/*-
 * Copyright (c) 1993, David Greenman
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD: src/sys/sys/imgact.h,v 1.22.2.2 2001/12/22 01:21:44 jwd Exp $
 */

#ifndef _SYS_IMGACT_H_
#define _SYS_IMGACT_H_

#include <sys/mount.h>
#include <cpu/lwbuf.h>

#define MAXSHELLCMDLEN  128

struct image_args {
        char *buf;              /* pointer to string buffer */
        char *begin_argv;       /* beginning of argv in buf */
        char *begin_envv;       /* beginning of envv in buf */
        char *endp;             /* current `end' pointer of arg & env strings */
        char *fname;            /* file name of the executable */
        int space;              /* space left in arg & env buffer */
        int argc;               /* count of argument strings */
        int envc;               /* count of environment strings */
};

struct image_params {
        struct proc *proc;      /* our process struct */
        struct image_args *args;        /* syscall arguments */
        struct vnode *vp;       /* pointer to vnode of file to exec */
        struct vattr_lite *lvap; /* attributes of file */
        const char *image_header; /* head of file to exec */
        unsigned long entry_addr; /* entry address of target executable */
        char resident;          /* flag - resident image */
        char vmspace_destroyed; /* flag - we've blown away original vm space */
        char interpreted;       /* flag - this executable is interpreted */
        char interpreter_name[MAXSHELLCMDLEN]; /* name of the interpreter */
        void *auxargs;          /* ELF Auxinfo structure pointer */
        struct lwbuf *firstpage;        /* first page that we mapped */
        struct lwbuf firstpage_cache;
        unsigned long ps_strings; /* PS_STRINGS for BSD/OS binaries */
        char *execpath;
        unsigned long execpathp;
        char *freepath;
};

#ifdef _KERNEL
struct vmspace;

int     exec_resident_imgact (struct image_params *);
int     exec_check_permissions (struct image_params *, struct mount *);
int     exec_new_vmspace (struct image_params *, struct vmspace *vmres);
int     exec_shell_imgact (struct image_params *);
#endif

#endif /* !_SYS_IMGACT_H_ */