Ported pjsip to WinCE

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@184 74dad513-b988-da41-8d7b-12977e46ad98

6 files changed, 759 insertions, 504 deletions

diff --git a/pjsip/src/pjsua/getopt.c b/pjsip/src/pjsua/getopt.c
index eae96f1b..c6e67d1b 100644
--- a/pjsip/src/pjsua/getopt.c
+++ b/pjsip/src/pjsua/getopt.c
@@ -29,7 +29,7 @@
  *
  * modified by Mike Borella <mike_borella@mw.3com.com>
  *
- * $Id: getopt.c,v 1.4 2000/10/30 22:06:03 mborella Exp $
+ * $Id$
  */
 
 #ifdef HAVE_CONFIG_H
@@ -295,7 +295,7 @@ static char *posixly_correct;
    On some systems, it contains special magic macros that don't work
    in GCC.  */
 #include <string.h>
-#define	my_index	pj_native_strchr
+#define	my_index	pj_ansi_strchr
 #else
 
 static char *
@@ -485,7 +485,8 @@ _getopt_initialize (argc, argv, optstring)
 
   nextchar = NULL;
 
-  posixly_correct = getenv ("POSIXLY_CORRECT");
+  //posixly_correct = getenv ("POSIXLY_CORRECT");
+  posixly_correct = NULL;
 
   /* Determine how to handle the ordering of options and nonoptions.  */
 
@@ -661,7 +662,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
 	 then exchange with previous non-options as if it were an option,
 	 then skip everything else like a non-option.  */
 
-      if (optind != argc && !pj_native_strcmp(argv[optind], "--"))
+      if (optind != argc && !pj_ansi_strcmp(argv[optind], "--"))
 	{
 	  optind++;
 
diff --git a/pjsip/src/pjsua/main.c b/pjsip/src/pjsua/main.c
index 4bc1f6a9..37fde773 100644
--- a/pjsip/src/pjsua/main.c
+++ b/pjsip/src/pjsua/main.c
@@ -17,7 +17,6 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
  */
 #include "pjsua.h"
-#include "getopt.h"
 #include <stdlib.h>
 
 
@@ -25,18 +24,6 @@
 
 static pjsip_inv_session *inv_session;
 
-static const char *inv_state_names[] =
-{
-    "NULL      ",
-    "CALLING   ",
-    "INCOMING  ",
-    "EARLY     ",
-    "CONNECTING",
-    "CONFIRMED ",
-    "DISCONNCTD",
-    "TERMINATED",
-};
-
 /*
  * Notify UI when invite state has changed.
  */
@@ -45,7 +32,7 @@ void pjsua_ui_inv_on_state_changed(pjsip_inv_session *inv, pjsip_event *e)
     PJ_UNUSED_ARG(e);
 
     PJ_LOG(3,(THIS_FILE, "INVITE session state changed to %s", 
-	      inv_state_names[inv->state]));
+	      pjsua_inv_state_names[inv->state]));
 
     if (inv->state == PJSIP_INV_STATE_DISCONNECTED) {
 	if (inv == inv_session)
@@ -58,123 +45,18 @@ void pjsua_ui_inv_on_state_changed(pjsip_inv_session *inv, pjsip_event *e)
     }
 }
 
-
-static void print_invite_session(const char *title,
-				 struct pjsua_inv_data *inv_data, 
-				 char *buf, pj_size_t size)
-{
-    int len;
-    pjsip_inv_session *inv = inv_data->inv;
-    pjsip_dialog *dlg = inv->dlg;
-    char userinfo[128];
-
-    /* Dump invite sesion info. */
-
-    len = pjsip_hdr_print_on(dlg->remote.info, userinfo, sizeof(userinfo));
-    if (len < 1)
-	pj_native_strcpy(userinfo, "<--uri too long-->");
-    else
-	userinfo[len] = '\0';
-    
-    len = pj_snprintf(buf, size, "%s[%s] %s",
-		      title,
-		      inv_state_names[inv->state],
-		      userinfo);
-    if (len < 1 || len >= (int)size) {
-	pj_native_strcpy(buf, "<--uri too long-->");
-	len = 18;
-    } else
-	buf[len] = '\0';
-}
-
-static void dump_media_session(pjmedia_session *session)
-{
-    unsigned i;
-    pjmedia_session_info info;
-
-    pjmedia_session_get_info(session, &info);
-
-    for (i=0; i<info.stream_cnt; ++i) {
-	pjmedia_stream_stat strm_stat;
-	const char *rem_addr;
-	int rem_port;
-	const char *dir;
-
-	pjmedia_session_get_stream_stat(session, i, &strm_stat);
-	rem_addr = pj_inet_ntoa(info.stream_info[i].rem_addr.sin_addr);
-	rem_port = pj_ntohs(info.stream_info[i].rem_addr.sin_port);
-
-	if (info.stream_info[i].dir == PJMEDIA_DIR_ENCODING)
-	    dir = "sendonly";
-	else if (info.stream_info[i].dir == PJMEDIA_DIR_DECODING)
-	    dir = "recvonly";
-	else if (info.stream_info[i].dir == PJMEDIA_DIR_ENCODING_DECODING)
-	    dir = "sendrecv";
-	else
-	    dir = "inactive";
-
-	
-	PJ_LOG(3,(THIS_FILE, 
-		  "%s[Media strm#%d] %.*s, %s, peer=%s:%d",
-		  "               ",
-		  i,
-		  info.stream_info[i].fmt.encoding_name.slen,
-		  info.stream_info[i].fmt.encoding_name.ptr,
-		  dir,
-		  rem_addr, rem_port));
-	PJ_LOG(3,(THIS_FILE, 
-		  "%s tx {pkt=%u, bytes=%u} rx {pkt=%u, bytes=%u}",
-		  "                             ",
-		  strm_stat.enc.pkt, strm_stat.enc.bytes,
-		  strm_stat.dec.pkt, strm_stat.dec.bytes));
-
-    }
-}
-
-/*
- * Dump application states.
+/**
+ * Notify UI when registration status has changed.
  */
-static void pjsua_dump(void)
+void pjsua_ui_regc_on_state_changed(int code)
 {
-    struct pjsua_inv_data *inv_data;
-    char buf[128];
-    unsigned log_decor;
-
-    log_decor = pj_log_get_decor();
-    pj_log_set_decor(PJ_LOG_HAS_NEWLINE);
-
-    pjsip_endpt_dump(pjsua.endpt, 1);
-    pjmedia_endpt_dump(pjsua.med_endpt);
-    pjsip_ua_dump();
-
+    PJ_UNUSED_ARG(code);
 
