diff --git a/_exec.c b/_exec.c
deleted file mode 100644
index e66ef34..0000000
--- a/_exec.c
+++ /dev/null
@@ -1,538 +0,0 @@
-/*
- *  linux/fs/exec.c
- *
- *  (C) 1991  Linus Torvalds
- */
-
-/*
- * #!-checking implemented by tytso.
- */
-
-/*
- * Demand-loading implemented 01.12.91 - no need to read anything but
- * the header into memory. The inode of the executable is put into
- * "current->executable", and page faults do the actual loading. Clean.
- *
- * Once more I can proudly say that linux stood up to being changed: it
- * was less than 2 hours work to get demand-loading completely implemented.
- */
-
-#include <errno.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <a.out.h>
-
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <asm/segment.h>
-
-extern int sys_exit(int exit_code);
-extern int sys_close(int fd);
-
-/*
- * MAX_ARG_PAGES defines the number of pages allocated for arguments
- * and envelope for the new program. 32 should suffice, this gives
- * a maximum env+arg of 128kB !
- */
-#define MAX_ARG_PAGES 32
-
-
-int sys_uselib()
-{
-	return -ENOSYS;
-}
-
-/*
- * create_tables() parses the env- and arg-strings in new user
- * memory and creates the pointer tables from them, and puts their
- * addresses on the "stack", returning the new stack pointer value.
- */
-static unsigned long * create_tables(char * p,int argc,int envc)
-{
-	unsigned long *argv,*envp;
-	unsigned long * sp;
-
-	sp = (unsigned long *) (0xfffffffc & (unsigned long) p);
-	sp -= envc+1;
-	envp = sp;
-	sp -= argc+1;
-	argv = sp;
-	put_fs_long((unsigned long)envp,--sp);
-	put_fs_long((unsigned long)argv,--sp);
-	put_fs_long((unsigned long)argc,--sp);
-	while (argc-->0) {
-		put_fs_long((unsigned long) p,argv++);
-		while (get_fs_byte(p++)) /* nothing */ ;
-	}
-	put_fs_long(0,argv);
-	while (envc-->0) {
-		put_fs_long((unsigned long) p,envp++);
-		while (get_fs_byte(p++)) /* nothing */ ;
-	}
-	put_fs_long(0,envp);
-	return sp;
-}
-
-/*
- * count() counts the number of arguments/envelopes
- */
-static int count(char ** argv)
-{
-	int i=0;
-	char ** tmp;
-
-	if (tmp = argv)
-		while (get_fs_long((unsigned long *) (tmp++)))
-			i++;
-
-	return i;
-}
-
-/*
- * 'copy_string()' copies argument/envelope strings from user
- * memory to free pages in kernel mem. These are in a format ready
- * to be put directly into the top of new user memory.
- *
- * Modified by TYT, 11/24/91 to add the from_kmem argument, which specifies
- * whether the string and the string array are from user or kernel segments:
- * 
- * from_kmem     argv *        argv **
- *    0          user space    user space
- *    1          kernel space  user space
- *    2          kernel space  kernel space
- * 
- * We do this by playing games with the fs segment register.  Since it
- * it is expensive to load a segment register, we try to avoid calling
- * set_fs() unless we absolutely have to.
