static int w_process_maxfwd_header(struct sip_msg* msg, char* str1,char* str2)
{
int val;
str mf_value;
val=is_maxfwd_present(msg, &mf_value);
switch (val) {
case -1:
add_maxfwd_header( msg, (unsigned int)(unsigned long)str1 );
break;
case -2:
break;
case 0:
return -1;
default:
if (max_limit && val>max_limit){
DBG("DBG:maxfwd:process_maxfwd_header: "
"value %d decreased to %d\n", val, max_limit);
val = max_limit+1;
}
if ( decrement_maxfwd(msg, val, &mf_value)!=1 )
LOG( L_ERR,"ERROR:maxfwd:process_maxfwd_header: "
"decrement failed!\n");
}
return 1;
}
static int w_process_maxfwd_header(struct sip_msg* msg, char* str1,char* str2)
{
int val;
str mf_value;
val=is_maxfwd_present(msg, &mf_value);
switch (val) {
/* header not found */
case -1:
if (add_maxfwd_header( msg, (unsigned int)(unsigned long)str1)!=0)
goto error;
return 2;
/* error */
case -2:
goto error;
/* found */
case 0:
return -1;
default:
if (val>max_limit){
LM_DBG("value %d decreased to %d\n", val, max_limit);
val = max_limit+1;
}
if ( decrement_maxfwd(msg, val, &mf_value)!=0 ) {
LM_ERR("decrement failed!\n");
goto error;
}
}
return 1;
error:
return -2;
}
/* check if the current Max Forwards value is below a certain threshold */
static int w_process_maxfwd_lowlimit(struct sip_msg* msg, char* str1,char* str2)
{
int val, lowlimit;
str mf_value;
val=is_maxfwd_present(msg, &mf_value);
lowlimit = (unsigned int) (unsigned long) str1;
DBG("maxfwd: lowlimit=%d current=%d\n", lowlimit, val);
if ((val >= 0) && (val < lowlimit))
return -1; /* limit reached */
else
return 1;
}
static int is_maxfwd_lt(struct sip_msg *msg, char *slimit, char *foo)
{
str mf_value;
int limit;
int val;
limit = (int)(long)slimit;
val = is_maxfwd_present( msg, &mf_value);
LM_DBG("value = %d \n",val);
if ( val<0 ) {
/* error or not found */
return val-1;
} else if ( val>=limit ) {
/* greater or equal than/to limit */
return -1;
}
return 1;
}