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simplify determine_firstline_parts

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@26919 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Luigi Rizzo
2006-05-11 14:55:34 +00:00
parent f3e6fa56ab
commit 87e909476d
1 changed files with 21 additions and 30 deletions
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channels/chan_sip.c
+21 -30
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@@ -4970,51 +4970,42 @@ static int transmit_response_with_sdp(struct sip_pvt *p, char *msg, struct sip_r
}
/*! \brief Parse first line of incoming SIP request */
static int determine_firstline_parts( struct sip_request *req )
static int determine_firstline_parts(struct sip_request *req)
{
char *e, *cmd;
int len;
cmd = ast_skip_blanks(req->header[0]);
if (!*cmd)
char *e = ast_skip_blanks(req->header[0]); /* there shouldn't be any */
if (!*e)
return -1;
req->rlPart1 = cmd;
e = ast_skip_nonblanks(cmd);
/* Get the command */
req->rlPart1 = e; /* method or protocol */
e = ast_skip_nonblanks(e);
if (*e)
*e++ = '\0';
/* Get URI or status code */
e = ast_skip_blanks(e);
if ( !*e )
return -1;
ast_trim_blanks(e);
if ( !strcasecmp(cmd, "SIP/2.0") ) {
/* We have a response */
req->rlPart2 = e;
len = strlen( req->rlPart2 );
if ( len < 2 ) {
if (!strcasecmp(req->rlPart1, "SIP/2.0") ) { /* We have a response */
if (strlen(e) < 3) /* status code is 3 digits */
return -1;
}
ast_trim_blanks(e);
} else {
/* We have a request */
if ( *e == '<' ) {
req->rlPart2 = e;
} else { /* We have a request */
if ( *e == '<' ) { /* XXX the spec says it must not be in <> ! */
ast_log(LOG_WARNING, "bogus uri in <> %s\n", e);
e++;
if ( !*e ) {
if (!*e)
return -1;
}
}
req->rlPart2 = e; /* URI */
if ( ( e= strrchr( req->rlPart2, 'S' ) ) == NULL ) {
e = ast_skip_nonblanks(e);
if (*e)
*e++ = '\0';
e = ast_skip_blanks(e);
if (strcasecmp(e, "SIP/2.0") ) {
ast_log(LOG_WARNING, "Bad request protocol %s\n", e);
return -1;
}
/* XXX maybe trim_blanks() ? */
while( isspace( *(--e) ) )
;
if ( *e == '>' ) {
*e = '\0';
} else {
*(++e)= '\0';
}
}
return 1;
}