[glib/wip/2-58-cve-2021-27219: 3/3] gwin32: Use gsize internally in g_wcsdup()

[Simon McVittie <smcv src gnome org>]

commit 7f308de341f2fd76d3f42f3e0e626683fef6ff0c
Author: Philip Withnall <pwithnall endlessos org>
Date:   Thu Feb 4 13:50:37 2021 +0000

    gwin32: Use gsize internally in g_wcsdup()
    
    This allows it to handle strings up to length `G_MAXSIZE` — previously
    it would overflow with such strings.
    
    Update the several copies of it identically.
    
    Adapted for GLib 2.58 by Simon McVittie.
    
    Signed-off-by: Philip Withnall <pwithnall endlessos org>
    Helps: #2319
    [Backport to 2.58 branch: g_wcsdup() existed in different places]
    Signed-off-by: Simon McVittie <smcv collabora com>

 gio/gwin32appinfo.c     | 2 +-
 gio/gwin32registrykey.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gio/gwin32appinfo.c b/gio/gwin32appinfo.c
index 9f335b370..2a0fe380d 100644
--- a/gio/gwin32appinfo.c
+++ b/gio/gwin32appinfo.c
@@ -472,7 +472,7 @@ g_wcsdup (const gunichar2 *str, gssize str_size)
       str_size = wcslen (str) + 1;
       str_size *= sizeof (gunichar2);
     }
-  return g_memdup (str, str_size);
+  return g_memdup2 (str, str_size);
 }
 
 #define URL_ASSOCIATIONS 
L"HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\Shell\\Associations\\UrlAssociations\\"
diff --git a/gio/gwin32registrykey.c b/gio/gwin32registrykey.c
index 619fd48af..1c5526315 100644
--- a/gio/gwin32registrykey.c
+++ b/gio/gwin32registrykey.c
@@ -136,7 +136,7 @@ g_wcsdup (const gunichar2 *str,
       str_size = wcslen (str) + 1;
       str_size *= sizeof (gunichar2);
     }
-  return g_memdup (str, str_size);
+  return g_memdup2 (str, str_size);
 }
 
 /**