From: Paul Eggert <eggert@cs.ucla.edu>
Date: Fri, 22 Sep 2023 02:23:56 +0000 (-0700)
Subject: wc: avoid undefined conversion state
X-Git-Tag: v9.5~152
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb51f74ff61d23dd6067e82833aac0ca62312261;p=thirdparty%2Fcoreutils.git

wc: avoid undefined conversion state

* src/wc.c (wc): When mbrtowc returns (size_t) -1, zero the
conversion state, since POSIX says it’s undefined.
---

diff --git a/src/wc.c b/src/wc.c
index 1753acfc16..fdbeed7393 100644
--- a/src/wc.c
+++ b/src/wc.c
@@ -519,6 +519,8 @@ wc (int fd, char const *file_x, struct fstatus *fstatus, off_t current_pos)
                          character (that is, chars is not incremented).  */
                       p++;
                       bytes_read--;
+                      mbszero (&state);
+                      in_shift = false;
                       continue;
                     }
                   if (mbsinit (&state))