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      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) 1998 - 2019, 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 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 #include "tool_setup.h"
     23 
     24 #ifdef HAVE_SYS_IOCTL_H
     25 #include <sys/ioctl.h>
     26 #endif
     27 
     28 #define ENABLE_CURLX_PRINTF
     29 /* use our own printf() functions */
     30 #include "curlx.h"
     31 
     32 #include "tool_cfgable.h"
     33 #include "tool_cb_prg.h"
     34 #include "tool_util.h"
     35 
     36 #include "memdebug.h" /* keep this as LAST include */
     37 
     38 #ifdef HAVE_TERMIOS_H
     39 #  include <termios.h>
     40 #elif defined(HAVE_TERMIO_H)
     41 #  include <termio.h>
     42 #endif
     43 
     44 /* 200 values generated by this perl code:
     45 
     46    my $pi = 3.1415;
     47    foreach my $i (1 .. 200) {
     48      printf "%d, ", sin($i/200 * 2 * $pi) * 5000 + 5000;
     49    }
     50 */
     51 static const unsigned int sinus[] = {
     52   5157, 5313, 5470, 5626, 5782, 5936, 6090, 6243, 6394, 6545, 6693, 6840, 6985,
     53   7128, 7269, 7408, 7545, 7679, 7810, 7938, 8064, 8187, 8306, 8422, 8535, 8644,
     54   8750, 8852, 8950, 9045, 9135, 9221, 9303, 9381, 9454, 9524, 9588, 9648, 9704,
     55   9755, 9801, 9842, 9879, 9911, 9938, 9960, 9977, 9990, 9997, 9999, 9997, 9990,
     56   9977, 9960, 9938, 9911, 9879, 9842, 9801, 9755, 9704, 9648, 9588, 9524, 9455,
     57   9381, 9303, 9221, 9135, 9045, 8950, 8852, 8750, 8645, 8535, 8422, 8306, 8187,
     58   8064, 7939, 7810, 7679, 7545, 7409, 7270, 7129, 6986, 6841, 6694, 6545, 6395,
     59   6243, 6091, 5937, 5782, 5627, 5470, 5314, 5157, 5000, 4843, 4686, 4529, 4373,
     60   4218, 4063, 3909, 3757, 3605, 3455, 3306, 3159, 3014, 2871, 2730, 2591, 2455,
     61   2321, 2190, 2061, 1935, 1813, 1693, 1577, 1464, 1355, 1249, 1147, 1049, 955,
     62   864, 778, 696, 618, 545, 476, 411, 351, 295, 244, 198, 157, 120, 88, 61, 39,
     63   22, 9, 2, 0, 2, 9, 22, 39, 61, 88, 120, 156, 198, 244, 295, 350, 410, 475,
     64   544, 618, 695, 777, 864, 954, 1048, 1146, 1248, 1354, 1463, 1576, 1692, 1812,
     65   1934, 2060, 2188, 2320, 2454, 2590, 2729, 2870, 3013, 3158, 3305, 3454, 3604,
     66   3755, 3908, 4062, 4216, 4372, 4528, 4685, 4842, 4999
     67 };
     68 
     69 static void fly(struct ProgressData *bar, bool moved)
     70 {
     71   char buf[256];
     72   int pos;
     73   int check = bar->width - 2;
     74 
     75   msnprintf(buf, sizeof(buf), "%*s\r", bar->width-1, " ");
     76   memcpy(&buf[bar->bar], "-=O=-", 5);
     77 
     78   pos = sinus[bar->tick%200] / (10000 / check);
     79   buf[pos] = '#';
     80   pos = sinus[(bar->tick + 5)%200] / (10000 / check);
     81   buf[pos] = '#';
     82   pos = sinus[(bar->tick + 10)%200] / (10000 / check);
     83   buf[pos] = '#';
     84   pos = sinus[(bar->tick + 15)%200] / (10000 / check);
     85   buf[pos] = '#';
     86 
     87   fputs(buf, bar->out);
     88   bar->tick += 2;
     89   if(bar->tick >= 200)
     90     bar->tick -= 200;
     91 
     92   bar->bar += (moved?bar->barmove:0);
     93   if(bar->bar >= (bar->width - 6)) {
     94     bar->barmove = -1;
     95     bar->bar = bar->width - 6;
     96   }
     97   else if(bar->bar < 0) {
     98     bar->barmove = 1;
     99     bar->bar = 0;
    100   }
    101 }
    102 
    103 /*
    104 ** callback for CURLOPT_XFERINFOFUNCTION
    105 */
    106 
    107 #define MAX_BARLENGTH 256
    108 
    109 #if (SIZEOF_CURL_OFF_T == 4)
    110 #  define CURL_OFF_T_MAX CURL_OFF_T_C(0x7FFFFFFF)
    111 #else
    112    /* assume CURL_SIZEOF_CURL_OFF_T == 8 */
    113 #  define CURL_OFF_T_MAX CURL_OFF_T_C(0x7FFFFFFFFFFFFFFF)
    114 #endif
    115 
    116 int tool_progress_cb(void *clientp,
    117                      curl_off_t dltotal, curl_off_t dlnow,
    118                      curl_off_t ultotal, curl_off_t ulnow)
    119 {
    120   /* The original progress-bar source code was written for curl by Lars Aas,
    121      and this new edition inherits some of his concepts. */
    122 
    123   struct timeval now = tvnow();
    124   struct ProgressData *bar = (struct ProgressData *)clientp;
    125   curl_off_t total;
    126   curl_off_t point;
    127 