-    /* Dump all invite sessions: */
-    PJ_LOG(3,(THIS_FILE, "Dumping invite sessions:"));
-
-    if (pj_list_empty(&pjsua.inv_list)) {
-
-	PJ_LOG(3,(THIS_FILE, "  - no sessions -"));
-
-    } else {
-
-	inv_data = pjsua.inv_list.next;
-
-	while (inv_data != &pjsua.inv_list) {
-
-	    print_invite_session("  ", inv_data, buf, sizeof(buf));
-	    PJ_LOG(3,(THIS_FILE, "%s", buf));
-
-	    if (inv_data->session)
-		dump_media_session(inv_data->session);
-
-	    inv_data = inv_data->next;
-	}
-    }
-
-    pj_log_set_decor(log_decor);
+    // Log already written.
 }
 
 
+
 /*
  * Show a bit of help.
  */
@@ -264,6 +146,9 @@ static void ui_console_main(void)
 		if (!input("Answer with code (100-699)", buf, sizeof(buf)))
 		    continue;
 		
+		if (atoi(buf) < 100)
+		    continue;
+
 		status = pjsip_inv_answer(inv_session, atoi(buf), NULL, NULL, 
 					  &tdata);
 		if (status == PJ_SUCCESS)
@@ -433,376 +318,22 @@ void app_logging_shutdown(void)
 }
 
 /*****************************************************************************
- * Command line argument processing:
+ * Error display:
  */
 
-
-/* Show usage */
-static void usage(void)
-{
-    puts("Usage:");
-    puts("  pjsua [options] [sip-url]");
-    puts("");
-    puts("  [sip-url]   Default URL to invite.");
-    puts("");
-    puts("General options:");
-    puts("  --config-file=file  Read the config/arguments from file.");
-    puts("  --log-file=fname    Log to filename (default stderr)");
-    puts("  --log-level=N       Set log max level to N (0(none) to 6(trace))");
-    puts("  --app-log-level=N   Set log max level for stdout display to N");
-    puts("  --help              Display this help screen");
-    puts("  --version           Display version info");
-    puts("");
-    puts("Media options:");
-    puts("  --null-audio        Use NULL audio device");
-    puts("");
-    puts("User Agent options:");
-    puts("  --auto-answer=sec   Auto-answer all incoming calls after sec seconds.");
-    puts("  --auto-hangup=sec   Auto-hangup all calls after sec seconds.");
-    puts("");
-    puts("SIP options:");
-    puts("  --local-port=port   Set TCP/UDP port");
-    puts("  --id=url            Set the URL of local ID (used in From header)");
-    puts("  --contact=url       Override the Contact information");
-    puts("  --proxy=url         Set the URL of proxy server");
-    puts("  --outbound=url      Set the URL of outbound proxy server");
-    puts("  --registrar=url     Set the URL of registrar server");
-    puts("  --reg-timeout=secs  Set registration interval to secs (default 3600)");
-    puts("");
-    puts("Authentication options:");
-    puts("  --realm=string      Set realm");
-    puts("  --username=string   Set authentication username");
-    puts("  --password=string   Set authentication password");
-    puts("");
-    puts("STUN options (all must be specified):");
-    puts("  --use-stun1=host[:port]");
-    puts("  --use-stun2=host[:port]  Use STUN and set host name and port of STUN servers");
-    puts("");
-    //puts("SIMPLE options (may be specified more than once):");
-    //puts("  --add-buddy url     Add the specified URL to the buddy list.");
-    //puts("  --offer-x-ms-msg    Offer \"x-ms-message\" in outgoing INVITE");
-    //puts("  --no-presence	Do not subscribe presence of buddies");
-    puts("");
-    fflush(stdout);
-}
-
-
 /*
- * Verify that valid SIP url is given.
+ * Display error message for the specified error code.
  */
-static pj_status_t verify_sip_url(char *url)
+void pjsua_perror(const char *title, pj_status_t status)
 {
-    pjsip_uri *p;
-    pj_pool_t *pool;
-    int len = (url ? strlen(url) : 0);
-
-    if (!len) return -1;
-
-    pool = pj_pool_create(&pjsua.cp.factory, "check%p", 1024, 0, NULL);
-    if (!pool) return -1;
-
-    p = pjsip_parse_uri(pool, url, len, 0);
-    if (!p || pj_stricmp2(pjsip_uri_get_scheme(p), "sip") != 0)
-	p = NULL;
-
-    pj_pool_release(pool);
-    return p ? 0 : -1;
-}
-
+    char errmsg[PJ_ERR_MSG_SIZE];
 
-/*
- * Read command arguments from config file.
- */
-static int read_config_file(pj_pool_t *pool, const char *filename, 
-			    int *app_argc, char ***app_argv)
-{
-    int i;
-    FILE *fhnd;
-    char line[200];
-    int argc = 0;
-    char **argv;
-    enum { MAX_ARGS = 64 };
-
-    /* Allocate MAX_ARGS+1 (argv needs to be terminated with NULL argument) */
-    argv = pj_pool_calloc(pool, MAX_ARGS+1, sizeof(char*));
-    argv[argc++] = *app_argv[0];
-
-    /* Open config file. */
-    fhnd = fopen(filename, "rt");
-    if (!fhnd) {
-	printf("Unable to open config file %s\n", filename);
-	fflush(stdout);
-	return -1;
-    }
-
-    /* Scan tokens in the file. */
-    while (argc < MAX_ARGS && !feof(fhnd)) {
-	char *token, *p = line;
-
-	if (fgets(line, sizeof(line), fhnd) == NULL) break;
-
-	for (token = strtok(p, " \t\r\n"); argc < MAX_ARGS; 
-	     token = strtok(NULL, " \t\r\n"))
-	{
-	    int token_len;
-	    
-	    if (!token) break;
-	    if (*token == '#') break;
-
-	    token_len = strlen(token);
-	    if (!token_len)
-		continue;
-	    argv[argc] = pj_pool_alloc(pool, token_len+1);
-	    pj_memcpy(argv[argc], token, token_len+1);
-	    ++argc;
-	}
-    }
-
-    /* Copy arguments from command line */
-    for (i=1; i<*app_argc && argc < MAX_ARGS; ++i)
-	argv[argc++] = (*app_argv)[i];
-
-    if (argc == MAX_ARGS && (i!=*app_argc || !feof(fhnd))) {
-	printf("Too many arguments specified in cmd line/config file\n");
-	fflush(stdout);
-	fclose(fhnd);
-	return -1;
-    }
-
-    fclose(fhnd);
-
-    /* Assign the new command line back to the original command line. */
-    *app_argc = argc;
-    *app_argv = argv;
-    return 0;
+    pj_strerror(status, errmsg, sizeof(errmsg));
 