- */
-static unsigned long copy_strings(int argc,char ** argv,unsigned long *page,
-		unsigned long p, int from_kmem)
-{
-	char *tmp, *pag;
-	int len, offset = 0;
-	unsigned long old_fs, new_fs;
-
-	if (!p)
-		return 0;	/* bullet-proofing */
-	new_fs = get_ds();
-	old_fs = get_fs();
-	if (from_kmem==2)
-		set_fs(new_fs);
-	while (argc-- > 0) {
-		if (from_kmem == 1)
-			set_fs(new_fs);
-		if (!(tmp = (char *)get_fs_long(((unsigned long *)argv)+argc)))
-			panic("argc is wrong");
-		if (from_kmem == 1)
-			set_fs(old_fs);
-		len=0;		/* remember zero-padding */
-		do {
-			len++;
-		} while (get_fs_byte(tmp++));
-		if (p-len < 0) {	/* this shouldn't happen - 128kB */
-			set_fs(old_fs);
-			return 0;
-		}
-		while (len) {
-			--p; --tmp; --len;
-			if (--offset < 0) {
-				offset = p % PAGE_SIZE;
-				if (from_kmem==2)
-					set_fs(old_fs);
-				if (!(pag = (char *) page[p/PAGE_SIZE]) &&
-				    !(pag = (char *) (page[p/PAGE_SIZE] =
-				      (unsigned long *) get_free_page()))) 
-					return 0;
-				if (from_kmem==2)
-					set_fs(new_fs);
-
-			}
-			*(pag + offset) = get_fs_byte(tmp);
-		}
-	}
-	if (from_kmem==2)
-		set_fs(old_fs);
-	return p;
-}
-
-static unsigned long change_ldt(unsigned long text_size,unsigned long * page)
-{
-	unsigned long code_limit,data_limit,code_base,data_base;
-	int i;
-
-	code_limit = text_size+PAGE_SIZE -1;
-	code_limit &= 0xFFFFF000;
-	data_limit = 0x4000000;
-	code_base = get_base(current->ldt[1]);
-	data_base = code_base;
-	set_base(current->ldt[1],code_base);
-	set_limit(current->ldt[1],code_limit);
-	set_base(current->ldt[2],data_base);
-	set_limit(current->ldt[2],data_limit);
-/* make sure fs points to the NEW data segment */
-	__asm__("pushl $0x17\n\tpop %%fs"::);
-	data_base += data_limit;
-	for (i=MAX_ARG_PAGES-1 ; i>=0 ; i--) {
-		data_base -= PAGE_SIZE;
-		if (page[i])
-			put_page(page[i],data_base);
-	}
-	return data_limit;
-}
-
-/*
- * 'do_execve()' executes a new program.
- */
-int do_execve(unsigned long * eip,long tmp,char * filename,char ** argv, char ** envp)
-{
-	struct m_inode * inode;
-	struct buffer_head * bh;
-	struct exec ex;
-	unsigned long page[MAX_ARG_PAGES];
-	int i,argc,envc;
-	int e_uid, e_gid;
-	int retval;
-	int sh_bang = 0;
-	unsigned long p=PAGE_SIZE*MAX_ARG_PAGES-4;
-
-	if ((0xffff & eip[1]) != 0x000f)
-		panic("execve called from supervisor mode");
-	for (i=0 ; i<MAX_ARG_PAGES ; i++)	/* clear page-table */
-		page[i]=0;
-	if (!(inode=namei(filename)))		/* get executables inode */
-		return -ENOENT;
-	argc = count(argv);
-	envc = count(envp);
-	
-restart_interp:
-	if (!S_ISREG(inode->i_mode)) {	/* must be regular file */
-		retval = -EACCES;
-		goto exec_error2;
-	}
-	i = inode->i_mode;
-	e_uid = (i & S_ISUID) ? inode->i_uid : current->euid;
-	e_gid = (i & S_ISGID) ? inode->i_gid : current->egid;
-	if (current->euid == inode->i_uid)
-		i >>= 6;
-	else if (current->egid == inode->i_gid)
-		i >>= 3;
-	if (!(i & 1) &&
-	    !((inode->i_mode & 0111) && suser())) {
-		retval = -ENOEXEC;
-		goto exec_error2;
-	}
-	if (!(bh = bread(inode->i_dev,inode->i_zone[0]))) {
-		retval = -EACCES;
-		goto exec_error2;
-	}
-	ex = *((struct exec *) bh->b_data);	/* read exec-header */
-	if ((bh->b_data[0] == '#') && (bh->b_data[1] == '!') && (!sh_bang)) {
-		/*
-		 * This section does the #! interpretation.
