Handle tags linked to ROST rules.

1 files changed, 10 insertions, 5 deletions

diff --git a/src/rost.c b/src/rost.c
index efe18e5..8a7e806 100644
--- a/src/rost.c
+++ b/src/rost.c
@@ -91,11 +91,12 @@ static void show_rost_help(const char *name)
 
     printf("\n");
 
-    printf("\t-A --algorithm=name\tSelect one of the available algorithms for data: bitmap, acism (default: acsim).\n");
+    printf("\t-A --algorithm=NAME\tSelect one of the available algorithms for data: bitmap, acism (default: acsim).\n");
     printf("\t-C --check-only\t\tValidate the rule syntax without performing a scan (discard the file/dir argument).\n");
-    printf("\t-j --print-json\t\tPrint matching strings in JSON format.\n");
-    printf("\t-s --print-strings\tPrint matching strings.\n");
+    printf("\t-j --print-json\t\tPrint matching strings in JSON format instead of simple text.\n");
+    printf("\t-s --print-strings\tPrint matching strings (default text format only).\n");
     printf("\t-S --print-stats\tPrint rules' statistics.\n");
+    printf("\t-t --tag=TAG\t\tprint only matching rules tagged as TAG (default text format only).\n");
     printf("\t-V --verbosity=level\tSet the log level (0 for all messages, %u for none).\n", LMT_COUNT);
 
     printf("\n");
@@ -240,6 +241,7 @@ int main(int argc, char **argv)
         { "print-json",     no_argument,        NULL,   'j' },
         { "print-strings",  no_argument,        NULL,   's' },
         { "print-stats",    no_argument,        NULL,   'S' },
+        { "tag",            required_argument,  NULL,   't' },
         { "verbosity",      required_argument,  NULL,   'V' },
         { NULL,             0,                  NULL,   0 }
     };
@@ -260,7 +262,7 @@ int main(int argc, char **argv)
 
     while (true)
     {
-        ret = getopt_long(argc, argv, "hvA:CjsSV:", long_options, &index);
+        ret = getopt_long(argc, argv, "hvA:CjsSt:V:", long_options, &index);
         if (ret == -1) break;
 
         switch (ret)
@@ -299,6 +301,10 @@ int main(int argc, char **argv)
                 g_scan_options_set_print_stats(options, true);
                 break;
 
+            case 't':
+                g_scan_options_select_tag(options, optarg);
+                break;
+
             case 'V':
                 verbosity = strtoul(optarg, NULL, 10);
                 break;
@@ -310,7 +316,6 @@ int main(int argc, char **argv)
     if ((check_only && (optind + 0) != argc && (optind + 1) != argc)
         || (!check_only && (optind + 1) != argc && (optind + 2) != argc))
     {
-        printf("failed: check=%d optind=%d argc=%d\n", check_only, optind, argc);
         show_rost_help(argv[0]);
         goto done;
     }