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- Added "--trace [file]" to the command line tool. It makes a very detailed

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trace dump get stored, with a full protocol dump that includes all received
  and transmitted data. This could be a very effective tool for debugging what
  goes wrong. This dump includes every byte the way it is sent to/received
  from the server. The dump is the plain-text version, so SSL transfers will
  still be readable.
This commit is contained in:
Daniel Stenberg 2002-05-03 12:14:09 +00:00
parent 86cc34c0de
commit 57ff28c9b7
1 changed files with 88 additions and 3 deletions
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91
src/main.c
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@ -370,9 +370,10 @@ static void help(void)
puts(" -r/--range <range> Retrieve a byte range from a HTTP/1.1 or FTP server\n"
" -R/--remote-time Set the remote file's time on the local output\n"
" -s/--silent Silent mode. Don't output anything\n"
" -S/--show-error Show error. With -s, make curl show errors when they occur\n"
" --stderr <file> Where to redirect stderr. - means stdout.\n"
" -S/--show-error Show error. With -s, make curl show errors when they occur");
puts(" --stderr <file> Where to redirect stderr. - means stdout.\n"
" -t/--telnet-option <OPT=val> Set telnet option\n"
" --trace <file> Dump a network/debug trace to the given file\n"
" -T/--upload-file <file> Transfer/upload <file> to remote site\n"
" --url <URL> Another way to specify URL to work with");
puts(" -u/--user <user[:password]> Specify user and password to use\n"
@ -452,6 +453,8 @@ struct Configurable {
bool crlf;
char *customrequest;
char *krb4level;
char *trace_dump; /* file to dump the network trace to, or NULL */
FILE *trace_stream;
long httpversion;
bool progressmode;
bool nobuffer;
@ -960,6 +963,7 @@ static ParameterError getparameter(char *flag, /* f or -long-flag */
#ifdef USE_ENVIRONMENT
{"5f", "environment", FALSE},
#endif
{"5g", "trace", TRUE},
{"0", "http1.0", FALSE},
{"1", "tlsv1", FALSE},
{"2", "sslv2", FALSE},
@ -1140,6 +1144,10 @@ static ParameterError getparameter(char *flag, /* f or -long-flag */
config->writeenv ^= TRUE;
break;
#endif
case 'g': /* --trace */
GetStr(&config->trace_dump, nextarg);
config->conf ^= CONF_VERBOSE; /* talk a lot */
break;
default: /* the URL! */
{
struct getout *url;
@ -1504,7 +1512,8 @@ static ParameterError getparameter(char *flag, /* f or -long-flag */
break;
case 't':
/* Telnet options */
config->telnet_options = curl_slist_append(config->telnet_options, nextarg);
config->telnet_options =
curl_slist_append(config->telnet_options, nextarg);
break;
case 'T':
/* we are uploading */
@ -1914,6 +1923,73 @@ void progressbarinit(struct ProgressData *bar,
bar->out = config->errors;
}
static
void dump(const char *text,
FILE *stream, unsigned char *ptr, size_t size)
{
size_t i;
size_t c;
#define DUMP_BYTES 16 /* per line */
fprintf(stream, "%s %d (0x%x) bytes\n", text, size, size);
for(i=0; i<size; i+= DUMP_BYTES) {
fprintf(stream, "%04x: ", i);
for(c = 0; c < DUMP_BYTES; c++)
if(i+c < size)
fprintf(stream, "%02x ", ptr[i+c]);
else
fputs(" ", stream);
for(c = 0; (c < DUMP_BYTES) && (i+c < size); c++)
fprintf(stream, "%c",
(ptr[i+c]>=0x20) && (ptr[i+c]<0x80)?ptr[i+c]:'.');
fputc('\n', stream); /* newline */
}
}
static
int my_trace(CURL *handle, curl_infotype type,
unsigned char *data, size_t size,
void *userp)
{
struct Configurable *config = (struct Configurable *)userp;
FILE *output=config->errors;
(void)handle; /* prevent compiler warning */
if(!config->trace_stream)
/* open for append */
config->trace_stream = fopen(config->trace_dump, "w");
if(config->trace_stream)
output = config->trace_stream;
switch (type) {
case CURLINFO_TEXT:
fprintf(output, "== Info: %s", data);
break;
case CURLINFO_HEADER_OUT:
dump("=> Send header", output, data, size);
break;
case CURLINFO_DATA_OUT:
dump("=> Send data ", output, data, size);
break;
case CURLINFO_HEADER_IN:
dump("<= Recv header", output, data, size);
break;
case CURLINFO_DATA_IN:
dump("<= Recv data", output, data, size);
break;
}
return 0;
}
void free_config_fields(struct Configurable *config)
{
if(config->random_file)
@ -2485,6 +2561,12 @@ operate(struct Configurable *config, int argc, char *argv[])
if(config->disable_epsv)
/* disable it */
curl_easy_setopt(curl, CURLOPT_FTP_USE_EPSV, FALSE);
/* new in curl 7.9.7 */
if(config->trace_dump) {
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, config);
}
res = curl_easy_perform(curl);
@ -2568,6 +2650,9 @@ operate(struct Configurable *config, int argc, char *argv[])
if(config->headerfile && !headerfilep && heads.stream)
fclose(heads.stream);
if(config->trace_stream)
fclose(config->trace_stream);
if(allocuseragent)
free(config->useragent);