Convert bmi_interface.c to bmi_interface.cpp

[Vineet1101]

No description provided.

[Vineet1101]

@antoninbas @jafingerhut can you provide some guidance and suggestion on this task

[antoninbas]

There is an issue for this task, with more details: #1249

However, I would say that this is not a trivial task in my mind. It should not be a "basic" 1-1 rewrite from C to C++. And this is a key part of the code base for which we do not really have CI test coverage (and for which writing tests is not super straightforward), so any PR will need to be carefully reviewed.

[Vineet1101]

`int bmi_interface_create(bmi_interface_t **bmi, const char *device) {
bmi_interface_t *bmi_ = malloc(sizeof(bmi_interface_t));

if(!bmi_) return -1;

bmi_->pcap_input_dumper = NULL;
bmi_->pcap_output_dumper = NULL;

char errbuf[PCAP_ERRBUF_SIZE];
bmi_->pcap = pcap_create(device, errbuf);

if(!bmi_->pcap) {
free(bmi_);
return -1;
}

if(pcap_set_promisc(bmi_->pcap, 1) != 0) {
pcap_close(bmi_->pcap);
free(bmi_);
return -1;
}` in this code it initializes the attributes using pointer so in c++ code what should i use RAII or a unique pointer
@antoninbas

[Vineet1101]

@antoninbas should I also update the .h file to .hpp file and modify its code also. I have completed the conversion of .c file to .cpp file

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