-		 * Sorta complicated, but hopefully it will work.  -TYT
-		 */
-
-		char buf[1023], *cp, *interp, *i_name, *i_arg;
-		unsigned long old_fs;
-
-		strncpy(buf, bh->b_data+2, 1022);
-		brelse(bh);
-		iput(inode);
-		buf[1022] = '\0';
-		if (cp = strchr(buf, '\n')) {
-			*cp = '\0';
-			for (cp = buf; (*cp == ' ') || (*cp == '\t'); cp++);
-		}
-		if (!cp || *cp == '\0') {
-			retval = -ENOEXEC; /* No interpreter name found */
-			goto exec_error1;
-		}
-		interp = i_name = cp;
-		i_arg = 0;
-		for ( ; *cp && (*cp != ' ') && (*cp != '\t'); cp++) {
- 			if (*cp == '/')
-				i_name = cp+1;
-		}
-		if (*cp) {
-			*cp++ = '\0';
-			i_arg = cp;
-		}
-		/*
-		 * OK, we've parsed out the interpreter name and
-		 * (optional) argument.
-		 */
-		if (sh_bang++ == 0) {
-			p = copy_strings(envc, envp, page, p, 0);
-			p = copy_strings(--argc, argv+1, page, p, 0);
-		}
-		/*
-		 * Splice in (1) the interpreter's name for argv[0]
-		 *           (2) (optional) argument to interpreter
-		 *           (3) filename of shell script
-		 *
-		 * This is done in reverse order, because of how the
-		 * user environment and arguments are stored.
-		 */
-		p = copy_strings(1, &filename, page, p, 1);
-		argc++;
-		if (i_arg) {
-			p = copy_strings(1, &i_arg, page, p, 2);
-			argc++;
-		}
-		p = copy_strings(1, &i_name, page, p, 2);
-		argc++;
-		if (!p) {
-			retval = -ENOMEM;
-			goto exec_error1;
-		}
-		/*
-		 * OK, now restart the process with the interpreter's inode.
-		 */
-		old_fs = get_fs();
-		set_fs(get_ds());
-		if (!(inode=namei(interp))) { /* get executables inode */
-			set_fs(old_fs);
-			retval = -ENOENT;
-			goto exec_error1;
-		}
-		set_fs(old_fs);
-		goto restart_interp;
-	}
-	brelse(bh);
-	if (N_MAGIC(ex) != ZMAGIC || ex.a_trsize || ex.a_drsize ||
-		ex.a_text+ex.a_data+ex.a_bss>0x3000000 ||
-		inode->i_size < ex.a_text+ex.a_data+ex.a_syms+N_TXTOFF(ex)) {
-		retval = -ENOEXEC;
-		goto exec_error2;
-	}
-	if (N_TXTOFF(ex) != BLOCK_SIZE) {
-		printk("%s: N_TXTOFF != BLOCK_SIZE. See a.out.h.", filename);
-		retval = -ENOEXEC;
-		goto exec_error2;
-	}
-	if (!sh_bang) {
-		p = copy_strings(envc,envp,page,p,0);
-		p = copy_strings(argc,argv,page,p,0);
-		if (!p) {
-			retval = -ENOMEM;
-			goto exec_error2;
-		}
-	}
-/* OK, This is the point of no return */
-	if (current->executable)
-		iput(current->executable);
-	current->executable = inode;
-	for (i=0 ; i<32 ; i++)
-		current->sigaction[i].sa_handler = NULL;
-	for (i=0 ; i<NR_OPEN ; i++)
-		if ((current->close_on_exec>>i)&1)
-			sys_close(i);
-	current->close_on_exec = 0;
-	free_page_tables(get_base(current->ldt[1]),get_limit(0x0f));
-	free_page_tables(get_base(current->ldt[2]),get_limit(0x17));
-	if (last_task_used_math == current)
-		last_task_used_math = NULL;
