tools/perf/util/print_binary.c

   1 #include "print_binary.h"
   2 #include <linux/log2.h>
   3 #include "sane_ctype.h"
   4
   5 void print_binary(unsigned char *data, size_t len,
   6                   size_t bytes_per_line, print_binary_t printer,
   7                   void *extra)
   8 {
   9         size_t i, j, mask;
  10
  11         if (!printer)
  12                 return;
  13
  14         bytes_per_line = roundup_pow_of_two(bytes_per_line);
  15         mask = bytes_per_line - 1;
  16
  17         printer(BINARY_PRINT_DATA_BEGIN, 0, extra);
  18         for (i = 0; i < len; i++) {
  19                 if ((i & mask) == 0) {
  20                         printer(BINARY_PRINT_LINE_BEGIN, -1, extra);
  21                         printer(BINARY_PRINT_ADDR, i, extra);
  22                 }
  23
  24                 printer(BINARY_PRINT_NUM_DATA, data[i], extra);
  25
  26                 if (((i & mask) == mask) || i == len - 1) {
  27                         for (j = 0; j < mask-(i & mask); j++)
  28                                 printer(BINARY_PRINT_NUM_PAD, -1, extra);
  29
  30                         printer(BINARY_PRINT_SEP, i, extra);
  31                         for (j = i & ~mask; j <= i; j++)
  32                                 printer(BINARY_PRINT_CHAR_DATA, data[j], extra);
  33                         for (j = 0; j < mask-(i & mask); j++)
  34                                 printer(BINARY_PRINT_CHAR_PAD, i, extra);
  35                         printer(BINARY_PRINT_LINE_END, -1, extra);
  36                 }
  37         }
  38         printer(BINARY_PRINT_DATA_END, -1, extra);
  39 }
  40
  41 int is_printable_array(char *p, unsigned int len)
  42 {
  43         unsigned int i;
  44
  45         if (!p || !len || p[len - 1] != 0)
  46                 return 0;
  47
  48         len--;
  49
  50         for (i = 0; i < len; i++) {
  51                 if (!isprint(p[i]) && !isspace(p[i]))
  52                         return 0;
  53         }
  54         return 1;
  55 }