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Use strlen_zero function in chan_sip (bug #1545)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@2878 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1.0
Mark Spencer 22 years ago
parent 9c683b7423
commit d4c439c61d
1 changed files with 91 additions and 90 deletions
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181
channels/chan_sip.c
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@ -39,6 +39,7 @@
#include <asterisk/srv.h>
#include <asterisk/astdb.h>
#include <asterisk/causes.h>
#include <asterisk/utils.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/if.h>
@ -717,7 +718,7 @@ static int sip_sendtext(struct ast_channel *ast, char *text)
ast_verbose("Sending text %s on %s\n", text, ast->name);
if (!p)
return -1;
if (!text || !strlen(text))
if (!text || ast_strlen_zero(text))
return 0;
if (sip_debug_test_pvt(p))
ast_verbose("Really sending text %s on %s\n", text, ast->name);
@ -935,15 +936,15 @@ static int create_addr(struct sip_pvt *r, char *peer)
strncpy(r->peermd5secret, p->md5secret, sizeof(r->peermd5secret)-1);
strncpy(r->username, p->username, sizeof(r->username)-1);
strncpy(r->tohost, p->tohost, sizeof(r->tohost)-1);
if (!strlen(r->tohost)) {
if (ast_strlen_zero(r->tohost)) {
if (p->addr.sin_addr.s_addr)
snprintf(r->tohost, sizeof(r->tohost), inet_ntoa(p->addr.sin_addr));
else
snprintf(r->tohost, sizeof(r->tohost), inet_ntoa(p->defaddr.sin_addr));
}
if (strlen(p->fromdomain))
if (!ast_strlen_zero(p->fromdomain))
strncpy(r->fromdomain, p->fromdomain, sizeof(r->fromdomain)-1);
if (strlen(p->fromuser))
if (!ast_strlen_zero(p->fromuser))
strncpy(r->fromuser, p->fromuser, sizeof(r->fromuser)-1);
r->insecure = p->insecure;
r->canreinvite = p->canreinvite;
@ -1362,7 +1363,7 @@ static int sip_hangup(struct ast_channel *ast)
needdestroy = 1;
/* Start the process if it's not already started */
if (!p->alreadygone && strlen(p->initreq.data)) {
if (!p->alreadygone && !ast_strlen_zero(p->initreq.data)) {
if (needcancel) {
if (p->outgoing) {
transmit_request_with_auth(p, "CANCEL", p->ocseq, 1, 0);
@ -1624,11 +1625,11 @@ static struct ast_channel *sip_new(struct sip_pvt *i, int state, char *title)
tmp->callgroup = i->callgroup;
tmp->pickupgroup = i->pickupgroup;
tmp->restrictcid = i->restrictcid;
if (strlen(i->accountcode))
if (!ast_strlen_zero(i->accountcode))
strncpy(tmp->accountcode, i->accountcode, sizeof(tmp->accountcode)-1);
if (i->amaflags)
tmp->amaflags = i->amaflags;
if (strlen(i->language))
if (!ast_strlen_zero(i->language))
strncpy(tmp->language, i->language, sizeof(tmp->language)-1);
i->owner = tmp;
ast_mutex_lock(&usecnt_lock);
@ -1636,14 +1637,14 @@ static struct ast_channel *sip_new(struct sip_pvt *i, int state, char *title)
ast_mutex_unlock(&usecnt_lock);
strncpy(tmp->context, i->context, sizeof(tmp->context)-1);
strncpy(tmp->exten, i->exten, sizeof(tmp->exten)-1);
if (strlen(i->callerid))
if (!ast_strlen_zero(i->callerid))
tmp->callerid = strdup(i->callerid);
if (strlen(i->rdnis))
if (!ast_strlen_zero(i->rdnis))
tmp->rdnis = strdup(i->rdnis);
if (strlen(i->exten) && strcmp(i->exten, "s"))
if (!ast_strlen_zero(i->exten) && strcmp(i->exten, "s"))
tmp->dnid = strdup(i->exten);
tmp->priority = 1;
if (strlen(i->domain)) {
if (!ast_strlen_zero(i->domain)) {
pbx_builtin_setvar_helper(tmp, "SIPDOMAIN", i->domain);
}
ast_setstate(tmp, state);
@ -1921,7 +1922,7 @@ static struct sip_pvt *find_call(struct sip_request *req, struct sockaddr_in *si
}
if (!strlen(callid)) {
if (ast_strlen_zero(callid)) {
ast_log(LOG_WARNING, "Call missing call ID from '%s'\n", inet_ntoa(sin->sin_addr));
