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-rw-r--r--lisp/net/imap.el12
1 files changed, 12 insertions, 0 deletions
diff --git a/lisp/net/imap.el b/lisp/net/imap.el
index 85af73972fe..40e41d79de7 100644
--- a/lisp/net/imap.el
+++ b/lisp/net/imap.el
@@ -1735,6 +1735,18 @@ is non-nil return these properties."
(concat "UID STORE " articles
" +FLAGS" (if silent ".SILENT") " (" flags ")"))))))
+;; Cf. http://thread.gmane.org/gmane.emacs.gnus.general/65317/focus=65343
+;; Signal an error if we'd get an integer overflow.
+;;
+;; FIXME: Identify relevant calls to `string-to-number' and replace them with
+;; `imap-string-to-integer'.
+(defun imap-string-to-integer (string &optional base)
+ (let ((number (string-to-number string base)))
+ (if (> number most-positive-fixnum)
+ (error
+ (format "String %s cannot be converted to a lisp integer" number))
+ number)))
+
(defun imap-message-copyuid-1 (mailbox)
(if (imap-capability 'UIDPLUS)
(list (nth 0 (imap-mailbox-get-1 'copyuid mailbox))