Control symbols from the request string in the configuration file passed to string variable as is.

[enuribekov-tempesta]

Motivation

In the configuration file, in the section health_check request string contains control symbols:

health_check auto {
	request		"GET / HTTP/1.0\r\n\r\n";
	request_url	"/";

During parsing these string placed to a string buffer as is, with quotation marks and two printables instead of single escape character.

For example, for the request in the code above we get following:

"  G  E  T     /     H  T  T  P  /  1  .  1  \  r  \  n  \  r  \  n  "
22 47 45 54 20 2f 20 48 54 54 50 2f 31 2e 31 5c 72 5c 6e 5c 72 5c 6e 22

instead of:

G  E  T     /     H  T  T  P  /  1  .  1
47 45 54 20 2f 20 48 54 54 50 2f 31 2e 31 0d 0a 0d 0a

Scope

Found in the health_check section but potentially may appear in other similar string parameters.
Does not appear in the hard-coded default request and configuration files created by tempesta-test.

Testing

Reproduce only manually.
It make sense to create test case for parsing not generated by framework, but predefined typical configuration file.

[krizhanovsky]

Does not appear in the hard-coded default request and configuration files created by tempesta-test.

Probably it makes sense to process shields in tempesta.sh probably with some help of Python/Perl instead of doing this in the kernel, just a proposal.