95 lines
2.0 KiB
C
95 lines
2.0 KiB
C
/* 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;
|
|
}
|
|
|