sigkey handling: Introduce sigkeyid type

We provide helper macros for use with printf.

The reference to pubkeys.fl.pl comment is to code which doesn't exist
yet but comes later.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/secnet.h b/secnet.h
index 4a42b43c9fbdac105ad92d5ed0ddf85a66330d7e..dd5650d03f98c6451aaa3335e611ef700b3580b5 100644 (file)
--- a/secnet.h
+++ b/secnet.h
@@ -70,6 +70,22 @@ union iaddr {
 #endif
 };
 
+#define GRPIDSZ 4
+#define ALGIDSZ 1
+#define KEYIDSZ (GRPIDSZ+ALGIDSZ)
+  /* Changing these is complex: this is the group id plus algo id */
+  /* They are costructed by pubkeys.fl.pl.  Also hardcoded in _PR_ */
+struct sigkeyid { uint8_t b[KEYIDSZ]; };
+
+#define SIGKEYID_PR_FMT "%02x%02x%02x%02x%02x"
+#define SIGKEYID_PR_VAL(id) /* SIGKEYID_PR_VAL(const sigkeyid *id) */  \
+    ((id) == (const struct sigkeyid*)0, (id)->b[0]),                   \
+    (id)->b[1],(id)->b[2],(id)->b[3],(id)->b[4]
+static inline bool_t sigkeyid_equal(const struct sigkeyid *a,
+                                   const struct sigkeyid *b) {
+    return !memcmp(a->b, b->b, KEYIDSZ);
+}
+
 #define ASSERT(x) do { if (!(x)) { fatal("assertion failed line %d file " \
                                         __FILE__,__LINE__); } } while(0)