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/* Copyright (C) 1998 DJ Delorie, see COPYING.DJ for details */
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
/* Updated 2008 to use fread/fopen and friends instead of read/open so it compiles with GCC on Unix (Rubidium) */
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
static void
exe2aout(char *fname)
{
unsigned short header[3];
FILE *ifile;
FILE *ofile;
char buf[4096];
int rbytes;
char *dot = strrchr(fname, '.');
if (!dot || strlen(dot) != 4
|| tolower(dot[1]) != 'e'
|| tolower(dot[2]) != 'x'
|| tolower(dot[3]) != 'e')
{
fprintf(stderr, "%s: Arguments MUST end with a .exe extension\n", fname);
return;
}
ifile = fopen(fname, "rb");
if (!ifile)
{
perror(fname);
return;
}
fread(header, sizeof(header), 1, ifile);
if (header[0] == 0x5a4d)
{
long header_offset = (long)header[2]*512L;
if (header[1])
header_offset += (long)header[1] - 512L;
fseek(ifile, header_offset, SEEK_SET);
header[0] = 0;
fread(header, sizeof(header), 1, ifile);
if ((header[0] != 0x010b) && (header[0] != 0x014c))
{
fprintf(stderr, "`%s' does not have a COFF/AOUT program appended to it\n", fname);
return;
}
fseek(ifile, header_offset, SEEK_SET);
}
else
{
fprintf(stderr, "`%s' is not an .EXE file\n", fname);
return;
}
*dot = 0;
ofile = fopen(fname, "w+b");
if (!ofile)
{
perror(fname);
return;
}
while ((rbytes=fread(buf, 1, 4096, ifile)) > 0)
{
int wb = fwrite(buf, 1, rbytes, ofile);
if (wb < 0)
{
perror(fname);
break;
}
if (wb < rbytes)
{
fprintf(stderr, "`%s': disk full\n", fname);
exit(1);
}
}
fclose(ifile);
fclose(ofile);
}
int
main(int argc, char **argv)
{
int i;
if (argc == 1) printf("Usage: %s <exename>", argv[0]);
for (i=1; i<argc; i++)
exe2aout(argv[i]);
return 0;
}
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