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authorDaniel Stenberg <daniel@haxx.se>2021-01-05 00:03:57 +0100
committerDaniel Stenberg <daniel@haxx.se>2021-01-06 00:01:10 +0100
commitd7c0e82149d40994d8234239cf4ec8c65f5196f0 (patch)
treec62c2db23a812fc96542b166929db2704d6b48ae
parent76cb8a4201279d090c32e6ed717b48f64f2f1aa0 (diff)
downloadcurl-bagder/global-cleanup.tar.gz
global_init: debug builds allocates a byte in initbagder/global-cleanup
... to make build tools/valgrind warn if no curl_global_cleanup is called. This is conditionally only done for debug builds with the env variable CURL_GLOBAL_INIT set. Closes #6410
-rw-r--r--lib/easy.c15
-rwxr-xr-xtests/runtests.pl1
2 files changed, 15 insertions, 1 deletions
diff --git a/lib/easy.c b/lib/easy.c
index 311946bdf..04e59144b 100644
--- a/lib/easy.c
+++ b/lib/easy.c
@@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2021, 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
@@ -124,6 +124,10 @@ curl_wcsdup_callback Curl_cwcsdup = (curl_wcsdup_callback)_wcsdup;
# pragma warning(default:4232) /* MSVC extension, dllimport identity */
#endif
+#ifdef DEBUGBUILD
+static char *leakpointer;
+#endif
+
/**
* curl_global_init() globally initializes curl given a bitwise set of the
* different features of what to initialize.
@@ -190,6 +194,12 @@ static CURLcode global_init(long flags, bool memoryfuncs)
init_flags = flags;
+#ifdef DEBUGBUILD
+ if(getenv("CURL_GLOBAL_INIT"))
+ /* alloc data that will leak if *cleanup() is not called! */
+ leakpointer = malloc(1);
+#endif
+
return CURLE_OK;
fail:
@@ -265,6 +275,9 @@ void curl_global_cleanup(void)
#ifdef USE_WOLFSSH
(void)wolfSSH_Cleanup();
#endif
+#ifdef DEBUGBUILD
+ free(leakpointer);
+#endif
init_flags = 0;
}
diff --git a/tests/runtests.pl b/tests/runtests.pl
index 6c5edc84d..0e0e26c3c 100755
--- a/tests/runtests.pl
+++ b/tests/runtests.pl
@@ -381,6 +381,7 @@ if (!$USER) {
$ENV{'CURL_MEMDEBUG'} = $memdump;
$ENV{'CURL_ENTROPY'}="12345678";
$ENV{'CURL_FORCETIME'}=1; # for debug NTLM magic
+$ENV{'CURL_GLOBAL_INIT'}=1; # debug curl_global_init/cleanup use
$ENV{'HOME'}=$pwd;
$ENV{'COLUMNS'}=79; # screen width!