path: root/src/numgen.c
diff options
authorPhil Sutter <>2017-09-28 17:17:45 +0200
committerPablo Neira Ayuso <>2017-09-29 12:37:51 +0200
commit2535ba7006f22a6470f4c88ea7d30c343a1d8799 (patch)
treee09697d8d9a59394170fa412276346d64b5b62e7 /src/numgen.c
parent15a1f5bd55735f6f65a6fd9e2e86bb4a3f5ac815 (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 <> Signed-off-by: Phil Sutter <> Signed-off-by: Pablo Neira Ayuso <>
Diffstat (limited to 'src/numgen.c')
1 files changed, 4 insertions, 3 deletions
diff --git a/src/numgen.c b/src/numgen.c
index 19a4a9ce..aa6da490 100644
--- a/src/numgen.c
+++ b/src/numgen.c
@@ -30,10 +30,11 @@ static const char *numgen_type_str(enum nft_ng_types type)
static void numgen_expr_print(const struct expr *expr, struct output_ctx *octx)
- printf("numgen %s mod %u", numgen_type_str(expr->numgen.type),
- expr->numgen.mod);
+ nft_print(octx, "numgen %s mod %u",
+ numgen_type_str(expr->numgen.type),
+ expr->numgen.mod);
if (expr->numgen.offset)
- printf(" offset %u", expr->numgen.offset);
+ nft_print(octx, " offset %u", expr->numgen.offset);
static bool numgen_expr_cmp(const struct expr *e1, const struct expr *e2)