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[or-cvs] Move code to check for zero digests into util.c
Update of /home/or/cvsroot/tor/src/common
In directory moria:/tmp/cvs-serv13611/src/common
Modified Files:
util.c util.h
Log Message:
Move code to check for zero digests into util.c
Index: util.c
===================================================================
RCS file: /home/or/cvsroot/tor/src/common/util.c,v
retrieving revision 1.233
retrieving revision 1.234
diff -u -d -r1.233 -r1.234
--- util.c 15 Nov 2005 03:16:32 -0000 1.233
+++ util.c 30 Nov 2005 02:47:59 -0000 1.234
@@ -417,6 +417,15 @@
return s;
}
+/** Return true iff the DIGEST_LEN bytes in digest are all zero. */
+int
+tor_digest_is_zero(const char *digest)
+{
+ static char ZERO_DIGEST[] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
+
+ return !memcmp(digest, ZERO_DIGEST, DIGEST_LEN);
+}
+
#define CHECK_STRTOX_RESULT() \
/* Was at least one character converted? */ \
if (endptr == s) \
Index: util.h
===================================================================
RCS file: /home/or/cvsroot/tor/src/common/util.h,v
retrieving revision 1.148
retrieving revision 1.149
diff -u -d -r1.148 -r1.149
--- util.h 1 Nov 2005 06:12:51 -0000 1.148
+++ util.h 30 Nov 2005 02:47:59 -0000 1.149
@@ -111,6 +111,7 @@
const char *eat_whitespace(const char *s);
const char *eat_whitespace_no_nl(const char *s);
const char *find_whitespace(const char *s);
+int tor_digest_is_zero(const char *digest);
void base16_encode(char *dest, size_t destlen, const char *src, size_t srclen);
int base16_decode(char *dest, size_t destlen, const char *src, size_t srclen);