Max has submitted this change and it was merged. (
https://gerrit.osmocom.org/12373 )
Change subject: TLV: add convenience function for 1-byte values
......................................................................
TLV: add convenience function for 1-byte values
Similar to existing 16 and 32 bit value helpers but simpler because we
don't have to worry about alingment and endianness.
Change-Id: Ic0a148bd04b8860e321f509fdcd913f688c8e920
---
M include/osmocom/gsm/tlv.h
1 file changed, 16 insertions(+), 0 deletions(-)
Approvals:
Max: Looks good to me, approved
Jenkins Builder: Verified
diff --git a/include/osmocom/gsm/tlv.h b/include/osmocom/gsm/tlv.h
index 4c39264..d0c9552 100644
--- a/include/osmocom/gsm/tlv.h
+++ b/include/osmocom/gsm/tlv.h
@@ -495,6 +495,22 @@
(TLVP_PRES_LEN(_tp, tag, min_len)? (_tp)->lv[tag].val : NULL)
+/*! Obtain 1-byte TLV element.
+ * \param[in] tp pointer to \ref tlv_parsed
+ * \param[in] tag the Tag to look for
+ * \param[in] default_val default value to use if tag not available
+ * \returns the 1st byte of value with a given tag or default_val if tag was
not found
+ */
+static inline uint8_t tlvp_val8(const struct tlv_parsed *tp, uint8_t tag,
uint8_t default_val)
+{
+ const uint8_t *res = TLVP_VAL_MINLEN(tp, tag, 1);
+
+ if (res)
+ return res[0];
+
+ return default_val;
+}
+
/*! Align given TLV element with 16 bit value to an even address
* \param[in] tp pointer to \ref tlv_parsed
* \param[in] pos element to return
--
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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: Ic0a148bd04b8860e321f509fdcd913f688c8e920
Gerrit-Change-Number: 12373
Gerrit-PatchSet: 4
Gerrit-Owner: Max <[email protected]>
Gerrit-Reviewer: Harald Welte <[email protected]>
Gerrit-Reviewer: Jenkins Builder (1000002)
Gerrit-Reviewer: Max <[email protected]>
Gerrit-Reviewer: Neels Hofmeyr <[email protected]>
Gerrit-Reviewer: Vadim Yanitskiy <[email protected]>
