[sr-dev] git:sr_3.0: core: switch(string) memleak fix

Module: sip-router Branch: sr_3.0 Commit: ed34b906df35e4502145fefd118c11df772f0f03 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=ed34b90… Author: Andrei Pelinescu-Onciul <andrei(a)iptel.org> Committer: Andrei Pelinescu-Onciul <andrei(a)iptel.org> Date: Sun Sep 26 21:28:47 2010 +0200 core: switch(string) memleak fix When a switch(string) is used and one of the case blocks exits the script (by drop, exit or a module function that causes the script to end), the dynamic string rvals were not cleaned up. This happened because run_actions() uses longjmp() to quickly end the script (skipping this way over the cleanups done after the run_actions() call). Reported-by: Daniel-Constantin Mierla <miconda(a)gmail.com> Reported-by: C�sar Pinto Mag�n Cesar.Pinto a-e es (cherry picked from commit 6ab93de37f2f1991d3406f52ac9502a7c795ef55) --- action.c | 22 ++++++++++++++++++++++ 1 files changed, 22 insertions(+), 0 deletions(-) diff --git a/action.c b/action.c index 4edf023..315cffb 100644 --- a/action.c +++ b/action.c @@ -1089,17 +1089,39 @@ sw_jt_def: regexec(mct->match[i].l.regex, s.s, 0, 0, 0) == 0) ){ if (likely(mct->jump[i])){ + /* make sure we cleanup first, in case run_actions() + exits the script directly via longjmp() */ + if (rv1){ + rval_destroy(rv1); + rval_destroy(rv); + rval_cache_clean(&c1); + }else if (rv){ + rval_destroy(rv); + rval_cache_clean(&c1); + } ret=run_actions(h, mct->jump[i], msg); h->run_flags &= ~BREAK_R_F; /* catch breaks, but let returns passthrough */ + break; } goto match_cleanup; } match_cond_def: if (mct->def){ + /* make sure we cleanup first, in case run_actions() + exits the script directly via longjmp() */ + if (rv1){ + rval_destroy(rv1); + rval_destroy(rv); + rval_cache_clean(&c1); + }else if (rv){ + rval_destroy(rv); + rval_cache_clean(&c1); + } ret=run_actions(h, mct->def, msg); h->run_flags &= ~BREAK_R_F; /* catch breaks, but let returns passthrough */ + break; } match_cleanup: if (rv1){