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| author |   Gilles Chehade <gilles@poolp.org> | 2013-10-02 10:20:56 +0200 |
|---|---|---|
| committer | Gilles Chehade <gilles@poolp.org> | 2013-10-02 10:20:56 +0200 |
| commit | bf4fec3480a2f9e2e47ad0dbafc0a99521cc9a5a (patch) | |
| tree | b8243ac7687136b2843617c93ca061cf12b7d2d0 | |
| parent | introduce csprng.c instead of having to pull util.c from everywhere (diff) | |
| download | OpenSMTPD-bf4fec3480a2f9e2e47ad0dbafc0a99521cc9a5a.tar.xz OpenSMTPD-bf4fec3480a2f9e2e47ad0dbafc0a99521cc9a5a.zip | |
randomize counter part of uid's generated with generate_uid()
| -rw-r--r-- | smtpd/util.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/smtpd/util.c b/smtpd/util.c index 0fdbeaa7..095a9b02 100644 --- a/smtpd/util.c +++ b/smtpd/util.c @@ -627,8 +627,13 @@ uint64_t generate_uid(void) { static uint32_t id; + static uint8_t inited; uint64_t uid; + if (!inited) { + id = csprng_random(); + inited = 1; + } while ((uid = ((uint64_t)(id++) << 32 | csprng_random())) == 0) ; |