return NULL;
}
@ -1929,7 +1930,7 @@ static struct sip_pvt *find_call(struct sip_request *req, struct sockaddr_in *si
p = iflist;
while(p) {
if (!strcmp(p->callid, callid) &&
(!pedanticsipchecking || !tag || !strlen(p->theirtag) || !strcmp(p->theirtag, tag))) {
(!pedanticsipchecking || !tag || ast_strlen_zero(p->theirtag) || !strcmp(p->theirtag, tag))) {
/* Found the call */
ast_mutex_lock(&p->lock);
ast_mutex_unlock(&iflock);
@ -1965,7 +1966,7 @@ static int sip_register(char *value, int lineno)
*hostname = '\0';
hostname++;
}
if (!username || !strlen(username) || !hostname || !strlen(hostname)) {
if (!username || ast_strlen_zero(username) || !hostname || !strlen(hostname)) {
ast_log(LOG_WARNING, "Format for registration is user[:secret[:authuser]]@host[:port][/contact] at line %d", lineno);
return -1;
}
@ -1980,7 +1981,7 @@ static int sip_register(char *value, int lineno)
hostname = strsep(&stringp, "/");
if (hostname)
contact = strsep(&stringp, "/");
if (!contact || !strlen(contact))
if (!contact || ast_strlen_zero(contact))
contact = "s";
stringp=hostname;
hostname = strsep(&stringp, ":");
@ -2088,7 +2089,7 @@ static void parse(struct sip_request *req)
#if 0
printf("Header: %s (%d)\n", req->header[f], strlen(req->header[f]));
#endif
if (!strlen(req->header[f])) {
if (ast_strlen_zero(req->header[f])) {
/* Line by itself means we're now in content */
c++;
break;
@ -2105,7 +2106,7 @@ static void parse(struct sip_request *req)
c++;
}
/* Check for last header */
if (strlen(req->header[f]))
if (!ast_strlen_zero(req->header[f]))
f++;
req->headers = f;
/* Now we process any mime content */
@ -2130,7 +2131,7 @@ static void parse(struct sip_request *req)
c++;
}
/* Check for last line */
if (strlen(req->line[f]))
if (!ast_strlen_zero(req->line[f]))
f++;
req->lines = f;
if (*c)
@ -2164,7 +2165,7 @@ static int process_sdp(struct sip_pvt *p, struct sip_request *req)
}
m = get_sdp(req, "m");
c = get_sdp(req, "c");
if (!strlen(m) || !strlen(c)) {
if (ast_strlen_zero(m) || ast_strlen_zero(c)) {
ast_log(LOG_WARNING, "Insufficient information for SDP (m = '%s', c = '%s')\n", m, c);
return -1;
}
@ -2185,7 +2186,7 @@ static int process_sdp(struct sip_pvt *p, struct sip_request *req)
/* Scan through the RTP payload types specified in a "m=" line: */
ast_rtp_pt_clear(p->rtp);
codecs = m + len;
while(strlen(codecs)) {
while(!ast_strlen_zero(codecs)) {
if (sscanf(codecs, "%d%n", &codec, &len) != 1) {
ast_log(LOG_WARNING, "Error in codec string '%s'\n", codecs);
return -1;
@ -2205,7 +2206,7 @@ static int process_sdp(struct sip_pvt *p, struct sip_request *req)
vportno = x;
/* Scan through the RTP payload types specified in a "m=" line: */
codecs = m + len;
while(strlen(codecs)) {
while(!ast_strlen_zero(codecs)) {
if (sscanf(codecs, "%d%n", &codec, &len) != 1) {
ast_log(LOG_WARNING, "Error in codec string '%s'\n", codecs);
return -1;
@ -2365,7 +2366,7 @@ static int copy_header(struct sip_request *req, struct sip_request *orig, char *
{
char *tmp;
tmp = get_header(orig, field);
if (strlen(tmp)) {
if (!ast_strlen_zero(tmp)) {
/* Add what we're responding to */
return add_header(req, field, tmp);
}
@ -2380,7 +2381,7 @@ static int copy_all_header(struct sip_request *req, struct sip_request *orig, ch
int copied = 0;
for (;;) {
tmp = __get_header(orig, field, &start);
if (strlen(tmp)) {
if (!ast_strlen_zero(tmp)) {
/* Add what we're responding to */
add_header(req, field, tmp);
copied++;
@ -2398,7 +2399,7 @@ static int copy_via_headers(struct sip_pvt *p, struct sip_request *req, struct s
char new[256];
for (;;) {
tmp = __get_header(orig, field, &start);
if (strlen(tmp)) {
if (!ast_strlen_zero(tmp)) {
