FreeCalypso > hg > themwi-system-sw
view sip-in/sip_uas.c @ 211:fbfa72b114e8
sip-manual-out: prep for making PCM fill octet changeable
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 21 May 2023 15:33:00 -0800 |
parents | 0d6435808bcd |
children |
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/* * Basic UAS functions for themwi-sip-in. */ #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include <syslog.h> #include "../libsip/parse.h" #include "../libsip/uas_basic.h" #include "../libsip/out_msg.h" static void unsupported_method(req, ess, sin) struct sip_pkt_rx *req; struct uas_parse_hdrs *ess; struct sockaddr_in *sin; { struct sip_msg_out resp; int rc; start_response_out_msg(&resp, "501 Method not supported"); rc = add_resp_basic_headers(&resp, ess, req->req_method); if (rc < 0) { too_long: syslog(LOG_ERR, "sending 501 error: response length exceeded"); return; } rc = out_msg_add_header(&resp, "Allow", "INVITE,ACK,PRACK,CANCEL,BYE"); if (rc < 0) goto too_long; out_msg_finish(&resp); sip_tx_packet(&resp, sin); } void process_sip_request(msg, sin) struct sip_pkt_rx *msg; struct sockaddr_in *sin; { struct uas_parse_hdrs ess; int rc; rc = uas_get_basic_headers(msg, &ess); if (rc < 0) { syslog(LOG_ERR, "SIP %.16s request: bad or missing %s header", msg->req_method, ess.error_field); return; } /* dispatch by method */ if (!strcmp(msg->req_method, "INVITE")) handle_sip_invite(msg, &ess, sin); else if (!strcmp(msg->req_method, "ACK")) handle_sip_ack(msg, &ess, sin); else if (!strcmp(msg->req_method, "PRACK")) handle_sip_prack(msg, &ess, sin); else if (!strcmp(msg->req_method, "CANCEL")) handle_sip_cancel(msg, &ess, sin); else if (!strcmp(msg->req_method, "BYE")) handle_sip_bye(msg, &ess, sin); else unsupported_method(msg, &ess, sin); }