Protect against spurious connection events.

[tinc] / src / utils.h

diff --git a/src/utils.h b/src/utils.h
index fddb8a6..a6adffb 100644 (file)
--- a/src/utils.h
+++ b/src/utils.h
@@ -1,7 +1,7 @@
 /*
     utils.h -- header file for utils.c
     Copyright (C) 1999-2005 Ivo Timmermans
-                  2000-2009 Guus Sliepen <guus@tinc-vpn.org>
+                  2000-2013 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -21,8 +21,12 @@
 #ifndef __TINC_UTILS_H__
 #define __TINC_UTILS_H__
 
-extern void hex2bin(char *src, char *dst, int length);
-extern void bin2hex(char *src, char *dst, int length);
+extern int hex2bin(const char *src, void *dst, int length);
+extern int bin2hex(const void *src, char *dst, int length);
+
+extern int b64encode(const void *src, char *dst, int length);
+extern int b64encode_urlsafe(const void *src, char *dst, int length);
+extern int b64decode(const char *src, void *dst, int length);
 
 #ifdef HAVE_MINGW
 extern const char *winerror(int);
@@ -33,6 +37,8 @@ extern const char *winerror(int);
 #define sockmsgsize(x) ((x) == WSAEMSGSIZE)
 #define sockinprogress(x) ((x) == WSAEINPROGRESS || (x) == WSAEWOULDBLOCK)
 #define sockinuse(x) ((x) == WSAEADDRINUSE)
+#define sockalready(x) ((x) == WSAEALREADY || (x) == WSAEINVAL || (x) == WSAEWOULDBLOCK) /* See MSDN for connect() */
+#define sockisconn(x) ((x) == WSAEISCONN)
 #else
 #define sockerrno errno
 #define sockstrerror(x) strerror(x)
@@ -40,8 +46,10 @@ extern const char *winerror(int);
 #define sockmsgsize(x) ((x) == EMSGSIZE)
 #define sockinprogress(x) ((x) == EINPROGRESS)
 #define sockinuse(x) ((x) == EADDRINUSE)
+#define sockalready(x) ((x) == EALREADY)
+#define sockisconn(x) ((x) == EISCONN)
 #endif
 
-extern unsigned int bitfield_to_int(void *bitfield, size_t size);
+extern unsigned int bitfield_to_int(const void *bitfield, size_t size);
 
-#endif                                                 /* __TINC_UTILS_H__ */
+#endif /* __TINC_UTILS_H__ */