Implement size limits on HTTP header length and body length.

Patch from Constantine Verutin, simplified a little.

svn:r1500

1 files changed, 36 insertions, 0 deletions

diff --git a/util-internal.h b/util-internal.h
index ef82af99..3c243d63 100644
--- a/util-internal.h
+++ b/util-internal.h
@@ -36,6 +36,7 @@
 #ifdef _EVENT_HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
 #endif
+#include "event2/util.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -167,6 +168,41 @@ int evutil_resolve(int family, const char *hostname, struct sockaddr *sa,
 		}							\
 	} while(0)
 
+#ifdef UINT64_MAX
+#define EV_UINT64_MAX UINT64_MAX
+#elif defined(WIN32)
+#define EV_UINT64_MAX 0xffffffffffffffffui64
+#elif _EVENT_SIZEOF_LONG_LONG == 8
+#define EV_UINT64_MAX 0xffffffffffffffffull
+#elif _EVENT_SIZEOF_LONG == 8
+#define EV_UINT64_MAX 0xfffffffffffffffful
+#else
+/* Hope for a two's complement representation */
+#define EV_UINT64_MAX ((ev_uint64_t)-1)
+#endif
+
+#ifdef UINT32_MAX
+#define EV_UINT32_MAX UINT32_MAX
+#elif defined(WIN32)
+#define EV_UINT32_MAX 0xffffffffui64
+#elif _EVENT_SIZEOF_INT == 4
+#define EV_UINT32_MAX 0xffffffffu
+#elif _EVENT_SIZEOF_LONG == 4
+#define EV_UINT32_MAX 0xfffffffful
+#else
+/* Hope for a two's complement representation */
+#define EV_UINT32_MAX ((ev_uint32_t)-1)
+#endif
+
+#if _EVENT_SIZEOF_SIZE_T == 8
+#define EV_SIZE_MAX EV_UINT64_MAX
+#elif  _EVENT_SIZEOF_SIZE_T == 4
+#define EV_SIZE_MAX EV_UINT32_MAX
+#else
+/* Hope for a two's complement representation */
+#define EV_SIZE_MAX ((size_t)-1)
+#endif
+
 #ifdef __cplusplus
 }
 #endif