diff options
| author | Phil Sutter <phil@nwl.cc> | 2017-09-28 17:17:45 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-09-29 12:37:51 +0200 |
| commit | 2535ba7006f22a6470f4c88ea7d30c343a1d8799 (patch) | |
| tree | e09697d8d9a59394170fa412276346d64b5b62e7 /include/nftables.h | |
| parent | 15a1f5bd55735f6f65a6fd9e2e86bb4a3f5ac815 (diff) | |
src: get rid of printf
This patch introduces nft_print()/nft_gmp_print() functions which have
to be used instead of printf to output information that were previously
send to stdout. These functions print to a FILE pointer defined in
struct output_ctx. It is set by calling:
| old_fp = nft_ctx_set_output(ctx, new_fp);
Having an application-defined FILE pointer is actually quite flexible:
Using fmemopen() or even fopencookie(), an application gains full
control over what is printed and where it should go to.
Signed-off-by: Eric Leblond <eric@regit.org>
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/nftables.h')
| -rw-r--r-- | include/nftables.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/nftables.h b/include/nftables.h index 3429e4c1..01d72a87 100644 --- a/include/nftables.h +++ b/include/nftables.h @@ -30,6 +30,7 @@ struct output_ctx { unsigned int ip2name; unsigned int handle; unsigned int echo; + FILE *output_fp; }; struct nft_cache { @@ -148,4 +149,9 @@ void realm_table_meta_exit(void); void devgroup_table_exit(void); void realm_table_rt_exit(void); +int nft_print(struct output_ctx *octx, const char *fmt, ...) + __attribute__((format(printf, 2, 3))); +int nft_gmp_print(struct output_ctx *octx, const char *fmt, ...) + __attribute__((format(printf, 2, 0))); + #endif /* NFTABLES_NFTABLES_H */ |