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-rw-r--r--adns-0.6/client/adh-opts.c337
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diff --git a/adns-0.6/client/adh-opts.c b/adns-0.6/client/adh-opts.c
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+++ b/adns-0.6/client/adh-opts.c
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+/*
+ * adh-opts.c
+ * - useful general-purpose resolver client program
+ * option handling tables etc.
+ */
+/*
+ * This file is
+ * Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
+ *
+ * It is part of adns, which is
+ * Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
+ * Copyright (C) 1999 Tony Finch <dot@dotat.at>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include "adnshost.h"
+
+int ov_env=1, ov_pipe=0, ov_asynch=0;
+int ov_verbose= 0;
+adns_rrtype ov_type= adns_r_none;
+int ov_search=0, ov_qc_query=0, ov_qc_anshost=0, ov_qc_cname=1;
+int ov_tcp=0, ov_cname=0, ov_format=fmt_default;
+char *ov_id= 0;
+struct perqueryflags_remember ov_pqfr = { 1,1,1, tm_none };
+
+static const struct optioninfo global_options[]= {
+ { ot_desconly, "global binary options:" },
+ { ot_flag, "Do not look at environment variables at all",
+ "e", "env", &ov_env, 0 },
+ { ot_flag, "Read queries on stdin instead of using args",
+ "f", "pipe", &ov_pipe, 1 },
+ { ot_flag, "Allow answers to be reordered",
+ "a", "asynch", &ov_asynch, 1 },
+
+ { ot_desconly, "answer/error output format and destination (see below):" },
+ { ot_value, "Answers to stdout, errors as messages to stderr (default)",
+ "Fs", "fmt-simple", &ov_format, fmt_simple },
+ { ot_value, "Answers and errors both to stdout in parseable format",
+ "Fi", "fmt-inline", &ov_format, fmt_inline },
+ { ot_value, "Fully-parseable output format (default for --asynch)",
+ "Fa", "fmt-asynch", &ov_format, fmt_asynch },
+
+ { ot_desconly, "global verbosity level:" },
+ { ot_value, "Do not print anything to stderr",
+ "Vq", "quiet", &ov_verbose, adns_if_noerrprint },
+ { ot_value, "Report unexpected kinds of problem only (default)",
+ "Vn", "no-quiet", &ov_verbose, 0 },
+ { ot_value, "Debugging mode",
+ "Vd", "debug", &ov_verbose, adns_if_debug },
+
+ { ot_desconly, "other global options:" },
+ { ot_func, "Print usage information",
+ 0, "help", 0,0, of_help },
+
+ { ot_end }
+};
+
+static const struct optioninfo perquery_options[]= {
+ { ot_desconly, "per-query options:" },
+ { ot_funcarg, "Query type (see below)",
+ "t", "type", 0,0, &of_type, "type" },
+ { ot_funcarg, "Do reverse query (address -> name lookup)",
+ "i", "ptr", 0,0, &of_ptr, "addr" },
+
+ { ot_desconly, "per-query binary options:" },
+ { ot_flag, "Use the search list",
+ "s", "search", &ov_search, 1 },
+ { ot_flag, "Let query domains contain quote-requiring chars",
+ "Qq", "qc-query", &ov_qc_query, 1 },
+ { ot_flag, "Let hostnames in answers contain ...",
+ "Qa", "qc-anshost", &ov_qc_anshost, 1 },
+ { ot_flag, "Prevent CNAME target domains from containing ...",
+ "Qc", "qc-cname", &ov_qc_cname, 0 },
+ { ot_flag, "Force use of a virtual circuit",
+ "u", "tcp", &ov_tcp, 1 },
+ { ot_flag, "Do not display owner name in output",
+ "Do", "show-owner", &ov_pqfr.show_owner, 0 },
+ { ot_flag, "Do not display RR type in output",
+ "Dt", "show-type", &ov_pqfr.show_type, 0 },
+ { ot_flag, "Do not display CNAME target in output",
+ "Dc", "show-cname", &ov_pqfr.show_cname, 0 },
+
+ { ot_desconly, "per-query TTL mode (NB TTL is minimum across all info in reply):" },
+ { ot_value, "Show the TTL as a TTL",
+ "Tt", "ttl-ttl", &ov_pqfr.ttl, tm_rel },
+ { ot_value, "Show the TTL as a time_t when the data might expire",
+ "Ta", "ttl-abs", &ov_pqfr.ttl, tm_abs },
+ { ot_value, "Do not show the TTL (default)",
