From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Tue, 20 Sep 2016 13:04:32 +0000 (+0100)
Subject: [Fix] Use memmove for overlapping regions
X-Git-Tag: 1.4.0~404
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=9ac183e4ae31c1a5637dc371fbfff53a9adb2531;p=rspamd.git

[Fix] Use memmove for overlapping regions

Issue: #961
MFH: true
---

diff --git a/src/libserver/html.c b/src/libserver/html.c
index b121006bb..af91ab39c 100644
--- a/src/libserver/html.c
+++ b/src/libserver/html.c
@@ -691,7 +691,7 @@ rspamd_html_decode_entitles_inplace (gchar *s, guint len)
 						t += rep_len;
 					}
 					else {
-						memcpy (t, e, h - e);
+						memmove (t, e, h - e);
 						t += h - e;
 					}
 				}
@@ -713,7 +713,7 @@ rspamd_html_decode_entitles_inplace (gchar *s, guint len)
 					}
 					if (end_ptr != NULL && *end_ptr != '\0') {
 						/* Skip undecoded */
-						memcpy (t, e, h - e);
+						memmove (t, e, h - e);
 						t += h - e;
 					}
 					else {
@@ -736,7 +736,7 @@ rspamd_html_decode_entitles_inplace (gchar *s, guint len)
 								t += g_unichar_to_utf8 (val, t);
 							}
 							else {
-								memcpy (t, e, h - e);
+								memmove (t, e, h - e);
 								t += h - e;
 							}
 						}