[OpenSIPS-Devel] [OpenSIPS/opensips] c6ac01: tls_mgm: fix a cleanup crash when failing to creat...

[Vlad Pătrașcu]

  Branch: refs/heads/3.0
  Home:   https://github.com/OpenSIPS/opensips
  Commit: c6ac01258b61608b06ca400815e3b89302724107
      https://github.com/OpenSIPS/opensips/commit/c6ac01258b61608b06ca400815e3b89302724107
  Author: Vlad Patrascu <vladp at opensips.org>
  Date:   2020-06-12 (Fri, 12 Jun 2020)

  Changed paths:
    M modules/tls_mgm/tls_mgm.c

  Log Message:
  -----------
  tls_mgm: fix a cleanup crash when failing to create a SSL_CTX


  Commit: a3e87277f275d2b26a3f1472e78a07baea9de85c
      https://github.com/OpenSIPS/opensips/commit/a3e87277f275d2b26a3f1472e78a07baea9de85c
  Author: Vlad Patrascu <vladp at opensips.org>
  Date:   2020-06-12 (Fri, 12 Jun 2020)

  Changed paths:
    M modules/cachedb_mongodb/Makefile
    M modules/cachedb_mongodb/cachedb_mongodb.c
    A modules/cachedb_mongodb/ssl_tweaks.c
    A ssl_init_tweaks.h

  Log Message:
  -----------
  cachedb_mongodb: fix crashes when loading module along with tls_mgm

Loading the cachedb_mongodb module causes the openssl library to be
initialized in the pre-daemon process, by the mongoc library's
constuctor, before tls_mgm gets the chance to do its own initialization
in the attendant process.
This commit overwrites the openssl functions used by the mongoc library
in order to actually skip the initialization and leave it to tls_mgm.

Related to #2091


Compare: https://github.com/OpenSIPS/opensips/compare/00335803601c...a3e87277f275