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      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel (at) 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 http://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 
     28 struct libtest_trace_cfg libtest_debug_config;
     29 
     30 static time_t epoch_offset; /* for test time tracing */
     31 static int    known_offset; /* for test time tracing */
     32 
     33 static
     34 void 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) && (ptr[i+c+1] == 0x0A)) {
     66         i += (c+2-width);
     67         break;
     68       }
     69       fprintf(stream, "%c", ((ptr[i+c] >= 0x20) && (ptr[i+c] < 0x80)) ?
     70               ptr[i+c] : '.');
     71       /* check again for 0D0A, to avoid an extra \n if it's at width */
     72       if(nohex &&
     73          (i+c+2 < size) && (ptr[i+c+1] == 0x0D) && (ptr[i+c+2] == 0x0A)) {
     74         i += (c+3-width);
     75         break;
     76       }
     77     }
     78     fputc('\n', stream); /* newline */
     79   }
     80   fflush(stream);
     81 }
     82 
     83 int libtest_debug_cb(CURL *handle, curl_infotype type,
     84                      unsigned char *data, size_t size,
     85                      void *userp)
     86 {
     87 
     88   struct libtest_trace_cfg *trace_cfg = userp;
     89   const char *text;
     90   struct timeval tv;
     91   struct tm *now;
     92   char timebuf[20];
     93   char *timestr;
     94   time_t secs;
     95 
     96   (void)handle;
     97 
     98   timebuf[0] = '\0';
     99   timestr = &timebuf[0];
    100 
    101   if(trace_cfg->tracetime) {
    102     tv = tutil_tvnow();
    103     if(!known_offset) {
    104       epoch_offset = time(NULL) - tv.tv_sec;
    105       known_offset = 1;
    106     }
    107     secs = epoch_offset + tv.tv_sec;
    108     now = localtime(&secs);  /* not thread safe but we don't care */
    109     snprintf(timebuf, sizeof(timebuf), "%02d:%02d:%02d.%06ld ",
    110              now->tm_hour, now->tm_min, now->tm_sec, (long)tv.tv_usec);
    111   }
    112 
    113   switch (type) {
    114   case CURLINFO_TEXT:
    115     fprintf(stderr, "%s== Info: %s", timestr, (char *)data);
    116   default: /* in case a new one is introduced to shock us */
    117     return 0;
    118 
    119   case CURLINFO_HEADER_OUT:
    120     text = "=> Send header";
    121     break;
    122   case CURLINFO_DATA_OUT:
    123     text = "=> Send data";
    124     break;
    125   case CURLINFO_SSL_DATA_OUT:
    126     text = "=> Send SSL data";
    127     break;
    128   case CURLINFO_HEADER_IN:
    129     text = "<= Recv header";
    130     break;
    131   case CURLINFO_DATA_IN:
    132     text = "<= Recv data";
    133     break;
    134   case CURLINFO_SSL_DATA_IN:
    135     text = "<= Recv SSL data";
    136     break;
    137   }
    138 
    139   libtest_debug_dump(timebuf, text, stderr, data, size, trace_cfg->nohex);
    140   return 0;
    141 }
    142 
    143