2 * Copyright (c) 1993, David Greenman
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #ifndef _SYS_IMGACT_H_
33 #define _SYS_IMGACT_H_
37 #define MAXSHELLCMDLEN PAGE_SIZE
40 char *buf; /* pointer to string buffer */
41 char *begin_argv; /* beginning of argv in buf */
42 char *begin_envv; /* beginning of envv in buf */
43 char *endp; /* current `end' pointer of arg & env strings */
44 char *fname; /* pointer to filename of executable (system space) */
45 int stringspace; /* space left in arg & env buffer */
46 int argc; /* count of argument strings */
47 int envc; /* count of environment strings */
48 int fd; /* file descriptor of the executable */
52 struct proc *proc; /* our process struct */
53 struct label *execlabel; /* optional exec label */
54 struct vnode *vp; /* pointer to vnode of file to exec */
55 struct vm_object *object; /* The vm object for this vp */
56 struct vattr *attr; /* attributes of file */
57 const char *image_header; /* head of file to exec */
58 unsigned long entry_addr; /* entry address of target executable */
59 char vmspace_destroyed; /* flag - we've blown away original vm space */
60 char interpreted; /* flag - this executable is interpreted */
61 char opened; /* flag - we have opened executable vnode */
62 char *interpreter_name; /* name of the interpreter */
63 void *auxargs; /* ELF Auxinfo structure pointer */
64 struct sf_buf *firstpage; /* first page that we mapped */
65 unsigned long ps_strings; /* PS_STRINGS for BSD/OS binaries */
67 struct image_args *args; /* system call arguments */
68 struct sysentvec *sysent; /* system entry vector */
70 unsigned long execpathp;
78 int exec_check_permissions(struct image_params *);
79 register_t *exec_copyout_strings(struct image_params *);
80 int exec_new_vmspace(struct image_params *, struct sysentvec *);
81 void exec_setregs(struct thread *, u_long, u_long, u_long);
82 int exec_shell_imgact(struct image_params *);
83 int exec_copyin_args(struct image_args *, char *, enum uio_seg,
87 #endif /* !_SYS_IMGACT_H_ */