if (!copied && p->nat) {
#ifdef THE_SIP_AUTHORS_CAN_SUCK_MY_GONADS
/* SLD: FIXME: Nice try, but the received= should not have a port */
@ -2557,7 +2558,7 @@ static int respprep(struct sip_request *resp, struct sip_pvt *p, char *msg, stru
if (!strstr(ot, "tag=")) {
/* Add the proper tag if we don't have it already. If they have specified
their tag, use it. Otherwise, use our own tag */
if (strlen(p->theirtag) && p->outgoing)
if (!ast_strlen_zero(p->theirtag) && p->outgoing)
snprintf(newto, sizeof(newto), "%s;tag=%s", ot, p->theirtag);
else if (p->tag && !p->outgoing)
snprintf(newto, sizeof(newto), "%s;tag=as%08x", ot, p->tag);
@ -2608,7 +2609,7 @@ static int reqprep(struct sip_request *req, struct sip_pvt *p, char *msg, int se
snprintf(p->via, sizeof(p->via), "SIP/2.0/UDP %s:%d;branch=z9hG4bK%08x", inet_ntoa(p->ourip), ourport, p->branch);
}
if (strlen(p->uri)) {
if (!ast_strlen_zero(p->uri)) {
c = p->uri;
} else {
if (p->outgoing)
@ -2646,7 +2647,7 @@ static int reqprep(struct sip_request *req, struct sip_pvt *p, char *msg, int se
if (!strstr(ot, "tag=") && strcasecmp(msg, "CANCEL")) {
/* Add the proper tag if we don't have it already. If they have specified
their tag, use it. Otherwise, use our own tag */
if (p->outgoing && strlen(p->theirtag))
if (p->outgoing && !ast_strlen_zero(p->theirtag))
snprintf(newto, sizeof(newto), "%s;tag=%s", ot, p->theirtag);
else if (!p->outgoing)
snprintf(newto, sizeof(newto), "%s;tag=as%08x", ot, p->tag);
@ -3067,7 +3068,7 @@ static void extract_uri(struct sip_pvt *p, struct sip_request *req)
n = strchr(c, ';');
if (n)
*n = '\0';
if (c && strlen(c))
if (c && !ast_strlen_zero(c))
strncpy(p->uri, c, sizeof(p->uri) - 1);
}
@ -3104,18 +3105,18 @@ static void initreqprep(struct sip_request *req, struct sip_pvt *p, char *cmd, c
l = CALLERID_UNKNOWN;
n = l;
}
if (!n || !strlen(n))
if (!n || ast_strlen_zero(n))
n = l;
/* Allow user to be overridden */
if (strlen(p->fromuser))
if (!ast_strlen_zero(p->fromuser))
l = p->fromuser;
if ((ourport != 5060) && !strlen(p->fromdomain))
if ((ourport != 5060) && ast_strlen_zero(p->fromdomain))
snprintf(from, sizeof(from), "\"%s\" <sip:%s@%s:%d>;tag=as%08x", n, l, strlen(p->fromdomain) ? p->fromdomain : inet_ntoa(p->ourip), ourport, p->tag);
else
snprintf(from, sizeof(from), "\"%s\" <sip:%s@%s>;tag=as%08x", n, l, strlen(p->fromdomain) ? p->fromdomain : inet_ntoa(p->ourip), p->tag);
if (strlen(p->username)) {
if (!ast_strlen_zero(p->username)) {
if (ntohs(p->sa.sin_port) != DEFAULT_SIP_PORT) {
snprintf(invite, sizeof(invite), "sip:%s@%s:%d",p->username, p->tohost, ntohs(p->sa.sin_port));
} else {
@ -3169,9 +3170,9 @@ static int transmit_invite(struct sip_pvt *p, char *cmd, int sdp, char *auth, ch
add_header(&req, authheader, auth);
append_date(&req);
if (!strcasecmp(cmd, "REFER")) {
if (strlen(p->refer_to))
if (!ast_strlen_zero(p->refer_to))
add_header(&req, "Refer-To", p->refer_to);
if (strlen(p->referred_by))
if (!ast_strlen_zero(p->referred_by))
add_header(&req, "Referred-By", p->referred_by);
}
@ -3399,7 +3400,7 @@ static int transmit_register(struct sip_registry *r, char *cmd, char *auth, char
p->registry=r;
strncpy(p->peersecret, r->secret, sizeof(p->peersecret)-1);
strncpy(p->peermd5secret, r->md5secret, sizeof(p->peermd5secret)-1);
if (strlen(r->authuser)) {
if (!ast_strlen_zero(r->authuser)) {
strncpy(p->peername, r->authuser, sizeof(p->peername)-1);
strncpy(p->authname, r->authuser, sizeof(p->authname)-1);
} else {
@ -3518,7 +3519,7 @@ static int transmit_refer(struct sip_pvt *p, char *dest)
reqprep(&req, p, "REFER", 0, 1);
add_header(&req, "Refer-To", referto);
if (strlen(p->our_contact))
