New function to for escaped strings from command line for send/quit.

Adapted from Sebastian Wiesinger's patch (1292404)


git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1365 f882894a-f735-0410-b71e-b25c423dba1c

4 files changed, 85 insertions, 33 deletions

diff --git a/plugins/check_tcp.c b/plugins/check_tcp.c
index d8fc26e..5fe024b 100644
--- a/plugins/check_tcp.c
+++ b/plugins/check_tcp.c
@@ -54,8 +54,6 @@ static int server_port = 0;
 static char *server_address = NULL;
 static char *server_send = NULL;
 static char *server_quit = NULL;
-char *lineend = "";
-char *lineendquit = "\r\n";
 static char **server_expect;
 static size_t server_expect_count = 0;
 static size_t maxbytes = 0;
@@ -246,6 +244,12 @@ main (int argc, char **argv)
         }
 
         if(flags & FLAG_VERBOSE) {
+                if (server_send) {
+                        printf("Send string: %s\n", server_send);
+                }
+                if (server_quit) {
+                        printf("Quit string: %s\n", server_quit);
+                }
                 printf("server_expect_count: %d\n", (int)server_expect_count);
                 for(i = 0; i < server_expect_count; i++)
                         printf("\t%d: %s\n", i, server_expect[i]);
@@ -364,6 +368,7 @@ static int
 process_arguments (int argc, char **argv)
 {
         int c;
+        int escape = 0;
 
         int option = 0;
         static struct option longopts[] = {
@@ -375,7 +380,7 @@ process_arguments (int argc, char **argv)
                 {"timeout", required_argument, 0, 't'},
                 {"protocol", required_argument, 0, 'P'},
                 {"port", required_argument, 0, 'p'},
-                {"lineend", required_argument, 0, 'l'},
+                {"escape", required_argument, 0, 'E'},
                 {"send", required_argument, 0, 's'},
                 {"expect", required_argument, 0, 'e'},
                 {"maxbytes", required_argument, 0, 'm'},
@@ -417,7 +422,7 @@ process_arguments (int argc, char **argv)
         }
 
         while (1) {
-                c = getopt_long (argc, argv, "+hVv46H:l:s:e:q:m:c:w:t:p:C:W:d:Sr:jD:M:",
+                c = getopt_long (argc, argv, "+hVv46EH:s:e:q:m:c:w:t:p:C:W:d:Sr:jD:M:",
                                  longopts, &option);
 
                 if (c == -1 || c == EOF || c == 1)
@@ -485,30 +490,14 @@ process_arguments (int argc, char **argv)
                         else
                                 server_port = atoi (optarg);
                         break;
-                case 'l':
-                        switch (*optarg) {
-                                case 'n':
-                                  lineend = strdup("\n");
-                                  lineendquit = lineend;
-                                  break;
-                                case 'r':
-                                  lineend = strdup("\r");
-                                  lineendquit = lineend;
-                                  break;
-                                case 'b':
-                                  lineend = strdup("\r\n");
-                                  lineendquit = lineend;
-                                  break;
-                                case 'e':
-                                  lineend = strdup("");
-                                  lineendquit = lineend;
-                                  break;
-                                default:
-                                  usage4 (_("Unrecognized option to -l, must be r, n, b or e"));
-                        }
+                case 'E':
+                        escape = 1;
                         break;
                 case 's':
-                        asprintf(&server_send, "%s%s", optarg, lineend);
+                        if (escape)
+                                server_send = np_escaped_string(optarg);
+                        else
+                                asprintf(&server_send, "%s", optarg);
                         break;
                 case 'e': /* expect string (may be repeated) */
                         EXPECT = NULL;
@@ -525,7 +514,10 @@ process_arguments (int argc, char **argv)
                         else
                                 maxbytes = strtol (optarg, NULL, 0);
                 case 'q':
-                        asprintf(&server_quit, "%s%s", optarg, lineendquit);
+                        if (escape)
+                                server_quit = np_escaped_string(optarg);
+                        else
+                                asprintf(&server_quit, "%s\r\n", optarg);
                         break;
                 case 'r':
                         if (!strncmp(optarg,"ok",2))
@@ -604,10 +596,9 @@ print_help (void)
         printf (_(UT_IPv46));
 
