1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
|
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "tool_setup.h"
#define ENABLE_CURLX_PRINTF
/* use our own printf() functions */
#include "curlx.h"
#include "tool_cfgable.h"
#include "tool_convert.h"
#include "tool_msgs.h"
#include "tool_cb_dbg.h"
#include "tool_util.h"
#include "memdebug.h" /* keep this as LAST include */
static void dump(const char *timebuf, const char *text,
FILE *stream, const unsigned char *ptr, size_t size,
trace tracetype, curl_infotype infotype);
/*
** callback for CURLOPT_DEBUGFUNCTION
*/
int tool_debug_cb(CURL *handle, curl_infotype type,
char *data, size_t size,
void *userdata)
{
struct OperationConfig *operation = userdata;
struct GlobalConfig *config = operation->global;
FILE *output = config->errors;
const char *text;
struct timeval tv;
char timebuf[20];
time_t secs;
(void)handle; /* not used */
if(config->tracetime) {
struct tm *now;
static time_t epoch_offset;
static int known_offset;
tv = tvnow();
if(!known_offset) {
epoch_offset = time(NULL) - tv.tv_sec;
known_offset = 1;
}
secs = epoch_offset + tv.tv_sec;
now = localtime(&secs); /* not thread safe but we don't care */
msnprintf(timebuf, sizeof(timebuf), "%02d:%02d:%02d.%06ld ",
now->tm_hour, now->tm_min, now->tm_sec, (long)tv.tv_usec);
}
else
timebuf[0] = 0;
if(!config->trace_stream) {
/* open for append */
if(!strcmp("-", config->trace_dump))
config->trace_stream = stdout;
else if(!strcmp("%", config->trace_dump))
/* Ok, this is somewhat hackish but we do it undocumented for now */
config->trace_stream = config->errors; /* aka stderr */
else {
config->trace_stream = fopen(config->trace_dump, FOPEN_WRITETEXT);
config->trace_fopened = TRUE;
}
}
if(config->trace_stream)
output = config->trace_stream;
if(!output) {
warnf(config, "Failed to create/open output");
return 0;
}
if(config->tracetype == TRACE_PLAIN) {
/*
* This is the trace look that is similar to what libcurl makes on its
* own.
*/
static const char * const s_infotype[] = {
"*", "<", ">", "{", "}", "{", "}"
};
static bool newl = FALSE;
static bool traced_data = FALSE;
switch(type) {
case CURLINFO_HEADER_OUT:
if(size > 0) {
size_t st = 0;
size_t i;
for(i = 0; i < size - 1; i++) {
if(data[i] == '\n') { /* LF */
if(!newl) {
fprintf(output, "%s%s ", timebuf, s_infotype[type]);
}
(void)fwrite(data + st, i - st + 1, 1, output);
st = i + 1;
newl = FALSE;
}
}
if(!newl)
fprintf(output, "%s%s ", timebuf, s_infotype[type]);
(void)fwrite(data + st, i - st + 1, 1, output);
}
newl = (size && (data[size - 1] != '\n')) ? TRUE : FALSE;
traced_data = FALSE;
break;
case CURLINFO_TEXT:
case CURLINFO_HEADER_IN:
if(!newl)
fprintf(output, "%s%s ", timebuf, s_infotype[type]);
(void)fwrite(data, size, 1, output);
newl = (size && (data[size - 1] != '\n')) ? TRUE : FALSE;
traced_data = FALSE;
break;
case CURLINFO_DATA_OUT:
case CURLINFO_DATA_IN:
case CURLINFO_SSL_DATA_IN:
case CURLINFO_SSL_DATA_OUT:
if(!traced_data) {
/* if the data is output to a tty and we're sending this debug trace
to stderr or stdout, we don't display the alert about the data not
being shown as the data _is_ shown then just not via this
function */
if(!config->isatty || ((output != stderr) && (output != stdout))) {
if(!newl)
fprintf(output, "%s%s ", timebuf, s_infotype[type]);
fprintf(output, "[%zu bytes data]\n", size);
newl = FALSE;
traced_data = TRUE;
}
}
break;
default: /* nada */
newl = FALSE;
traced_data = FALSE;
break;
}
return 0;
}
#ifdef CURL_DOES_CONVERSIONS
/* Special processing is needed for CURLINFO_HEADER_OUT blocks
* if they contain both headers and data (separated by CRLFCRLF).
* We dump the header text and then switch type to CURLINFO_DATA_OUT.
*/
if((type == CURLINFO_HEADER_OUT) && (size > 4)) {
size_t i;
for(i = 0; i < size - 4; i++) {
if(memcmp(&data[i], "\r\n\r\n", 4) == 0) {
/* dump everything through the CRLFCRLF as a sent header */
text = "=> Send header";
dump(timebuf, text, output, (unsigned char *)data, i + 4,
config->tracetype, type);
data += i + 3;
size -= i + 4;
type = CURLINFO_DATA_OUT;
data += 1;
break;
}
}
}
#endif /* CURL_DOES_CONVERSIONS */
switch(type) {
case CURLINFO_TEXT:
fprintf(output, "%s== Info: %s", timebuf, data);
/* FALLTHROUGH */
default: /* in case a new one is introduced to shock us */
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
case CURLINFO_SSL_DATA_IN:
text = "<= Recv SSL data";
break;
case CURLINFO_SSL_DATA_OUT:
text = "=> Send SSL data";
break;
}
dump(timebuf, text, output, (unsigned char *) data, size, config->tracetype,
type);
return 0;
}
static void dump(const char *timebuf, const char *text,
FILE *stream, const unsigned char *ptr, size_t size,
trace tracetype, curl_infotype infotype)
{
size_t i;
size_t c;
unsigned int width = 0x10;
if(tracetype == TRACE_ASCII)
/* without the hex output, we can fit more on screen */
width = 0x40;
fprintf(stream, "%s%s, %zu bytes (0x%zx)\n", timebuf, text, size, size);
for(i = 0; i < size; i += width) {
fprintf(stream, "%04zx: ", i);
if(tracetype == TRACE_BIN) {
/* hex not disabled, show it */
for(c = 0; c < width; c++)
if(i + c < size)
fprintf(stream, "%02x ", ptr[i + c]);
else
fputs(" ", stream);
}
for(c = 0; (c < width) && (i + c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if((tracetype == TRACE_ASCII) &&
(i + c + 1 < size) && (ptr[i + c] == 0x0D) &&
(ptr[i + c + 1] == 0x0A)) {
i += (c + 2 - width);
break;
}
#ifdef CURL_DOES_CONVERSIONS
/* repeat the 0D0A check above but use the host encoding for CRLF */
if((tracetype == TRACE_ASCII) &&
(i + c + 1 < size) && (ptr[i + c] == '\r') &&
(ptr[i + c + 1] == '\n')) {
i += (c + 2 - width);
break;
}
/* convert to host encoding and print this character */
fprintf(stream, "%c", convert_char(infotype, ptr[i + c]));
#else
(void)infotype;
fprintf(stream, "%c", ((ptr[i + c] >= 0x20) && (ptr[i + c] < 0x80)) ?
ptr[i + c] : UNPRINTABLE_CHAR);
#endif /* CURL_DOES_CONVERSIONS */
/* check again for 0D0A, to avoid an extra \n if it's at width */
if((tracetype == TRACE_ASCII) &&
(i + c + 2 < size) && (ptr[i + c + 1] == 0x0D) &&
(ptr[i + c + 2] == 0x0A)) {
i += (c + 3 - width);
break;
}
}
fputc('\n', stream); /* newline */
}
fflush(stream);
}
|
