json_helpers.h

   1 #ifndef JSON_HELPERS_H
   2 #define JSON_HELPERS_H
   3
   4 #include <stdio.h>
   5 #include <stdint.h>
   6
   7 // really simple JSON helpers
   8 #define JSON_START()    dprintf(fd,"{")
   9 #define JSON_NUM(NAME)  dprintf(fd,"\"" #NAME "\":%d", NAME) //see the int?
  10 #define JSON_NEXT()     dprintf(fd,",")
  11 #define JSON_STR(NAME)  dprintf(fd,"\"" #NAME "\":\"%s\"", NAME)
  12 #define JSON_CHAR(NAME) dprintf(fd,"\"" #NAME "\":\"%c\"", NAME)
  13 #define JSON_END()      dprintf(fd,"}\n")
  14
  15 static inline void
  16 keys_json_print(int fd, char key)
  17 {
  18         static const char *type = "keys";
  19
  20         JSON_START();
  21         JSON_STR(type);
  22         JSON_NEXT();
  23         JSON_CHAR(key);
  24         JSON_END();
  25 }
  26
  27 static inline void
  28 rfid_json_print(int fd,
  29                 uint8_t card_type,
  30                 uint8_t sak,           //select acknowledge
  31                 char *uid,
  32                 uint8_t size)
  33 {
  34     static const char *type = "rfid";
  35
  36     JSON_START();
  37     JSON_STR(type);
  38     JSON_NEXT();
  39     JSON_NUM(card_type);
  40     JSON_NEXT();
  41     JSON_NUM(sak);
  42     JSON_NEXT();
  43     JSON_NUM(size);
  44     JSON_NEXT();
  45     JSON_STR(uid);
  46     JSON_END();
  47 }
  48
  49 #endif