diff options
| author | Rich Salz <rsalz@openssl.org> | 2017-06-22 14:00:06 -0400 |
|---|---|---|
| committer | Rich Salz <rsalz@openssl.org> | 2017-06-29 16:19:41 -0400 |
| commit | 2915fe19a6676374c335d8c50eaaa4c940cf47d6 (patch) | |
| tree | 4d959df974cc5ea075a230101ac2b95c7da23320 /crypto/init.c | |
| parent | 5ee407460b3b68aa4695f17cf8c43e0d07cb18a8 (diff) | |
Add fork handlers, based on pthread_atfork
Only for Unix platforms
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3754)
Diffstat (limited to 'crypto/init.c')
| -rw-r--r-- | crypto/init.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/crypto/init.c b/crypto/init.c index e159a3dd0c..bc961718da 100644 --- a/crypto/init.c +++ b/crypto/init.c @@ -552,6 +552,10 @@ int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings) && !RUN_ONCE(&add_all_digests, ossl_init_add_all_digests)) return 0; + if ((opts & OPENSSL_INIT_NO_ATFORK) == 0 + && !openssl_init_fork_handlers()) + return 0; + if ((opts & OPENSSL_INIT_NO_LOAD_CONFIG) && !RUN_ONCE(&config, ossl_init_no_config)) return 0; @@ -677,3 +681,28 @@ int OPENSSL_atexit(void (*handler)(void)) return 1; } + +#ifdef OPENSSL_SYS_UNIX +/* + * The following three functions are for OpenSSL developers. This is + * where we set/reset state across fork (called via pthread_atfork when + * it exists, or manually by the application when it doesn't). + * + * WARNING! If you put code in either OPENSSL_fork_parent or + * OPENSSL_fork_child, you MUST MAKE SURE that they are async-signal- + * safe. See this link, for example: + * http://man7.org/linux/man-pages/man7/signal-safety.7.html + */ + +void OPENSSL_fork_prepare(void) +{ +} + +void OPENSSL_fork_parent(void) +{ +} + +void OPENSSL_fork_child(void) +{ +} +#endif |