size_t/int/long fixes

char *curl_escape(const char *string, int length)

{

  int alloc = (length?length:(int)strlen(string))+1;  

  size_t alloc = (length?(size_t)length:strlen(string))+1;  

  char *ns = malloc(alloc);

  char *testing_ptr = NULL;

  unsigned char in;

  int newlen = alloc;

  size_t newlen = alloc;

  int strindex=0;

  length = alloc-1;

  char *ns = malloc(alloc);

  unsigned char in;

  int strindex=0;

  unsigned int hex;

  long hex;

  if( !ns ) {

    return NULL;

      hex = strtol(hexstr, &ptr, 16);

      in = hex;

      in = (unsigned char)hex; /* this long is never bigger than 255 anyway */

      string+=2;

      alloc-=2;

    }