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fold: exit promptly upon write errors

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* NEWS: Mention the improvement.
* src/fold.c (fold_file): Check for write errors
after each buffer read from stdin.
* tests/misc/write-errors.sh: Add test cases.
This commit is contained in:
Pádraig Brady
2025-09-16 13:07:35 +01:00
parent a6e9807eb9
commit 10459ca7ed
3 changed files with 10 additions and 1 deletions
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tests/misc/write-errors.sh
+3 -1
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@@ -34,7 +34,9 @@ dd if=/dev/zero
expand /dev/zero
factor --version; yes 1 | factor
# TODO: fmt /dev/zero
# TODO: fold -b /dev/zero
fold /dev/zero
fold -b /dev/zero
fold -c /dev/zero
head -z -n-1 /dev/zero
join -a 1 -z /dev/zero /dev/null
# TODO: nl --version; yes | nl