src: constify nft_*_attr_set and nft_*_attr_set_str

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/libnftables/expr.h b/include/libnftables/expr.h
index 6d5d4e3..2478998 100644
--- a/include/libnftables/expr.h
+++ b/include/libnftables/expr.h
@@ -19,7 +19,7 @@ void nft_rule_expr_set(struct nft_rule_expr *expr, uint16_t type, const void *da
 void nft_rule_expr_set_u8(struct nft_rule_expr *expr, uint16_t type, uint8_t data);
 void nft_rule_expr_set_u32(struct nft_rule_expr *expr, uint16_t type, uint32_t data);
 void nft_rule_expr_set_u64(struct nft_rule_expr *expr, uint16_t type, uint64_t data);
-void nft_rule_expr_set_str(struct nft_rule_expr *expr, uint16_t type, char *str);
+void nft_rule_expr_set_str(struct nft_rule_expr *expr, uint16_t type, const char *str);
 
 const void *nft_rule_expr_get(struct nft_rule_expr *expr, uint16_t type, size_t *data_len);
 uint8_t nft_rule_expr_get_u8(struct nft_rule_expr *expr, uint16_t type);