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* expr: no need to nul-terminate buffer from expression ->snprintf indirectionPablo Neira Ayuso2017-10-041-3/+0
| | | | | | | ->snprintf() is always called via nftnl_expr_snprintf() wrapper, which is already dealing with this corner case for us. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: Buffer is null terminated.Varsha Rao2017-09-271-0/+3
| | | | | | | In _snprintf() functions definition the buffer is null terminated. Signed-off-by: Varsha Rao <rvarsha016@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: Change parameters of SNPRINTF_BUFFER_SIZE macro.Varsha Rao2017-09-271-7/+7
| | | | | | | | | SNPRINTF_BUFFER_SIZE() macro declaration and definition is changed so that it accepts three arguments ret, remain and offset. Parameters size and len are not required instead parameter remain keeps track of available space in the buffer. Signed-off-by: Varsha Rao <rvarsha016@gmail.com>
* expr: Add const qualifiers to *2str translation arraysTobias Klauser2017-01-161-1/+1
| | | | | | | | | | | | | | | | Add const qualifiers to the "to string" translation arrays used by various *2str() functions. This fixes GCC warnings such as the following when compiling with -Wwrite-strings: expr/byteorder.c:176:25: warning: initialization discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers] In order to catch these in the future, also add -Wwrite-strings to default CFLAGS. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add range expressionPablo Neira Ayuso2016-10-131-0/+288
Add range expression available that is scheduled for linux kernel 4.9. This range expression allows us to check if a given value placed in a register is within/outside a specified interval. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>