adh-main.c File Reference

#include "adnshost.h"

Include dependency graph for adh-main.c:

Go to the source code of this file.

Functions
void	quitnow (int rc)
void	sysfail (const char *what, int errnoval)
void	usageerr (const char *fmt,...)
void	outerr (void)
void *	xmalloc (size_t sz)
char *	xstrsave (const char *str)
void	of_config (const struct optioninfo *oi, const char *arg, const char *arg2)
void	of_type (const struct optioninfo *oi, const char *arg, const char *arg2)
static void	process_optarg (const char *arg, const char *const **argv_p, const char *value)
static void	read_stdin (void)
int	main (int argc, const char *const *argv)

Variables
int	rcode
const char *	config_text
static int	used
static int	avail
static char *	buf

Function Documentation

main()

int main	(	int argc	,
		const char *const *	argv
	)

Definition at line 224 of file adh-main.c.

                                            {
  struct timeval *tv, tvbuf;
  adns_query qu;
  void *qun_v;
  adns_answer *answer;
  int r, maxfd;
  fd_set readfds, writefds, exceptfds;
  const char *arg;
 
  ensure_adns_init();
 
  while ((arg= *++argv)) process_optarg(arg,&argv,0);
 
  if (!ov_pipe && !ads) usageerr("no domains given, and -f/--pipe not used; try --help");
 
  for (;;) {
    for (;;) {
      qu= ov_asynch ? 0 : outstanding.head ? outstanding.head->qu : 0;
      r= adns_check(ads,&qu,&answer,&qun_v);
      if ((r == EAGAIN) || (r == EWOULDBLOCK)) break;
      if (r == ESRCH) { if (!ov_pipe) goto x_quit; else break; }
      assert(!r);
      query_done(qun_v,answer);
    }
    maxfd= 0;
    FD_ZERO(&readfds);
    FD_ZERO(&writefds);
    FD_ZERO(&exceptfds);
    if (ov_pipe) {
      maxfd= 1;
      FD_SET(0,&readfds);
    }
    tv= 0;
    adns_beforeselect(ads, &maxfd, &readfds,&writefds,&exceptfds, &tv,&tvbuf,0);
    ADNS_CLEAR_ERRNO;
    r= select(maxfd, &readfds,&writefds,&exceptfds, tv);
    ADNS_CAPTURE_ERRNO;
    if (r == -1) {
      if (errno == EINTR) continue;
      sysfail("select",errno);
    }
    adns_afterselect(ads, maxfd, &readfds,&writefds,&exceptfds, 0);
    if (ov_pipe && FD_ISSET(0,&readfds)) read_stdin();
  }
x_quit:
  if (fclose(stdout)) outerr();
  quitnow(rcode);
}

of_config()

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

Definition at line 83 of file adh-main.c.

                                                                               {
  config_text= arg;
}

of_type()

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

Definition at line 87 of file adh-main.c.

                                                                             {
  static const struct typename {
    adns_rrtype type;
    const char *desc;
  } typenames[]= {
    /* enhanced versions */
    { adns_r_ns,     "ns"     },
    { adns_r_soa,    "soa"    },
    { adns_r_ptr,    "ptr"    },
    { adns_r_mx,     "mx"     },
    { adns_r_rp,     "rp"     },
    { adns_r_addr,   "addr"   },
 
    /* types with only one version */
    { adns_r_cname,  "cname"  },
    { adns_r_hinfo,  "hinfo"  },
    { adns_r_txt,    "txt"    },
 
    /* raw versions */
    { adns_r_a,        "a"    },
    { adns_r_ns_raw,   "ns-"  },
    { adns_r_soa_raw,  "soa-" },
    { adns_r_ptr_raw,  "ptr-" },
    { adns_r_mx_raw,   "mx-"  },
    { adns_r_rp_raw,   "rp-"  },
 
    { adns_r_none, 0 }
  };
 
  const struct typename *tnp;
 
  for (tnp=typenames;
       tnp->type && strcmp(arg,tnp->desc);
       tnp++);
  if (!tnp->type) usageerr("unknown RR type %s",arg);
  ov_type= tnp->type;
}

outerr()

void outerr

(

void

)

Definition at line 64 of file adh-main.c.

                  {
  sysfail("write to stdout",errno);
}

Referenced by main(), print_dnsfail(), print_status(), print_ttl(), print_withspace(), and query_done().

process_optarg()

static void process_optarg ( const char *  arg, const char *const **  argv_p, const char *  value  )

static

Definition at line 125 of file adh-main.c.

                                  {
  const struct optioninfo *oip;
  const char *arg2;
  int invert;
 
  if (arg[0] == '-' || arg[0] == '+') {
    if (arg[0] == '-' && arg[1] == '-') {
      if (!strncmp(arg,"--no-",5)) {
    invert= 1;
    oip= opt_findl(arg+5);
      } else {
    invert= 0;
    oip= opt_findl(arg+2);
      }
      if (oip->type == ot_funcarg) {
    arg= argv_p ? *++(*argv_p) : value;
    if (!arg) usageerr("option --%s requires a value argument",oip->lopt);
    arg2= 0;
      } else if (oip->type == ot_funcarg2) {
    assert(argv_p);
    arg= *++(*argv_p);
    arg2= arg ? *++(*argv_p) : 0;
    if (!arg || !arg2)
      usageerr("option --%s requires two more arguments", oip->lopt);
      } else {
    if (value) usageerr("option --%s does not take a value",oip->lopt);
    arg= 0;
    arg2= 0;
      }
      opt_do(oip,invert,arg,arg2);
    } else if (arg[0] == '-' && arg[1] == 0) {
      arg= argv_p ? *++(*argv_p) : value;
      if (!arg) usageerr("option `-' must be followed by a domain");
      query_do(arg);
    } else { /* arg[1] != '-', != '\0' */
      invert= (arg[0] == '+');
      ++arg;
      while (*arg) {
    oip= opt_finds(&arg);
    if (oip->type == ot_funcarg) {
      if (!*arg) {
        arg= argv_p ? *++(*argv_p) : value;
        if (!arg) usageerr("option -%s requires a value argument",oip->sopt);
      } else {
        if (value) usageerr("two values for option -%s given !",oip->sopt);
      }
      opt_do(oip,invert,arg,0);
      arg= "";
    } else {
      if (value) usageerr("option -%s does not take a value",oip->sopt);
      opt_do(oip,invert,0,0);
    }
      }
    }
  } else { /* arg[0] != '-' */
    query_do(arg);
  }
}

