contrib/unbound-host.nagios.patch

   1 Index: smallapp/unbound-host.c
   2 ===================================================================
   3 --- smallapp/unbound-host.c     (revision 2115)
   4 +++ smallapp/unbound-host.c     (working copy)
   5 @@ -62,9 +62,18 @@
   6  #include "libunbound/unbound.h"
   7  #include <ldns/ldns.h>
   8
   9 +/** status variable ala nagios */
  10 +#define FINAL_STATUS_OK                0
  11 +#define FINAL_STATUS_WARNING   1
  12 +#define FINAL_STATUS_CRITICAL  2
  13 +#define FINAL_STATUS_UNKNOWN   3
  14 +
  15  /** verbosity for unbound-host app */
  16  static int verb = 0;
  17
  18 +/** variable to determine final output */
  19 +static int final_status = FINAL_STATUS_UNKNOWN;
  20 +
  21  /** Give unbound-host usage, and exit (1). */
  22  static void
  23  usage()
  24 @@ -93,7 +102,7 @@
  25         printf("Version %s\n", PACKAGE_VERSION);
  26         printf("BSD licensed, see LICENSE in source package for details.\n");
  27         printf("Report bugs to %s\n", PACKAGE_BUGREPORT);
  28 -       exit(1);
  29 +       exit(FINAL_STATUS_UNKNOWN);
  30  }
  31
  32  /** determine if str is ip4 and put into reverse lookup format */
  33 @@ -138,7 +147,7 @@
  34         *res = strdup(buf);
  35         if(!*res) {
  36                 fprintf(stderr, "error: out of memory\n");
  37 -               exit(1);
  38 +               exit(FINAL_STATUS_UNKNOWN);
  39         }
  40         return 1;
  41  }
  42 @@ -158,7 +167,7 @@
  43         }
  44         if(!res) {
  45                 fprintf(stderr, "error: out of memory\n");
  46 -               exit(1);
  47 +               exit(FINAL_STATUS_UNKNOWN);
  48         }
  49         return res;
  50  }
  51 @@ -172,7 +181,7 @@
  52                 if(r == 0 && strcasecmp(t, "TYPE0") != 0 &&
  53                         strcmp(t, "") != 0) {
  54                         fprintf(stderr, "error unknown type %s\n", t);
  55 -                       exit(1);
  56 +                       exit(FINAL_STATUS_UNKNOWN);
  57                 }
  58                 return r;
  59         }
  60 @@ -191,7 +200,7 @@
  61                 if(r == 0 && strcasecmp(c, "CLASS0") != 0 &&
  62                         strcmp(c, "") != 0) {
  63                         fprintf(stderr, "error unknown class %s\n", c);
  64 -                       exit(1);
  65 +                       exit(FINAL_STATUS_UNKNOWN);
  66                 }
  67                 return r;
  68         }
  69 @@ -207,6 +216,19 @@
  70         return "(insecure)";
  71  }
  72
  73 +/** update the final status for the exit code */
  74 +void
  75 +update_final_status(struct ub_result* result)
  76 +{
  77 +       if (final_status == FINAL_STATUS_UNKNOWN || final_status == FINAL_STATUS_OK) {
  78 +               if (result->secure) final_status = FINAL_STATUS_OK;
  79 +               else if (result->bogus) final_status = FINAL_STATUS_CRITICAL;
  80 +               else final_status = FINAL_STATUS_WARNING;
  81 +       }
  82 +       else if (final_status == FINAL_STATUS_WARNING && result->bogus)
  83 +               final_status = FINAL_STATUS_CRITICAL;
  84 +}
  85 +
  86  /** nice string for type */
  87  static void
  88  pretty_type(char* s, size_t len, int t)
  89 @@ -353,7 +375,7 @@
  90                                 } else {
  91                                         fprintf(stderr, "could not parse "
  92                                                 "reply packet to ANY query\n");
  93 -                                       exit(1);
  94 +                                       exit(FINAL_STATUS_UNKNOWN);
  95                                 }
  96                                 ldns_pkt_free(p);
  97
  98 @@ -388,9 +410,10 @@
  99         ret = ub_resolve(ctx, q, t, c, &result);
 100         if(ret != 0) {
 101                 fprintf(stderr, "resolve error: %s\n", ub_strerror(ret));
 102 -               exit(1);
 103 +               exit(FINAL_STATUS_UNKNOWN);
 104         }
 105         pretty_output(q, t, c, result, docname);
 106 +       update_final_status(result);
 107         ret = result->nxdomain;
 108         ub_resolve_free(result);
 109         return ret;
 110 @@ -427,7 +450,7 @@
 111  {
 112         if(r != 0) {
 113                 fprintf(stderr, "error: %s\n", ub_strerror(r));
 114 -               exit(1);
 115 +               exit(FINAL_STATUS_UNKNOWN);
 116         }
 117  }
 118
 119 @@ -448,7 +471,7 @@
 120         ctx = ub_ctx_create();
 121         if(!ctx) {
 122                 fprintf(stderr, "error: out of memory\n");
 123 -               exit(1);
 124 +               exit(FINAL_STATUS_UNKNOWN);
 125         }
 126
 127         /* parse the options */
 128 @@ -509,5 +532,5 @@
 129                 usage();
 130
 131         lookup(ctx, argv[0], qtype, qclass);
 132 -       return 0;
 133 +       return final_status;
 134  }