+    PJ_LOG(1,(THIS_FILE, "%s: %s [code=%d]", title, errmsg, status));
 }
 
 
-/* Parse arguments. */
-static pj_status_t parse_args(int argc, char *argv[])
-{
-    int c;
-    int option_index;
-    enum { OPT_CONFIG_FILE, OPT_LOG_FILE, OPT_LOG_LEVEL, OPT_APP_LOG_LEVEL, 
-	   OPT_HELP, OPT_VERSION, OPT_NULL_AUDIO,
-	   OPT_LOCAL_PORT, OPT_PROXY, OPT_OUTBOUND_PROXY, OPT_REGISTRAR,
-	   OPT_REG_TIMEOUT, OPT_ID, OPT_CONTACT, 
-	   OPT_REALM, OPT_USERNAME, OPT_PASSWORD,
-	   OPT_USE_STUN1, OPT_USE_STUN2, 
-	   OPT_ADD_BUDDY, OPT_OFFER_X_MS_MSG, OPT_NO_PRESENCE,
-	   OPT_AUTO_ANSWER, OPT_AUTO_HANGUP};
-    struct option long_options[] = {
-	{ "config-file",1, 0, OPT_CONFIG_FILE},
-	{ "log-file",	1, 0, OPT_LOG_FILE},
-	{ "log-level",	1, 0, OPT_LOG_LEVEL},
-	{ "app-log-level",1,0,OPT_APP_LOG_LEVEL},
-	{ "help",	0, 0, OPT_HELP},
-	{ "version",	0, 0, OPT_VERSION},
-	{ "null-audio", 0, 0, OPT_NULL_AUDIO},
-	{ "local-port", 1, 0, OPT_LOCAL_PORT},
-	{ "proxy",	1, 0, OPT_PROXY},
-	{ "outbound",	1, 0, OPT_OUTBOUND_PROXY},
-	{ "registrar",	1, 0, OPT_REGISTRAR},
-	{ "reg-timeout",1, 0, OPT_REG_TIMEOUT},
-	{ "id",		1, 0, OPT_ID},
-	{ "contact",	1, 0, OPT_CONTACT},
-	{ "realm",	1, 0, OPT_REALM},
-	{ "username",	1, 0, OPT_USERNAME},
-	{ "password",	1, 0, OPT_PASSWORD},
-	{ "use-stun1",  1, 0, OPT_USE_STUN1},
-	{ "use-stun2",  1, 0, OPT_USE_STUN2},
-	{ "add-buddy",  1, 0, OPT_ADD_BUDDY},
-	{ "offer-x-ms-msg",0,0,OPT_OFFER_X_MS_MSG},
-	{ "no-presence", 0, 0, OPT_NO_PRESENCE},
-	{ "auto-answer",1, 0, OPT_AUTO_ANSWER},
-	{ "auto-hangup",1, 0, OPT_AUTO_HANGUP},
-	{ NULL, 0, 0, 0}
-    };
-    pj_status_t status;
-    char *config_file = NULL;
-
-    /* Run getopt once to see if user specifies config file to read. */
-    while ((c=getopt_long(argc, argv, "", long_options, &option_index)) != -1) {
-	switch (c) {
-	case OPT_CONFIG_FILE:
-	    config_file = optarg;
-	    break;
-	}
-	if (config_file)
-	    break;
-    }
-
-    if (config_file) {
-	status = read_config_file(pjsua.pool, config_file, &argc, &argv);
-	if (status != 0)
-	    return status;
-    }
-
-
-    /* Reinitialize and re-run getopt again, possibly with new arguments
-     * read from config file.
-     */
-    optind = 0;
-    while ((c=getopt_long(argc, argv, "", long_options, &option_index)) != -1) {
-	char *p;
-	pj_str_t tmp;
-	long lval;
-
-	switch (c) {
-
-	case OPT_LOG_FILE:
-	    pjsua.log_filename = optarg;
-	    break;
-
-	case OPT_LOG_LEVEL:
-	    c = pj_strtoul(pj_cstr(&tmp, optarg));
-	    if (c < 0 || c > 6) {
-		printf("Error: expecting integer value 0-6 for --log-level\n");
-		return PJ_EINVAL;
-	    }
-	    pj_log_set_level( c );
-	    break;
-
-	case OPT_APP_LOG_LEVEL:
-	    pjsua.app_log_level = pj_strtoul(pj_cstr(&tmp, optarg));
-	    if (pjsua.app_log_level < 0 || pjsua.app_log_level > 6) {
-		printf("Error: expecting integer value 0-6 for --app-log-level\n");
-		return PJ_EINVAL;
-	    }
-	    break;
-
-	case OPT_HELP:
-	    usage();
-	    return PJ_EINVAL;
-
-	case OPT_VERSION:   /* version */
-	    pj_dump_config();
-	    return PJ_EINVAL;
-
-	case OPT_NULL_AUDIO:
-	    pjsua.null_audio = 1;
-	    break;
-
-	case OPT_LOCAL_PORT:   /* local-port */
-	    lval = pj_strtoul(pj_cstr(&tmp, optarg));
-	    if (lval < 1 || lval > 65535) {
-		printf("Error: expecting integer value for --local-port\n");
-		return PJ_EINVAL;
-	    }
-	    pjsua.sip_port = (pj_uint16_t)lval;
-	    break;
-
-	case OPT_PROXY:   /* proxy */
-	    if (verify_sip_url(optarg) != 0) {
-		printf("Error: invalid SIP URL '%s' in proxy argument\n", optarg);
-		return PJ_EINVAL;
-	    }
-	    pjsua.proxy = pj_str(optarg);
-	    break;
-
-	case OPT_OUTBOUND_PROXY:   /* outbound proxy */
-	    if (verify_sip_url(optarg) != 0) {
-		printf("Error: invalid SIP URL '%s' in outbound proxy argument\n", optarg);
-		return PJ_EINVAL;
-	    }
-	    pjsua.outbound_proxy = pj_str(optarg);
-	    break;
-
-	case OPT_REGISTRAR:   /* registrar */
-	    if (verify_sip_url(optarg) != 0) {
-		printf("Error: invalid SIP URL '%s' in registrar argument\n", optarg);
-		return PJ_EINVAL;
-	    }
-	    pjsua.registrar_uri = pj_str(optarg);
-	    break;
-
-	case OPT_REG_TIMEOUT:   /* reg-timeout */
-	    pjsua.reg_timeout = pj_strtoul(pj_cstr(&tmp,optarg));
-	    if (pjsua.reg_timeout < 1 || pjsua.reg_timeout > 3600) {
-		printf("Error: invalid value for --reg-timeout (expecting 1-3600)\n");
-		return PJ_EINVAL;
-	    }
-	    break;
-
-	case OPT_ID:   /* id */
-	    if (verify_sip_url(optarg) != 0) {
-		printf("Error: invalid SIP URL '%s' in local id argument\n", optarg);
-		return PJ_EINVAL;
-	    }
-	    pjsua.local_uri = pj_str(optarg);
-	    break;
-
-	case OPT_CONTACT:   /* contact */
-	    if (verify_sip_url(optarg) != 0) {
-		printf("Error: invalid SIP URL '%s' in contact argument\n", optarg);
-		return PJ_EINVAL;
-	    }
-	    pjsua.contact_uri = pj_str(optarg);
-	    break;
-
-	case OPT_USERNAME:   /* Default authentication user */
-	    if (!pjsua.cred_count) pjsua.cred_count = 1;
-	    pjsua.cred_info[0].username = pj_str(optarg);
-	    break;
-
-	case OPT_REALM:	    /* Default authentication realm. */
-	    if (!pjsua.cred_count) pjsua.cred_count = 1;
-	    pjsua.cred_info[0].realm = pj_str(optarg);
-	    break;
-
-	case OPT_PASSWORD:   /* authentication password */
-	    if (!pjsua.cred_count) pjsua.cred_count = 1;
-	    pjsua.cred_info[0].data_type = 0;
-	    pjsua.cred_info[0].data = pj_str(optarg);
-	    break;
-
-	case OPT_USE_STUN1:   /* STUN server 1 */
-	    p = pj_native_strchr(optarg, ':');
-	    if (p) {
-		*p = '\0';
-		pjsua.stun_srv1 = pj_str(optarg);
-		pjsua.stun_port1 = pj_strtoul(pj_cstr(&tmp, p+1));
-		if (pjsua.stun_port1 < 1 || pjsua.stun_port1 > 65535) {
-		    printf("Error: expecting port number with option --use-stun1\n");
-		    return PJ_EINVAL;
-		}
-	    } else {
-		pjsua.stun_port1 = 3478;
-		pjsua.stun_srv1 = pj_str(optarg);
-	    }
-	    break;
-
-	case OPT_USE_STUN2:   /* STUN server 2 */
-	    p = pj_native_strchr(optarg, ':');
-	    if (p) {
-		*p = '\0';
-		pjsua.stun_srv2 = pj_str(optarg);
-		pjsua.stun_port2 = pj_strtoul(pj_cstr(&tmp,p+1));
-		if (pjsua.stun_port2 < 1 || pjsua.stun_port2 > 65535) {
-		    printf("Error: expecting port number with option --use-stun2\n");
-		    return PJ_EINVAL;
-		}
-	    } else {
-		pjsua.stun_port2 = 3478;
-		pjsua.stun_srv2 = pj_str(optarg);
-	    }
-	    break;
-	}
-    }
-
-    if (optind != argc) {
-	printf("Error: unknown options %s\n", argv[optind]);
-	return PJ_EINVAL;
-    }
-
-    if (pjsua.reg_timeout == 0)
-	pjsua.reg_timeout = 3600;
-
-
-    return PJ_SUCCESS;
-}
-
 
