1/*
2 * librd - Rapid Development C library
3 *
4 * Copyright (c) 2012-2013, Magnus Edenhill
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include "rdkafka_int.h"
30#include "rdlog.h"
31
32#include <stdarg.h>
33#include <string.h>
34#include <ctype.h>
35
36
37
38
39void rd_hexdump (FILE *fp, const char *name, const void *ptr, size_t len) {
40 const char *p = (const char *)ptr;
41 size_t of = 0;
42
43
44 if (name)
45 fprintf(fp, "%s hexdump (%"PRIusz" bytes):\n", name, len);
46
47 for (of = 0 ; of < len ; of += 16) {
48 char hexen[16*3+1];
49 char charen[16+1];
50 int hof = 0;
51
52 int cof = 0;
53 unsigned int i;
54
55 for (i = (unsigned int)of ; i < (unsigned int)of + 16 && i < len ; i++) {
56 hof += rd_snprintf(hexen+hof, sizeof(hexen)-hof,
57 "%02x ",
58 p[i] & 0xff);
59 cof += rd_snprintf(charen+cof, sizeof(charen)-cof, "%c",
60 isprint((int)p[i]) ? p[i] : '.');
61 }
62 fprintf(fp, "%08zx: %-48s %-16s\n",
63 of, hexen, charen);
64 }
65}
66
67
68void rd_iov_print (const char *what, int iov_idx, const struct iovec *iov,
69 int hexdump) {
70 printf("%s: iov #%i: %"PRIusz"\n", what, iov_idx,
71 (size_t)iov->iov_len);
72 if (hexdump)
73 rd_hexdump(stdout, what, iov->iov_base, iov->iov_len);
74}
75
76
77void rd_msghdr_print (const char *what, const struct msghdr *msg,
78 int hexdump) {
79 int i;
80 size_t len = 0;
81
82 printf("%s: iovlen %"PRIusz"\n", what, (size_t)msg->msg_iovlen);
83
84 for (i = 0 ; i < (int)msg->msg_iovlen ; i++) {
85 rd_iov_print(what, i, &msg->msg_iov[i], hexdump);
86 len += msg->msg_iov[i].iov_len;
87 }
88 printf("%s: ^ message was %"PRIusz" bytes in total\n", what, len);
89}
90