1 // SPDX-License-Identifier: GPL-2.0 2 #include "print_binary.h" 3 #include <linux/log2.h> 4 #include <linux/ctype.h> 5 6 int binary__fprintf(unsigned char *data, size_t len, 7 size_t bytes_per_line, binary__fprintf_t printer, 8 void *extra, FILE *fp) 9 { 10 size_t i, j, mask; 11 int printed = 0; 12 13 if (!printer) 14 return 0; 15 16 bytes_per_line = roundup_pow_of_two(bytes_per_line); 17 mask = bytes_per_line - 1; 18 19 printed += printer(BINARY_PRINT_DATA_BEGIN, 0, extra, fp); 20 for (i = 0; i < len; i++) { 21 if ((i & mask) == 0) { 22 printed += printer(BINARY_PRINT_LINE_BEGIN, -1, extra, fp); 23 printed += printer(BINARY_PRINT_ADDR, i, extra, fp); 24 } 25 26 printed += printer(BINARY_PRINT_NUM_DATA, data[i], extra, fp); 27 28 if (((i & mask) == mask) || i == len - 1) { 29 for (j = 0; j < mask-(i & mask); j++) 30 printed += printer(BINARY_PRINT_NUM_PAD, -1, extra, fp); 31 32 printer(BINARY_PRINT_SEP, i, extra, fp); 33 for (j = i & ~mask; j <= i; j++) 34 printed += printer(BINARY_PRINT_CHAR_DATA, data[j], extra, fp); 35 for (j = 0; j < mask-(i & mask); j++) 36 printed += printer(BINARY_PRINT_CHAR_PAD, i, extra, fp); 37 printed += printer(BINARY_PRINT_LINE_END, -1, extra, fp); 38 } 39 } 40 printed += printer(BINARY_PRINT_DATA_END, -1, extra, fp); 41 return printed; 42 } 43 44 int is_printable_array(char *p, unsigned int len) 45 { 46 unsigned int i; 47 48 if (!p || !len || p[len - 1] != 0) 49 return 0; 50 51 len--; 52 53 for (i = 0; i < len; i++) { 54 if (!isprint(p[i]) && !isspace(p[i])) 55 return 0; 56 } 57 return 1; 58 } 59