 
 /*****************************************************************************
@@ -824,7 +355,7 @@ int main(int argc, char *argv[])
 
     /* Parse command line arguments: */
 
-    if (parse_args(argc, argv) != PJ_SUCCESS)
+    if (pjsua_parse_args(argc, argv) != PJ_SUCCESS)
 	return 1;
 
 
diff --git a/pjsip/src/pjsua/pjsua.h b/pjsip/src/pjsua/pjsua.h
index 8f9b31c0..ebb97a0d 100644
--- a/pjsip/src/pjsua/pjsua.h
+++ b/pjsip/src/pjsua/pjsua.h
@@ -41,6 +41,11 @@
 PJ_BEGIN_DECL
 
 
+/**
+ * Max buddies in buddy list.
+ */
+#define PJSUA_MAX_BUDDIES   32
+
 /** 
  * Structure to be attached to all dialog. 
  * Given a dialog "dlg", application can retrieve this structure
@@ -52,6 +57,7 @@ struct pjsua_inv_data
 
     pjsip_inv_session	*inv;
     pjmedia_session	*session;
+    void		*mod_data[PJSIP_MAX_MODULE];
 };
 
 
@@ -91,11 +97,12 @@ struct pjsua
     pjsip_regc	    *regc;
     pj_int32_t	     reg_timeout;
     pj_timer_entry   regc_timer;
+    int		     regc_last_code;/**< Last status last register.	*/
 
 
     /* Authentication credentials: */
 
-    int		     cred_count;
+    unsigned	     cred_count;
     pjsip_cred_info  cred_info[4];
 
 
@@ -128,9 +135,16 @@ struct pjsua
     unsigned	     log_decor;	    /**< Log decoration.		*/
     char	    *log_filename;  /**< Log filename.			*/
 
+
     /* List of invite sessions: */
 
     struct pjsua_inv_data inv_list;
+
+
+    /* Buddy list: */
+
+    unsigned	    buddy_cnt;
+    pj_str_t	    buddies[PJSUA_MAX_BUDDIES];
 };
 
 
@@ -251,7 +265,49 @@ void pjsua_regc_update(pj_bool_t renew);
  */
 void pjsua_ui_inv_on_state_changed(pjsip_inv_session *inv, pjsip_event *e);
 
+/**
+ * Notify UI when registration status has changed.
+ */
+void pjsua_ui_regc_on_state_changed(int code);
+
+
+/*****************************************************************************
+ * Utilities.
+ *
+ */
+
+/** String to describe invite session states */
+extern const char *pjsua_inv_state_names[];
+
+/**
+ * Parse arguments (pjsua_opt.c).
+ */
+pj_status_t pjsua_parse_args(int argc, char *argv[]);
+
+/**
+ * Load settings from a file.
+ */
+pj_status_t pjsua_load_settings(const char *filename);
+
+/**
+ * Save settings to a file.
+ */
+pj_status_t pjsua_save_settings(const char *filename);
+
+
+/*
+ * Verify that valid SIP url is given.
+ * @return  PJ_SUCCESS if valid.
+ */
+pj_status_t pjsua_verify_sip_url(const char *c_url);
+
+/*
+ * Dump application states.
+ */
+void pjsua_dump(void);
+
 
 PJ_END_DECL
 
+
 #endif	/* __PJSUA_H__ */
diff --git a/pjsip/src/pjsua/pjsua_core.c b/pjsip/src/pjsua/pjsua_core.c
index 6d7a28f7..f97c8f43 100644
--- a/pjsip/src/pjsua/pjsua_core.c
+++ b/pjsip/src/pjsua/pjsua_core.c
@@ -82,18 +82,6 @@ void pjsua_default(void)
 }
 
