Hi, Jock
This doesn't seem to be an OpenSIPS issue, but rather a regular
expression one :). The 'replace' and 'substr' functions in OpenSIPS use
the POSIX regular expressions[1]. I am not an regexp master, and I don't
know how they work in perl either, so I can't conclude if you can
achieve this in OpenSIPS, but I think the link below is a good starting
point.
[1] http://man7.org/linux/man-pages/man7/regex.7.html
Best regards,
Razvan Crainea
OpenSIPS Core Developer
http://www.opensips-solutions.com
On 03/15/2013 03:23 PM, Jock McKechnie wrote:
Greetings;
I've got a bit of an oddity. We have a TDM media convertor putting a
$00 (NUL) at the end of the Remote-Party-ID header which is killing
one of our proprietary (and unfixable) SIP stacks. For the life of me
I can't figure out how to get OpenSIPS to strip this - it appears like
the textops features don't work with a hex character like it would in,
say, perl... but I might be using the tooling completely wrong.
I've tried the following without apparent success:
if (is_present_hf("Remote-Party-ID")) {
# Either:
substr('/\x00//g');
# Or:
replace("\x00", "");
}
Am I using this completely incorrectly? Or does OpenSIPS not work
escape hex characters in this manner? Or not at all?
My thanks for your time!
- Jock
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