X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/4729b6937b582a029147ba51298f5c300c5b1891..6d2c02560e5c0aa7cef83d02b26f193135b93e21:/src/src/header.c

diff --git a/src/src/header.c b/src/src/header.c
index 720446bff..898d8d5c4 100644
--- a/src/src/header.c
+++ b/src/src/header.c
@@ -2,8 +2,8 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
+/* Copyright (c) The Exim Maintainers 2020 - 2022 */
 /* Copyright (c) University of Cambridge 1995 - 2016 */
-/* Copyright (c) The Exim Maintainers 2020 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 
@@ -102,7 +102,7 @@ gstring gs;
 
 if (!header_last) return NULL;
 
-gs.s = buf = store_get(HEADER_ADD_BUFFER_SIZE, FALSE);
+gs.s = buf = store_get(HEADER_ADD_BUFFER_SIZE, GET_UNTAINTED);
 gs.size = HEADER_ADD_BUFFER_SIZE;
 gs.ptr = 0;
 
@@ -182,7 +182,7 @@ for (p = q = gs.s; *p; p = q)
     if (*(++q) != ' ' && *q != '\t') break;
     }
 
-  new = store_get(sizeof(header_line), FALSE);
+  new = store_get(sizeof(header_line), GET_UNTAINTED);
   new->text = string_copyn(p, q - p);
   new->slen = q - p;
   new->type = type;
@@ -371,7 +371,7 @@ static BOOL
 one_pattern_match(uschar *name, int slen, BOOL has_addresses, uschar *pattern)
 {
 BOOL yield = FALSE;
-const pcre *re = NULL;
+const pcre2_code *re = NULL;
 
 /* If the pattern is a regex, compile it. Bomb out if compiling fails; these
 patterns are all constructed internally and should be valid. */
@@ -419,10 +419,9 @@ for (header_line * h = header_list; !yield && h; h = h->next)
 
       /* Otherwise, test for the pattern; a non-regex must be an exact match */
 
-      yield = !re
-        ? (strcmpic(next, pattern) == 0)
-        : (pcre_exec(re, NULL, CS next, Ustrlen(next), 0, PCRE_EOPT, NULL, 0)
-          >= 0);
+      yield = re
+	? regex_match(re, next, -1, NULL)
+        : (strcmpic(next, pattern) == 0);
       }
     }
 
@@ -431,10 +430,9 @@ for (header_line * h = header_list; !yield && h; h = h->next)
 
   else
     {
-    yield = (re == NULL)?
-      (strstric(h->text, pattern, FALSE) != NULL)
-      :
-      (pcre_exec(re, NULL, CS h->text, h->slen, 0, PCRE_EOPT, NULL, 0) >= 0);
+    yield = re
+      ? regex_match(re, h->text, h->slen, NULL)
+      : (strstric(h->text, pattern, FALSE) != NULL);
     }
   }