[sr-dev] git:master:83c37041: core: udp - print up to first 100 chars from received packet

Module: kamailio Branch: master Commit: 83c370414cb288b113ad4f075a2261e7d701d6d3 URL: https://github.com/kamailio/kamailio/commit/83c370414cb288b113ad4f075a2261e… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2017-11-17T11:02:04+01:00 core: udp - print up to first 100 chars from received packet --- Modified: src/core/udp_server.c --- Diff: https://github.com/kamailio/kamailio/commit/83c370414cb288b113ad4f075a2261e… Patch: https://github.com/kamailio/kamailio/commit/83c370414cb288b113ad4f075a2261e… --- diff --git a/src/core/udp_server.c b/src/core/udp_server.c index 5262162362..0392136385 100644 --- a/src/core/udp_server.c +++ b/src/core/udp_server.c @@ -425,6 +425,10 @@ int udp_rcv_loop() unsigned int fromlen; struct receive_info ri; sr_event_param_t evp = {0}; + char printbuf[512]; + int i; + int j; + int l; from=(union sockaddr_union*) pkg_malloc(sizeof(union sockaddr_union)); @@ -466,6 +470,23 @@ int udp_rcv_loop() /* we must 0-term the messages, receive_msg expects it */ buf[len]=0; /* no need to save the previous char */ + if(is_printable(L_DBG) && len>10) { + j = 0; + for(i=0; i<len && i<100; i++) { + if(isprint(buf[i])) { + printbuf[j++] = buf[i]; + } else { + l = snprintf(printbuf+j, 6, " %02X ", buf[i]); + if(l<0 || l>=6) { + LM_ERR("print buffer building failed\n"); + goto error; + } + j += l; + } + } + LM_DBG("received on udp socket: (%d/%d) [[%.*s]]\n", + j, len, len, printbuf); + } ri.src_su=*from; su2ip_addr(&ri.src_ip, from); ri.src_port=su_getport(from);