From: Jeremy Harris <jgh146exb@wizmail.org>
Date: Wed, 30 Sep 2015 15:23:42 +0000 (+0100)
Subject: Increase verbosity of (panic)log message for string_sprintf overflow
X-Git-Tag: exim-4_87_RC1~84
X-Git-Url: https://vcs.fsf.org/?a=commitdiff_plain;h=7e09992e0fb2d70750a686939636cf40f2a06ae3;p=exim.git

Increase verbosity of (panic)log message for string_sprintf overflow
---

diff --git a/src/src/string.c b/src/src/string.c
index a3fbc4ea5..b76b0abbc 100644
--- a/src/src/string.c
+++ b/src/src/string.c
@@ -717,8 +717,9 @@ uschar buffer[STRING_SPRINTF_BUFFER_SIZE];
 va_start(ap, format);
 if (!string_vformat(buffer, sizeof(buffer), format, ap))
   log_write(0, LOG_MAIN|LOG_PANIC_DIE,
-    "string_sprintf expansion was longer than " SIZE_T_FMT " (%s)",
-    sizeof(buffer), format);
+    "string_sprintf expansion was longer than " SIZE_T_FMT
+    "; format string was (%s)\nexpansion started '%.32s'",
+    sizeof(buffer), format, buffer);
 va_end(ap);
 return string_copy(buffer);
 }