[Tarantool-patches] [PATCH v2 2/4] uuid: expose tt_uuid_validate method
Serge Petrenko
sergepetrenko at tarantool.org
Fri Apr 10 02:50:40 MSK 2020
Expose the code used to check UUID variant to a separate function:
tt_uuid_validate(). The function will be used for msgpack uuid decoding
when checking whether the buffer contains a valid uuid value.
Prerequisite #4268
---
src/lib/uuid/tt_uuid.c | 3 +++
src/lib/uuid/tt_uuid.h | 16 +++++++++++-----
2 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/src/lib/uuid/tt_uuid.c b/src/lib/uuid/tt_uuid.c
index 1bd2e2cfe..8bc9bc7af 100644
--- a/src/lib/uuid/tt_uuid.c
+++ b/src/lib/uuid/tt_uuid.c
@@ -65,6 +65,9 @@ tt_uuid_create(struct tt_uuid *uu)
}
#endif
+extern inline int
+tt_uuid_validate(struct tt_uuid *uu);
+
extern inline int
tt_uuid_from_string(const char *in, struct tt_uuid *uu);
diff --git a/src/lib/uuid/tt_uuid.h b/src/lib/uuid/tt_uuid.h
index 48cd68e69..c2c436ed4 100644
--- a/src/lib/uuid/tt_uuid.h
+++ b/src/lib/uuid/tt_uuid.h
@@ -62,6 +62,16 @@ struct tt_uuid {
void
tt_uuid_create(struct tt_uuid *uu);
+inline int
+tt_uuid_validate(struct tt_uuid *uu)
+{
+ /* Check variant (NCS, RFC4122, MSFT) */
+ uint8_t n = uu->clock_seq_hi_and_reserved;
+ if ((n & 0x80) != 0x00 && (n & 0xc0) != 0x80 && (n & 0xe0) != 0xc0)
+ return 1;
+ return 0;
+}
+
/**
* \brief Parse UUID from string.
* \param in string
@@ -79,11 +89,7 @@ tt_uuid_from_string(const char *in, struct tt_uuid *uu)
&uu->node[4], &uu->node[5]) != 11)
return 1;
- /* Check variant (NCS, RFC4122, MSFT) */
- uint8_t n = uu->clock_seq_hi_and_reserved;
- if ((n & 0x80) != 0x00 && (n & 0xc0) != 0x80 && (n & 0xe0) != 0xc0)
- return 1;
- return 0;
+ return tt_uuid_validate(uu);
}
/**
--
2.21.1 (Apple Git-122.3)
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