 
-/*
- * Display error message for the specified error code.
- */
-void pjsua_perror(const char *title, pj_status_t status)
-{
-    char errmsg[PJ_ERR_MSG_SIZE];
-
-    pj_strerror(status, errmsg, sizeof(errmsg));
-
-    PJ_LOG(1,(THIS_FILE, "%s: %s [code=%d]", title, errmsg, status));
-}
-
 
 /*
  * Handler for receiving incoming requests.
@@ -511,7 +499,7 @@ pj_status_t pjsua_start(void)
 	pjsip_host_port addr_name;
 
 	addr_name.host.ptr = pj_inet_ntoa(pjsua.sip_sock_name.sin_addr);
-	addr_name.host.slen = pj_native_strlen(addr_name.host.ptr);
+	addr_name.host.slen = pj_ansi_strlen(addr_name.host.ptr);
 	addr_name.port = pj_ntohs(pjsua.sip_sock_name.sin_port);
 
 	/* Create UDP transport from previously created UDP socket: */
diff --git a/pjsip/src/pjsua/pjsua_opt.c b/pjsip/src/pjsua/pjsua_opt.c
new file mode 100644
index 00000000..61e5adba
--- /dev/null
+++ b/pjsip/src/pjsua/pjsua_opt.c
@@ -0,0 +1,675 @@
+/* $Id$ */
+/* 
+ * Copyright (C) 2003-2006 Benny Prijono <benny@prijono.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+#include "pjsua.h"
+#include "getopt.h"
+#include <stdlib.h>
+
+#define THIS_FILE   "pjsua_opt.c"
+
+
+const char *pjsua_inv_state_names[] =
+{
+    "NULL      ",
+    "CALLING   ",
+    "INCOMING  ",
+    "EARLY     ",
+    "CONNECTING",
+    "CONFIRMED ",
+    "DISCONNCTD",
+    "TERMINATED",
+};
+
+
+
+/* Show usage */
+static void usage(void)
+{
+    puts("Usage:");
+    puts("  pjsua [options] [sip-url]");
+    puts("");
+    puts("  [sip-url]   Default URL to invite.");
+    puts("");
+    puts("General options:");
+    puts("  --config-file=file  Read the config/arguments from file.");
+    puts("  --log-file=fname    Log to filename (default stderr)");
+    puts("  --log-level=N       Set log max level to N (0(none) to 6(trace))");
+    puts("  --app-log-level=N   Set log max level for stdout display to N");
+    puts("  --help              Display this help screen");
+    puts("  --version           Display version info");
+    puts("");
+    puts("Media options:");
+    puts("  --null-audio        Use NULL audio device");
+    //puts("");
+    //puts("User Agent options:");
+    //puts("  --auto-answer=sec   Auto-answer all incoming calls after sec seconds.");
+    //puts("  --auto-hangup=sec   Auto-hangup all calls after sec seconds.");
+    puts("");
+    puts("SIP options:");
+    puts("  --local-port=port   Set TCP/UDP port");
+    puts("  --id=url            Set the URL of local ID (used in From header)");
+    puts("  --contact=url       Override the Contact information");
+    puts("  --proxy=url         Set the URL of proxy server");
+    puts("  --outbound=url      Set the URL of outbound proxy server");
+    puts("  --registrar=url     Set the URL of registrar server");
+    puts("  --reg-timeout=secs  Set registration interval to secs (default 3600)");
+    puts("");
+    puts("Authentication options:");
+    puts("  --realm=string      Set realm");
+    puts("  --username=string   Set authentication username");
+    puts("  --password=string   Set authentication password");
+    puts("");
+    puts("STUN options (all must be specified):");
+    puts("  --use-stun1=host[:port]");
+    puts("  --use-stun2=host[:port]  Use STUN and set host name and port of STUN servers");
+    puts("");
+    puts("SIMPLE options (may be specified more than once):");
+    puts("  --add-buddy url     Add the specified URL to the buddy list.");
+    //puts("  --offer-x-ms-msg    Offer \"x-ms-message\" in outgoing INVITE");
+    //puts("  --no-presence	Do not subscribe presence of buddies");
+    puts("");
+    fflush(stdout);
+}
+
+
+
+/*
+ * Verify that valid SIP url is given.
+ */
+pj_status_t pjsua_verify_sip_url(const char *c_url)
+{
+    pjsip_uri *p;
+    pj_pool_t *pool;
+    char *url;
+    int len = (c_url ? pj_ansi_strlen(c_url) : 0);
+
+    if (!len) return -1;
+
+    pool = pj_pool_create(&pjsua.cp.factory, "check%p", 1024, 0, NULL);
+    if (!pool) return -1;
+
+    url = pj_pool_alloc(pool, len+1);
+    pj_ansi_strcpy(url, c_url);
+
+    p = pjsip_parse_uri(pool, url, len, 0);
+    if (!p || pj_stricmp2(pjsip_uri_get_scheme(p), "sip") != 0)
+	p = NULL;
+
+    pj_pool_release(pool);
+    return p ? 0 : -1;
+}
+
+
+/*
+ * Read command arguments from config file.
+ */
+static int read_config_file(pj_pool_t *pool, const char *filename, 
+			    int *app_argc, char ***app_argv)
+{
+    int i;
+    FILE *fhnd;
+    char line[200];
+    int argc = 0;
+    char **argv;
+    enum { MAX_ARGS = 64 };
+
+    /* Allocate MAX_ARGS+1 (argv needs to be terminated with NULL argument) */
+    argv = pj_pool_calloc(pool, MAX_ARGS+1, sizeof(char*));
+    argv[argc++] = *app_argv[0];
+
+    /* Open config file. */
+    fhnd = fopen(filename, "rt");
+    if (!fhnd) {
+	printf("Unable to open config file %s\n", filename);
