1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
3 */
4 #include <stdlib.h>
5 #include <stdio.h>
6 #include <errno.h>
7 #include <stdint.h>
8 #include <rte_hexdump.h>
9 #include <rte_string_fns.h>
10
11 #define LINE_LEN 128
12
13 void
rte_hexdump(FILE * f,const char * title,const void * buf,unsigned int len)14 rte_hexdump(FILE *f, const char *title, const void *buf, unsigned int len)
15 {
16 unsigned int i, out, ofs;
17 const unsigned char *data = buf;
18 char line[LINE_LEN]; /* space needed 8+16*3+3+16 == 75 */
19
20 fprintf(f, "%s at [%p], len=%u\n",
21 title ? : " Dump data", data, len);
22 ofs = 0;
23 while (ofs < len) {
24 /* format the line in the buffer */
25 out = snprintf(line, LINE_LEN, "%08X:", ofs);
26 for (i = 0; i < 16; i++) {
27 if (ofs + i < len)
28 snprintf(line + out, LINE_LEN - out,
29 " %02X", (data[ofs + i] & 0xff));
30 else
31 strcpy(line + out, " ");
32 out += 3;
33 }
34
35
36 for (; i <= 16; i++)
37 out += snprintf(line + out, LINE_LEN - out, " | ");
38
39 for (i = 0; ofs < len && i < 16; i++, ofs++) {
40 unsigned char c = data[ofs];
41
42 if (c < ' ' || c > '~')
43 c = '.';
44 out += snprintf(line + out, LINE_LEN - out, "%c", c);
45 }
46 fprintf(f, "%s\n", line);
47 }
48 fflush(f);
49 }
50
51 void
rte_memdump(FILE * f,const char * title,const void * buf,unsigned int len)52 rte_memdump(FILE *f, const char *title, const void *buf, unsigned int len)
53 {
54 unsigned int i, out;
55 const unsigned char *data = buf;
56 char line[LINE_LEN];
57
58 if (title)
59 fprintf(f, "%s: ", title);
60
61 line[0] = '\0';
62 for (i = 0, out = 0; i < len; i++) {
63 /* Make sure we do not overrun the line buffer length. */
64 if (out >= LINE_LEN - 4) {
65 fprintf(f, "%s", line);
66 out = 0;
67 line[out] = '\0';
68 }
69 out += snprintf(line + out, LINE_LEN - out, "%02x%s",
70 (data[i] & 0xff), ((i + 1) < len) ? ":" : "");
71 }
72 if (out > 0)
73 fprintf(f, "%s", line);
74 fprintf(f, "\n");
75
76 fflush(f);
77 }
78