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Minor cleanup in chan_sip get_msg_text() function.

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In r116240, get_msg_text() got an extra parameter to fix the unwanted
addition of trailing newlines to SIP MESSAGE bodies. This caused all
linefeeds to be trimmed, which isn't right either. This is a stop-gap;
the right fix is to return the original SIP request body.

Review: https://reviewboard.asterisk.org/r/1586
Reviewed by: Matt Jordan


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@346147 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Walter Doekes
2011-11-23 20:15:00 +00:00
parent 38e0ec57ee
commit 546e7517c5
1 changed files with 32 additions and 17 deletions
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49
channels/chan_sip.c
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@@ -1477,7 +1477,7 @@ static void check_via(struct sip_pvt *p, struct sip_request *req);
static int get_rpid(struct sip_pvt *p, struct sip_request *oreq);
static int get_rdnis(struct sip_pvt *p, struct sip_request *oreq, char **name, char **number, int *reason);
static enum sip_get_dest_result get_destination(struct sip_pvt *p, struct sip_request *oreq, int *cc_recall_core_id);
static int get_msg_text(char *buf, int len, struct sip_request *req, int addnewline);
static int get_msg_text(char *buf, int len, struct sip_request *req);
static int transmit_state_notify(struct sip_pvt *p, int state, int full, int timeout);
static void update_connectedline(struct sip_pvt *p, const void *data, size_t datalen);
static void update_redirecting(struct sip_pvt *p, const void *data, size_t datalen);
@@ -15986,25 +15986,32 @@ static int check_user(struct sip_pvt *p, struct sip_request *req, int sipmethod,
return check_user_full(p, req, sipmethod, uri, reliable, addr, NULL);
}
/*! \brief Get text out of a SIP MESSAGE packet */
static int get_msg_text(char *buf, int len, struct sip_request *req, int addnewline)
/*! \brief Get message body from a SIP request
* \param buf Destination buffer
* \param len Destination buffer size
* \param req The SIP request
*
* When parsing the request originally, the lines are split by LF or CRLF.
* This function adds a single LF after every line.
*/
static int get_msg_text(char *buf, int len, struct sip_request *req)
{
int x;
int y;
int linelen;
buf[0] = '\0';
/*XXX isn't strlen(buf) going to always be 0? */
y = len - strlen(buf) - 5;
if (y < 0)
y = 0;
for (x = 0; x < req->lines; x++) {
--len; /* reserve strncat null */
for (x = 0; len && x < req->lines; ++x) {
const char *line = REQ_OFFSET_TO_STR(req, line[x]);
strncat(buf, line, y); /* safe */
y -= strlen(line) + 1;
if (y < 0)
y = 0;
if (y != 0 && addnewline)
strncat(buf, line, len); /* safe */
linelen = strlen(buf);
buf += linelen;
len -= linelen;
if (len) {
strcat(buf, "\n"); /* safe */
++buf;
--len;
}
}
return 0;
}
@@ -16016,6 +16023,7 @@ static int get_msg_text(char *buf, int len, struct sip_request *req, int addnewl
static void receive_message(struct sip_pvt *p, struct sip_request *req)
{
char buf[1400];
char *bufp;
struct ast_frame f;
const char *content_type = get_header(req, "Content-Type");
@@ -16026,7 +16034,7 @@ static void receive_message(struct sip_pvt *p, struct sip_request *req)
return;
}
if (get_msg_text(buf, sizeof(buf), req, FALSE)) {
if (get_msg_text(buf, sizeof(buf), req)) {
ast_log(LOG_WARNING, "Unable to retrieve text from %s\n", p->callid);
transmit_response(p, "202 Accepted", req);
if (!p->owner)
@@ -16034,6 +16042,13 @@ static void receive_message(struct sip_pvt *p, struct sip_request *req)
return;
}
/* Strip trailing line feeds from message body. (get_msg_text may add
* a trailing linefeed and we don't need any at the end) */
bufp = buf + strlen(buf);
while (--bufp >= buf && *bufp == '\n') {
*bufp = '\0';
}
if (p->owner) {
if (sip_debug_test_pvt(p))
ast_verbose("SIP Text message received: '%s'\n", buf);
@@ -18543,7 +18558,7 @@ static void handle_request_info(struct sip_pvt *p, struct sip_request *req)
return;
}
get_msg_text(buf, sizeof(buf), req, TRUE);
get_msg_text(buf, sizeof(buf), req);
duration = 100; /* 100 ms */
if (ast_strlen_zero(buf)) {
@@ -21493,7 +21508,7 @@ static int handle_request_notify(struct sip_pvt *p, struct sip_request *req, str
}
/* Get the text of the attachment */
if (get_msg_text(buf, sizeof(buf), req, TRUE)) {
if (get_msg_text(buf, sizeof(buf), req)) {
ast_log(LOG_WARNING, "Unable to retrieve attachment from NOTIFY %s\n", p->callid);
transmit_response(p, "400 Bad request", req);
sip_scheddestroy(p, DEFAULT_TRANS_TIMEOUT);