Commit 6b49a93b authored by Nick Mathewson's avatar Nick Mathewson 🤹
Browse files

Move code to check for zero digests into util.c 


svn:r5468
parent 447a3a7f

src/common/util.c

+9 −0
Original line number Diff line number Diff line
@@ -417,6 +417,15 @@ find_whitespace(const char *s) 
  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)                                      \

src/common/util.h

+1 −0
Original line number Diff line number Diff line
@@ -111,6 +111,7 @@ const char *hex_str(const char *from, size_t fromlen); 
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);