We must make sure the buffer contains a \0 in the last position, to avoid printing trash by the last fprintf() call. This is needed because if the internal snprintf callback prints nothing, no \0 exists in the buffer. Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@xxxxxxxxx> --- src/utils.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/utils.c b/src/utils.c index 96c8bf2..8a7c521 100644 --- a/src/utils.c +++ b/src/utils.c @@ -189,6 +189,8 @@ int nft_fprintf(FILE *fp, void *obj, uint32_t type, uint32_t flags, size_t bufsiz = sizeof(_buf); int ret; + buf[0] = '\0'; + ret = snprintf_cb(buf, bufsiz, obj, type, flags); if (ret < 0) goto out; @@ -200,6 +202,8 @@ int nft_fprintf(FILE *fp, void *obj, uint32_t type, uint32_t flags, if (buf == NULL) return -1; + buf[0] = '\0'; + ret = snprintf_cb(buf, bufsiz, obj, type, flags); if (ret < 0) goto out; -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
