diff options
Diffstat (limited to 'src/libs6dns/s6dns_message_parse_question_nodecode.c')
-rw-r--r-- | src/libs6dns/s6dns_message_parse_question_nodecode.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/libs6dns/s6dns_message_parse_question_nodecode.c b/src/libs6dns/s6dns_message_parse_question_nodecode.c new file mode 100644 index 0000000..f6cc4a7 --- /dev/null +++ b/src/libs6dns/s6dns_message_parse_question_nodecode.c @@ -0,0 +1,28 @@ +/* ISC license. */ + +#include <stdint.h> +#include <errno.h> + +#include <skalibs/posixishard.h> +#include <skalibs/uint16.h> + +#include <s6-dns/s6dns-constants.h> +#include <s6-dns/s6dns-domain.h> +#include <s6-dns/s6dns-message.h> + +int s6dns_message_parse_question_nodecode (s6dns_message_counts_t *counts, s6dns_domain_t *name, uint16_t *qtypep, char const *packet, unsigned int packetlen, unsigned int *pos) +{ + s6dns_domain_t d ; + uint16_t qtype ; + uint16_t qclass ; + if (!counts->qd) return (errno = EINVAL, 0) ; + if (!s6dns_message_get_domain_nodecode(&d, packet, packetlen, pos)) return 0 ; + if (*pos + 4 > packetlen) return (errno = EPROTO, 0) ; + uint16_unpack_big(packet + *pos, &qtype) ; *pos += 2 ; + uint16_unpack_big(packet + *pos, &qclass) ; *pos += 2 ; + if (qclass != S6DNS_C_IN) return (errno = ENOTSUP, 0) ; + counts->qd-- ; + *name = d ; + *qtypep = qtype ; + return 1 ; +} |