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### Description
<!--
Explain what you did, what you expected to happen, and what actually happened.
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Use KEMI cfgutils.lock() and cfgutils.unlock().
Expect native behaviour of lock() unlock().
Instead segfault.
### Troubleshooting
The KEMI wrappers do not have leading sip_msg_t* argument.
Wrapper for lock() is cfg_lock()
Prototype for cfg_lock() is static int cfg_lock(str *lkey). Notice the missing sig_msg_t *
first argument.
#### Reproduction
Call cfgutils.lock() cfgutils.unlock() from scripting language
#### Debugging Data
#0 0x00007fdc6e7eff32 in core_case_hash (s1=0x7fdcb88ac1a0, s2=0x0, size=16) at
../../core/hashes.h:317
317
v=(ch_icase(*p)<<24)+(ch_icase(p[1])<<16)+(ch_icase(p[2])<<8)
s1 is actually the sip_msg_t* not the lock key string.
*s1 can actually be deferenced as *(sip_msg_t*) s1
#### Log Messages
#### SIP Traffic
### Possible Solutions
KEMI wrappers for cfgutils.c should include dummy sip_msg_t* argument.
### Additional Information
* 5.0 5.1 master - kamailio version
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