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      1 #ifndef NODEBUG				/* NODEBUG inhibits debugging */
      2 #ifndef DEBUG				/* and if DEBUG not already defined */
      3 #ifndef MINSIZE				/* MINSIZE inhibits debugging */
      4 #ifndef DEBUG
      5 #define DEBUG
      6 #endif /* DEBUG */
      7 #endif /* MINSIZE */
      8 #endif /* DEBUG */
      9 #endif /* NODEBUG */
     10 
     11 #ifdef DEBUG				/* Debugging included... */
     12 /* dodebug() function codes... */
     13 #define DB_OPN 1			/* Open log */
     14 #define DB_LOG 2			/* Write label+string or int to log */
     15 #define DB_MSG 3			/* Write message to log */
     16 #define DB_CHR 4			/* Write label + char to log */
     17 #define DB_PKT 5			/* Record a Kermit packet in log */
     18 #define DB_CLS 6			/* Close log */
     19 
     20 void dodebug(int, UCHAR *, UCHAR *, long); /* Prototype */
     21 /*
     22   dodebug() is accessed throug a macro that:
     23    . Coerces its args to the required types.
     24    . Accesses dodebug() directly or thru a pointer according to context.
     25    . Makes it disappear entirely if DEBUG not defined.
     26 */
     27 #ifdef KERMIT_C
     28 /* In kermit.c we debug only through a function pointer */
     29 #define debug(a,b,c,d) \
     30 if(*(k->dbf))(*(k->dbf))(a,(UCHAR *)b,(UCHAR *)c,(long)(d))
     31 
     32 #else  /* KERMIT_C */
     33 /* Elsewhere we can call the debug function directly */
     34 #define debug(a,b,c,d) dodebug(a,(UCHAR *)b,(UCHAR *)c,(long)(d))
     35 #endif /* KERMIT_C */
     36 
     37 #else  /* Debugging not included... */
     38 
     39 #define debug(a,b,c,d)
     40 #endif /* DEBUG */
     41