Update copyright dates and documentation.

[adns.git] / client / adnslogres.c

diff --git a/client/adnslogres.c b/client/adnslogres.c
index b8e5f52a000b2553d50d1e2b8bcf369dc838ee10..3aa7e0eea867e619a4e9c577760e1eb1323c9240 100644 (file)
--- a/client/adnslogres.c
+++ b/client/adnslogres.c
@@ -4,12 +4,12 @@
  */
 /*
  *  This file is
- *   Copyright (C) 1999 Tony Finch <dot@dotat.at>
+ *   Copyright (C) 1999-2000 Tony Finch <dot@dotat.at>
  *   Copyright (C) 1999-2000 Ian Jackson <ian@davenant.greenend.org.uk>
  *
  *  It is part of adns, which is
  *    Copyright (C) 1997-2000 Ian Jackson <ian@davenant.greenend.org.uk>
- *    Copyright (C) 1999 Tony Finch <dot@dotat.at>
+ *    Copyright (C) 1999-2000 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
@@ -47,8 +47,13 @@ static const char * const cvsid =
 #include "config.h"
 #include "adns.h"
 
+#ifdef ADNS_REGRESS_TEST
+# include "hredirect.h"
+#endif
+
 /* maximum number of concurrent DNS queries */
-#define MAXPENDING 1000
+#define MAXMAXPENDING 64000
+#define DEFMAXPENDING 2000
 
 /* maximum length of a line */
 #define MAXLINE 1024
@@ -57,7 +62,8 @@ static const char * const cvsid =
 #define OPT_DEBUG 1
 #define OPT_POLL 2
 
-static const char *progname;
+static const char *const progname= "adnslogres";
+static const char *config_text;
 
 #define guard_null(str) ((str) ? (str) : "")
 
@@ -157,46 +163,55 @@ static logline *readline(FILE *inf, adns_state adns, int opts) {
   return NULL;
 }
        
-static void proclog(FILE *inf, FILE *outf, int opts) {
+static void proclog(FILE *inf, FILE *outf, int maxpending, int opts) {
   int eof, err, len;
   adns_state adns;
   adns_answer *answer;
   logline *head, *tail, *line;
+  adns_initflags initflags;
 
-  errno= adns_init(&adns, (opts & OPT_DEBUG) ? adns_if_debug : 0, 0);
+  initflags= (opts & OPT_DEBUG) ? adns_if_debug : 0;
+  if (config_text) {
+    errno= adns_init_strcfg(&adns, initflags, stderr, config_text);
+  } else {
+    errno= adns_init(&adns, initflags, 0);
+  }
   if (errno) aargh("adns_init");
   head= tail= readline(inf, adns, opts);
   len= 1; eof= 0;
   while (head) {
-    if (opts & OPT_DEBUG)
-      msg("%d in queue; checking %.*s", len,
-         head->rest-head->addr, guard_null(head->addr));
-    if (eof || len > MAXPENDING) {
-      if (opts & OPT_POLL)
-       err= adns_wait_poll(adns, &head->query, &answer, NULL);
-      else
-       err= adns_wait(adns, &head->query, &answer, NULL);
-    } else {
-      err= adns_check(adns, &head->query, &answer, NULL);
-    }
-    if (err != EAGAIN) {
+    while (head) {
+      if (opts & OPT_DEBUG)
+       msg("%d in queue; checking %.*s", len,
+           head->rest-head->addr, guard_null(head->addr));
+      if (eof || len >= maxpending) {
+       if (opts & OPT_POLL)
+         err= adns_wait_poll(adns, &head->query, &answer, NULL);
+       else
+         err= adns_wait(adns, &head->query, &answer, NULL);
+      } else {
+       err= adns_check(adns, &head->query, &answer, NULL);
+      }
+      if (err == EAGAIN) break;
+      if (err) {
+       fprintf(stderr, "%s: adns_wait/check: %s", progname, strerror(err));
+       exit(1);
+      }
       printline(outf, head->start, head->addr, head->rest,
                answer->status == adns_s_ok ? *answer->rrs.str : NULL);
       line= head; head= head->next;
-      free(line); free(answer);
+      free(line);
+      free(answer);
       len--;
     }
     if (!eof) {
       line= readline(inf, adns, opts);
-      if (!line)
+      if (line) {
+        if (!head) head= line;
+        else tail->next= line;
+        tail= line; len++;
+      } else {
        eof= 1;
-      else {
-       if (!head)
-         head= line;
-       else
-         tail->next= line;
-       tail= line;
-       len++;
       }
     }
   }
@@ -204,23 +219,30 @@ static void proclog(FILE *inf, FILE *outf, int opts) {
 }
 
 static void usage(void) {
-  fprintf(stderr, "usage: %s [-d] [-p] [logfile]\n", progname);
+  fprintf(stderr, "usage: %s [-d] [-p] [-c concurrency] [-C config] [logfile]\n",
+         progname);
   exit(1);
 }
 
 int main(int argc, char *argv[]) {
-  int c, opts;
+  int c, opts, maxpending;
+  extern char *optarg;
   FILE *inf;
 
-  progname= strrchr(*argv, '/');
-  if (progname)
-    progname++;
-  else
-    progname= *argv;
+  maxpending= DEFMAXPENDING;
   opts= 0;
-
-  while ((c= getopt(argc, argv, "dp")) != -1)
+  while ((c= getopt(argc, argv, "c:C:dp")) != -1)
     switch (c) {
+    case 'c':
+      maxpending= atoi(optarg);
+      if (maxpending < 1 || maxpending > MAXMAXPENDING) {
+       fprintf(stderr, "%s: unfeasible concurrency %d\n", progname, maxpending);
+       exit(1);
+      }
+      break;
+    case 'C':
+      config_text= optarg;
+      break;
     case 'd':
       opts|= OPT_DEBUG;
       break;
@@ -245,7 +267,7 @@ int main(int argc, char *argv[]) {
   if (!inf)
     aargh("couldn't open input");
 
-  proclog(inf, stdout, opts);
+  proclog(inf, stdout, maxpending, opts);
 
   if (fclose(inf))
     aargh("fclose input");