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Cream of the Crop 1
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Cream of the Crop 1.iso
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PROGRAM
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DJSRC106.ARJ
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EXE2AOUT.C
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C/C++ Source or Header
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1992-04-13
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1KB
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72 lines
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <string.h>
main(int argc, char **argv)
{
int i;
for (i=1; i<argc; i++)
exe2aout(argv[i]);
}
exe2aout(char *fname)
{
unsigned short header[3];
int ifile;
int ofile;
char buf[4096];
int rbytes;
ifile = open(fname, O_RDONLY|O_BINARY);
if (ifile < 0)
{
perror(fname);
return;
}
read(ifile, header, sizeof(header));
if (header[0] == 0x5a4d)
{
long header_offset = (long)header[1] + (long)header[2]*512L - 512L;
lseek(ifile, header_offset, 0);
header[0] = 0;
read(ifile, header, sizeof(header));
if (header[0] != 0x010b)
{
fprintf(stderr, "%s does not have an a.out file appended to it\n", fname);
exit(1);
}
lseek(ifile, header_offset, 0);
}
else
{
fprintf(stderr, "%s is not an .EXE file\n", fname);
exit(1);
}
*strrchr(fname, '.') = 0;
ofile = open(fname, O_WRONLY|O_CREAT|O_TRUNC|O_BINARY, 0666);
if (ofile < 0)
{
perror(fname);
return;
}
while ((rbytes=read(ifile, buf, 4096)) > 0)
{
int wb = write(ofile, buf, rbytes);
if (wb < 0)
{
perror(fname);
break;
}
if (wb < rbytes)
{
fprintf(stderr, "%s: disk full\n", fname);
exit(1);
}
}
close(ifile);
close(ofile);
}