if (!ast_strlen_zero(p->our_contact))
add_header(&req, "Referred-By", p->our_contact);
add_blank_header(&req);
return send_request(p, &req, 1, p->ocseq);
@ -3625,7 +3626,7 @@ static int parse_contact(struct sip_pvt *pvt, struct sip_peer *p, struct sip_req
struct hostent *hp;
struct ast_hostent ahp;
struct sockaddr_in oldsin;
if (!strlen(expires)) {
if (ast_strlen_zero(expires)) {
expires = strstr(get_header(req, "Contact"), "expires=");
if (expires) {
if (sscanf(expires + 8, "%d;", &expiry) != 1)
@ -3804,7 +3805,7 @@ static void build_route(struct sip_pvt *p, struct sip_request *req, int backward
/* 2nd append the Contact: if there is one */
/* Can be multiple Contact headers, comma separated values - we just take the first */
contact = get_header(req, "Contact");
if (strlen(contact)) {
if (!ast_strlen_zero(contact)) {
ast_log(LOG_DEBUG, "build_route: Contact hop: %s\n", contact);
/* Look for <: delimited address */
c = strchr(contact, '<');
@ -3854,12 +3855,12 @@ static int check_auth(struct sip_pvt *p, struct sip_request *req, char *randdata
{
int res = -1;
/* Always OK if no secret */
if (!strlen(secret) && !strlen(md5secret))
if (ast_strlen_zero(secret) && ast_strlen_zero(md5secret))
return 0;
if (ignore && strlen(randdata) && !strlen(get_header(req, "Proxy-Authorization"))) {
if (ignore && !ast_strlen_zero(randdata) && ast_strlen_zero(get_header(req, "Proxy-Authorization"))) {
/* This is a retransmitted invite/register/etc, don't reconstruct authentication
information */
if (strlen(randdata)) {
if (!ast_strlen_zero(randdata)) {
if (!reliable) {
/* Resend message if this was NOT a reliable delivery. Otherwise the
retransmission should get it */
@ -3869,7 +3870,7 @@ static int check_auth(struct sip_pvt *p, struct sip_request *req, char *randdata
}
res = 1;
}
} else if (!strlen(randdata) || !strlen(get_header(req, "Proxy-Authorization"))) {
} else if (ast_strlen_zero(randdata) || ast_strlen_zero(get_header(req, "Proxy-Authorization"))) {
snprintf(randdata, randlen, "%08x", rand());
transmit_response_with_auth(p, "407 Proxy Authentication Required", req, randdata, reliable);
/* Schedule auto destroy in 15 seconds */
@ -3929,11 +3930,11 @@ static int check_auth(struct sip_pvt *p, struct sip_request *req, char *randdata
c++;
}
snprintf(a1, sizeof(a1), "%s:%s:%s", username, "asterisk", secret);
if(strlen(resp_uri))
if(!ast_strlen_zero(resp_uri))
snprintf(a2, sizeof(a2), "%s:%s", method, resp_uri);
else
snprintf(a2, sizeof(a2), "%s:%s", method, uri);
if (strlen(md5secret))
if (!ast_strlen_zero(md5secret))
snprintf(a1_hash, sizeof(a1_hash), "%s", md5secret);
else
md5_hash(a1_hash, a1);
@ -4073,7 +4074,7 @@ static int get_rdnis(struct sip_pvt *p, struct sip_request *oreq)
if (!req)
req = &p->initreq;
strncpy(tmp, get_header(req, "Diversion"), sizeof(tmp) - 1);
if (!strlen(tmp))
if (ast_strlen_zero(tmp))
return 0;
c = ditch_braces(tmp);
if (strncmp(c, "sip:", 4)) {
@ -4111,7 +4112,7 @@ static int get_destination(struct sip_pvt *p, struct sip_request *oreq)
return -1;
}
c += 4;
if (strlen(fr)) {
if (!ast_strlen_zero(fr)) {
if (strncmp(fr, "sip:", 4)) {
ast_log(LOG_WARNING, "Huh? Not a SIP header (%s)?\n", fr);
return -1;
@ -4238,7 +4239,7 @@ static int get_refer_info(struct sip_pvt *p, struct sip_request *oreq)
ast_verbose("Looking for %s in %s\n", c, p->context);
ast_verbose("Looking for %s in %s\n", c2, p->context);
}
if (strlen(tmp5)) {
if (!ast_strlen_zero(tmp5)) {
/* This is a supervised transfer */
ast_log(LOG_DEBUG,"Assigning Replace-Call-ID Info %s to REPLACE_CALL_ID\n",tmp5);
@ -4415,7 +4416,7 @@ static int check_user(struct sip_pvt *p, struct sip_request *req, char *cmd, cha
