File 0001-possibly-truncate-pathname-components.patch of Package wget.36152

--- wget-1.20.3/src/url.c	2019-04-01 20:11:12.000000000 +0200
+++ wget-1.20.3-new/src/url.c	2024-10-23 17:51:42.463169213 +0200
@@ -1463,6 +1463,7 @@ append_uri_pathel (const char *b, const
 {
   const char *p;
   int quoted, outlen;
+  int max_length;
 
   int mask;
   if (opt.restrict_files_os == restrict_unix)
@@ -1503,6 +1504,18 @@ append_uri_pathel (const char *b, const
      string length.  Each quoted char introduces two additional
      characters in the string, hence 2*quoted.  */
   outlen = (e - b) + (2 * quoted);
+# ifdef WINDOWS
+  max_length = MAX_PATH;
+# else
+  max_length = get_max_length(dest->base, dest->tail, _PC_NAME_MAX);
+# endif
+  max_length -= CHOMP_BUFFER;
+  if (max_length > 0 && outlen > max_length)
+    {
+      logprintf (LOG_NOTQUIET, "The destination name is too long (%d), reducing to %d\n", outlen, max_length);
+
+      outlen = max_length;
+    }
   GROW (dest, outlen);
 
   if (!quoted)
@@ -1514,19 +1527,29 @@ append_uri_pathel (const char *b, const
   else
     {
       char *q = TAIL (dest);
-      for (p = b; p < e; p++)
+      int i;
+
+      for (i = 0, p = b; p < e; p++)
         {
           if (!FILE_CHAR_TEST (*p, mask))
-            *q++ = *p;
-          else
+	          {
+	            if (i == outlen)
+	              break;
+	            *q++ = *p;
+	            i++;
+	          }
+          else if (i + 3 > outlen)
+	          break;
+	        else
             {
               unsigned char ch = *p;
               *q++ = '%';
               *q++ = XNUM_TO_DIGIT (ch >> 4);
               *q++ = XNUM_TO_DIGIT (ch & 0xf);
+              i += 3;
             }
         }
-      assert (q - TAIL (dest) == outlen);
+      assert (q - TAIL (dest) <= outlen);
     }
 
   /* Perform inline case transformation if required.  */
@@ -1686,7 +1709,6 @@ url_file_name (const struct url *u, char
   const char *u_file;
   char *fname, *unique, *fname_len_check;
   const char *index_filename = "index.html"; /* The default index file is index.html */
-  size_t max_length;
 
   fnres.base = NULL;
   fnres.size = 0;
@@ -1780,41 +1802,8 @@ url_file_name (const struct url *u, char
   temp_fnres.size = 0;
   temp_fnres.tail = 0;
   append_string (fname, &temp_fnres);
-  xfree (fname);
-
-  /* Check that the length of the file name is acceptable. */
-#ifdef WINDOWS
-  if (MAX_PATH > (fnres.tail + CHOMP_BUFFER + 2))
-    {
-      max_length = MAX_PATH - (fnres.tail + CHOMP_BUFFER + 2);
-      /* FIXME: In Windows a filename is usually limited to 255 characters.
-      To really be accurate you could call GetVolumeInformation() to get
-      lpMaximumComponentLength
-      */
-      if (max_length > 255)
-        {
-          max_length = 255;
-        }
-    }
-  else
-    {
-      max_length = 0;
-    }
-#else
-  max_length = get_max_length (fnres.base, fnres.tail, _PC_NAME_MAX) - CHOMP_BUFFER;
-#endif
-  if (max_length > 0 && strlen (temp_fnres.base) > max_length)
-    {
-      logprintf (LOG_NOTQUIET, "The name is too long, %lu chars total.\n",
-          (unsigned long) strlen (temp_fnres.base));
-      logprintf (LOG_NOTQUIET, "Trying to shorten...\n");
-
-      /* Shorten the file name. */
-      temp_fnres.base[max_length] = '\0';
-
-      logprintf (LOG_NOTQUIET, "New name is %s.\n", temp_fnres.base);
-    }
 
+  xfree (fname);
   xfree (fname_len_check);
 
   /* The filename has already been 'cleaned' by append_uri_pathel() above.  So,