+	fflush(stdout);
+	return -1;
+    }
+
+    /* Scan tokens in the file. */
+    while (argc < MAX_ARGS && !feof(fhnd)) {
+	char *token, *p = line;
+
+	if (fgets(line, sizeof(line), fhnd) == NULL) break;
+
+	for (token = strtok(p, " \t\r\n"); argc < MAX_ARGS; 
+	     token = strtok(NULL, " \t\r\n"))
+	{
+	    int token_len;
+	    
+	    if (!token) break;
+	    if (*token == '#') break;
+
+	    token_len = strlen(token);
+	    if (!token_len)
+		continue;
+	    argv[argc] = pj_pool_alloc(pool, token_len+1);
+	    pj_memcpy(argv[argc], token, token_len+1);
+	    ++argc;
+	}
+    }
+
+    /* Copy arguments from command line */
+    for (i=1; i<*app_argc && argc < MAX_ARGS; ++i)
+	argv[argc++] = (*app_argv)[i];
+
+    if (argc == MAX_ARGS && (i!=*app_argc || !feof(fhnd))) {
+	printf("Too many arguments specified in cmd line/config file\n");
+	fflush(stdout);
+	fclose(fhnd);
+	return -1;
+    }
+
+    fclose(fhnd);
+
+    /* Assign the new command line back to the original command line. */
+    *app_argc = argc;
+    *app_argv = argv;
+    return 0;
+
+}
+
+
+/* Parse arguments. */
+pj_status_t pjsua_parse_args(int argc, char *argv[])
+{
+    int c;
+    int option_index;
+    enum { OPT_CONFIG_FILE, OPT_LOG_FILE, OPT_LOG_LEVEL, OPT_APP_LOG_LEVEL, 
+	   OPT_HELP, OPT_VERSION, OPT_NULL_AUDIO,
+	   OPT_LOCAL_PORT, OPT_PROXY, OPT_OUTBOUND_PROXY, OPT_REGISTRAR,
+	   OPT_REG_TIMEOUT, OPT_ID, OPT_CONTACT, 
+	   OPT_REALM, OPT_USERNAME, OPT_PASSWORD,
+	   OPT_USE_STUN1, OPT_USE_STUN2, 
+	   OPT_ADD_BUDDY, OPT_OFFER_X_MS_MSG, OPT_NO_PRESENCE,
+	   OPT_AUTO_ANSWER, OPT_AUTO_HANGUP};
+    struct option long_options[] = {
+	{ "config-file",1, 0, OPT_CONFIG_FILE},
+	{ "log-file",	1, 0, OPT_LOG_FILE},
+	{ "log-level",	1, 0, OPT_LOG_LEVEL},
+	{ "app-log-level",1,0,OPT_APP_LOG_LEVEL},
+	{ "help",	0, 0, OPT_HELP},
+	{ "version",	0, 0, OPT_VERSION},
+	{ "null-audio", 0, 0, OPT_NULL_AUDIO},
+	{ "local-port", 1, 0, OPT_LOCAL_PORT},
+	{ "proxy",	1, 0, OPT_PROXY},
+	{ "outbound",	1, 0, OPT_OUTBOUND_PROXY},
+	{ "registrar",	1, 0, OPT_REGISTRAR},
+	{ "reg-timeout",1, 0, OPT_REG_TIMEOUT},
+	{ "id",		1, 0, OPT_ID},
+	{ "contact",	1, 0, OPT_CONTACT},
+	{ "realm",	1, 0, OPT_REALM},
+	{ "username",	1, 0, OPT_USERNAME},
+	{ "password",	1, 0, OPT_PASSWORD},
+	{ "use-stun1",  1, 0, OPT_USE_STUN1},
+	{ "use-stun2",  1, 0, OPT_USE_STUN2},
+	{ "add-buddy",  1, 0, OPT_ADD_BUDDY},
+	{ "offer-x-ms-msg",0,0,OPT_OFFER_X_MS_MSG},
+	{ "no-presence", 0, 0, OPT_NO_PRESENCE},
+	{ "auto-answer",1, 0, OPT_AUTO_ANSWER},
+	{ "auto-hangup",1, 0, OPT_AUTO_HANGUP},
+	{ NULL, 0, 0, 0}
+    };
+    pj_status_t status;
+    char *config_file = NULL;
+
+    /* Run getopt once to see if user specifies config file to read. */
+    while ((c=getopt_long(argc, argv, "", long_options, &option_index)) != -1) {
+	switch (c) {
+	case OPT_CONFIG_FILE:
+	    config_file = optarg;
+	    break;
+	}
+	if (config_file)
+	    break;
+    }
+
+    if (config_file) {
+	status = read_config_file(pjsua.pool, config_file, &argc, &argv);
+	if (status != 0)
+	    return status;
+    }
+
+
+    /* Reinitialize and re-run getopt again, possibly with new arguments
+     * read from config file.
+     */
+    optind = 0;
+    while ((c=getopt_long(argc, argv, "", long_options, &option_index)) != -1) {
+	char *p;
+	pj_str_t tmp;
+	long lval;
+
+	switch (c) {
+
+	case OPT_LOG_FILE:
+	    pjsua.log_filename = optarg;
+	    break;
+
+	case OPT_LOG_LEVEL:
+	    c = pj_strtoul(pj_cstr(&tmp, optarg));
+	    if (c < 0 || c > 6) {
+		printf("Error: expecting integer value 0-6 for --log-level\n");
+		return PJ_EINVAL;
+	    }
+	    pj_log_set_level( c );
+	    break;
+
+	case OPT_APP_LOG_LEVEL:
+	    pjsua.app_log_level = pj_strtoul(pj_cstr(&tmp, optarg));
+	    if (pjsua.app_log_level < 0 || pjsua.app_log_level > 6) {
+		printf("Error: expecting integer value 0-6 for --app-log-level\n");
+		return PJ_EINVAL;
+	    }
+	    break;
+
+	case OPT_HELP:
+	    usage();
+	    return PJ_EINVAL;
+
+	case OPT_VERSION:   /* version */
+	    pj_dump_config();
+	    return PJ_EINVAL;
+
+	case OPT_NULL_AUDIO:
+	    pjsua.null_audio = 1;
+	    break;
+
+	case OPT_LOCAL_PORT:   /* local-port */
+	    lval = pj_strtoul(pj_cstr(&tmp, optarg));
+	    if (lval < 1 || lval > 65535) {
+		printf("Error: expecting integer value for --local-port\n");
+		return PJ_EINVAL;
+	    }
+	    pjsua.sip_port = (pj_uint16_t)lval;
+	    break;
+
+	case OPT_PROXY:   /* proxy */
+	    if (pjsua_verify_sip_url(optarg) != 0) {
+		printf("Error: invalid SIP URL '%s' in proxy argument\n", optarg);
+		return PJ_EINVAL;
+	    }
+	    pjsua.proxy = pj_str(optarg);
+	    break;
+
+	case OPT_OUTBOUND_PROXY:   /* outbound proxy */
+	    if (pjsua_verify_sip_url(optarg) != 0) {
+		printf("Error: invalid SIP URL '%s' in outbound proxy argument\n", optarg);
+		return PJ_EINVAL;
