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authorTodd C. Miller <millert@cvs.openbsd.org>2020-07-20 18:55:16 +0000
committerTodd C. Miller <millert@cvs.openbsd.org>2020-07-20 18:55:16 +0000
commit79d7c51d638887c3eb7157f2be65ebaab49fe34c (patch)
treee968107daeeeb2179a9a9fe9afa83e2aac30d39c
parente6511ff6827474f7567b50e107a187c0936ad1e6 (diff)
In closeall(), skip stdin and flush std{err,out} instead of closing.
Otherwise awk could fclose(stdin) twice (it may appear more than once) and closing stderr means awk cannot report errors closing other streams. OK tim@
-rw-r--r--usr.bin/awk/run.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/usr.bin/awk/run.c b/usr.bin/awk/run.c
index 4ba6c79eac1..a826182672e 100644
--- a/usr.bin/awk/run.c
+++ b/usr.bin/awk/run.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: run.c,v 1.63 2020/07/02 19:06:22 millert Exp $ */
+/* $OpenBSD: run.c,v 1.64 2020/07/20 18:55:15 millert Exp $ */
/****************************************************************
Copyright (C) Lucent Technologies 1997
All Rights Reserved
@@ -1977,8 +1977,12 @@ void closeall(void)
continue;
if (ferror(files[i].fp))
FATAL( "i/o error occurred on %s", files[i].fname );
+ if (files[i].fp == stdin)
+ continue;
if (files[i].mode == '|' || files[i].mode == LE)
stat = pclose(files[i].fp) == -1;
+ else if (files[i].fp == stdout || files[i].fp == stderr)
+ stat = fflush(files[i].fp) == EOF;
else
stat = fclose(files[i].fp) == EOF;
if (stat)