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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <json/json.h>
#define FNAME "/usr/share/3gmodem/apn.json"
int main( int argc, char **argv )
{
int ret=0;
int cnt_apn=0;
if ( argc != 2 )
{
printf(" %s [APN_Provider_5_symbols]\n", argv[0]);
printf("%s 12345\n", argv[0]);
return -1;
} else if ( strlen(argv[1]) != 5 )
{
printf("ERR: Only 5 number apn supported\n");
return -1;
}
char *apnnumber = argv[1];
char mcc[4];
char mnc[3];
memcpy( mcc, apnnumber, 3 );
mcc[3] = 0;
memcpy( mnc, apnnumber+3 , 2 );
mnc[2] = 0;
int i;
struct json_object *jo = json_object_from_file( FNAME );
if ( jo == NULL )
{
printf("ERR:Cannot get file\n");
ret = 1;
goto free_resources;
}
struct json_object *jarr = json_object_object_get( jo, "data" );
if ( jarr == NULL )
{
printf("ERR:Cannot get data object\n");
ret = 1;
goto free_resources;
}
if ( !json_object_is_type( jarr, json_type_array ) )
{
printf("ERR:Object isnot array\n");
ret = 1;
goto free_resources;
}
for (i=0; i<json_object_array_length(jarr); i++)
{
json_object *obj = json_object_array_get_idx(jarr, i);
struct json_object *jmcc = json_object_object_get( obj, "mcc" );
struct json_object *jmnc = json_object_object_get( obj, "mnc" );
struct json_object *jname = json_object_object_get( obj, "name" );
struct json_object *jfullname = json_object_object_get( obj, "fullname" );
if ( (jmcc != NULL) && (jmnc != NULL) && ( (jname != NULL) || (jfullname != NULL) ) )
{
const char *tmp_mcc = json_object_to_json_string( jmcc );
const char *tmp_mnc = json_object_to_json_string( jmnc );
if ( strncmp( tmp_mcc+1, mcc, 3 ) != 0 )
{
continue;
}
if ( strncmp( tmp_mnc+1, mnc, 2 ) != 0 )
{
continue;
}
printf("%s ", tmp_mcc );
printf("%s ", tmp_mnc );
if ( jname != NULL )
printf("%s ", json_object_to_json_string( jname ) );
if ( jfullname != NULL )
printf("%s ", json_object_to_json_string( jfullname ) );
printf("\n");
cnt_apn++;
}
}
free_resources:
json_object_put( jo );
if (cnt_apn<=0)
ret = 1;
return ret;
}
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