adh-opts.c File Reference

#include "adnshost.h"

Include dependency graph for adh-opts.c:

Go to the source code of this file.

Typedefs
typedef int	comparer_type(const char **optp, const struct optioninfo *entry)

Functions
static void	printusage (void)
void	of_version (const struct optioninfo *oi, const char *arg, const char *arg2)
void	of_help (const struct optioninfo *oi, const char *arg, const char *arg2)
static int	oc_long (const char **optp, const struct optioninfo *entry)
static int	oc_short (const char **optp, const struct optioninfo *entry)
static const struct optioninfo *	find1 (const char **optp, const struct optioninfo *table, comparer_type *comparer)
static const struct optioninfo *	find (const char **optp, const char *prefix, comparer_type *comparer)
const struct optioninfo *	opt_findl (const char *opt)
const struct optioninfo *	opt_finds (const char **optp)
static void	noninvert (const struct optioninfo *oip) NONRETURNING
void	opt_do (const struct optioninfo *oip, int invert, const char *arg, const char *arg2)

Variables
int	ov_env =1
int	ov_pipe =0
int	ov_asynch =0
int	ov_verbose = 0
adns_rrtype	ov_type = adns_r_none
int	ov_search =0
int	ov_qc_query =0
int	ov_qc_anshost =0
int	ov_qc_cname =1
int	ov_tcp =0
int	ov_cname =0
int	ov_format =fmt_default
char *	ov_id = 0
struct perqueryflags_remember	ov_pqfr = { 1,1,1, tm_none }
static const struct optioninfo	global_options []
static const struct optioninfo	perquery_options []

Typedef Documentation

comparer_type

typedef int comparer_type(const char **optp, const struct optioninfo *entry)

Definition at line 288 of file adh-opts.c.

Function Documentation

find()

static const struct optioninfo * find ( const char **  optp, const char *  prefix, comparer_type *  comparer  )

static

Definition at line 316 of file adh-opts.c.

                                              {
  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;
}

find1()

static const struct optioninfo * find1 ( const char **  optp, const struct optioninfo *  table, comparer_type *  comparer  )

static

Definition at line 306 of file adh-opts.c.

                                               {
  for (;;) {
    if (table->type == ot_end) return 0;
    if (comparer(optp,table)) return table;
    table++;
  }
}

Referenced by FileCompareBothWild(), and find().

noninvert()

static void noninvert ( const struct optioninfo *  oip )

static

Definition at line 335 of file adh-opts.c.

                                                    {
  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 : "");
}

Referenced by opt_do().

oc_long()

static int oc_long ( const char **  optp, const struct optioninfo *  entry  )

static

Definition at line 290 of file adh-opts.c.

                                                                      {
  return entry->lopt && !strcmp(*optp,entry->lopt);
}

Referenced by opt_findl().

oc_short()

static int oc_short ( const char **  optp, const struct optioninfo *  entry  )

static

Definition at line 294 of file adh-opts.c.

                                                                       {
  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;
}

Referenced by opt_finds().

of_help()

void of_help	(	const struct optioninfo *	oi,
		const char *	arg,
		const char *	arg2
	)

Definition at line 282 of file adh-opts.c.

                                                                             {
  printusage();
  if (fclose(stdout)) sysfail("finish writing output",errno);
  quitnow(0);
}

of_version()

void of_version	(	const struct optioninfo *	oi,
		const char *	arg,
		const char *	arg2
	)

Definition at line 278 of file adh-opts.c.

                                                                                {
  VERSION_PRINT_QUIT("adnshost");
}

opt_do()

void opt_do	(	const struct optioninfo *	oip,
		int	invert,
		const char *	arg,
		const char *	arg2
	)

Definition at line 342 of file adh-opts.c.

                                           {
  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: case ot_funcarg2:
    if (invert) noninvert(oip);
    oip->func(oip,arg,arg2);
    return;
  default:
    abort();
  }
}

Referenced by process_optarg().

opt_findl()

const struct optioninfo * opt_findl

(

const char *

opt

)

Definition at line 331 of file adh-opts.c.

{ return find(&opt,"--",oc_long); }

Referenced by process_optarg().

opt_finds()

const struct optioninfo * opt_finds

(

const char **

optp

)

Definition at line 332 of file adh-opts.c.

{ return find(optp,"-",oc_short); }

Referenced by process_optarg().

printusage()

static void printusage ( void  )

static

Definition at line 131 of file adh-opts.c.

                             {
  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_funcarg2:
    assert(!oip->sopt);
    l= (maxlopt + maxsopt - 2 -
        (strlen(oip->lopt) + strlen(oip->argdesc) + strlen(oip->argdesc2)));
      printf(" --%s <%s> <%s>%*s%s\n",
         oip->lopt, oip->argdesc, oip->argdesc2,
         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);
}

Referenced by of_help().

Variable Documentation

global_options

const struct optioninfo global_options[]

static

Definition at line 43 of file adh-opts.c.

Referenced by find(), GlobalOptions_CreateInstance(), printusage(), and test_GlobalOptions().

ov_asynch

int ov_asynch =0

Definition at line 35 of file adh-opts.c.

Referenced by ensure_adns_init(), and main().

ov_cname

int ov_cname =0

Definition at line 39 of file adh-opts.c.

Referenced by prep_query().

ov_env

int ov_env =1

Definition at line 35 of file adh-opts.c.

Referenced by ensure_adns_init().

ov_format

int ov_format =fmt_default

Definition at line 39 of file adh-opts.c.

Referenced by ensure_adns_init(), prep_query(), print_dnsfail(), and query_done().

ov_id

char* ov_id = 0

Definition at line 40 of file adh-opts.c.

Referenced by of_asynch_id(), prep_query(), and quitnow().

ov_pipe

int ov_pipe =0

Definition at line 35 of file adh-opts.c.

Referenced by main(), prep_query(), and read_stdin().

ov_pqfr

struct perqueryflags_remember ov_pqfr = { 1,1,1, tm_none }

Definition at line 41 of file adh-opts.c.

Referenced by prep_query().

ov_qc_anshost

int ov_qc_anshost =0

Definition at line 38 of file adh-opts.c.

Referenced by prep_query().

ov_qc_cname

int ov_qc_cname =1

Definition at line 38 of file adh-opts.c.

Referenced by prep_query().

ov_qc_query

int ov_qc_query =0

Definition at line 38 of file adh-opts.c.

Referenced by prep_query().

ov_search

int ov_search =0

Definition at line 38 of file adh-opts.c.

Referenced by prep_query().

ov_tcp

int ov_tcp =0

Definition at line 39 of file adh-opts.c.

Referenced by prep_query().

ov_type

adns_rrtype ov_type = adns_r_none

Definition at line 37 of file adh-opts.c.

Referenced by of_ptr(), of_reverse(), of_type(), and query_do().

ov_verbose

int ov_verbose = 0

Definition at line 36 of file adh-opts.c.

Referenced by ensure_adns_init().

perquery_options

const struct optioninfo perquery_options[]

static

Definition at line 79 of file adh-opts.c.

Referenced by find(), and printusage().