[sr-dev] git:master:6461b799: pv: convert negative index to positive position for $branch(...)

Module: kamailio Branch: master Commit: 6461b799ce64315b72b8e2f4f7e4617603330833 URL: https://github.com/kamailio/kamailio/commit/6461b799ce64315b72b8e2f4f7e4617… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2015-06-05T11:41:21+02:00 pv: convert negative index to positive position for $branch(...) - better access to branch structures --- Modified: modules/pv/pv_branch.c --- Diff: https://github.com/kamailio/kamailio/commit/6461b799ce64315b72b8e2f4f7e4617… Patch: https://github.com/kamailio/kamailio/commit/6461b799ce64315b72b8e2f4f7e4617… --- diff --git a/modules/pv/pv_branch.c b/modules/pv/pv_branch.c index e35330a..34626b3 100644 --- a/modules/pv/pv_branch.c +++ b/modules/pv/pv_branch.c @@ -133,6 +133,16 @@ int pv_set_branchx_helper(sip_msg_t *msg, pv_param_t *param, LM_ERR("invalid index\n"); return -1; } + if(idx<0) + { + if((int)nr_branches + idx >= 0) { + idx += nr_branches; + } else { + LM_ERR("index too low: %d (%u)\n", idx, nr_branches); + return -1; + } + } + LM_DBG("managing branch index %d (%u)\n", idx, nr_branches); br = get_sip_branch(idx); }