From: Pali Rohár <pali@kernel.org>
Date: Sun, 27 Feb 2022 23:06:00 +0000 (+0100)
Subject: lspci: Fix handling of truncated lines for msvcrt.dll
X-Git-Tag: v3.8.0~10
X-Git-Url: http://mj.ucw.cz/gitweb/?a=commitdiff_plain;h=7eb8b9473317562e0b66bd3e8c467e127d88dac8;p=pciutils.git

lspci: Fix handling of truncated lines for msvcrt.dll

msvcrt.dll's vsnprintf() implementation does not fill terminating null byte
when overflow occurs and buffer size is returned.
---

diff --git a/ls-tree.c b/ls-tree.c
index e845f66..cc65ac4 100644
--- a/ls-tree.c
+++ b/ls-tree.c
@@ -239,7 +239,11 @@ tree_printf(char *line, char *p, char *fmt, ...)
       p += space;
     }
   else if (res >= space)
-    p += space;
+    {
+      /* Ancient C libraries do not truncate the output properly. */
+      *(p+space-1) = 0;
+      p += space;
+    }
   else
     p += res;