[OpenSIPS-Devel] [OpenSIPS/opensips] 692a68: b2b_logic: fix crash if no B2B routes are set

[Vlad Pătrașcu]

  Branch: refs/heads/3.4
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 692a680ef1237c0e05866af97b5e5b552bdd0564
      https://github.com/OpenSIPS/opensips/commit/692a680ef1237c0e05866af97b5e5b552bdd0564
  Author: Vlad Patrascu <vladp at opensips.org>
  Date:   2023-05-18 (Thu, 18 May 2023)

  Changed paths:
    M modules/b2b_logic/records.c

  Log Message:
  -----------
  b2b_logic: fix crash if no B2B routes are set

This fixes a crash when the 'script_req_route'/'script_reply_route'
module parameters are not set and b2b_init_request() is called with no
route parameters.

(cherry picked from commit 94acb11f567117ef3baa095c01c8ef1bab00aecb)