mdw@git.distorted.org.uk Git - sgt/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 void smemclr(void *b, size_t len);
  54
  55 /*
  56  * Debugging functions.
  57  *
  58  * Output goes to debug.log
  59  *
  60  * debug(()) (note the double brackets) is like printf().
  61  *
  62  * dmemdump() and dmemdumpl() both do memory dumps.  The difference
  63  * is that dmemdumpl() is more suited for when the memory address is
  64  * important (say because you'll be recording pointer values later
  65  * on).  dmemdump() is more concise.
  66  */
  67
  68 #ifdef DEBUG
  69 void debug_printf(char *fmt, ...);
  70 void debug_memdump(void *buf, int len, int L);
  71 #define debug(x) (debug_printf x)
  72 #define dmemdump(buf,len) debug_memdump (buf, len, 0);
  73 #define dmemdumpl(buf,len) debug_memdump (buf, len, 1);
  74 #else
  75 #define debug(x)
  76 #define dmemdump(buf,len)
  77 #define dmemdumpl(buf,len)
  78 #endif
  79
  80 #ifndef lenof
  81 #define lenof(x) ( (sizeof((x))) / (sizeof(*(x))))
  82 #endif
  83
  84 #ifndef min
  85 #define min(x,y) ( (x) < (y) ? (x) : (y) )
  86 #endif
  87 #ifndef max
  88 #define max(x,y) ( (x) > (y) ? (x) : (y) )
  89 #endif
  90
  91 #define GET_32BIT_LSB_FIRST(cp) \
  92   (((unsigned long)(unsigned char)(cp)[0]) | \
  93   ((unsigned long)(unsigned char)(cp)[1] << 8) | \
  94   ((unsigned long)(unsigned char)(cp)[2] << 16) | \
  95   ((unsigned long)(unsigned char)(cp)[3] << 24))
  96
  97 #define PUT_32BIT_LSB_FIRST(cp, value) ( \
  98   (cp)[0] = (unsigned char)(value), \
  99   (cp)[1] = (unsigned char)((value) >> 8), \
 100   (cp)[2] = (unsigned char)((value) >> 16), \
 101   (cp)[3] = (unsigned char)((value) >> 24) )
 102
 103 #define GET_16BIT_LSB_FIRST(cp) \
 104   (((unsigned long)(unsigned char)(cp)[0]) | \
 105   ((unsigned long)(unsigned char)(cp)[1] << 8))
 106
 107 #define PUT_16BIT_LSB_FIRST(cp, value) ( \
 108   (cp)[0] = (unsigned char)(value), \
 109   (cp)[1] = (unsigned char)((value) >> 8) )
 110
 111 #define GET_32BIT_MSB_FIRST(cp) \
 112   (((unsigned long)(unsigned char)(cp)[0] << 24) | \
 113   ((unsigned long)(unsigned char)(cp)[1] << 16) | \
 114   ((unsigned long)(unsigned char)(cp)[2] << 8) | \
 115   ((unsigned long)(unsigned char)(cp)[3]))
 116
 117 #define GET_32BIT(cp) GET_32BIT_MSB_FIRST(cp)
 118
 119 #define PUT_32BIT_MSB_FIRST(cp, value) ( \
 120   (cp)[0] = (unsigned char)((value) >> 24), \
 121   (cp)[1] = (unsigned char)((value) >> 16), \
 122   (cp)[2] = (unsigned char)((value) >> 8), \
 123   (cp)[3] = (unsigned char)(value) )
 124
 125 #define PUT_32BIT(cp, value) PUT_32BIT_MSB_FIRST(cp, value)
 126
 127 #define GET_16BIT_MSB_FIRST(cp) \
 128   (((unsigned long)(unsigned char)(cp)[0] << 8) | \
 129   ((unsigned long)(unsigned char)(cp)[1]))
 130
 131 #define PUT_16BIT_MSB_FIRST(cp, value) ( \
 132   (cp)[0] = (unsigned char)((value) >> 8), \
 133   (cp)[1] = (unsigned char)(value) )
 134
 135 #endif