Here is the definition for cmp_str(), for example:

static int cmp_str_f(struct sip_msg *msg, char *str1, char *str2 )

{ str s1; str s2; int ret;

if(fixup_get_svalue(msg, (gparam_p)str1, &s1)!=0)
{
    LM_ERR("cannot get first parameter\n");
    return -8;
}
if(fixup_get_svalue(msg, (gparam_p)str2, &s2)!=0)
{
    LM_ERR("cannot get second parameter\n");
    return -8;
}
ret = cmp_str(&s1, &s2);
if(ret==0)
    return 1;
if(ret>0)
    return -1;
return -2;

}

i guess rather than the ability to use error codes, and the fact that one function does case sensitive and the other case insensitive, there's no tangible difference with ==

On Fri, Jul 11, 2014 at 5:30 PM, Alex Balashov abalashov@evaristesys.com wrote:

str