You should have received a copy of the GNU General Public License
along with Wget; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+In addition, as a special exception, the Free Software Foundation
+gives permission to link the code of its release of Wget with the
+OpenSSL project's "OpenSSL" library (or with modified versions of it
+that use the same license as the "OpenSSL" library), and distribute
+the linked executables. You must obey the GNU General Public License
+in all respects for all of the code used other than "OpenSSL". If you
+modify this file, you may extend this exception to your version of the
+file, but you are not obligated to do so. If you do not wish to do
+so, delete this exception statement from your version. */
/* This file contains some declarations that don't fit anywhere else.
It also contains some useful includes, like the obnoxious TIME_H
/* The smaller value of the two. */
#define MINVAL(x, y) ((x) < (y) ? (x) : (y))
-/* Convert the ASCII character X to a hex-digit. X should be between
- '0' and '9', or between 'A' and 'F', or between 'a' and 'f'. The
- result is a number between 0 and 15. If X is not a hexadecimal
- digit character, the result is undefined. */
-#define XCHAR_TO_XDIGIT(x) \
- (((x) >= '0' && (x) <= '9') ? \
- ((x) - '0') : (TOUPPER(x) - 'A' + 10))
+/* Convert the ASCII character that represents a hexadecimal digit to
+ the number in range [0, 16) that corresponds to the digit. X
+ should be between '0' and '9', or between 'A' and 'F', or between
+ 'a' and 'f'. If X is not a hexadecimal digit character, the result
+ is undefined. */
+#define XCHAR_TO_XDIGIT(x) \
+ (((x) >= '0' && (x) <= '9') ? ((x) - '0') : (TOUPPER(x) - 'A' + 10))
-/* The reverse of the above: convert a HEX digit in the [0, 15] range
- to an ASCII character representing it. The A-F characters are
- always in upper case. */
-#define XDIGIT_TO_XCHAR(x) (((x) < 10) ? ((x) + '0') : ((x) - 10 + 'A'))
+/* The reverse of the above: convert a digit number in the [0, 16)
+ range to an ASCII character. The A-F characters are in upper
+ case. */
+#define XDIGIT_TO_XCHAR(x) ("0123456789ABCDEF"[x])
-/* Like XDIGIT_TO_XCHAR, but produce a lower-case char. */
-#define XDIGIT_TO_xchar(x) (((x) < 10) ? ((x) + '0') : ((x) - 10 + 'a'))
+/* Like XDIGIT_TO_XCHAR, but generates lower-case characters. */
+#define XDIGIT_TO_xchar(x) ("0123456789abcdef"[x])
-#define ARRAY_SIZE(array) (sizeof (array) / sizeof (*(array)))
+/* Returns the number of elements in an array with fixed
+ initialization. For example:
+
+ static char a[] = "foo"; -- countof(a) == 4 (for terminating \0)
+
+ int a[5] = {1, 2}; -- countof(a) == 5
+
+ char *a[3] = { -- countof(a) == 3
+ "foo", "bar", "baz"
+ };
+
+ And, most importantly, it works when the compiler counts the array
+ elements for you:
+
+ char *a[] = { -- countof(a) == 4
+ "foo", "bar", "baz", "qux"
+ } */
+#define countof(array) (sizeof (array) / sizeof (*(array)))
+
+#define ARRAY_SIZE(array) countof (array)
/* Copy the data delimited with BEG and END to alloca-allocated
storage, and zero-terminate it. BEG and END are evaluated only
retrieve the requisites of a single document. */
#define INFINITE_RECURSION -1
+#define CONNECT_ERROR(x) ((x) == ECONNREFUSED && !opt.retry_connrefused \
+ ? CONREFUSED : CONERROR)
+
#endif /* WGET_H */