-	current->used_math = 0;
-	p += change_ldt(ex.a_text,page)-MAX_ARG_PAGES*PAGE_SIZE;
-	p = (unsigned long) create_tables((char *)p,argc,envc);
-	current->brk = ex.a_bss +
-		(current->end_data = ex.a_data +
-		(current->end_code = ex.a_text));
-	current->start_stack = p & 0xfffff000;
-	current->euid = e_uid;
-	current->egid = e_gid;
-	i = ex.a_text+ex.a_data;
-	while (i&0xfff)
-		put_fs_byte(0,(char *) (i++));
-	eip[0] = ex.a_entry;		/* eip, magic happens :-) */
-	eip[3] = p;			/* stack pointer */
-	
-	return 0;
-exec_error2:
-	iput(inode);
-exec_error1:
-	for (i=0 ; i<MAX_ARG_PAGES ; i++)
-		free_page(page[i]);
-	return(retval);
-}
-
-int do_execve2 (unsigned long * eip,long tmp,char * filename,char ** argv, char ** envp)
-{
-	struct m_inode * inode;
-	struct buffer_head * bh;
-	struct exec ex;
-	unsigned long page[MAX_ARG_PAGES];
-	int i,argc,envc;
-	int e_uid, e_gid;
-	int retval;
-	int sh_bang = 0;
-	unsigned long p=PAGE_SIZE*MAX_ARG_PAGES-4;
-
-	if ((0xffff & eip[1]) != 0x000f)
-		panic("execve2 called from supervisor mode");
-	for (i=0 ; i<MAX_ARG_PAGES ; i++)	/* clear page-table */
-		page[i]=0;
-	if (!(inode=namei(filename)))		/* get executables inode */
-		return -ENOENT;
-	argc = count(argv);
-	envc = count(envp);
-	
-restart_interp:
-	if (!S_ISREG(inode->i_mode)) {	/* must be regular file */
-		retval = -EACCES;
-		goto exec_error2;
-	}
-	i = inode->i_mode;
-	e_uid = (i & S_ISUID) ? inode->i_uid : current->euid;
-	e_gid = (i & S_ISGID) ? inode->i_gid : current->egid;
-	if (current->euid == inode->i_uid)
-		i >>= 6;
-	else if (current->egid == inode->i_gid)
-		i >>= 3;
-	if (!(i & 1) &&
-	    !((inode->i_mode & 0111) && suser())) {
-		retval = -ENOEXEC;
-		goto exec_error2;
-	}
-	if (!(bh = bread(inode->i_dev,inode->i_zone[0]))) {
-		retval = -EACCES;
-		goto exec_error2;
-	}
-	ex = *((struct exec *) bh->b_data);	/* read exec-header */
-	if ((bh->b_data[0] == '#') && (bh->b_data[1] == '!') && (!sh_bang)) {
-		/*
-		 * This section does the #! interpretation.
-		 * Sorta complicated, but hopefully it will work.  -TYT
-		 */
-
-		char buf[1023], *cp, *interp, *i_name, *i_arg;
-		unsigned long old_fs;
-
-		strncpy(buf, bh->b_data+2, 1022);
-		brelse(bh);
-		iput(inode);
-		buf[1022] = '\0';
-		if (cp = strchr(buf, '\n')) {
-			*cp = '\0';
-			for (cp = buf; (*cp == ' ') || (*cp == '\t'); cp++);
-		}
-		if (!cp || *cp == '\0') {
-			retval = -ENOEXEC; /* No interpreter name found */
-			goto exec_error1;
-		}
-		interp = i_name = cp;
-		i_arg = 0;
-		for ( ; *cp && (*cp != ' ') && (*cp != '\t'); cp++) {
- 			if (*cp == '/')
-				i_name = cp+1;
-		}
-		if (*cp) {
-			*cp++ = '\0';
-			i_arg = cp;
-		}
-		/*
-		 * OK, we've parsed out the interpreter name and
-		 * (optional) argument.
