crypto/kerberosIV/lib/krb/sizetest.c


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#include "krb_locl.h"

RCSID("$Id: sizetest.c,v 1.6 1998/01/01 22:29:04 assar Exp $");

static void
fatal(const char *msg)
{
  fputs(msg, stderr);
  exit(1);
}

int
main(void)
{
  if (sizeof(u_int8_t) < 1)
    fatal("sizeof(u_int8_t) is smaller than 1 byte\n");
  if (sizeof(u_int16_t) < 2)
    fatal("sizeof(u_int16_t) is smaller than 2 bytes\n");
  if (sizeof(u_int32_t) < 4)
    fatal("sizeof(u_int32_t) is smaller than 4 bytes\n");

  if (sizeof(u_int8_t) > 1)
    fputs("warning: sizeof(u_int8_t) is larger than 1 byte, "
	  "some stuff may not work properly!\n", stderr);

  {
    u_int8_t u = 1;
    int i;
    for (i = 0; u != 0 && i < 100; i++)
      u <<= 1;

    if (i < 8)
      fatal("u_int8_t is smaller than 8 bits\n");
    else if (i > 8)
      fputs("warning: u_int8_t is larger than 8 bits, "
	    "some stuff may not work properly!\n", stderr);
  }

  exit(0);
}