+	    }
+	    pjsua.outbound_proxy = pj_str(optarg);
+	    break;
+
+	case OPT_REGISTRAR:   /* registrar */
+	    if (pjsua_verify_sip_url(optarg) != 0) {
+		printf("Error: invalid SIP URL '%s' in registrar argument\n", optarg);
+		return PJ_EINVAL;
+	    }
+	    pjsua.registrar_uri = pj_str(optarg);
+	    break;
+
+	case OPT_REG_TIMEOUT:   /* reg-timeout */
+	    pjsua.reg_timeout = pj_strtoul(pj_cstr(&tmp,optarg));
+	    if (pjsua.reg_timeout < 1 || pjsua.reg_timeout > 3600) {
+		printf("Error: invalid value for --reg-timeout (expecting 1-3600)\n");
+		return PJ_EINVAL;
+	    }
+	    break;
+
+	case OPT_ID:   /* id */
+	    if (pjsua_verify_sip_url(optarg) != 0) {
+		printf("Error: invalid SIP URL '%s' in local id argument\n", optarg);
+		return PJ_EINVAL;
+	    }
+	    pjsua.local_uri = pj_str(optarg);
+	    break;
+
+	case OPT_CONTACT:   /* contact */
+	    if (pjsua_verify_sip_url(optarg) != 0) {
+		printf("Error: invalid SIP URL '%s' in contact argument\n", optarg);
+		return PJ_EINVAL;
+	    }
+	    pjsua.contact_uri = pj_str(optarg);
+	    break;
+
+	case OPT_USERNAME:   /* Default authentication user */
+	    if (!pjsua.cred_count) pjsua.cred_count = 1;
+	    pjsua.cred_info[0].username = pj_str(optarg);
+	    break;
+
+	case OPT_REALM:	    /* Default authentication realm. */
+	    if (!pjsua.cred_count) pjsua.cred_count = 1;
+	    pjsua.cred_info[0].realm = pj_str(optarg);
+	    break;
+
+	case OPT_PASSWORD:   /* authentication password */
+	    if (!pjsua.cred_count) pjsua.cred_count = 1;
+	    pjsua.cred_info[0].data_type = 0;
+	    pjsua.cred_info[0].data = pj_str(optarg);
+	    break;
+
+	case OPT_USE_STUN1:   /* STUN server 1 */
+	    p = pj_ansi_strchr(optarg, ':');
+	    if (p) {
+		*p = '\0';
+		pjsua.stun_srv1 = pj_str(optarg);
+		pjsua.stun_port1 = pj_strtoul(pj_cstr(&tmp, p+1));
+		if (pjsua.stun_port1 < 1 || pjsua.stun_port1 > 65535) {
+		    printf("Error: expecting port number with option --use-stun1\n");
+		    return PJ_EINVAL;
+		}
+	    } else {
+		pjsua.stun_port1 = 3478;
+		pjsua.stun_srv1 = pj_str(optarg);
+	    }
+	    break;
+
+	case OPT_USE_STUN2:   /* STUN server 2 */
+	    p = pj_ansi_strchr(optarg, ':');
+	    if (p) {
+		*p = '\0';
+		pjsua.stun_srv2 = pj_str(optarg);
+		pjsua.stun_port2 = pj_strtoul(pj_cstr(&tmp,p+1));
+		if (pjsua.stun_port2 < 1 || pjsua.stun_port2 > 65535) {
+		    printf("Error: expecting port number with option --use-stun2\n");
+		    return PJ_EINVAL;
+		}
+	    } else {
+		pjsua.stun_port2 = 3478;
+		pjsua.stun_srv2 = pj_str(optarg);
+	    }
+	    break;
+
+	case OPT_ADD_BUDDY: /* Add to buddy list. */
+	    if (pjsua_verify_sip_url(optarg) != 0) {
+		printf("Error: invalid URL '%s' in --add-buddy option\n", optarg);
+		return -1;
+	    }
+	    if (pjsua.buddy_cnt == PJSUA_MAX_BUDDIES) {
+		printf("Error: too many buddies in buddy list.\n");
+		return -1;
+	    }
+	    pjsua.buddies[pjsua.buddy_cnt++] = pj_str(optarg);
+	    break;
+	}
+    }
+
+    if (optind != argc) {
+	printf("Error: unknown options %s\n", argv[optind]);
+	return PJ_EINVAL;
+    }
+
+    if (pjsua.reg_timeout == 0)
+	pjsua.reg_timeout = 3600;
+
+
+    return PJ_SUCCESS;
+}
+
+
+
+static void print_invite_session(const char *title,
+				 struct pjsua_inv_data *inv_data, 
+				 char *buf, pj_size_t size)
+{
+    int len;
+    pjsip_inv_session *inv = inv_data->inv;
+    pjsip_dialog *dlg = inv->dlg;
+    char userinfo[128];
+
+    /* Dump invite sesion info. */
+
+    len = pjsip_hdr_print_on(dlg->remote.info, userinfo, sizeof(userinfo));
+    if (len < 1)
+	pj_ansi_strcpy(userinfo, "<--uri too long-->");
+    else
+	userinfo[len] = '\0';
+    
+    len = pj_snprintf(buf, size, "%s[%s] %s",
+		      title,
+		      pjsua_inv_state_names[inv->state],
+		      userinfo);
+    if (len < 1 || len >= (int)size) {
+	pj_ansi_strcpy(buf, "<--uri too long-->");
+	len = 18;
+    } else
+	buf[len] = '\0';
+}
+
+static void dump_media_session(pjmedia_session *session)
+{
+    unsigned i;
+    pjmedia_session_info info;
+
+    pjmedia_session_get_info(session, &info);
+
+    for (i=0; i<info.stream_cnt; ++i) {
+	pjmedia_stream_stat strm_stat;
+	const char *rem_addr;
+	int rem_port;
+	const char *dir;
+
+	pjmedia_session_get_stream_stat(session, i, &strm_stat);
+	rem_addr = pj_inet_ntoa(info.stream_info[i].rem_addr.sin_addr);
+	rem_port = pj_ntohs(info.stream_info[i].rem_addr.sin_port);
+
+	if (info.stream_info[i].dir == PJMEDIA_DIR_ENCODING)
+	    dir = "sendonly";
+	else if (info.stream_info[i].dir == PJMEDIA_DIR_DECODING)
+	    dir = "recvonly";
+	else if (info.stream_info[i].dir == PJMEDIA_DIR_ENCODING_DECODING)
+	    dir = "sendrecv";
+	else
+	    dir = "inactive";
+
+	
+	PJ_LOG(3,(THIS_FILE, 
+		  "%s[Media strm#%d] %.*s, %s, peer=%s:%d",
+		  "               ",
+		  i,
+		  info.stream_info[i].fmt.encoding_name.slen,
