LXR linux/tools/perf/util/print

   1// SPDX-License-Identifier: GPL-2.0
   2#include "print_binary.h"
   3#include <linux/log2.h>
   4#include "sane_ctype.h"
   5
   6void print_binary(unsigned char *data, size_t len,
   7                  size_t bytes_per_line, print_binary_t printer,
   8                  void *extra)
   9{
  10        size_t i, j, mask;
  11
  12        if (!printer)
  13                return;
  14
  15        bytes_per_line = roundup_pow_of_two(bytes_per_line);
  16        mask = bytes_per_line - 1;
  17
  18        printer(BINARY_PRINT_DATA_BEGIN, 0, extra);
  19        for (i = 0; i < len; i++) {
  20                if ((i & mask) == 0) {
  21                        printer(BINARY_PRINT_LINE_BEGIN, -1, extra);
  22                        printer(BINARY_PRINT_ADDR, i, extra);
  23                }
  24
  25                printer(BINARY_PRINT_NUM_DATA, data[i], extra);
  26
  27                if (((i & mask) == mask) || i == len - 1) {
  28                        for (j = 0; j < mask-(i & mask); j++)
  29                                printer(BINARY_PRINT_NUM_PAD, -1, extra);
  30
  31                        printer(BINARY_PRINT_SEP, i, extra);
  32                        for (j = i & ~mask; j <= i; j++)
  33                                printer(BINARY_PRINT_CHAR_DATA, data[j], extra);
  34                        for (j = 0; j < mask-(i & mask); j++)
  35                                printer(BINARY_PRINT_CHAR_PAD, i, extra);
  36                        printer(BINARY_PRINT_LINE_END, -1, extra);
  37                }
  38        }
  39        printer(BINARY_PRINT_DATA_END, -1, extra);
  40}
  41
  42int is_printable_array(char *p, unsigned int len)
  43{
  44        unsigned int i;
  45
  46        if (!p || !len || p[len - 1] != 0)
  47                return 0;
  48
  49        len--;
  50
  51        for (i = 0; i < len; i++) {
  52                if (!isprint(p[i]) && !isspace(p[i]))
  53                        return 0;
  54        }
  55        return 1;
  56}
  57