memset(calleridname,0,sizeof(calleridname));
get_calleridname(from,calleridname);
of = ditch_braces(from);
if (!strlen(p->exten)) {
if (ast_strlen_zero(p->exten)) {
t = uri;
if (!strncmp(t, "sip:", 4))
t+= 4;
@ -4423,7 +4424,7 @@ static int check_user(struct sip_pvt *p, struct sip_request *req, char *cmd, cha
t = strchr(p->exten, '@');
if (t)
*t = '\0';
if (!strlen(p->our_contact))
if (ast_strlen_zero(p->our_contact))
build_contact(p);
}
if (strncmp(of, "sip:", 4)) {
@ -4439,7 +4440,7 @@ static int check_user(struct sip_pvt *p, struct sip_request *req, char *cmd, cha
sprintf(p->callerid,"\"%s\" <%s>",calleridname,of);
else
strncpy(p->callerid, of, sizeof(p->callerid) - 1);
if (!strlen(of))
if (ast_strlen_zero(of))
return 0;
ast_mutex_lock(&userl.lock);
user = find_user(of);
@ -4455,9 +4456,9 @@ static int check_user(struct sip_pvt *p, struct sip_request *req, char *cmd, cha
}
if (!(res = check_auth(p, req, p->randdata, sizeof(p->randdata), user->name, user->secret, user->md5secret, cmd, uri, reliable, ignore))) {
sip_cancel_destroy(p);
if (strlen(user->context))
if (!ast_strlen_zero(user->context))
strncpy(p->context, user->context, sizeof(p->context) - 1);
if (strlen(user->callerid) && strlen(p->callerid))
if (!ast_strlen_zero(user->callerid) && !ast_strlen_zero(p->callerid))
strncpy(p->callerid, user->callerid, sizeof(p->callerid) - 1);
strncpy(p->username, user->name, sizeof(p->username) - 1);
strncpy(p->peersecret, user->secret, sizeof(p->peersecret) - 1);
@ -4504,11 +4505,11 @@ static int check_user(struct sip_pvt *p, struct sip_request *req, char *cmd, cha
p->canreinvite = peer->canreinvite;
strncpy(p->peername, peer->name, sizeof(p->peername) - 1);
strncpy(p->authname, peer->name, sizeof(p->authname) - 1);
if (strlen(peer->username)) {
if (!ast_strlen_zero(peer->username)) {
strncpy(p->username, peer->username, sizeof(p->username) - 1);
strncpy(p->authname, peer->username, sizeof(p->authname) - 1);
}
if (strlen(peer->context))
if (!ast_strlen_zero(peer->context))
strncpy(p->context, peer->context, sizeof(p->context) - 1);
strncpy(p->peersecret, peer->secret, sizeof(p->peersecret) - 1);
strncpy(p->peermd5secret, peer->md5secret, sizeof(p->peermd5secret) - 1);
@ -4645,7 +4646,7 @@ static int sip_show_peers(int fd, int argc, char *argv[])
int print_line = -1;
char srch[2000];
strncpy(nm, inet_ntoa(peer->mask), sizeof(nm)-1);
if (strlen(peer->username))
if (!ast_strlen_zero(peer->username))
snprintf(name, sizeof(name), "%s/%s", peer->name, peer->username);
else
strncpy(name, peer->name, sizeof(name) - 1);
@ -4834,7 +4835,7 @@ static void receive_info(struct sip_pvt *p, struct sip_request *req)
struct ast_frame f;
char *c;
/* Try getting the "signal=" part */
if (strlen(c = get_sdp(req, "Signal")) || strlen(c = get_sdp(req, "d"))) {
if (!ast_strlen_zero(c = get_sdp(req, "Signal")) || !ast_strlen_zero(c = get_sdp(req, "d"))) {
strncpy(buf, c, sizeof(buf) - 1);
} else if (get_msg_text(buf, sizeof(buf), req)) {
/* Normal INFO method */
@ -4843,7 +4844,7 @@ static void receive_info(struct sip_pvt *p, struct sip_request *req)
}
if (p->owner) {
if (strlen(buf)) {
if (!ast_strlen_zero(buf)) {
if (sip_debug_test_pvt(p))
ast_verbose("DTMF received: '%c'\n", buf[0]);
if (buf[0] == '*')
@ -4995,7 +4996,7 @@ static int reply_digest(struct sip_pvt *p, struct sip_request *req, char *header
strncpy(tmp, get_header(req, header),sizeof(tmp) - 1);
if (!strlen(tmp))
if (ast_strlen_zero(tmp))
return -1;
c = tmp;
c+=strlen("Digest ");
@ -5087,9 +5088,9 @@ static int build_reply_digest(struct sip_pvt *p, char* orig_header, char* digest
char uri[256] = "";
char cnonce[80];