         printf (_("\
- -l, --lineend=b|e|n|r\n\
-    Ending on -s and -q strings. b - both: <cr><lf> style, e - empty no\n\
-    end, n - newline: newline end, r - return: carriage return end\n\
-    Default is \"-l e -s <send> -l b -q <quit>\".\n\
+ -E, --escape\n\
+    Can use \\n, \\r, \\t or \\ in send or quit string.\n\
+    Default: nothing added to send, \\r\\n added to end of quit\n\
  -s, --send=STRING\n\
     String to send to the server\n\
  -e, --expect=STRING\n\
@@ -653,6 +644,6 @@ Usage: %s -H host -p port [-w <warning time>] [-c <critical time>]\n\
                   [-s <send string>] [-e <expect string>] [-q <quit string>]\n\
                   [-m <maximum bytes>] [-d <delay>] [-t <timeout seconds>]\n\
                   [-r <refuse state>] [-M <mismatch state>] [-v] [-4|-6] [-j]\n\
-                  [-D <days to cert expiry>] [-S <use SSL>] [-l <n|r|b|e>]\n", progname);
+                  [-D <days to cert expiry>] [-S <use SSL>] [-E]\n", progname);
 }
 
diff --git a/plugins/tests/test_utils.c b/plugins/tests/test_utils.c
index 27e28c7..5aa0028 100644
--- a/plugins/tests/test_utils.c
+++ b/plugins/tests/test_utils.c
@@ -34,7 +34,7 @@ main (int argc, char **argv)
         thresholds *thresholds = NULL;
         int     rc;
 
-        plan_tests(66);
+        plan_tests(73);
 
         range = parse_range_string("6");
         ok( range != NULL, "'6' is valid range");
@@ -136,6 +136,35 @@ main (int argc, char **argv)
         ok( get_status(30.0001, thresholds) == STATE_WARNING, "30.0001 - warning");
         ok( get_status(69, thresholds) == STATE_CRITICAL, "69 - critical");
 
+        char *test;
+        test = np_escaped_string("bob\\n");
+        ok( strcmp(test, "bob\n") == 0, "bob\\n ok");
+        free(test);
+
+        test = np_escaped_string("rhuba\\rb");
+        ok( strcmp(test, "rhuba\rb") == 0, "rhuba\\rb okay");
+        free(test);
+
+        test = np_escaped_string("ba\\nge\\r");
+        ok( strcmp(test, "ba\nge\r") == 0, "ba\\nge\\r okay");
+        free(test);
+
+        test = np_escaped_string("\\rabbi\\t");
+        ok( strcmp(test, "\rabbi\t") == 0, "\\rabbi\\t okay");
+        free(test);
+
+        test = np_escaped_string("and\\\\or");
+        ok( strcmp(test, "and\\or") == 0, "and\\\\or okay");
+        free(test);
+
+        test = np_escaped_string("bo\\gus");
+        ok( strcmp(test, "bogus") == 0, "bo\\gus okay");
+        free(test);
+
+        test = np_escaped_string("everything");
+        ok( strcmp(test, "everything") == 0, "everything okay");
+        free(test);
+
         return exit_status();
 }
 
diff --git a/plugins/utils.c b/plugins/utils.c
index 685a638..a5245c6 100644
--- a/plugins/utils.c
+++ b/plugins/utils.c
@@ -727,3 +727,33 @@ char *fperfdata (const char *label,
 
         return data;
 }
+
+char *np_escaped_string (const char *string) {
+        char *data;
+        int i, j=0;
+        data = strdup(string);
+        for (i=0; data[i]; i++) {
+                if (data[i] == '\\') {
+                        switch(data[++i]) {
+                                case 'n':
+                                        data[j++] = '\n';
+                                        break;
+                                case 'r':
+                                        data[j++] = '\r';
+                                        break;
+                                case 't':
+                                        data[j++] = '\t';
+                                        break;
+                                case '\\':
+                                        data[j++] = '\\';
+                                        break;
+                                default:
+                                        data[j++] = data[i];
+                        }
+                } else {
+                        data[j++] = data[i];
+                }
+        }
+        data[j] = '\0';
+        return data;
+}
diff --git a/plugins/utils.h b/plugins/utils.h
index 2345ed5..4bbe33d 100644
--- a/plugins/utils.h
+++ b/plugins/utils.h
@@ -132,6 +132,8 @@ char *fperfdata (const char *,
  int,
  double);
 
+char *np_escaped_string (const char *);
+
 /* The idea here is that, although not every plugin will use all of these, 
    most will or should.  Therefore, for consistency, these very common 
    options should have only these meanings throughout the overall suite */