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| author | Nick Mathewson <nickm@torproject.org> | 2007-06-06 13:02:22 +0000 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2007-06-06 13:02:22 +0000 |
| commit | 6673d445f57aac34035393cdbfefaf67249e1a34 (patch) | |
| tree | 696a9eb5596078cbb4692288dadc2951d71ea78d /src/common/crypto.c | |
| parent | 1a29d6808140df77dc8a9381906f178588440e1c (diff) | |
| download | tor-6673d445f57aac34035393cdbfefaf67249e1a34.tar.gz tor-6673d445f57aac34035393cdbfefaf67249e1a34.zip | |
r13283@catbus: nickm | 2007-06-06 01:43:44 -0400
Fix up a couple of loops flagged by -Wunsafe-loop-optimizations so that they are more readable (and more amenable to compilation)
svn:r10513
Diffstat (limited to 'src/common/crypto.c')
| -rw-r--r-- | src/common/crypto.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/src/common/crypto.c b/src/common/crypto.c index bcb8a375a8..adf375bd83 100644 --- a/src/common/crypto.c +++ b/src/common/crypto.c @@ -1494,14 +1494,12 @@ crypto_expand_key_material(const char *key_in, size_t key_in_len, tor_assert(key_out_len <= DIGEST_LEN*256); memcpy(tmp, key_in, key_in_len); - for (cp = key_out, i=0; key_out_len; - ++i, cp += DIGEST_LEN, key_out_len -= DIGEST_LEN) { + for (cp = key_out, i=0; cp < key_out+key_out_len; + ++i, cp += DIGEST_LEN) { tmp[key_in_len] = i; if (crypto_digest(digest, tmp, key_in_len+1)) goto err; - memcpy(cp, digest, MIN(DIGEST_LEN, key_out_len)); - if (key_out_len < DIGEST_LEN) - break; + memcpy(cp, digest, MIN(DIGEST_LEN, key_out_len-(cp-key_out))); } memset(tmp, 0, key_in_len+1); tor_free(tmp); |