X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Futils.h;h=0818047777728620e13419bb78f0b180e865a47e;hb=c44b08613508c993e7fd9f625e0b1b4775efffed;hp=9756a3e0c3ca893180ac792a728029d9ef886014;hpb=a85198d20f24cd4e20ec5c57e402611fef8b137a;p=tinc

diff --git a/src/utils.h b/src/utils.h
index 9756a3e0..08180477 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -26,15 +26,22 @@
 #include "crypto.h"
 
 #define B64_SIZE(len) ((len) * 4 / 3 + 5)
+#define HEX_SIZE(len) ((len) * 2 + 1)
 
 extern size_t hex2bin(const char *src, void *dst, size_t length);
 extern size_t bin2hex(const void *src, char *dst, size_t length);
 
+// Returns true if string represents a base-10 integer.
+extern bool is_decimal(const char *str);
+
+// The reverse of atoi().
+extern char *int_to_str(int num);
+
 extern size_t b64encode_tinc(const void *src, char *dst, size_t length);
 extern size_t b64encode_tinc_urlsafe(const void *src, char *dst, size_t length);
 extern size_t b64decode_tinc(const char *src, void *dst, size_t length);
 
-#ifdef HAVE_MINGW
+#ifdef HAVE_WINDOWS
 extern const char *winerror(int);
 #define strerror(x) ((x)>0?strerror(x):winerror(GetLastError()))
 #define sockerrno WSAGetLastError()