+ "Tn", "no-ttl", &ov_pqfr.ttl, tm_none },
+
+ { ot_desconly, "per-query CNAME handling mode:" },
+ { ot_value, "Call it an error if a CNAME is found",
+ "Cf", "cname-reject", &ov_cname, adns_qf_cname_forbid },
+ { ot_value, "Allow references to CNAMEs in other RRs",
+ "Cl", "cname-loose", &ov_cname, adns_qf_cname_loose },
+ { ot_value, "CNAME ok for query domain, but not in RRs (default)",
+ "Cs", "cname-ok", &ov_cname, 0 },
+
+ { ot_desconly, "asynchronous/pipe mode options:" },
+ { ot_funcarg, "Set <id>, default is decimal sequence starting 0",
+ 0, "asynch-id", 0,0, &of_asynch_id, "id" },
+ { ot_funcarg, "Cancel the query with id <id> (no error if not found)",
+ 0, "cancel-id", 0,0, &of_cancel_id, "id" },
+
+ { ot_end }
+};
+
+static void printusage(void) {
+ static const struct optioninfo *const all_optiontables[]= {
+ global_options, perquery_options, 0
+ };
+
+ const struct optioninfo *const *oiap, *oip=0;
+ int maxsopt, maxlopt, l;
+
+ maxsopt= maxlopt= 0;
+
+ for (oiap=all_optiontables; *oiap; oiap++) {
+ for (oip=*oiap; oip->type != ot_end; oip++) {
+ if (oip->type == ot_funcarg) continue;
+ if (oip->sopt) { l= strlen(oip->sopt); if (l>maxsopt) maxsopt= l; }
+ if (oip->lopt) {
+ l= strlen(oip->lopt);
+ if (oip->type == ot_flag && !oip->value) l+= 3;
+ if (l>maxlopt) maxlopt= l;
+ }
+ }
+ }
+
+ fputs("usage: adnshost [global-opts] [query-opts] query-domain\n"
+ " [[query-opts] query-domain ...]\n"
+ " adnshost [global-opts] [query-opts] -f|--pipe\n",
+ stdout);
+
+ for (oiap=all_optiontables; *oiap; oiap++) {
+ putchar('\n');
+ for (oip=*oiap; oip->type != ot_end; oip++) {
+ switch (oip->type) {
+ case ot_flag:
+ if (!oip->value) {
+ if (oip->sopt) {
+ printf(" +%-*s --no-%-*s %s\n",
+ maxsopt, oip->sopt,
+ maxlopt-2, oip->lopt,
+ oip->desc);
+ } else {
+ printf(" --no-%-*s %s\n",
+ maxlopt+maxsopt+1, oip->lopt,
+ oip->desc);
+ }
+ break;
+ }
+ case ot_value: case ot_func: /* fall through */
+ if (oip->sopt) {
+ printf(" -%-*s --%-*s %s\n",
+ maxsopt, oip->sopt,
+ maxlopt+1, oip->lopt,
+ oip->desc);
+ } else {
+ printf(" --%-*s %s\n",
+ maxlopt+maxsopt+3, oip->lopt,
+ oip->desc);
+ }
+ break;
+ case ot_funcarg:
+ if (oip->sopt) {
+ l= (maxlopt + maxsopt - 9 -
+ (strlen(oip->sopt) + strlen(oip->lopt) + 2*strlen(oip->argdesc)));
+ printf(" -%s<%s> / --%s <%s>%*s%s\n",
+ oip->sopt, oip->argdesc, oip->lopt, oip->argdesc,
+ l>2 ? l : 2, "",
+ oip->desc);
+ } else {
+ l= (maxlopt + maxsopt + 1 -
+ (strlen(oip->lopt) + strlen(oip->argdesc)));
+ printf(" --%s <%s>%*s%s\n",
+ oip->lopt, oip->argdesc,
+ l>2 ? l : 2, "",
+ oip->desc);
+ }
+ break;
+ case ot_desconly:
+ printf("%s\n", oip->desc);
+ break;
+ default:
+ abort();
+ }
+ }
+ }
+
+ printf("\nEscaping domains which might start with `-':\n"
+ " - %-*s Next argument is a domain, but more options may follow\n",
+ maxlopt+maxsopt+3, "<domain>");
+
+ fputs("\n"
+ "Query domains should always be quoted according to master file format.\n"
+ "\n"
+ "For binary options, --FOO and --no-FOO are opposites, as are\n"
+ "-X and +X. In each case the default is the one not listed.\n"
+ "Per query options stay set a particular way until they are reset,\n"
+ "whether they appear on the command line or on stdin.\n"
+ "All global options must preceed the first query domain.\n"
+ "\n"
+ "With -f, the input should be lines with either an option, possibly\n"
+ "with a value argument (separated from the option by a space if it's a long\n"
+ "option), or a domain (possibly preceded by a hyphen and a space to\n"
+ "distinguish it from an option).\n"
+ "\n"
+ "Output format is master file format without class or TTL by default:\n"
+ " [<owner>] [<ttl>] [<type>] <data>\n"
