[C400-L] fread not working

[James Rich <james@xxxxxxxxxxx>]

I wrote (well copied from someone else) a little C program that does this:

int
main (int argc, char *argv[])
{
  FILE *infile;
  char buffer[LEN_BUF + 1];
  int len = LEN_BUF;

  infile = fopen ("/home/james/test.ps", "rb");
  len = fread (buffer, sizeof (char), LEN_BUF, infile);
  fclose (infile);
  return 0;
}

When I compile it with *IFSIO everything works just fine.  But I need to 
make this part of an RPG program.  So I change int main(int argc, char 
*argv[]) to int 
copy_ps_to_sf(FILE *infile), remove the FILE *infile declaration from the 
body of the function, and used CRTCMOD with *IFSIO.  My RPG program opens 
the file and passes the file pointer as 10I 0.  But now when this function 
runs I get:

read(): Operation not supported.

from perror.  How can I read a file in C that I opened in RPG?

James Rich

It's not the software that's free; it's you.
        - billyskank on Groklaw