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| author | Vsevolod Stakhov <vsevolod@highsecure.ru> | 2016-06-10 09:27:25 +0100 |
|---|---|---|
| committer | Vsevolod Stakhov <vsevolod@highsecure.ru> | 2016-06-10 09:27:25 +0100 |
| commit | 42c732f32a45f4f3dbea262eff6b251a839eab15 (patch) | |
| tree | d14f27bd725f7ee3beedebbabd4079cd64e97424 /src/libutil/util.c | |
| parent | fb326efc2b3fa1c25705d218987199a608b87b87 (diff) | |
| download | rspamd-42c732f32a45f4f3dbea262eff6b251a839eab15.tar.gz rspamd-42c732f32a45f4f3dbea262eff6b251a839eab15.zip | |
[Feature] Add function to generate random hex string
Diffstat (limited to 'src/libutil/util.c')
| -rw-r--r-- | src/libutil/util.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/libutil/util.c b/src/libutil/util.c index 4ce90ba06..212cb7f1b 100644 --- a/src/libutil/util.c +++ b/src/libutil/util.c @@ -1875,6 +1875,25 @@ randombytes (guchar *buf, guint64 len) ottery_rand_bytes (buf, (size_t)len); } +void +rspamd_random_hex (guchar *buf, guint64 len) +{ + static const gchar hexdigests[16] = "0123456789abcdef"; + gint64 i; + + g_assert (len > 0); + + ottery_rand_bytes (buf, (len / 2.0 + 0.5)); + + for (i = (gint64)len - 1; i >= 0; i -= 2) { + buf[i] = hexdigests[buf[i / 2] & 0xf]; + + if (i > 0) { + buf[i - 1] = hexdigests[(buf[i / 2] >> 4) & 0xf]; + } + } +} + void rspamd_ptr_array_free_hard (gpointer p) |