Module: kamailio Branch: master Commit: 6118d832d3ba0efb96820915520af3c8a9bf29de URL: https://github.com/kamailio/kamailio/commit/6118d832d3ba0efb96820915520af3c… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: 2017-07-04T09:00:45+02:00 core: msg translator - reworked error handling to free allocated buffers --- Modified: src/core/msg_translator.c --- Diff: https://github.com/kamailio/kamailio/commit/6118d832d3ba0efb96820915520af3c… Patch: https://github.com/kamailio/kamailio/commit/6118d832d3ba0efb96820915520af3c… --- diff --git a/src/core/msg_translator.c b/src/core/msg_translator.c index 618a6ba2e7..1a20d0d005 100644 --- a/src/core/msg_translator.c +++ b/src/core/msg_translator.c @@ -2033,7 +2033,10 @@ char * build_req_buf_from_sip_req( struct sip_msg* msg, } if (via_insert_param==0) goto error02; /* free received_buf */ if (insert_new_lump_after(via_insert_param, received_buf, received_len, - HDR_VIA_T) ==0 ) goto error02; /* free received_buf */ + HDR_VIA_T) ==0 ) { + goto error02; /* free received_buf */ + } + received_buf = NULL; } /* if rport needs to be updated, delete it if present and add it's value */ if (rport_len){ @@ -2048,9 +2051,10 @@ char * build_req_buf_from_sip_req( struct sip_msg* msg, } if (via_insert_param==0) goto error03; /* free rport_buf */ if (insert_new_lump_after(via_insert_param, rport_buf, rport_len, - HDR_VIA_T) ==0 ) + HDR_VIA_T) ==0 ) { goto error03; /* free rport_buf */ - + } + rport_buf = NULL; } after_update_via1: @@ -2073,25 +2077,26 @@ char * build_req_buf_from_sip_req( struct sip_msg* msg, (if present & parsed), after the local via or after in front of the first via if we don't add a local via*/ if (msg->route){ - path_anchor=anchor_lump(msg, msg->route->name.s-buf, 0, + path_anchor=anchor_lump(msg, msg->route->name.s-buf, 0, HDR_ROUTE_T); }else if (likely(via_anchor)){ path_anchor=via_anchor; }else if (likely(msg->via1)){ - path_anchor=anchor_lump(msg, msg->via1->hdr.s-buf, 0, + path_anchor=anchor_lump(msg, msg->via1->hdr.s-buf, 0, HDR_ROUTE_T); }else{ /* if no via1 (theoretically possible for non-sip messages, e.g. http xmlrpc) */ - path_anchor=anchor_lump(msg, msg->headers->name.s-buf, 0, + path_anchor=anchor_lump(msg, msg->headers->name.s-buf, 0, HDR_ROUTE_T); } if (unlikely(path_anchor==0)) goto error05; if (unlikely((path_lump=insert_new_lump_after(path_anchor, path_buf.s, - path_buf.len, - HDR_ROUTE_T))==0)) + path_buf.len, HDR_ROUTE_T))==0)) { goto error05; + } + path_buf.s = NULL; } /* compute new msg len and fix overlapping zones*/ new_len=len+body_delta+lumps_len(msg, msg->add_rm, send_info)+via_len; @@ -2100,7 +2105,7 @@ char * build_req_buf_from_sip_req( struct sip_msg* msg, #endif udp_mtu=cfg_get(core, core_cfg, udp_mtu); di.proto=PROTO_NONE; - if (unlikely((send_info->proto==PROTO_UDP) && udp_mtu && + if (unlikely((send_info->proto==PROTO_UDP) && udp_mtu && (flags & FL_MTU_FB_MASK) && (new_len>udp_mtu) && (!(mode&BUILD_NO_LOCAL_VIA)))){ @@ -2127,7 +2132,7 @@ char * build_req_buf_from_sip_req( struct sip_msg* msg, di.proto=PROTO_SCTP; } #endif /* USE_SCTP */ - + if (di.proto!=PROTO_NONE){ new_len-=via_len; if(likely(line_buf)) pkg_free(line_buf); @@ -2144,8 +2149,10 @@ char * build_req_buf_from_sip_req( struct sip_msg* msg, /* add first via, as an anchor for second via*/ if(likely(line_buf)) { if ((via_lump=insert_new_lump_before(via_anchor, line_buf, via_len, - HDR_VIA_T))==0) + HDR_VIA_T))==0) { goto error04; + } + line_buf = 0; } if (msg->new_uri.s){ uri_len=msg->new_uri.len; @@ -2182,7 +2189,7 @@ char * build_req_buf_from_sip_req( struct sip_msg* msg, new_buf[new_len]=0; /* update the send_info if udp_mtu affected */ - if (di.proto!=PROTO_NONE) { + if (di.proto!=PROTO_NONE) { send_info->proto=di.proto; send_info->send_sock=di.send_sock; } @@ -2199,13 +2206,14 @@ char * build_req_buf_from_sip_req( struct sip_msg* msg, error01: error02: - if (received_buf) pkg_free(received_buf); error03: - if (rport_buf) pkg_free(rport_buf); error04: - if (line_buf) pkg_free(line_buf); error05: + if (received_buf) pkg_free(received_buf); + if (rport_buf) pkg_free(rport_buf); if (path_buf.s) pkg_free(path_buf.s); + if (line_buf) pkg_free(line_buf); + error00: *returned_len=0; return 0;