#include <libowfat/buffer.h>
#include <libowfat/errmsg.h>
#include <libowfat/str.h>
#include <unistd.h>

#define dieusage() die(100, argv0, " [-n] PROG ARGS");

static int consume=1;

static void consume_headers(void) {
  char buf[2048];
  int r;
  for (;;) {
    r=buffer_getline(buffer_0, buf, sizeof buf);
    if (r==0) die(100,"EOF before header end");
    if (buf[0]=='\r')
      break;
  }
}

int main(int argc, char **argv)
{
  char *header;
  int i;
  errmsg_iam(*argv);
  for (i=1;i<argc;i++) {
    if (argv[i][0]!='-') break;
    if (argv[i][1]=='-' && !argv[i][2]) break;
    switch (argv[i][1]) {
    case 'n': consume=0; break;
    default: dieusage();
    }
  }
  argc-=i; argv+=i;

  if (argc<1) dieusage();
  if (consume)
    consume_headers();

  header = "HTTP/1.0 200 OK\r\n"
    "Connection: close\r\n"
    "\r\n";
  if (write(1, header, str_len(header)) < 0)
    diesys(111, "write to stdout");
  execvp(argv[0], argv);
  diesys(111, "exec ", argv[0]);
}