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diff --git a/plugins/check_tcp.c b/plugins/check_tcp.c
index e8d7ec6..517b6b5 100644
--- a/plugins/check_tcp.c
+++ b/plugins/check_tcp.c
@@ -3,7 +3,7 @@
3* Nagios check_tcp plugin 3* Nagios check_tcp plugin
4* 4*
5* License: GPL 5* License: GPL
6* Copyright (c) 1999-2008 Nagios Plugins Development Team 6* Copyright (c) 1999-2013 Nagios Plugins Development Team
7* 7*
8* Description: 8* Description:
9* 9*
@@ -277,25 +277,30 @@ main (int argc, char **argv)
277 status = realloc(status, len + i + 1); 277 status = realloc(status, len + i + 1);
278 memcpy(&status[len], buffer, i); 278 memcpy(&status[len], buffer, i);
279 len += i; 279 len += i;
280 status[len] = '\0';
280 281
281 /* stop reading if user-forced */ 282 /* stop reading if user-forced */
282 if (maxbytes && len >= maxbytes) 283 if (maxbytes && len >= maxbytes)
283 break; 284 break;
285
286 if ((match = np_expect_match(status,
287 server_expect,
288 server_expect_count,
289 match_flags)) != NP_MATCH_RETRY)
290 break;
284 } 291 }
285 292
286 /* no data when expected, so return critical */ 293 /* no data when expected, so return critical */
287 if (len == 0) 294 if (len == 0)
288 die (STATE_CRITICAL, _("No data received from host\n")); 295 die (STATE_CRITICAL, _("No data received from host\n"));
289 296
290 /* force null-termination and strip whitespace from end of output */
291 status[len--] = '\0';
292 /* print raw output if we're debugging */ 297 /* print raw output if we're debugging */
293 if(flags & FLAG_VERBOSE) 298 if(flags & FLAG_VERBOSE)
294 printf("received %d bytes from host\n#-raw-recv-------#\n%s\n#-raw-recv-------#\n", 299 printf("received %d bytes from host\n#-raw-recv-------#\n%s\n#-raw-recv-------#\n",
295 (int)len + 1, status); 300 (int)len + 1, status);
296 while(isspace(status[len])) status[len--] = '\0'; 301 /* strip whitespace from end of output */
297 302 while(--len > 0 && isspace(status[len]))
298 match = np_expect_match(status, server_expect, server_expect_count, match_flags); 303 status[len] = '\0';
299 } 304 }
300 305
301 if (server_quit != NULL) { 306 if (server_quit != NULL) {
@@ -315,7 +320,7 @@ main (int argc, char **argv)
315 result = STATE_WARNING; 320 result = STATE_WARNING;
316 321
317 /* did we get the response we hoped? */ 322 /* did we get the response we hoped? */
318 if(match == FALSE && result != STATE_CRITICAL) 323 if(match != NP_MATCH_SUCCESS && result != STATE_CRITICAL)
319 result = expect_mismatch_state; 324 result = expect_mismatch_state;
320 325
321 /* reset the alarm */ 326 /* reset the alarm */
@@ -326,10 +331,10 @@ main (int argc, char **argv)
326 * the response we were looking for. if-else */ 331 * the response we were looking for. if-else */
327 printf("%s %s - ", SERVICE, state_text(result)); 332 printf("%s %s - ", SERVICE, state_text(result));
328 333
329 if(match == FALSE && len && !(flags & FLAG_HIDE_OUTPUT)) 334 if(match != NP_MATCH_SUCCESS && len && !(flags & FLAG_HIDE_OUTPUT))
330 printf("Unexpected response from host/socket: %s", status); 335 printf("Unexpected response from host/socket: %s", status);
331 else { 336 else {
332 if(match == FALSE) 337 if(match != NP_MATCH_SUCCESS)
333 printf("Unexpected response from host/socket on "); 338 printf("Unexpected response from host/socket on ");
334 else 339 else
335 printf("%.3f second response time on ", elapsed_time); 340 printf("%.3f second response time on ", elapsed_time);
@@ -339,13 +344,13 @@ main (int argc, char **argv)
339 printf("socket %s", server_address); 344 printf("socket %s", server_address);
340 } 345 }
341 346
342 if (match != FALSE && !(flags & FLAG_HIDE_OUTPUT) && len) 347 if (match == NP_MATCH_SUCCESS && !(flags & FLAG_HIDE_OUTPUT) && len)
343 printf (" [%s]", status); 348 printf (" [%s]", status);
344 349
345 /* perf-data doesn't apply when server doesn't talk properly, 350 /* perf-data doesn't apply when server doesn't talk properly,
346 * so print all zeroes on warn and crit. Use fperfdata since 351 * so print all zeroes on warn and crit. Use fperfdata since
347 * localisation settings can make different outputs */ 352 * localisation settings can make different outputs */
348 if(match == FALSE) 353 if(match != NP_MATCH_SUCCESS)
349 printf ("|%s", 354 printf ("|%s",
350 fperfdata ("time", elapsed_time, "s", 355 fperfdata ("time", elapsed_time, "s",
351 (flags & FLAG_TIME_WARN ? TRUE : FALSE), 0, 356 (flags & FLAG_TIME_WARN ? TRUE : FALSE), 0,