1/***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22
23#include "test.h"
24#include "testutil.h"
25#include "testtrace.h"
26#include "memdebug.h"
27
28struct libtest_trace_cfg libtest_debug_config;
29
30static time_t epoch_offset; /* for test time tracing */
31static int known_offset; /* for test time tracing */
32
33static
34void libtest_debug_dump(const char *timebuf, const char *text, FILE *stream,
35 const unsigned char *ptr, size_t size, int nohex)
36{
37 size_t i;
38 size_t c;
39
40 unsigned int width = 0x10;
41
42 if(nohex)
43 /* without the hex output, we can fit more on screen */
44 width = 0x40;
45
46 fprintf(stream, "%s%s, %zu bytes (0x%zx)\n", timebuf, text,
47 size, size);
48
49 for(i = 0; i < size; i += width) {
50
51 fprintf(stream, "%04zx: ", i);
52
53 if(!nohex) {
54 /* hex not disabled, show it */
55 for(c = 0; c < width; c++)
56 if(i + c < size)
57 fprintf(stream, "%02x ", ptr[i + c]);
58 else
59 fputs(" ", stream);
60 }
61
62 for(c = 0; (c < width) && (i + c < size); c++) {
63 /* check for 0D0A; if found, skip past and start a new line of output */
64 if(nohex &&
65 (i + c + 1 < size) && (ptr[i + c] == 0x0D) &&
66 (ptr[i + c + 1] == 0x0A)) {
67 i += (c + 2 - width);
68 break;
69 }
70 fprintf(stream, "%c", ((ptr[i + c] >= 0x20) && (ptr[i + c] < 0x80)) ?
71 ptr[i + c] : '.');
72 /* check again for 0D0A, to avoid an extra \n if it's at width */
73 if(nohex &&
74 (i + c + 2 < size) && (ptr[i + c + 1] == 0x0D) &&
75 (ptr[i + c + 2] == 0x0A)) {
76 i += (c + 3 - width);
77 break;
78 }
79 }
80 fputc('\n', stream); /* newline */
81 }
82 fflush(stream);
83}
84
85int libtest_debug_cb(CURL *handle, curl_infotype type,
86 unsigned char *data, size_t size,
87 void *userp)
88{
89
90 struct libtest_trace_cfg *trace_cfg = userp;
91 const char *text;
92 struct timeval tv;
93 char timebuf[20];
94 char *timestr;
95 time_t secs;
96
97 (void)handle;
98
99 timebuf[0] = '\0';
100 timestr = &timebuf[0];
101
102 if(trace_cfg->tracetime) {
103 struct tm *now;
104 tv = tutil_tvnow();
105 if(!known_offset) {
106 epoch_offset = time(NULL) - tv.tv_sec;
107 known_offset = 1;
108 }
109 secs = epoch_offset + tv.tv_sec;
110 now = localtime(&secs); /* not thread safe but we don't care */
111 msnprintf(timebuf, sizeof(timebuf), "%02d:%02d:%02d.%06ld ",
112 now->tm_hour, now->tm_min, now->tm_sec, (long)tv.tv_usec);
113 }
114
115 switch(type) {
116 case CURLINFO_TEXT:
117 fprintf(stderr, "%s== Info: %s", timestr, (char *)data);
118 /* FALLTHROUGH */
119 default: /* in case a new one is introduced to shock us */
120 return 0;
121
122 case CURLINFO_HEADER_OUT:
123 text = "=> Send header";
124 break;
125 case CURLINFO_DATA_OUT:
126 text = "=> Send data";
127 break;
128 case CURLINFO_SSL_DATA_OUT:
129 text = "=> Send SSL data";
130 break;
131 case CURLINFO_HEADER_IN:
132 text = "<= Recv header";
133 break;
134 case CURLINFO_DATA_IN:
135 text = "<= Recv data";
136 break;
137 case CURLINFO_SSL_DATA_IN:
138 text = "<= Recv SSL data";
139 break;
140 }
141
142 libtest_debug_dump(timebuf, text, stderr, data, size, trace_cfg->nohex);
143 return 0;
144}
145