[Pkg-privacy-commits] [libotr] 83/225: #define the magic value 45 (the length of a human-readable fingerprint)

[Ximin Luo]

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infinity0 pushed a commit to branch master
in repository libotr.

commit e31c21d5a4901fa2fa5c57c8ec07b4365138df1f
Author: Ian Goldberg <iang at cs.uwaterloo.ca>
Date:   Thu Jul 19 11:01:08 2012 -0400

     #define the magic value 45 (the length of a human-readable fingerprint)
---
 src/privkey.c |  7 +++++--
 src/privkey.h | 11 +++++++++--
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/privkey.c b/src/privkey.c
index 5411b63..f57f2b8 100644
--- a/src/privkey.c
+++ b/src/privkey.c
@@ -32,7 +32,9 @@
 #include "serial.h"
 
 /* Convert a 20-byte hash value to a 45-byte human-readable value */
-void otrl_privkey_hash_to_human(char human[45], const unsigned char hash[20])
+void otrl_privkey_hash_to_human(
+	char human[OTRL_PRIVKEY_FPRINT_HUMAN_LEN],
+	const unsigned char hash[20])
 {
     int word, byte;
     char *p = human;
@@ -52,7 +54,8 @@ void otrl_privkey_hash_to_human(char human[45], const unsigned char hash[20])
 /* Calculate a human-readable hash of our DSA public key.  Return it in
  * the passed fingerprint buffer.  Return NULL on error, or a pointer to
  * the given buffer on success. */
-char *otrl_privkey_fingerprint(OtrlUserState us, char fingerprint[45],
+char *otrl_privkey_fingerprint(OtrlUserState us,
+	char fingerprint[OTRL_PRIVKEY_FPRINT_HUMAN_LEN],
 	const char *accountname, const char *protocol)
 {
     unsigned char hash[20];
diff --git a/src/privkey.h b/src/privkey.h
index 0fd2a46..3b2c173 100644
--- a/src/privkey.h
+++ b/src/privkey.h
@@ -25,13 +25,20 @@
 #include "privkey-t.h"
 #include "userstate.h"
 
+/* The length of a string representing a human-readable version of a
+ * fingerprint (including the trailing NUL) */
+#define OTRL_PRIVKEY_FPRINT_HUMAN_LEN 45
+
 /* Convert a 20-byte hash value to a 45-byte human-readable value */
-void otrl_privkey_hash_to_human(char human[45], const unsigned char hash[20]);
+void otrl_privkey_hash_to_human(
+	char human[OTRL_PRIVKEY_FPRINT_HUMAN_LEN],
+	const unsigned char hash[20]);
 
 /* Calculate a human-readable hash of our DSA public key.  Return it in
  * the passed fingerprint buffer.  Return NULL on error, or a pointer to
  * the given buffer on success. */
-char *otrl_privkey_fingerprint(OtrlUserState us, char fingerprint[45],
+char *otrl_privkey_fingerprint(OtrlUserState us,
+	char fingerprint[OTRL_PRIVKEY_FPRINT_HUMAN_LEN],
 	const char *accountname, const char *protocol);
 
 /* Calculate a raw hash of our DSA public key.  Return it in the passed

-- 
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