curl/curl-7.18.2-nss-thread-safety.patch

69 lines
1.7 KiB
Diff

diff -u --recursive curl-7.18.2.orig/lib/nss.c curl-7.18.2/lib/nss.c
--- curl-7.18.2.orig/lib/nss.c 2008-05-26 11:02:49.000000000 -0400
+++ curl-7.18.2/lib/nss.c 2008-09-03 13:33:32.000000000 -0400
@@ -73,6 +73,8 @@
PRFileDesc *PR_ImportTCPSocket(PRInt32 osfd);
+PRLock * nss_initlock = NULL;
+
int initialized = 0;
#define HANDSHAKE_TIMEOUT 30
@@ -718,9 +720,12 @@
* @retval 1 SSL initialized successfully
*/
int Curl_nss_init(void)
-{
- if(!initialized)
+{
+ /* curl_global_init() is not thread-safe so this test is ok */
+ if (nss_initlock == NULL) {
PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 256);
+ nss_initlock = PR_NewLock();
+ }
/* We will actually initialize NSS later */
@@ -730,7 +735,17 @@
/* Global cleanup */
void Curl_nss_cleanup(void)
{
- NSS_Shutdown();
+ /* This function isn't required to be threadsafe and this is only done
+ * as a safety feature.
+ */
+ PR_Lock(nss_initlock);
+ if (initialized)
+ NSS_Shutdown();
+ PR_Unlock(nss_initlock);
+
+ PR_DestroyLock(nss_initlock);
+ nss_initlock = NULL;
+
initialized = 0;
}
@@ -805,7 +820,8 @@
curlerr = CURLE_SSL_CONNECT_ERROR;
/* FIXME. NSS doesn't support multiple databases open at the same time. */
- if(!initialized) {
+ PR_Lock(nss_initlock);
+ if(!initialized && !NSS_IsInitialized()) {
initialized = 1;
certDir = getenv("SSL_DIR"); /* Look in $SSL_DIR */
@@ -829,8 +845,11 @@
if(rv != SECSuccess) {
infof(conn->data, "Unable to initialize NSS database\n");
curlerr = CURLE_SSL_CACERT_BADFILE;
+ PR_Unlock(nss_initlock);
+ initialized = 0;
goto error;
}
+ PR_Unlock(nss_initlock);
NSS_SetDomesticPolicy();