git.distorted.org.uk Git - u/mdw/putty/blob - misc.h

   1 /*
   2  * Header for misc.c.
   3  */
   4
   5 #ifndef PUTTY_MISC_H
   6 #define PUTTY_MISC_H
   7
   8 #include "puttymem.h"
   9
  10 #include <stdio.h>                     /* for FILE * */
  11 #include <stdarg.h>                    /* for va_list */
  12 #include <time.h>                      /* for struct tm */
  13
  14 #ifndef FALSE
  15 #define FALSE 0
  16 #endif
  17 #ifndef TRUE
  18 #define TRUE 1
  19 #endif
  20
  21 typedef struct Filename Filename;
  22 typedef struct FontSpec FontSpec;
  23
  24 unsigned long parse_blocksize(const char *bs);
  25 char ctrlparse(char *s, char **next);
  26
  27 char *dupstr(const char *s);
  28 char *dupcat(const char *s1, ...);
  29 char *dupprintf(const char *fmt, ...);
  30 char *dupvprintf(const char *fmt, va_list ap);
  31 void burnstr(char *string);
  32
  33 char *fgetline(FILE *fp);
  34
  35 void base64_encode_atom(unsigned char *data, int n, char *out);
  36
  37 struct bufchain_granule;
  38 typedef struct bufchain_tag {
  39     struct bufchain_granule *head, *tail;
  40     int buffersize;                    /* current amount of buffered data */
  41 } bufchain;
  42
  43 void bufchain_init(bufchain *ch);
  44 void bufchain_clear(bufchain *ch);
  45 int bufchain_size(bufchain *ch);
  46 void bufchain_add(bufchain *ch, const void *data, int len);
  47 void bufchain_prefix(bufchain *ch, void **data, int *len);
  48 void bufchain_consume(bufchain *ch, int len);
  49 void bufchain_fetch(bufchain *ch, void *data, int len);
  50
  51 struct tm ltime(void);
  52
  53 /*
  54  * Debugging functions.
  55  *
  56  * Output goes to debug.log
  57  *
  58  * debug(()) (note the double brackets) is like printf().
  59  *
  60  * dmemdump() and dmemdumpl() both do memory dumps.  The difference
  61  * is that dmemdumpl() is more suited for when the memory address is
  62  * important (say because you'll be recording pointer values later
  63  * on).  dmemdump() is more concise.
  64  */
  65
  66 #ifdef DEBUG
  67 void debug_printf(char *fmt, ...);
  68 void debug_memdump(void *buf, int len, int L);
  69 #define debug(x) (debug_printf x)
  70 #define dmemdump(buf,len) debug_memdump (buf, len, 0);
  71 #define dmemdumpl(buf,len) debug_memdump (buf, len, 1);
  72 #else
  73 #define debug(x)
  74 #define dmemdump(buf,len)
  75 #define dmemdumpl(buf,len)
  76 #endif
  77
  78 #ifndef lenof
  79 #define lenof(x) ( (sizeof((x))) / (sizeof(*(x))))
  80 #endif
  81
  82 #ifndef min
  83 #define min(x,y) ( (x) < (y) ? (x) : (y) )
  84 #endif
  85 #ifndef max
  86 #define max(x,y) ( (x) > (y) ? (x) : (y) )
  87 #endif
  88
  89 #define GET_32BIT_LSB_FIRST(cp) \
  90   (((unsigned long)(unsigned char)(cp)[0]) | \
  91   ((unsigned long)(unsigned char)(cp)[1] << 8) | \
  92   ((unsigned long)(unsigned char)(cp)[2] << 16) | \
  93   ((unsigned long)(unsigned char)(cp)[3] << 24))
  94
  95 #define PUT_32BIT_LSB_FIRST(cp, value) ( \
  96   (cp)[0] = (unsigned char)(value), \
  97   (cp)[1] = (unsigned char)((value) >> 8), \
  98   (cp)[2] = (unsigned char)((value) >> 16), \
  99   (cp)[3] = (unsigned char)((value) >> 24) )
 100
 101 #define GET_16BIT_LSB_FIRST(cp) \
 102   (((unsigned long)(unsigned char)(cp)[0]) | \
 103   ((unsigned long)(unsigned char)(cp)[1] << 8))
 104
 105 #define PUT_16BIT_LSB_FIRST(cp, value) ( \
 106   (cp)[0] = (unsigned char)(value), \
 107   (cp)[1] = (unsigned char)((value) >> 8) )
 108
 109 #define GET_32BIT_MSB_FIRST(cp) \
 110   (((unsigned long)(unsigned char)(cp)[0] << 24) | \
 111   ((unsigned long)(unsigned char)(cp)[1] << 16) | \
 112   ((unsigned long)(unsigned char)(cp)[2] << 8) | \
 113   ((unsigned long)(unsigned char)(cp)[3]))
 114
 115 #define GET_32BIT(cp) GET_32BIT_MSB_FIRST(cp)
 116
 117 #define PUT_32BIT_MSB_FIRST(cp, value) ( \
 118   (cp)[0] = (unsigned char)((value) >> 24), \
 119   (cp)[1] = (unsigned char)((value) >> 16), \
 120   (cp)[2] = (unsigned char)((value) >> 8), \
 121   (cp)[3] = (unsigned char)(value) )
 122
 123 #define PUT_32BIT(cp, value) PUT_32BIT_MSB_FIRST(cp, value)
 124
 125 #define GET_16BIT_MSB_FIRST(cp) \
 126   (((unsigned long)(unsigned char)(cp)[0] << 8) | \
 127   ((unsigned long)(unsigned char)(cp)[1]))
 128
 129 #define PUT_16BIT_MSB_FIRST(cp, value) ( \
 130   (cp)[0] = (unsigned char)((value) >> 8), \
 131   (cp)[1] = (unsigned char)(value) )
 132
 133 #endif