Referenced by main(), and read_stdin().

quitnow()

static void quitnow

(

int

rc

)

Definition at line 42 of file adh-main.c.

                     {
  if (ads) adns_finish(ads);
  free(buf);
  free(ov_id);
  exit(rc);
}

Referenced by main(), of_help(), sysfail(), and usageerr().

read_stdin()

static void read_stdin ( void  )

static

Definition at line 186 of file adh-main.c.

                             {
  int anydone, r;
  char *newline, *space;
 
  anydone= 0;
  while (!anydone || used) {
    while (!(newline= memchr(buf,'\n',used))) {
      if (used == avail) {
    avail += 20; avail <<= 1;
    buf= realloc(buf,avail);
    if (!buf) sysfail("realloc stdin buffer",errno);
      }
      do {
    r= read(0,buf+used,avail-used);
      } while (r < 0 && errno == EINTR);
      if (r == 0) {
    if (used) {
      /* fake up final newline */
      buf[used++]= '\n';
      r= 1;
    } else {
      ov_pipe= 0;
      return;
    }
      }
      if (r < 0) sysfail("read stdin",errno);
      used += r;
    }
    *newline++= 0;
    space= strchr(buf,' ');
    if (space) *space++= 0;
    process_optarg(buf,0,space);
    used -= (newline-buf);
    memmove(buf,newline,used);
    anydone= 1;
  }
}

Referenced by main().

sysfail()

void sysfail	(	const char *	what,
		int	errnoval
	)

Definition at line 49 of file adh-main.c.

                                             {
  fprintf(stderr,"adnshost failed: %s: %s\n",what,strerror(errnoval));
  quitnow(10);
}

Referenced by ensure_adns_init(), main(), of_help(), of_ptr(), of_reverse(), outerr(), print_dnsfail(), print_ttl(), printusage(), query_do(), query_done(), read_stdin(), test_SHDeleteKey(), and xmalloc().

usageerr()

void usageerr	(	const char *	fmt,
			...
	)

Definition at line 54 of file adh-main.c.

                                    {
  va_list al;
  fputs("adnshost usage error: ",stderr);
  va_start(al,fmt);
  vfprintf(stderr,fmt,al);
  va_end(al);
  putc('\n',stderr);
  quitnow(11);
}

Referenced by find(), main(), noninvert(), of_ptr(), of_reverse(), of_type(), prep_query(), and process_optarg().

xmalloc()

void * xmalloc

(

size_t

sz

)

Definition at line 68 of file adh-main.c.

                         {
  void *p;
 
  p= malloc(sz); if (!p) sysfail("malloc",sz);
  return p;
}

Referenced by xstrsave().

xstrsave()

char * xstrsave

(

const char *

str

)

Definition at line 75 of file adh-main.c.

                                {
  char *p;
 
  p= xmalloc(strlen(str)+1);
  strcpy(p,str);
  return p;
}

Variable Documentation

avail

int avail

static

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

Referenced by _bdf_readstream(), _test_peek_pipe(), AVISplitter_InputPin_PreConnect(), deflateSetDictionary(), drive_get_AvailableSpace(), HTTPREQ_QueryDataAvailable(), is_used_desc_packed(), mem_init(), MPEGSplitter_pre_connect(), read_stdin(), test_clock(), test_conn_close(), test_CreateNamedPipe(), test_http_read(), tt_face_load_kern(), and write_output_buffer().

buf

char* buf

static

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

Referenced by read_stdin().

config_text

const char* config_text

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

Referenced by ensure_adns_init(), and of_config().

rcode

int rcode

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

Referenced by adns__procdgram(), check_status(), and main().

used

int used

static

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

Referenced by __WideCharToMultiByte(), ApplyOrdinals(), build_zonemap_from_reg(), deflate_stored(), DPLAYX_PrivHeapAlloc(), get_length_dbcs(), get_length_sbcs(), inflate_table(), is_used_desc_packed(), MD5_Final(), MD5_Update(), mem_free(), mem_malloc(), mem_trim(), msi_save_string_table(), parse_attr(), ParseNoTildeEffect(), ParseTildeEffect(), pool_destroy(), read_stdin(), set_cookies(), SHELL_ArgifyW(), START_TEST(), tcp_remove_all(), test_file_monikers(), test_other_invalid_parameters(), test_RtlIpv4AddressToStringEx(), test_sockets_get_used_count(), test_tcp_recv_ooseq_double_FINs(), test_tcp_rto_timeout_impl(), test_tcp_rto_timeout_syn_sent_impl(), test_tcp_tx_full_window_lost(), test_tcp_zwp_timeout_impl(), test_URLSubRegQueryA(), udp_remove_all(), userlist(), wcstombs_dbcs_slow(), wcstombs_sbcs_slow(), WideCharToMultiByte(), wine_cp_wcstombs(), and xmlParserInputShrink().