X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Futils.h;h=0818047777728620e13419bb78f0b180e865a47e;hb=c44b08613508c993e7fd9f625e0b1b4775efffed;hp=5f1bd8b8e8ac426e0cba16df91cfacb3893cc1b6;hpb=373b0c12d9d0e8a3b449fd18be704e28dd6403e1;p=tinc

diff --git a/src/utils.h b/src/utils.h
index 5f1bd8b8..08180477 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -26,10 +26,17 @@
 #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);