if (strlen(p->domain))
if (!ast_strlen_zero(p->domain))
strncpy(uri, p->domain, sizeof(uri) - 1);
else if (strlen(p->uri))
else if (!ast_strlen_zero(p->uri))
strncpy(uri, p->uri, sizeof(uri) - 1);
else
snprintf(uri, sizeof(uri), "sip:%s@%s",p->username, inet_ntoa(p->sa.sin_addr));
@ -5098,20 +5099,20 @@ static int build_reply_digest(struct sip_pvt *p, char* orig_header, char* digest
snprintf(a1,sizeof(a1),"%s:%s:%s",p->authname,p->realm,p->peersecret);
snprintf(a2,sizeof(a2),"%s:%s",orig_header,uri);
if (strlen(p->peermd5secret))
if (!ast_strlen_zero(p->peermd5secret))
strncpy(a1_hash, p->peermd5secret, sizeof(a1_hash) - 1);
else
md5_hash(a1_hash,a1);
md5_hash(a2_hash,a2);
/* XXX We hard code the nonce-number to 1... What are the odds? Are we seriously going to keep
track of every nonce we've seen? Also we hard code to "auth"... XXX */
if (strlen(p->qop))
if (!ast_strlen_zero(p->qop))
snprintf(resp,sizeof(resp),"%s:%s:%s:%s:%s:%s",a1_hash,p->nonce, "00000001", cnonce, "auth", a2_hash);
else
snprintf(resp,sizeof(resp),"%s:%s:%s",a1_hash,p->nonce,a2_hash);
md5_hash(resp_hash,resp);
/* XXX We hard code our qop to "auth" for now. XXX */
if (strlen(p->qop))
if (!ast_strlen_zero(p->qop))
snprintf(digest,digest_len,"Digest username=\"%s\", realm=\"%s\", algorithm=\"MD5\", uri=\"%s\", nonce=\"%s\", response=\"%s\", opaque=\"%s\", qop=\"%s\", cnonce=\"%s\", nc=%s",p->authname,p->realm,uri,p->nonce,resp_hash, p->opaque, "auth", cnonce, "00000001");
else
snprintf(digest,digest_len,"Digest username=\"%s\", realm=\"%s\", algorithm=\"MD5\", uri=\"%s\", nonce=\"%s\", response=\"%s\", opaque=\"%s\"",p->authname,p->realm,uri,p->nonce,resp_hash, p->opaque);
@ -5300,7 +5301,7 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
break;
case 183:
if (!strcasecmp(msg, "INVITE")) {
if (strlen(get_header(req, "Content-Type")))
if (!ast_strlen_zero(get_header(req, "Content-Type")))
process_sdp(p, req);
if (p->owner) {
/* Queue a progress frame */
@ -5327,7 +5328,7 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
}
}
} else if (!strcasecmp(msg, "INVITE")) {
if (strlen(get_header(req, "Content-Type")))
if (!ast_strlen_zero(get_header(req, "Content-Type")))
process_sdp(p, req);
/* Save Record-Route for any later requests we make on this dialogue */
build_route(p, req, 1);
@ -5371,14 +5372,14 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
/* according to section 6.13 of RFC, contact headers override
expires headers, so check those first */
expires = 0;
if (strlen(get_header(req, "Contact")) != 0) {
if (!ast_strlen_zero(get_header(req, "Contact"))) {
char *contact = NULL;
char *tmptmp = NULL;
int start = 0;
for(;;) {
contact = __get_header(req, "Contact", &start);
/* this loop ensures we get a contact header about our register request */
if(strlen(contact)) {
if(!ast_strlen_zero(contact)) {
if(strstr(contact, p->our_contact))
break;
} else
@ -5435,7 +5436,7 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
}
}
} else if (!strcasecmp(msg, "BYE") || !strcasecmp(msg, "REFER")) {
if (!strlen(p->authname))
if (ast_strlen_zero(p->authname))
ast_log(LOG_WARNING, "Asked to authenticate %s, to %s:%d but we have no matching peer!\n",
msg, inet_ntoa(p->recv.sin_addr), ntohs(p->recv.sin_port));
if ((p->authtries > 1) || do_proxy_auth(p, req, "Proxy-Authenticate", "Proxy-Authorization", msg, 0)) {
@ -5528,7 +5529,7 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
break;
case 407:
if (!strcasecmp(msg, "BYE") || !strcasecmp(msg, "REFER")) {
if (!strlen(p->authname))
if (ast_strlen_zero(p->authname))
ast_log(LOG_WARNING, "Asked to authenticate %s, to %s:%d but we have no matching peer!\n",