-		 */
-		if (sh_bang++ == 0) {
-			p = copy_strings(envc, envp, page, p, 0);
-			p = copy_strings(--argc, argv+1, page, p, 0);
-		}
-		/*
-		 * Splice in (1) the interpreter's name for argv[0]
-		 *           (2) (optional) argument to interpreter
-		 *           (3) filename of shell script
-		 *
-		 * This is done in reverse order, because of how the
-		 * user environment and arguments are stored.
-		 */
-		p = copy_strings(1, &filename, page, p, 1);
-		argc++;
-		if (i_arg) {
-			p = copy_strings(1, &i_arg, page, p, 2);
-			argc++;
-		}
-		p = copy_strings(1, &i_name, page, p, 2);
-		argc++;
-		if (!p) {
-			retval = -ENOMEM;
-			goto exec_error1;
-		}
-		/*
-		 * OK, now restart the process with the interpreter's inode.
-		 */
-		old_fs = get_fs();
-		set_fs(get_ds());
-		if (!(inode=namei(interp))) { /* get executables inode */
-			set_fs(old_fs);
-			retval = -ENOENT;
-			goto exec_error1;
-		}
-		set_fs(old_fs);
-		goto restart_interp;
-	}
-	brelse(bh);
-	if (N_MAGIC(ex) != ZMAGIC || ex.a_trsize || ex.a_drsize ||ex.a_text+ex.a_data+ex.a_bss>0x3000000 ||
-		inode->i_size < ex.a_text+ex.a_data+ex.a_syms+N_TXTOFF(ex)) 
-	{
-		retval = -ENOEXEC;
-		goto exec_error2;
-	}
-	if (N_TXTOFF(ex) != BLOCK_SIZE) 
-	{
-		printk("%s: N_TXTOFF != BLOCK_SIZE. See a.out.h.", filename);
-		retval = -ENOEXEC;
-		goto exec_error2;
-	}
-	if (!sh_bang) {
-		p = copy_strings(envc,envp,page,p,0);
-		p = copy_strings(argc,argv,page,p,0);
-		if (!p) 
-		{
-			retval = -ENOMEM;
-			goto exec_error2;
-		}
-	}
-/* OK, This is the point of no return */
-	if (current->executable)
-		iput(current->executable);
-	current->executable = inode;
-	for (i=0 ; i<32 ; i++)
-		current->sigaction[i].sa_handler = NULL;
-	for (i=0 ; i<NR_OPEN ; i++)
-		if ((current->close_on_exec>>i)&1)
-			sys_close(i);
-	current->close_on_exec = 0;
-	free_page_tables(get_base(current->ldt[1]),get_limit(0x0f));
-	free_page_tables(get_base(current->ldt[2]),get_limit(0x17));
-	if (last_task_used_math == current)
-		last_task_used_math = NULL;
-	current->used_math = 0;
-	p += change_ldt(ex.a_text,page)-MAX_ARG_PAGES*PAGE_SIZE;
-	p = (unsigned long) create_tables((char *)p,argc,envc);
-	current->brk = ex.a_bss +
-		(current->end_data = ex.a_data +
-		(current->end_code = ex.a_text));
-	current->start_stack = p & 0xfffff000;
-	current->euid = e_uid;
-	current->egid = e_gid;
-	i = ex.a_text+ex.a_data;
-	while (i&0xfff)
-		put_fs_byte(0,(char *) (i++));
-	eip[0] = ex.a_entry;		/* eip, magic happens :-) */
-	eip[3] = p;			/* stack pointer */
-	
-	char* tmp_buf;
-	for(tmp_buf=0;tmp_buf<=current->brk;tmp_buf+=4096)
-		do_no_page2(4, current->start_code+tmp_buf);
-		
-	return 0;
-exec_error2:
-	iput(inode);
-exec_error1:
-	for (i=0 ; i<MAX_ARG_PAGES ; i++)
-		free_page(page[i]);
-	return(retval);
-}
\ No newline at end of file