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/* $OpenBSD: mopa.out.c,v 1.11 2010/11/19 21:09:20 miod Exp $ */
/* mopa.out - Convert a Unix format kernel into something that
* can be transferred via MOP.
*
* This code was written while referring to the NetBSD/vax boot
* loader. Therefore anything that can be booted by the Vax
* should be convertable with this program.
*
* If necessary, the a.out header is stripped, and the program
* segments are padded out. The BSS segment is zero filled.
* A header is prepended that looks like an IHD header. In
* particular the Unix machine ID is placed where mopd expects
* the image type to be (offset is IHD_W_ALIAS). If the machine
* ID could be mistaken for a DEC image type, then the conversion
* is aborted. The original a.out header is copied into the front
* of the header so that once we have detected the Unix machine
* ID we can haul the load address and the xfer address out.
*/
/*
* Copyright (c) 1996 Lloyd Parkes. 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Lloyd Parkes.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include "os.h"
#include "common/common.h"
#include "common/mopdef.h"
#include "common/file.h"
#if defined(__NetBSD__) || defined(__OpenBSD__)
#include <sys/exec_aout.h>
#endif
#if defined(__FreeBSD__)
#include <sys/imgact_aout.h>
#endif
#if defined(__bsdi__)
#include <a.out.h>
#define NOAOUT
#endif
#if !defined(MID_VAX)
#define MID_VAX 140
#endif
u_char header[512]; /* The VAX header we generate is 1 block. */
struct exec ex, ex_swap;
int
main (int argc, char **argv)
{
FILE *out; /* A FILE because that is easier. */
int i;
struct dllist dl;
#ifdef NOAOUT
fprintf(stderr, "%s: has no function in OS/BSD\n", argv[0]);
return(1);
#endif
if (argc != 3) {
fprintf (stderr, "usage: %s infile outfile\n", argv[0]);
return (1);
}
dl.ldfd = open (argv[1], O_RDONLY);
if (dl.ldfd == -1) {
perror (argv[1]);
return (2);
}
GetFileInfo(dl.ldfd,
&dl.loadaddr,
&dl.xferaddr,
&dl.aout,
&dl.a_text,&dl.a_text_fill,
&dl.a_data,&dl.a_data_fill,
&dl.a_bss ,&dl.a_bss_fill, 0);
if (dl.aout == -1) {
fprintf(stderr,"%s: not an a.out file\n",argv[1]);
return (3);
}
if (dl.aout != MID_VAX) {
fprintf(stderr,"%s: file is not a VAX image (mid=%d)\n",
argv[1],dl.aout);
return (4);
}
i = dl.a_text + dl.a_text_fill + dl.a_data + dl.a_data_fill +
dl.a_bss + dl.a_bss_fill;
i = (i+1) / 512;
dl.nloadaddr = dl.loadaddr;
dl.lseek = lseek(dl.ldfd,0L,SEEK_CUR);
dl.a_lseek = 0;
dl.count = 0;
dl.dl_bsz = 512;
mopFilePutLX(header,IHD_W_SIZE,0xd4,2); /* Offset to ISD section. */
mopFilePutLX(header,IHD_W_ACTIVOFF,0x30,2);/* Offset to 1st section.*/
mopFilePutLX(header,IHD_W_ALIAS,IHD_C_NATIVE,2);/* It's a VAX image.*/
mopFilePutLX(header,IHD_B_HDRBLKCNT,1,1); /* Only one header block. */
mopFilePutLX(header,0x30+IHA_L_TFRADR1,dl.xferaddr,4); /* Xfer Addr */
mopFilePutLX(header,0xd4+ISD_W_PAGCNT,i,2);/* Imagesize in blks.*/
out = fopen (argv[2], "w");
if (!out) {
perror (argv[2]);
return (2);
}
/* Now we do the actual work. Write VAX MOP-image header */
fwrite (header, sizeof (header), 1, out);
fprintf (stderr, "copying %lu", dl.a_text);
fprintf (stderr, "+%lu", dl.a_data);
fprintf (stderr, "+%lu", dl.a_bss);
fprintf (stderr, "->%lu", dl.xferaddr);
fprintf (stderr, "\n");
while ((i = mopFileRead(&dl,header)) > 0) {
(void)fwrite(header, i, 1, out);
}
fclose (out);
exit(0);
}
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