msg, inet_ntoa(p->recv.sin_addr), ntohs(p->recv.sin_port));
if ((p->authtries > 1) || do_proxy_auth(p, req, "Proxy-Authenticate", "Proxy-Authorization", msg, 0)) {
@ -5600,7 +5601,7 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
cseq = get_header(req, "Cseq");
cmd = req->header[0];
/* Must have Cseq */
if (!strlen(cmd) || !strlen(cseq))
if (ast_strlen_zero(cmd) || ast_strlen_zero(cseq))
return -1;
if (sscanf(cseq, "%i%n", &seqno, &len) != 1) {
ast_log(LOG_DEBUG, "No seqno in '%s'\n", cmd);
@ -5626,7 +5627,7 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
respond appropriately */
ignore=1;
}
if (!strlen(p->theirtag)) {
if (ast_strlen_zero(p->theirtag)) {
from = get_header(req, "From");
from = strstr(from, "tag=");
if (from) {
@ -5663,7 +5664,7 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
res = get_destination(p, req);
build_contact(p);
/* XXX Should we authenticate OPTIONS? XXX */
if (!strlen(p->context))
if (ast_strlen_zero(p->context))
strncpy(p->context, context, sizeof(p->context) - 1);
if (res < 0)
transmit_response_with_allow(p, "404 Not Found", req);
@ -5693,7 +5694,7 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
p->outgoing = 0;
copy_request(&p->initreq, req);
check_via(p, req);
if (strlen(get_header(req, "Content-Type"))) {
if (!ast_strlen_zero(get_header(req, "Content-Type"))) {
if (process_sdp(p, req))
return -1;
} else {
@ -5716,7 +5717,7 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
return 0;
}
/* Initialize the context if it hasn't been already */
if (!strlen(p->context))
if (ast_strlen_zero(p->context))
strncpy(p->context, context, sizeof(p->context) - 1);
/* Check number of concurrent calls -vs- incoming limit HERE */
ast_log(LOG_DEBUG, "Check for res for %s\n", p->username);
@ -5745,12 +5746,12 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
p->needdestroy = 1;
} else {
/* If no extension was specified, use the s one */
if (!strlen(p->exten))
if (ast_strlen_zero(p->exten))
strncpy(p->exten, "s", sizeof(p->exten) - 1);
/* Initialize tag */
p->tag = rand();
/* First invitation */
c = sip_new(p, AST_STATE_DOWN, strlen(p->username) ? p->username : NULL);
c = sip_new(p, AST_STATE_DOWN, ast_strlen_zero(p->username) ? NULL : p->username );
*recount = 1;
/* Save Record-Route for any later requests we make on this dialogue */
build_route(p, req, 0);
@ -5822,7 +5823,7 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
}
} else if (!strcasecmp(cmd, "REFER")) {
ast_log(LOG_DEBUG, "We found a REFER!\n");
if (!strlen(p->context))
if (ast_strlen_zero(p->context))
strncpy(p->context, context, sizeof(p->context) - 1);
res = get_refer_info(p, req);
if (res < 0)
@ -5890,10 +5891,10 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
/* Immediately stop VRTP */
ast_rtp_stop(p->vrtp);
}
if (strlen(get_header(req, "Also"))) {
if (!ast_strlen_zero(get_header(req, "Also"))) {
ast_log(LOG_NOTICE, "Client '%s' using deprecated BYE/Also transfer method. Ask vendor to support REFER instead\n",
inet_ntoa(p->recv.sin_addr));
if (!strlen(p->context))
if (ast_strlen_zero(p->context))
strncpy(p->context, context, sizeof(p->context) - 1);
res = get_also_info(p, req);
if (!res) {
@ -5946,7 +5947,7 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
return 0;
}
/* Initialize the context if it hasn't been already */
if (!strlen(p->context))
if (ast_strlen_zero(p->context))
strncpy(p->context, context, sizeof(p->context) - 1);
/* Get destination right away */
gotdest = get_destination(p, NULL);
@ -6013,11 +6014,11 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
supposed to retransmit responses until we get an ack?
