--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/curl/src/tool_operhlp.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,194 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  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"
+
+#include "strcase.h"
+
+#define ENABLE_CURLX_PRINTF
+/* use our own printf() functions */
+#include "curlx.h"
+
+#include "tool_cfgable.h"
+#include "tool_convert.h"
+#include "tool_doswin.h"
+#include "tool_operhlp.h"
+#include "tool_metalink.h"
+
+#include "memdebug.h" /* keep this as LAST include */
+
+void clean_getout(struct OperationConfig *config)
+{
+  struct getout *next;
+  struct getout *node = config->url_list;
+
+  while(node) {
+    next = node->next;
+    Curl_safefree(node->url);
+    Curl_safefree(node->outfile);
+    Curl_safefree(node->infile);
+    Curl_safefree(node);
+    node = next;
+  }
+  config->url_list = NULL;
+}
+
+bool output_expected(const char *url, const char *uploadfile)
+{
+  if(!uploadfile)
+    return TRUE;  /* download */
+  if(checkprefix("http://", url) || checkprefix("https://", url))
+    return TRUE;   /* HTTP(S) upload */
+
+  return FALSE; /* non-HTTP upload, probably no output should be expected */
+}
+
+bool stdin_upload(const char *uploadfile)
+{
+  return (!strcmp(uploadfile, "-") ||
+          !strcmp(uploadfile, ".")) ? TRUE : FALSE;
+}
+
+/*
+ * Adds the file name to the URL if it doesn't already have one.
+ * url will be freed before return if the returned pointer is different
+ */
+char *add_file_name_to_url(char *url, const char *filename)
+{
+  /* If no file name part is given in the URL, we add this file name */
+  char *ptr = strstr(url, "://");
+  CURL *curl = curl_easy_init(); /* for url escaping */
+  if(!curl)
+    return NULL; /* error! */
+  if(ptr)
+    ptr += 3;
+  else
+    ptr = url;
+  ptr = strrchr(ptr, '/');
+  if(!ptr || !strlen(++ptr)) {
+    /* The URL has no file name part, add the local file name. In order
+       to be able to do so, we have to create a new URL in another
+       buffer.*/
+
+    /* We only want the part of the local path that is on the right
+       side of the rightmost slash and backslash. */
+    const char *filep = strrchr(filename, '/');
+    char *file2 = strrchr(filep?filep:filename, '\\');
+    char *encfile;
+
+    if(file2)
+      filep = file2 + 1;
+    else if(filep)
+      filep++;
+    else
+      filep = filename;
+
+    /* URL encode the file name */
+    encfile = curl_easy_escape(curl, filep, 0 /* use strlen */);
+    if(encfile) {
+      char *urlbuffer;
+      if(ptr)
+        /* there is a trailing slash on the URL */
+        urlbuffer = aprintf("%s%s", url, encfile);
+      else
+        /* there is no trailing slash on the URL */
+        urlbuffer = aprintf("%s/%s", url, encfile);
+
+      curl_free(encfile);
+      Curl_safefree(url);
+
+      if(!urlbuffer)
+        return NULL;
+
+      url = urlbuffer; /* use our new URL instead! */
+    }
+    else
+      Curl_safefree(url);
+  }
+  curl_easy_cleanup(curl);
+  return url;
+}
+
+/* Extracts the name portion of the URL.
+ * Returns a pointer to a heap-allocated string or NULL if
+ * no name part, at location indicated by first argument.
+ */
+CURLcode get_url_file_name(char **filename, const char *url)
+{
+  const char *pc, *pc2;
+
+  *filename = NULL;
+
+  /* Find and get the remote file name */
+  pc = strstr(url, "://");
+  if(pc)
+    pc += 3;
+  else
+    pc = url;
+
+  pc2 = strrchr(pc, '\\');
+  pc = strrchr(pc, '/');
+  if(pc2 && (!pc || pc < pc2))
+    pc = pc2;
+
+  if(pc)
+    /* duplicate the string beyond the slash */
+    pc++;
+  else
+    /* no slash => empty string */
+    pc = "";
+
+  *filename = strdup(pc);
+  if(!*filename)
+    return CURLE_OUT_OF_MEMORY;
+
+#if defined(MSDOS) || defined(WIN32)
+  {
+    char *sanitized;
+    SANITIZEcode sc = sanitize_file_name(&sanitized, *filename, 0);
+    Curl_safefree(*filename);
+    if(sc)
+      return CURLE_URL_MALFORMAT;
+    *filename = sanitized;
+  }
+#endif /* MSDOS || WIN32 */
+
+  /* in case we built debug enabled, we allow an environment variable
+   * named CURL_TESTDIR to prefix the given file name to put it into a
+   * specific directory
+   */
+#ifdef DEBUGBUILD
+  {
+    char *tdir = curlx_getenv("CURL_TESTDIR");
+    if(tdir) {
+      char buffer[512]; /* suitably large */
+      msnprintf(buffer, sizeof(buffer), "%s/%s", tdir, *filename);
+      Curl_safefree(*filename);
+      *filename = strdup(buffer); /* clone the buffer */
+      curl_free(tdir);
+      if(!*filename)
+        return CURLE_OUT_OF_MEMORY;
+    }
+  }
+#endif
+
+  return CURLE_OK;
+}