oconf.c

   1 #include "module.h"
   2
   3 /*
   4  * the code in misc.c expects this to be a global variable. Yes, that's
   5  * weird, and no I'm not gonna do anything about it right now. it is a
   6  * global variable in Nagios and the module is the designated user of
   7  * that functionality, so it's not, strictly speaking, necessary.
   8  */
   9 char *config_file = NULL;
  10
  11 /*
  12  * converts an arbitrarily long string of data into its
  13  * hexadecimal representation
  14  */
  15 char *tohex(const unsigned char *data, int len)
  16 {
  17         /* number of bufs must be a power of 2 */
  18         static char bufs[4][41], hex[] = "0123456789abcdef";
  19         static int bufno;
  20         char *buf;
  21         int i;
  22
  23         buf = bufs[bufno & (ARRAY_SIZE(bufs) - 1)];
  24         for (i = 0; i < 20 && i < len; i++) {
  25                 unsigned int val = *data++;
  26                 *buf++ = hex[val >> 4];
  27                 *buf++ = hex[val & 0xf];
  28         }
  29         *buf = '\0';
  30
  31         return bufs[bufno++ & (ARRAY_SIZE(bufs) - 1)];
  32 }
  33
  34 #define CMD_HASH 1
  35 #define CMD_LAST_CHANGE 2
  36 #define CMD_FILES 3
  37 int main(int argc, char **argv)
  38 {
  39         unsigned char hash[20];
  40         int i, cmd = 0;
  41         char *base, *cmd_string = NULL;
  42
  43         base = strrchr(argv[0], '/');
  44         if (!base)
  45                 base = argv[0];
  46         else
  47                 base++;
  48
  49         if (!prefixcmp(base, "oconf.")) {
  50                 cmd_string = base + strlen("oconf.");
  51                 if (!strcmp(cmd_string, "changed")) {
  52                         cmd = CMD_LAST_CHANGE;
  53                 } else if (!strcmp(cmd_string, "hash")) {
  54                         cmd = CMD_HASH;
  55                 }
  56         }
  57
  58         for (i = 1; i < argc; i++) {
  59                 char *arg = argv[i];
  60                 if (!prefixcmp(arg, "--nagios-cfg=")) {
  61                         config_file = &arg[strlen("--nagios-cfg=")];
  62                         continue;
  63                 }
  64                 while (*arg == '-')
  65                         arg++;
  66
  67                 if (!prefixcmp(arg, "last") || !prefixcmp(arg, "change")) {
  68                         cmd = CMD_LAST_CHANGE;
  69                         continue;
  70                 }
  71                 if (!strcmp(arg, "sha1") || !strcmp(arg, "hash")) {
  72                         cmd = CMD_HASH;
  73                         continue;
  74                 }
  75                 if (!prefixcmp(arg, "list") || !strcmp(arg, "files")) {
  76                         cmd = CMD_FILES;
  77                         continue;
  78                 }
  79         }
  80         if (!config_file)
  81                 config_file = "/opt/monitor/etc/nagios.cfg";
  82
  83         switch (cmd) {
  84         case CMD_HASH:
  85                 get_config_hash(hash);
  86                 printf("%s\n", tohex(hash, 20));
  87                 break;
  88         case CMD_LAST_CHANGE:
  89                 printf("%lu\n", get_last_cfg_change());
  90                 break;
  91         case CMD_FILES:
  92                 {
  93                         struct file_list **sorted_flist;
  94                         unsigned int num_files, i;
  95
  96                         sorted_flist = get_sorted_oconf_files(&num_files);
  97                         if(!sorted_flist)
  98                                 break;
  99
 100                         for (i = 0; i < num_files; i++) {
 101                                 printf("%s\n", sorted_flist[i]->name);
 102                                 sorted_flist[i]->next = NULL;
 103                                 file_list_free(sorted_flist[i]);
 104                         }
 105                         free(sorted_flist);
 106                 }
 107                 break;
 108         }
 109         return 0;
 110 }