);
-	i_name = bprm->filename;
-	retval = copy_strings_kernel(1, &i_name, bprm);
-	if (retval < 0) return retval; 
-	bprm->argc++;
-
-	i_name = binfmt_java_appletviewer;
-	retval = copy_strings_kernel(1, &i_name, bprm);
-	if (retval < 0) return retval; 
-	bprm->argc++;
-
-	/*
-	 * OK, now restart the process with the interpreter's dentry.
-	 */
-	bprm->filename = binfmt_java_appletviewer;
-	dentry = open_namei(binfmt_java_appletviewer, 0, 0);
-	retval = PTR_ERR(dentry);
-	if (IS_ERR(dentry))
-		return retval;
-
-	bprm->dentry = dentry;
-	retval = prepare_binprm(bprm);
-	if (retval < 0)
-		return retval;
-
-	return search_binary_handler(bprm,regs);
-}
-
-static int load_java(struct linux_binprm *bprm,struct pt_regs *regs)
-{
-	int retval;
-	MOD_INC_USE_COUNT;
-	retval = do_load_java(bprm,regs);
-	MOD_DEC_USE_COUNT;
-	return retval;
-}
-
-static struct linux_binfmt java_format = {
-#ifndef MODULE
-	NULL, 0, load_java, NULL, NULL
-#else
-	NULL, &__this_module, load_java, NULL, NULL
-#endif
-};
-
-static int load_applet(struct linux_binprm *bprm,struct pt_regs *regs)
-{
-	int retval;
-	MOD_INC_USE_COUNT;
-	retval = do_load_applet(bprm,regs);
-	MOD_DEC_USE_COUNT;
-	return retval;
-}
-
-static struct linux_binfmt applet_format = {
-#ifndef MODULE
-	NULL, 0, load_applet, NULL, NULL
-#else
-	NULL, &__this_module, load_applet, NULL, NULL
-#endif
-};
-
-int __init init_java_binfmt(void)
-{
-	register_binfmt(&java_format);
-	return register_binfmt(&applet_format);
-}
-
-#ifdef MODULE
-int init_module(void)
-{
-	return init_java_binfmt();
-}
-
-void cleanup_module( void) {
-	unregister_binfmt(&java_format);
-	unregister_binfmt(&applet_format);
-}
-#endif