easy: Reset all statistical session info in curl_easy_reset

Bug: https://github.com/curl/curl/issues/1017
Reported-by: Jeroen Ooms

lib/easy.c

@@ -995,6 +995,9 @@ void curl_easy_reset(struct Curl_easy *data)
   /* zero out Progress data: */
   memset(&data->progress, 0, sizeof(struct Progress));
 
+  /* zero out PureInfo data: */
+  Curl_initinfo(data);
+
   data->progress.flags |= PGRS_HIDE;
   data->state.current_speed = -1; /* init to negative == impossible */
 }

lib/getinfo.c

@@ -36,8 +36,8 @@
 #include "memdebug.h"
 
 /*
- * This is supposed to be called in the beginning of a perform() session
+ * This is supposed to be called in the beginning of a perform() session and
- * and should reset all session-info variables
+ * in curl_easy_reset() and should reset all session-info variables.
  */
 CURLcode Curl_initinfo(struct Curl_easy *data)
 {
@@ -58,18 +58,27 @@ CURLcode Curl_initinfo(struct Curl_easy *data)
   info->filetime = -1; /* -1 is an illegal time and thus means unknown */
   info->timecond = FALSE;
 
+  info->header_size = 0;
+  info->request_size = 0;
+  info->proxyauthavail = 0;
+  info->httpauthavail = 0;
+  info->numconnects = 0;
+
   free(info->contenttype);
   info->contenttype = NULL;
 
-  info->header_size = 0;
+  free(info->wouldredirect);
-  info->request_size = 0;
+  info->wouldredirect = NULL;
-  info->numconnects = 0;
 
   info->conn_primary_ip[0] = '\0';
   info->conn_local_ip[0] = '\0';
   info->conn_primary_port = 0;
   info->conn_local_port = 0;
 
+#ifdef USE_SSL
+  Curl_ssl_free_certinfo(data);
+#endif
+
   return CURLE_OK;
 }
 

lib/urldata.h

@@ -1104,6 +1104,7 @@ struct connectdata {
 
 /*
  * Struct to keep statistical and informational data.
+ * All variables in this struct must be reset in Curl_initinfo().
  */
 struct PureInfo {
   int httpcode;  /* Recent HTTP, FTP, RTSP or SMTP response code */

tests/data/Makefile.inc

@@ -156,7 +156,7 @@ test1516 test1517 \
 \
 test1520 \
 \
-test1525 test1526 test1527 test1528 test1529 test1530 test1531 \
+test1525 test1526 test1527 test1528 test1529 test1530 test1531 test1532 \
 \
 test1600 test1601 test1602 test1603 test1604 test1605 \
 \

tests/data/test1532

@@ -0,0 +1,49 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP GET
+</keywords>
+</info>
+
+#
+# Server-side
+<reply>
+<data nocheck="yes">
+HTTP/1.0 200 OK swsclose
+Content-Length: 0
+
+</data>
+</reply>
+
+# Client-side
+<client>
+<server>
+http
+</server>
+# tool is what to use instead of 'curl'
+<tool>
+lib1532
+</tool>
+<name>
+Test CURLINFO_RESPONSE_CODE
+</name>
+<command>
+http://%HOSTIP:%HTTPPORT/1532
+</command>
+</client>
+
+#
+# Verify data after the test has been "shot"
+<verify>
+<protocol>
+GET /1532 HTTP/1.1
+Host: %HOSTIP:%HTTPPORT
+Accept: */*
+
+</protocol>
+<errorcode>
+0
+</errorcode>
+</verify>
+</testcase>

tests/libtest/Makefile.inc

@@ -23,7 +23,7 @@ noinst_PROGRAMS = chkhostname libauthretry libntlmconnect                \
  lib1500 lib1501 lib1502 lib1503 lib1504 lib1505 lib1506 lib1507 lib1508 \
  lib1509 lib1510 lib1511 lib1512 lib1513 lib1514 lib1515         lib1517 \
  lib1520 \
- lib1525 lib1526 lib1527 lib1528 lib1529 lib1530 lib1531 \
+ lib1525 lib1526 lib1527 lib1528 lib1529 lib1530 lib1531 lib1532 \
  lib1900 \
  lib2033
 
@@ -391,6 +391,10 @@ lib1531_SOURCES = lib1531.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
 lib1531_LDADD = $(TESTUTIL_LIBS)
 lib1531_CPPFLAGS = $(AM_CPPFLAGS) -DLIB1531
 
+lib1532_SOURCES = lib1532.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
+lib1532_LDADD = $(TESTUTIL_LIBS)
+lib1532_CPPFLAGS = $(AM_CPPFLAGS) -DLIB1532
+
 lib1900_SOURCES = lib1900.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
 lib1900_LDADD = $(TESTUTIL_LIBS)
 lib1900_CPPFLAGS = $(AM_CPPFLAGS)

tests/libtest/lib1532.c

@@ -0,0 +1,80 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include "test.h"
+
+#include "memdebug.h"
+
+/* Test CURLINFO_RESPONSE_CODE */
+
+int test(char *URL)
+{
+  CURL *curl;
+  long httpcode;
+  int res = CURLE_OK;
+
+  global_init(CURL_GLOBAL_ALL);
+
+  easy_init(curl);
+
+  easy_setopt(curl, CURLOPT_URL, URL);
+
+  res = curl_easy_perform(curl);
+  if(res) {
+    fprintf(stderr, "%s:%d curl_easy_perform() failed with code %d (%s)\n",
+            __FILE__, __LINE__, res, curl_easy_strerror(res));
+    goto test_cleanup;
+  }
+
+  res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &httpcode);
+  if(res) {
+    fprintf(stderr, "%s:%d curl_easy_getinfo() failed with code %d (%s)\n",
+            __FILE__, __LINE__, res, curl_easy_strerror(res));
+    goto test_cleanup;
+  }
+  if(httpcode != 200) {
+    fprintf(stderr, "%s:%d unexpected response code %ld\n",
+            __FILE__, __LINE__, httpcode);
+    res = CURLE_HTTP_RETURNED_ERROR;
+    goto test_cleanup;
+  }
+
+  /* Test for a regression of github bug 1017 (response code does not reset) */
+  curl_easy_reset(curl);
+
+  res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &httpcode);
+  if(res) {
+    fprintf(stderr, "%s:%d curl_easy_getinfo() failed with code %d (%s)\n",
+            __FILE__, __LINE__, res, curl_easy_strerror(res));
+    goto test_cleanup;
+  }
+  if(httpcode != 0) {
+    fprintf(stderr, "%s:%d curl_easy_reset failed to zero the response code\n"
+            "possible regression of github bug 1017\n", __FILE__, __LINE__);
+    res = CURLE_HTTP_RETURNED_ERROR;
+    goto test_cleanup;
+  }
+
+test_cleanup:
+  curl_easy_cleanup(curl);
+  curl_global_cleanup();
+  return res;
+}