X-Git-Url: https://git.distorted.org.uk/~mdw/adns/blobdiff_plain/8312a1c218393182c63ca6996b56d7d33f6c48b3..5c596e4d1958e60ffdf88aa8500581b94988cc5c:/src/internal.h?ds=sidebyside diff --git a/src/internal.h b/src/internal.h index cd58d7a..ab68ead 100644 --- a/src/internal.h +++ b/src/internal.h @@ -22,12 +22,21 @@ typedef unsigned char byte; #define TCPMS 30000 #define LOCALRESOURCEMS 20 -#define DNS_UDPPORT 53 +#define DNS_PORT 53 #define DNS_MAXUDP 512 #define DNS_MAXDOMAIN 255 #define DNS_HDRSIZE 12 #define DNS_CLASS_IN 1 +typedef enum { + rcode_noerror, + rcode_formaterror, + rcode_servfail, + rcode_nxdomain, + rcode_notimp, + rcode_refused +} dns_rcode; + /* Shared data structures */ typedef union { @@ -50,8 +59,13 @@ typedef union { } qcontext; typedef struct { - unsigned long searchkey; /* flags and typecode swapped */ adns_rrtype type; + int rrsz; + adns_status (*get_fn)(adns_state ads, adns_query qu, int serv, + const byte *dgram, int dglen, + int *cbyte_io, int max, + int nsstart, int arcount, int *arstart_io, + int roff, int *rcount_io); } typeinfo; struct adns__query { @@ -68,7 +82,7 @@ struct adns__query { unsigned long udpsent, tcpfailed; /* bitmap indexed by server */ struct timeval timeout; byte *querymsg; - int querylen; + int querylen, cnameoff, rrsoff; qcontext context; char owner[1]; /* After the owner name and nul comes the query message, pointed to by querymsg */ @@ -150,6 +164,7 @@ void adns__diag(adns_state ads, int serv, const char *fmt, ...) PRINTFFORMAT(3,4 int adns__vbuf_ensure(vbuf *vb, int want); int adns__vbuf_append(vbuf *vb, const byte *data, int len); +int adns__vbuf_malloc(vbuf *vb, size_t len); /* 1=>success, 0=>realloc failed */ void adns__vbuf_appendq(vbuf *vb, const byte *data, int len); void adns__vbuf_init(vbuf *vb); @@ -159,6 +174,7 @@ int adns__setnonblock(adns_state ads, int fd); /* => errno value */ /* From submit.c: */ void adns__query_nomem(adns_state ads, adns_query qu); +void adns__query_finish(adns_state ads, adns_query qu, adns_status stat); void adns__query_fail(adns_state ads, adns_query qu, adns_status stat); /* From query.c: */ @@ -166,11 +182,35 @@ void adns__query_fail(adns_state ads, adns_query qu, adns_status stat); void adns__query_udp(adns_state ads, adns_query qu, struct timeval now); void adns__query_tcp(adns_state ads, adns_query qu, struct timeval now); adns_status adns__mkquery(adns_state ads, const char *owner, int ol, int id, - adns_rrtype type, adns_queryflags flags); + const typeinfo *typei, adns_queryflags flags); /* From reply.c: */ -void adns__procdgram(adns_state ads, const byte *dgram, int len, int serv); +void adns__procdgram(adns_state ads, const byte *dgram, int len, + int serv, struct timeval now); + +/* From types.c: */ + +const typeinfo *adns__findtype(adns_rrtype type); + +/* From parse.c: */ + +int vbuf__append_quoted1035(vbuf *vb, const byte *buf, int len); + +adns_status adns__get_label(const byte *dgram, int dglen, int *max_io, + int *cbyte_io, int *lablen_r, int *labstart_r, + int *namelen_io); +adns_status adns__get_domain_perm(adns_state ads, adns_query qu, int serv, + const byte *dgram, int dglen, + int *cbyte_io, int max, int *domainstart_r); +adns_status adns__get_domain_temp(adns_state ads, adns_query qu, int serv, + const byte *dgram, int dglen, + int *cbyte_io, int max, int *domainstart_r); +adns_status adns__get_rr_temp(adns_state ads, adns_query qu, int serv, + const byte *dgram, int dglen, int *cbyte_io, + int *type_r, int *class_r, int *rdlen_r, int *rdstart_r, + const byte *eo_dgram, int eo_dglen, int eo_cbyte, + int *eo_matched_r); /* From event.c: */ @@ -192,6 +232,9 @@ static inline void timevaladd(struct timeval *tv_io, long ms) { static inline int ctype_whitespace(int c) { return c==' ' || c=='\n' || c=='\t'; } static inline int ctype_digit(int c) { return c>='0' && c<='9'; } +static inline int ctype_alpha(int c) { + return (c >= 'a' && c <= 'z') || (c >= 'A' || c <= 'Z'); +} /* Useful macros */ @@ -216,4 +259,8 @@ static inline int ctype_digit(int c) { return c>='0' && c<='9'; } #define LIST_UNLINK(list,node) LIST_UNLINK_PART(list,node,) #define LIST_LINK_TAIL(list,node) LIST_LINK_TAIL_PART(list,node,) +#define GETIL_B(cb) (dgram[(cb)++]) +#define GET_B(cb,tv) ((tv)= GETIL_B((cb))) +#define GET_W(cb,tv) ((tv)=0, (tv)|=(GETIL_B((cb))<<8), (tv)|=GETIL_B(cb), (tv)) + #endif