tools/perf/util/print_binary.c

   1 #include "print_binary.h"
   2 #include <linux/log2.h>
   3 #include "sane_ctype.h"
   4
   5 int binary__fprintf(unsigned char *data, size_t len,
   6                     size_t bytes_per_line, binary__fprintf_t printer,
   7                     void *extra, FILE *fp)
   8 {
   9         size_t i, j, mask;
  10         int printed = 0;
  11
  12         if (!printer)
  13                 return 0;
  14
  15         bytes_per_line = roundup_pow_of_two(bytes_per_line);
  16         mask = bytes_per_line - 1;
  17
  18         printed += printer(BINARY_PRINT_DATA_BEGIN, 0, extra, fp);
  19         for (i = 0; i < len; i++) {
  20                 if ((i & mask) == 0) {
  21                         printed += printer(BINARY_PRINT_LINE_BEGIN, -1, extra, fp);
  22                         printed += printer(BINARY_PRINT_ADDR, i, extra, fp);
  23                 }
  24
  25                 printed += printer(BINARY_PRINT_NUM_DATA, data[i], extra, fp);
  26
  27                 if (((i & mask) == mask) || i == len - 1) {
  28                         for (j = 0; j < mask-(i & mask); j++)
  29                                 printed += printer(BINARY_PRINT_NUM_PAD, -1, extra, fp);
  30
  31                         printer(BINARY_PRINT_SEP, i, extra, fp);
  32                         for (j = i & ~mask; j <= i; j++)
  33                                 printed += printer(BINARY_PRINT_CHAR_DATA, data[j], extra, fp);
  34                         for (j = 0; j < mask-(i & mask); j++)
  35                                 printed += printer(BINARY_PRINT_CHAR_PAD, i, extra, fp);
  36                         printed += printer(BINARY_PRINT_LINE_END, -1, extra, fp);
  37                 }
  38         }
  39         printed += printer(BINARY_PRINT_DATA_END, -1, extra, fp);
  40         return printed;
  41 }
  42
  43 int is_printable_array(char *p, unsigned int len)
  44 {
  45         unsigned int i;
  46
  47         if (!p || !len || p[len - 1] != 0)
  48                 return 0;
  49
  50         len--;
  51
  52         for (i = 0; i < len; i++) {
  53                 if (!isprint(p[i]) && !isspace(p[i]))
  54                         return 0;
  55         }
  56         return 1;
  57 }