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| author | Harald Welte <laforge@gnumonks.org> | 2014-08-18 15:31:04 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2014-08-18 15:31:04 +0200 |
| commit | cc27fa6479efd446065d691d888d1729bc1be2c8 (patch) | |
| tree | cc3637f46dad2ee66a83c24a4ba3d8c4beca3df9 /include | |
| parent | 900e180f919d788adf55202a9d56e6ef7458de82 (diff) | |
TLV: add TLVP_PRES_LEN() definition to check for existance + minimum length
This is an import from osmo-bts where it was introduced in
6b561bb7ba5f10c5fd96542a7e42de2822352a67
Diffstat (limited to 'include')
| -rw-r--r-- | include/osmocom/gsm/tlv.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/osmocom/gsm/tlv.h b/include/osmocom/gsm/tlv.h index fda1810e..d54ef1af 100644 --- a/include/osmocom/gsm/tlv.h +++ b/include/osmocom/gsm/tlv.h @@ -409,6 +409,9 @@ void tlv_def_patch(struct tlv_definition *dst, const struct tlv_definition *src) #define TLVP_LEN(x, y) (x)->lv[y].len #define TLVP_VAL(x, y) (x)->lv[y].val +#define TLVP_PRES_LEN(tp, tag, min_len) \ + (TLVP_PRESENT(tp, tag) && TLVP_LEN(tp, tag) >= min_len) + /*! \brief 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 |