reader.c


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#include <stdio.h>
#include <limits.h>
#include <dlfcn.h>

#include "reader.h"
#include "config.h"

#define MAX_PLUGIN_PATH NAME_MAX
void* reader_module = NULL;

int reader_init(){
	char plugin[MAX_PLUGIN_PATH] = "";
	char* reader = config_get("nfc", "reader");

	if(!reader){
		printf("No reader plugin configured\n");
		return -1;
	}

	snprintf(plugin, sizeof(plugin), "./reader_%s.so", reader);
	reader_module = dlopen(plugin, RTLD_NOW);

	if(!reader_module){
		printf("Failed to load reader plugin %s\n", plugin);
		return -1;
	}

	return 0;
}

void reader_free(){
	if(reader_module){
		dlclose(reader_module);
		reader_module = NULL;
	}
}