+		  info.stream_info[i].fmt.encoding_name.ptr,
+		  dir,
+		  rem_addr, rem_port));
+	PJ_LOG(3,(THIS_FILE, 
+		  "%s tx {pkt=%u, bytes=%u} rx {pkt=%u, bytes=%u}",
+		  "                             ",
+		  strm_stat.enc.pkt, strm_stat.enc.bytes,
+		  strm_stat.dec.pkt, strm_stat.dec.bytes));
+
+    }
+}
+
+/*
+ * Dump application states.
+ */
+void pjsua_dump(void)
+{
+    struct pjsua_inv_data *inv_data;
+    char buf[128];
+    unsigned old_decor;
+
+    PJ_LOG(3,(THIS_FILE, "Start dumping application states:"));
+
+    old_decor = pj_log_get_decor();
+    pj_log_set_decor(old_decor & (PJ_LOG_HAS_NEWLINE | PJ_LOG_HAS_CR));
+
+    pjsip_endpt_dump(pjsua.endpt, 1);
+    pjmedia_endpt_dump(pjsua.med_endpt);
+    pjsip_ua_dump();
+
+
+    /* Dump all invite sessions: */
+    PJ_LOG(3,(THIS_FILE, "Dumping invite sessions:"));
+
+    if (pj_list_empty(&pjsua.inv_list)) {
+
+	PJ_LOG(3,(THIS_FILE, "  - no sessions -"));
+
+    } else {
+
+	inv_data = pjsua.inv_list.next;
+
+	while (inv_data != &pjsua.inv_list) {
+
+	    print_invite_session("  ", inv_data, buf, sizeof(buf));
+	    PJ_LOG(3,(THIS_FILE, "%s", buf));
+
+	    if (inv_data->session)
+		dump_media_session(inv_data->session);
+
+	    inv_data = inv_data->next;
+	}
+    }
+
+    pj_log_set_decor(old_decor);
+    PJ_LOG(3,(THIS_FILE, "Dump complete"));
+}
+
+
+/*
+ * Load settings.
+ */
+pj_status_t pjsua_load_settings(const char *filename)
+{
+    int argc = 3;
+    char *argv[] = { "pjsua", "--config-file", (char*)filename, NULL};
+
+    return pjsua_parse_args(argc, argv);
+}
+
+
+/*
+ * Save settings.
+ */
+pj_status_t pjsua_save_settings(const char *filename)
+{
+    unsigned i;
+    pj_str_t cfg;
+    char line[128];
+    pj_pool_t *pool;
+    FILE *fhnd;
+
+    /* Create pool for temporary buffer. */
+    pool = pj_pool_create(&pjsua.cp.factory, "settings", 4000, 0, NULL);
+    if (!pool)
+	return PJ_ENOMEM;
+
+
+    cfg.ptr = pj_pool_alloc(pool, 3800);
+    if (!cfg.ptr) {
+	pj_pool_release(pool);
+	return PJ_EBUG;
+    }
+    cfg.slen = 0;
+
+
+    /* Identity */
+    if (pjsua.local_uri.slen) {
+	pj_ansi_sprintf(line, "--id %.*s\n", 
+			(int)pjsua.local_uri.slen, 
+			pjsua.local_uri.ptr);
+	pj_strcat2(&cfg, line);
+    }
+
+    /* Credentials. */
+    for (i=0; i<pjsua.cred_count; ++i) {
+	if (pjsua.cred_info[i].realm.slen) {
+	    pj_ansi_sprintf(line, "--realm %.*s\n",
+				  (int)pjsua.cred_info[i].realm.slen,
+				  pjsua.cred_info[i].realm.ptr);
+	    pj_strcat2(&cfg, line);
+	}
+
+	pj_ansi_sprintf(line, "--username %.*s\n",
+			      (int)pjsua.cred_info[i].username.slen,
+			      pjsua.cred_info[i].username.ptr);
+	pj_strcat2(&cfg, line);
+
+	pj_ansi_sprintf(line, "--password %.*s\n",
+			      (int)pjsua.cred_info[i].data.slen,
+			      pjsua.cred_info[i].data.ptr);
+	pj_strcat2(&cfg, line);
+    }
+
+    /* Registrar server */
+    if (pjsua.registrar_uri.slen) {
+	pj_ansi_sprintf(line, "--registrar %.*s\n",
+			      (int)pjsua.registrar_uri.slen,
+			      pjsua.registrar_uri.ptr);
+	pj_strcat2(&cfg, line);
+    }
+
+
+    /* Outbound proxy */
+    if (pjsua.outbound_proxy.slen) {
+	pj_ansi_sprintf(line, "--outbound %.*s\n",
+			      (int)pjsua.outbound_proxy.slen,
+			      pjsua.outbound_proxy.ptr);
+	pj_strcat2(&cfg, line);
+    }
+
+    /* Media */
+    if (pjsua.null_audio)
+	pj_strcat2(&cfg, "--null-audio\n");
+
+
+    /* Transport. */
+    pj_ansi_sprintf(line, "--local-port %d\n", pjsua.sip_port);
+    pj_strcat2(&cfg, line);
+
+
+    /* STUN */
+    if (pjsua.stun_port1) {
+	pj_ansi_sprintf(line, "--use-stun1 %.*s:%d\n",
+			(int)pjsua.stun_srv1.slen, 
+			pjsua.stun_srv1.ptr, 
+			pjsua.stun_port1);
+	pj_strcat2(&cfg, line);
+    }
+
+    if (pjsua.stun_port2) {
+	pj_ansi_sprintf(line, "--use-stun2 %.*s:%d\n",
+			(int)pjsua.stun_srv2.slen, 
+			pjsua.stun_srv2.ptr, 
+			pjsua.stun_port2);
+	pj_strcat2(&cfg, line);
+    }
+
+
+    /* Add buddies. */
+    for (i=0; i<pjsua.buddy_cnt; ++i) {
+	pj_ansi_sprintf(line, "--add-buddy %.*s\n",
+			      (int)pjsua.buddies[i].slen,
+			      pjsua.buddies[i].ptr);
+	pj_strcat2(&cfg, line);
+    }
+
+
+    /* Write to file. */
+    fhnd = fopen(filename, "wt");
+    if (!fhnd) {
+	pj_pool_release(pool);
+	return pj_get_os_error();
+    }
+
+    fwrite(cfg.ptr, cfg.slen, 1, fhnd);
+    fclose(fhnd);
+
+    pj_pool_release(pool);
+    return PJ_SUCCESS;
+}
diff --git a/pjsip/src/pjsua/pjsua_reg.c b/pjsip/src/pjsua/pjsua_reg.c
index 0a76750d..972791b1 100644
--- a/pjsip/src/pjsua/pjsua_reg.c
+++ b/pjsip/src/pjsua/pjsua_reg.c
@@ -52,6 +52,10 @@ static void regc_cb(struct pjsip_regc_cbparam *param)
     } else {
 	PJ_LOG(4, (THIS_FILE, "SIP registration updated status=%d", param->code));
     }
+
+    pjsua.regc_last_code = param->code;
+
+    pjsua_ui_regc_on_state_changed(pjsua.regc_last_code);
 }