Make sure this is on a valid call */
__sip_ack(p, seqno, FLAG_RESPONSE);
if (strlen(get_header(req, "Content-Type"))) {
if (!ast_strlen_zero(get_header(req, "Content-Type"))) {
if (process_sdp(p, req))
return -1;
}
if (!p->lastinvite && !strlen(p->randdata))
if (!p->lastinvite && ast_strlen_zero(p->randdata))
p->needdestroy = 1;
} else if (!strcasecmp(cmd, "SIP/2.0")) {
extract_uri(p, req);
@ -6209,7 +6210,7 @@ restartsearch:
fastrestart = 0;
curpeernum = 0;
while(peer) {
if ((curpeernum > lastpeernum) && strlen(peer->mailbox) && ((t - peer->lastmsgcheck) > 10)) {
if ((curpeernum > lastpeernum) && !ast_strlen_zero(peer->mailbox) && ((t - peer->lastmsgcheck) > 10)) {
sip_send_mwi_to_peer(peer);
fastrestart = 1;
lastpeernum = curpeernum;
@ -6302,7 +6303,7 @@ static int sip_poke_peer(struct sip_peer *peer)
}
memcpy(&p->sa, &peer->addr, sizeof(p->sa));
memcpy(&p->recv, &peer->addr, sizeof(p->sa));
if (strlen(p->tohost))
if (!ast_strlen_zero(p->tohost))
strncpy(p->tohost, peer->tohost, sizeof(p->tohost) - 1);
else
snprintf(p->tohost, sizeof(p->tohost), "%s", inet_ntoa(peer->addr.sin_addr));
@ -6420,7 +6421,7 @@ static struct ast_channel *sip_request(char *type, int format, void *data)
sip_destroy(p);
return NULL;
}
if (!strlen(p->peername) && ext)
if (ast_strlen_zero(p->peername) && ext)
strncpy(p->peername, ext, sizeof(p->peername) - 1);
/* Recalculate our side, and recalculate Call ID */
if (ast_sip_ouraddrfor(&p->sa.sin_addr,&p->ourip))
@ -6541,10 +6542,10 @@ static struct sip_user *build_user(char *name, struct ast_variable *v)
v = v->next;
}
}
if (!strlen(user->methods)) {
if (strlen(user->secret))
if (ast_strlen_zero(user->methods)) {
if (!ast_strlen_zero(user->secret))
strncpy(user->methods, "md5,plaintext", sizeof(user->methods) - 1);
else if (strlen(user->md5secret))
else if (!ast_strlen_zero(user->md5secret))
strncpy(user->methods, "md5", sizeof(user->methods) - 1);
}
if (oldha)
@ -6740,7 +6741,7 @@ static struct sip_peer *build_peer(char *name, struct ast_variable *v)
*/
v=v->next;
}
if (!strlen(peer->methods))
if (ast_strlen_zero(peer->methods))
strcpy(peer->methods, "md5,plaintext");
if (!found && peer->dynamic)
reg_source_db(peer);
@ -7004,7 +7005,7 @@ static int reload_config(void)
ast_destroy(cfg);
#ifdef MYSQL_FRIENDS
/* Connect to db if appropriate */
if (!mysql && strlen(mydbname)) {
if (!mysql && !ast_strlen_zero(mydbname)) {
mysql = mysql_init(NULL);
if (!mysql_real_connect(mysql, mydbhost[0] ? mydbhost : NULL, mydbuser, mydbpass, mydbname, 0, NULL, 0)) {
memset(mydbpass, '*', strlen(mydbpass));

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