This will be used to validate that the size is correct according
to the expected attribute size.
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
src/internal.h | 13 +++++++++++++
src/utils.c | 7 +++++++
2 files changed, 20 insertions(+)
diff --git a/src/internal.h b/src/internal.h
index a3fc46f..3216bc6 100644
--- a/src/internal.h
+++ b/src/internal.h
@@ -187,4 +187,17 @@ struct nft_set_elem {
#define __init __attribute__((constructor))
+void __nft_assert_fail(uint16_t attr, const char *filename, int line);
+
+#define nft_assert(attr, expr) \
+ ((expr) \
+ ? (void)0 \
+ : __nft_assert_fail(attr, __FILE__, __LINE__))
+
+#define nft_assert_validate(_validate_array, _attr, _data_len) \
+({ \
+ if (_validate_array[_attr]) \
+ nft_assert(attr, _validate_array[_attr] == _data_len); \
+})
+
#endif
diff --git a/src/utils.c b/src/utils.c
index 9691c4c..18917f5 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -211,3 +211,10 @@ int nft_fprintf(FILE *fp, void *obj, uint32_t type, uint32_t flags,
return ret;
}
+
+void __nft_assert_fail(uint16_t attr, const char *filename, int line)
+{
+ fprintf(stderr, "libnftnl: attribute %d assertion failed in %s:%d\n",
+ attr, filename, line);
+ exit(EXIT_FAILURE);
+}
--
1.7.10.4
--
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