+ "or if the <owner> domain refers to a CNAME and --show-cname is on\n"
+ " [<owner>] [<ttl>] CNAME <cname>\n"
+ " [<cname>] [<ttl>] <type> <data>\n"
+ "When a query fails you get an error message to stderr (with --fmt-simple).\n"
+ "Specify --fmt-inline for lines like this (broken here for readability):\n"
+ " ; failed <statustype> <statusnum> <statusabbrev> \\\n"
+ " [<owner>] [<ttl>] [<cname>] \"<status string>\"\n"
+ "If you use --fmt-asynch, which is the default for --asynch,\n"
+ "each answer (success or failure) is preceded by a line\n"
+ " <id> <nrrs> <statustype> <statusnum> <statusabbrev> \\\n"
+ " [<owner>] [<ttl>] [<cname>] \"<status string>\"\n"
+ "where <nrrs> is the number of RRs that follow and <cname> will be `$' or\n"
+ "the CNAME target; the CNAME indirection and error formats above are not used.\n"
+ "\n"
+ "Exit status:\n"
+ " 0 all went well\n"
+ " 1-6 at least one query failed with statustype:\n"
+ " 1 localfail )\n"
+ " 2 remotefail ) temporary errors\n"
+ " 3 tempfail __)_________________\n"
+ " 4 misconfig )\n"
+ " 5 misquery ) permanent errors\n"
+ " 6 permfail )\n"
+ " 10 system trouble\n"
+ " 11 usage problems\n"
+ "\n"
+ "Query types (see adns.h; default is addr):\n"
+ " ns soa ptr mx rp addr - enhanced versions\n"
+ " cname hinfo txt - types with only one version\n"
+ " a ns- soa- ptr- mx- rp- - _raw versions\n"
+ "Default is addr, or ptr for -i/--ptr queries\n",
+ stdout);
+ if (ferror(stdout)) sysfail("write usage message",errno);
+}
+
+void of_help(const struct optioninfo *oi, const char *arg) {
+ printusage();
+ if (fclose(stdout)) sysfail("finish writing output",errno);
+ exit(0);
+}
+
+typedef int comparer_type(const char **optp, const struct optioninfo *entry);
+
+static int oc_long(const char **optp, const struct optioninfo *entry) {
+ return entry->lopt && !strcmp(*optp,entry->lopt);
+}
+
+static int oc_short(const char **optp, const struct optioninfo *entry) {
+ const char *sopt;
+ int l;
+
+ sopt= entry->sopt;
+ if (!sopt) return 0;
+ l= strlen(sopt);
+ if (memcmp(*optp,sopt,l)) return 0;
+ (*optp) += l;
+ return 1;
+}
+
+static const struct optioninfo *find1(const char **optp,
+ const struct optioninfo *table,
+ comparer_type *comparer) {
+ for (;;) {
+ if (table->type == ot_end) return 0;
+ if (comparer(optp,table)) return table;
+ table++;
+ }
+}
+
+static const struct optioninfo *find(const char **optp,
+ const char *prefix,
+ comparer_type *comparer) {
+ const struct optioninfo *oip;
+ const char *opt;
+
+ opt= *optp;
+ oip= find1(optp,perquery_options,comparer);
+ if (oip) return oip;
+ oip= find1(optp,global_options,comparer);
+ if (!oip) usageerr("unknown option %s%s",prefix,opt);
+ if (ads) usageerr("global option %s%s specified after query domain(s)",prefix,opt);
+ return oip;
+}
+
+const struct optioninfo *opt_findl(const char *opt) { return find(&opt,"--",oc_long); }
+const struct optioninfo *opt_finds(const char **optp) { return find(optp,"-",oc_short); }
+
+static void noninvert(const struct optioninfo *oip) NONRETURNING;
+static void noninvert(const struct optioninfo *oip) {
+ usageerr("option %s%s%s%s%s may not be inverted",
+ oip->sopt ? "-" : "", oip->sopt ? oip->sopt : "",
+ oip->lopt && oip->sopt ? " / " : "",
+ oip->lopt ? "--" : "", oip->lopt ? oip->lopt : "");
+}
+
+void opt_do(const struct optioninfo *oip, const char *arg, int invert) {
+ switch (oip->type) {
+ case ot_flag:
+ assert(!arg);
+ *oip->storep= !invert;
+ return;
+ case ot_value:
+ assert(!arg);
+ if (invert) noninvert(oip);
+ *oip->storep= oip->value;
+ return;
+ case ot_func: case ot_funcarg:
+ if (invert) noninvert(oip);
+ oip->func(oip,arg);
+ return;
+ default:
+ abort();
+ }
+}
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