--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/curl/src/tool_cb_prg.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,257 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2019, 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"
+
+#ifdef HAVE_SYS_IOCTL_H
+#include <sys/ioctl.h>
+#endif
+
+#define ENABLE_CURLX_PRINTF
+/* use our own printf() functions */
+#include "curlx.h"
+
+#include "tool_cfgable.h"
+#include "tool_cb_prg.h"
+#include "tool_util.h"
+
+#include "memdebug.h" /* keep this as LAST include */
+
+#ifdef HAVE_TERMIOS_H
+#  include <termios.h>
+#elif defined(HAVE_TERMIO_H)
+#  include <termio.h>
+#endif
+
+/* 200 values generated by this perl code:
+
+   my $pi = 3.1415;
+   foreach my $i (1 .. 200) {
+     printf "%d, ", sin($i/200 * 2 * $pi) * 5000 + 5000;
+   }
+*/
+static const unsigned int sinus[] = {
+  5157, 5313, 5470, 5626, 5782, 5936, 6090, 6243, 6394, 6545, 6693, 6840, 6985,
+  7128, 7269, 7408, 7545, 7679, 7810, 7938, 8064, 8187, 8306, 8422, 8535, 8644,
+  8750, 8852, 8950, 9045, 9135, 9221, 9303, 9381, 9454, 9524, 9588, 9648, 9704,
+  9755, 9801, 9842, 9879, 9911, 9938, 9960, 9977, 9990, 9997, 9999, 9997, 9990,
+  9977, 9960, 9938, 9911, 9879, 9842, 9801, 9755, 9704, 9648, 9588, 9524, 9455,
+  9381, 9303, 9221, 9135, 9045, 8950, 8852, 8750, 8645, 8535, 8422, 8306, 8187,
+  8064, 7939, 7810, 7679, 7545, 7409, 7270, 7129, 6986, 6841, 6694, 6545, 6395,
+  6243, 6091, 5937, 5782, 5627, 5470, 5314, 5157, 5000, 4843, 4686, 4529, 4373,
+  4218, 4063, 3909, 3757, 3605, 3455, 3306, 3159, 3014, 2871, 2730, 2591, 2455,
+  2321, 2190, 2061, 1935, 1813, 1693, 1577, 1464, 1355, 1249, 1147, 1049, 955,
+  864, 778, 696, 618, 545, 476, 411, 351, 295, 244, 198, 157, 120, 88, 61, 39,
+  22, 9, 2, 0, 2, 9, 22, 39, 61, 88, 120, 156, 198, 244, 295, 350, 410, 475,
+  544, 618, 695, 777, 864, 954, 1048, 1146, 1248, 1354, 1463, 1576, 1692, 1812,
+  1934, 2060, 2188, 2320, 2454, 2590, 2729, 2870, 3013, 3158, 3305, 3454, 3604,
+  3755, 3908, 4062, 4216, 4372, 4528, 4685, 4842, 4999
+};
+
+static void fly(struct ProgressData *bar, bool moved)
+{
+  char buf[256];
+  int pos;
+  int check = bar->width - 2;
+
+  msnprintf(buf, sizeof(buf), "%*s\r", bar->width-1, " ");
+  memcpy(&buf[bar->bar], "-=O=-", 5);
+
+  pos = sinus[bar->tick%200] / (10000 / check);
+  buf[pos] = '#';
+  pos = sinus[(bar->tick + 5)%200] / (10000 / check);
+  buf[pos] = '#';
+  pos = sinus[(bar->tick + 10)%200] / (10000 / check);
+  buf[pos] = '#';
+  pos = sinus[(bar->tick + 15)%200] / (10000 / check);
+  buf[pos] = '#';
+
+  fputs(buf, bar->out);
+  bar->tick += 2;
+  if(bar->tick >= 200)
+    bar->tick -= 200;
+
+  bar->bar += (moved?bar->barmove:0);
+  if(bar->bar >= (bar->width - 6)) {
+    bar->barmove = -1;
+    bar->bar = bar->width - 6;
+  }
+  else if(bar->bar < 0) {
+    bar->barmove = 1;
+    bar->bar = 0;
+  }
+}
+
+/*
+** callback for CURLOPT_XFERINFOFUNCTION
+*/
+
+#define MAX_BARLENGTH 256
+
+#if (SIZEOF_CURL_OFF_T == 4)
+#  define CURL_OFF_T_MAX CURL_OFF_T_C(0x7FFFFFFF)
+#else
+   /* assume CURL_SIZEOF_CURL_OFF_T == 8 */
+#  define CURL_OFF_T_MAX CURL_OFF_T_C(0x7FFFFFFFFFFFFFFF)
+#endif
+
+int tool_progress_cb(void *clientp,
+                     curl_off_t dltotal, curl_off_t dlnow,
+                     curl_off_t ultotal, curl_off_t ulnow)
+{
+  /* The original progress-bar source code was written for curl by Lars Aas,
+     and this new edition inherits some of his concepts. */
+
+  struct timeval now = tvnow();
+  struct ProgressData *bar = (struct ProgressData *)clientp;
+  curl_off_t total;
+  curl_off_t point;
+
+  /* Calculate expected transfer size. initial_size can be less than zero
+     when indicating that we are expecting to get the filesize from the
