diff options
Diffstat (limited to 'rfc1035/rfc1035dump.c')
| -rw-r--r-- | rfc1035/rfc1035dump.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/rfc1035/rfc1035dump.c b/rfc1035/rfc1035dump.c new file mode 100644 index 0000000..6b62a5e --- /dev/null +++ b/rfc1035/rfc1035dump.c @@ -0,0 +1,170 @@ +/* +** Copyright 1998 - 2000 Double Precision, Inc. +** See COPYING for distribution information. +*/ + +#include "rfc1035.h" +#include <stdlib.h> +#include <arpa/inet.h> + + +static void print_hostname(FILE *f, const char *p) +{ + for ( ; *p; p++) + { + if (*p < ' ' || *p >= 127) + { + fprintf(f, "\\%03o", (int)(unsigned char)*p); + continue; + } + + if (*p == '\\') + { + fprintf(f, "\\\\"); + continue; + } + putc(*p, f); + } +} + +static void tostr_callback(const char *ptr, void *vp) +{ + FILE *fp=*(FILE **)vp; + + fprintf(fp, "%s", ptr); +} + +void rfc1035_dump(struct rfc1035_reply *r, FILE *f) +{ +unsigned n; +char namebuf[RFC1035_MAXNAMESIZE+1]; +char timebuf[RFC1035_MAXTIMEBUFSIZE+1]; +char ipbuf[RFC1035_NTOABUFSIZE]; +struct rfc1035_reply *qr; + + fprintf(f, ";;HEADER"); + + rfc1035_ntoa((const RFC1035_ADDR *)&r->server_addr, ipbuf); + + fprintf(f, " (server %s)", ipbuf); + + fprintf(f, ":\n;; Bytes: %ld\n", + (long)r->replylen); + + fprintf(f, ";; Opcode: %s\n", + rfc1035_opcode_itostr(r->opcode)); + fprintf(f, ";; Flags:"); + if (r->qr) + fprintf(f, " qr"); + if (r->aa) + fprintf(f, " aa"); + if (r->tc) + fprintf(f, " tc"); + if (r->rd) + fprintf(f, " rd"); + if (r->ra) + fprintf(f, " ra"); + if (r->ad) + fprintf(f, " ad"); + if (r->cd) + fprintf(f, " cd"); + fprintf(f, "\n;; Status: %s\n", rfc1035_rcode_itostr(r->rcode)); + fprintf(f, ";; # questions: %u\n", r->qdcount); + fprintf(f, ";; # answers: %u\n", r->ancount); + fprintf(f, ";; # authoritative: %u\n", r->nscount); + fprintf(f, ";; # additional: %u\n", r->arcount); + + fprintf(f, ";;\n;;QUESTIONS:\n"); + for (n=0; n<r->qdcount; n++) + { + fprintf(f, ";; "); + print_hostname(f, rfc1035_replyhostname(r, r->qdptr[n].name, + namebuf)); + fprintf(f,".\t%s ", + rfc1035_class_itostr(r->qdptr[n].qclass)); + + rfc1035_type_itostr(r->qdptr[n].qtype, tostr_callback, &f); + + fprintf(f, "\n"); + } + + fprintf(f, "\n;;ANSWERS:\n"); + for (qr=r; qr; qr=qr->next) + { + for (n=0; n<qr->ancount; n++) + { + char *c; + + fprintf(f, " "); + print_hostname(f, + rfc1035_replyhostname(qr, + qr->anptr[n] + .rrname, + namebuf)); + fprintf(f, ".\t%s\t%s ", + rfc1035_fmttime(qr->anptr[n].ttl, timebuf), + rfc1035_class_itostr(qr->anptr[n].rrclass)); + + rfc1035_type_itostr(qr->anptr[n].rrtype, tostr_callback, + &f); + + c=rfc1035_dumprrdata(qr, qr->anptr+n); + if (c) + { + fprintf(f, "\t%s", c); + free(c); + } + fprintf(f, "\n"); + } + } + fprintf(f, "\n;;AUTHORITATIVE:\n"); + for (n=0; n<r->nscount; n++) + { + char *c; + + fprintf(f, " "); + print_hostname(f, rfc1035_replyhostname(r, + r->nsptr[n].rrname, + namebuf)); + fprintf(f, ".\t%s\t%s ", + rfc1035_fmttime(r->nsptr[n].ttl, timebuf), + rfc1035_class_itostr(r->nsptr[n].rrclass)); + + rfc1035_type_itostr(r->nsptr[n].rrtype, tostr_callback, &f); + + c=rfc1035_dumprrdata(r, r->nsptr+n); + if (c) + { + fprintf(f, "\t%s", c); + free(c); + } + fprintf(f, "\n"); + } + + fprintf(f, "\n;;ADDITIONAL:\n"); + for (n=0; n<r->arcount; n++) + { + char *c; + + if (r->arptr[n].rrtype == RFC1035_TYPE_OPT) + continue; + + fprintf(f, " "); + print_hostname(f, rfc1035_replyhostname(r, + r->arptr[n].rrname, + namebuf)); + fprintf(f, ".\t%s\t%s ", + rfc1035_fmttime(r->arptr[n].ttl, timebuf), + rfc1035_class_itostr(r->arptr[n].rrclass)); + + rfc1035_type_itostr(r->arptr[n].rrtype, tostr_callback, &f); + + c=rfc1035_dumprrdata(r, r->arptr+n); + if (c) + { + fprintf(f, "\t%s", c); + free(c); + } + fprintf(f, "\n"); + } +} |