1/***************************************************************************
2 *                                  _   _ ____  _
3 *  Project                     ___| | | |  _ \| |
4 *                             / __| | | | |_) | |
5 *                            | (__| |_| |  _ <| |___
6 *                             \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2017, 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.haxx.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, %d bytes (0x%x)\n", timebuf, text,
47          (int)size, (int)size);
48
49  for(i = 0; i < size; i += width) {
50
51    fprintf(stream, "%04x: ", (int)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  struct tm *now;
94  char timebuf[20];
95  char *timestr;
96  time_t secs;
97
98  (void)handle;
99
100  timebuf[0] = '\0';
101  timestr = &timebuf[0];
102
103  if(trace_cfg->tracetime) {
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    snprintf(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
146