I've been amusing myself recently playing with Curses in perl and now I want to play with multiple terminals (ala screen). If I'm reading the documentation for curses correctly, I want to use the newterm function to facilitate this. The problem is, newterm() either errors with complaints about my arguments or segfaults.

My latest segfault looks like this: 
my $o = IO::File->new("/dev/tty", "w");
my $i = IO::File->new("/dev/tty", "r");

newterm(undef, $o, $i);
endwin()

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I should note that roughly the same code in C works: 
#include <curses.h>
#include <stdlib.h>

int main()
{
  FILE *i, *o;

  i = fopen( "/dev/tty", "r" );
  o = fopen( "/dev/tty", "w" );

  SCREEN *s = newterm(0, o, i);

  addch('a');
  addch('b');
  addch('c');
  refresh();
  endwin();
}

[download]
I'll reproduce the XS code for newterm for your viewing pleasure: 
XS(XS_Curses_newterm)
{
    dXSARGS;
#ifdef C_NEWTERM
    c_exactargs("newterm", items, 3);
    {
  char *  type  = ST(0) != &PL_sv_undef ? (char *)SvPV(ST(0),PL_na) : 
+NULL;
  FILE *  outfd = IoIFP(sv_2io(ST(1)));
  FILE *  infd  = IoIFP(sv_2io(ST(2)));
  SCREEN *  ret = newterm(type, outfd, infd);

  ST(0) = sv_newmortal();
  c_screen2sv(ST(0), ret);
    }
    XSRETURN(1);
#else
    c_fun_not_there("newterm");
    XSRETURN(0);
#endif
}

[download]

In reply to Curses.pm and newterm by BUU

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