+     remote */
+  if(bar->initial_size < 0 ||
+     ((CURL_OFF_T_MAX - bar->initial_size) < (dltotal + ultotal)))
+    total = CURL_OFF_T_MAX;
+  else
+    total = dltotal + ultotal + bar->initial_size;
+
+  /* Calculate the current progress. initial_size can be less than zero when
+     indicating that we are expecting to get the filesize from the remote */
+  if(bar->initial_size < 0 ||
+     ((CURL_OFF_T_MAX - bar->initial_size) < (dlnow + ulnow)))
+    point = CURL_OFF_T_MAX;
+  else
+    point = dlnow + ulnow + bar->initial_size;
+
+  if(bar->calls) {
+    /* after first call... */
+    if(total) {
+      /* we know the total data to get... */
+      if(bar->prev == point)
+        /* progress didn't change since last invoke */
+        return 0;
+      else if((tvdiff(now, bar->prevtime) < 100L) && point < total)
+        /* limit progress-bar updating to 10 Hz except when we're at 100% */
+        return 0;
+    }
+    else {
+      /* total is unknown */
+      if(tvdiff(now, bar->prevtime) < 100L)
+        /* limit progress-bar updating to 10 Hz */
+        return 0;
+      fly(bar, point != bar->prev);
+    }
+  }
+
+  /* simply count invokes */
+  bar->calls++;
+
+  if((total > 0) && (point != bar->prev)) {
+    char line[MAX_BARLENGTH + 1];
+    char format[40];
+    double frac;
+    double percent;
+    int barwidth;
+    int num;
+    if(point > total)
+      /* we have got more than the expected total! */
+      total = point;
+
+    frac = (double)point / (double)total;
+    percent = frac * 100.0;
+    barwidth = bar->width - 7;
+    num = (int) (((double)barwidth) * frac);
+    if(num > MAX_BARLENGTH)
+      num = MAX_BARLENGTH;
+    memset(line, '#', num);
+    line[num] = '\0';
+    msnprintf(format, sizeof(format), "\r%%-%ds %%5.1f%%%%", barwidth);
+    fprintf(bar->out, format, line, percent);
+  }
+  fflush(bar->out);
+  bar->prev = point;
+  bar->prevtime = now;
+
+  return 0;
+}
+
+void progressbarinit(struct ProgressData *bar,
+                     struct OperationConfig *config)
+{
+  char *colp;
+  memset(bar, 0, sizeof(struct ProgressData));
+
+  /* pass this through to progress function so
+   * it can display progress towards total file
+   * not just the part that's left. (21-may-03, dbyron) */
+  if(config->use_resume)
+    bar->initial_size = config->resume_from;
+
+  colp = curlx_getenv("COLUMNS");
+  if(colp) {
+    char *endptr;
+    long num = strtol(colp, &endptr, 10);
+    if((endptr != colp) && (endptr == colp + strlen(colp)) && (num > 20) &&
+       (num < 10000))
+      bar->width = (int)num;
+    curl_free(colp);
+  }
+
+  if(!bar->width) {
+    int cols = 0;
+
+#ifdef TIOCGSIZE
+    struct ttysize ts;
+    if(!ioctl(STDIN_FILENO, TIOCGSIZE, &ts))
+      cols = ts.ts_cols;
+#elif defined(TIOCGWINSZ)
+    struct winsize ts;
+    if(!ioctl(STDIN_FILENO, TIOCGWINSZ, &ts))
+      cols = ts.ws_col;
+#elif defined(WIN32)
+    {
+      HANDLE  stderr_hnd = GetStdHandle(STD_ERROR_HANDLE);
+      CONSOLE_SCREEN_BUFFER_INFO console_info;
+
+      if((stderr_hnd != INVALID_HANDLE_VALUE) &&
+         GetConsoleScreenBufferInfo(stderr_hnd, &console_info)) {
+        /*
+         * Do not use +1 to get the true screen-width since writing a
+         * character at the right edge will cause a line wrap.
+         */
+        cols = (int)
+          (console_info.srWindow.Right - console_info.srWindow.Left);
+      }
+    }
+#endif /* TIOCGSIZE */
+    bar->width = cols;
+  }
+
+  if(!bar->width)
+    bar->width = 79;
+  else if(bar->width > MAX_BARLENGTH)
+    bar->width = MAX_BARLENGTH;
+
+  bar->out = config->global->errors;
+  bar->tick = 150;
+  bar->barmove = 1;
+}