    128   /* expected transfer size */
    129   if((CURL_OFF_T_MAX - bar->initial_size) < (dltotal + ultotal))
    130     total = CURL_OFF_T_MAX;
    131   else
    132     total = dltotal + ultotal + bar->initial_size;
    133 
    134   /* we've come this far */
    135   if((CURL_OFF_T_MAX - bar->initial_size) < (dlnow + ulnow))
    136     point = CURL_OFF_T_MAX;
    137   else
    138     point = dlnow + ulnow + bar->initial_size;
    139 
    140   if(bar->calls) {
    141     /* after first call... */
    142     if(total) {
    143       /* we know the total data to get... */
    144       if(bar->prev == point)
    145         /* progress didn't change since last invoke */
    146         return 0;
    147       else if((tvdiff(now, bar->prevtime) < 100L) && point < total)
    148         /* limit progress-bar updating to 10 Hz except when we're at 100% */
    149         return 0;
    150     }
    151     else {
    152       /* total is unknown */
    153       if(tvdiff(now, bar->prevtime) < 100L)
    154         /* limit progress-bar updating to 10 Hz */
    155         return 0;
    156       fly(bar, point != bar->prev);
    157     }
    158   }
    159 
    160   /* simply count invokes */
    161   bar->calls++;
    162 
    163   if((total > 0) && (point != bar->prev)) {
    164     char line[MAX_BARLENGTH + 1];
    165     char format[40];
    166     double frac;
    167     double percent;
    168     int barwidth;
    169     int num;
    170     if(point > total)
    171       /* we have got more than the expected total! */
    172       total = point;
    173 
    174     frac = (double)point / (double)total;
    175     percent = frac * 100.0;
    176     barwidth = bar->width - 7;
    177     num = (int) (((double)barwidth) * frac);
    178     if(num > MAX_BARLENGTH)
    179       num = MAX_BARLENGTH;
    180     memset(line, '#', num);
    181     line[num] = '\0';
    182     msnprintf(format, sizeof(format), "\r%%-%ds %%5.1f%%%%", barwidth);
    183     fprintf(bar->out, format, line, percent);
    184   }
    185   fflush(bar->out);
    186   bar->prev = point;
    187   bar->prevtime = now;
    188 
    189   return 0;
    190 }
    191 
    192 void progressbarinit(struct ProgressData *bar,
    193                      struct OperationConfig *config)
    194 {
    195   char *colp;
    196   memset(bar, 0, sizeof(struct ProgressData));
    197 
    198   /* pass this through to progress function so
    199    * it can display progress towards total file
    200    * not just the part that's left. (21-may-03, dbyron) */
    201   if(config->use_resume)
    202     bar->initial_size = config->resume_from;
    203 
    204   colp = curlx_getenv("COLUMNS");
    205   if(colp) {
    206     char *endptr;
    207     long num = strtol(colp, &endptr, 10);
    208     if((endptr != colp) && (endptr == colp + strlen(colp)) && (num > 20))
    209       bar->width = (int)num;
    210     curl_free(colp);
    211   }
    212 
    213   if(!bar->width) {
    214     int cols = 0;
    215 
    216 #ifdef TIOCGSIZE
    217     struct ttysize ts;
    218     if(!ioctl(STDIN_FILENO, TIOCGSIZE, &ts))
    219       cols = ts.ts_cols;
    220 #elif defined(TIOCGWINSZ)
    221     struct winsize ts;
    222     if(!ioctl(STDIN_FILENO, TIOCGWINSZ, &ts))
    223       cols = ts.ws_col;
    224 #elif defined(_WIN32)
    225     {
    226       HANDLE  stderr_hnd = GetStdHandle(STD_ERROR_HANDLE);
    227       CONSOLE_SCREEN_BUFFER_INFO console_info;
    228 
    229       if((stderr_hnd != INVALID_HANDLE_VALUE) &&
    230          GetConsoleScreenBufferInfo(stderr_hnd, &console_info)) {
    231         /*
    232          * Do not use +1 to get the true screen-width since writing a
    233          * character at the right edge will cause a line wrap.
    234          */
    235         cols = (int)
    236           (console_info.srWindow.Right - console_info.srWindow.Left);
    237       }
    238     }
    239 #endif /* TIOCGSIZE */
    240     bar->width = cols;
    241   }
    242 
    243   if(!bar->width)
    244     bar->width = 79;
    245   else if(bar->width > MAX_BARLENGTH)
    246     bar->width = MAX_BARLENGTH;
    247 
    248   bar->out = config->global->errors;
    249   bar->tick = 150;
    250   bar->barmove = 1;
    251 }
    252