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	improve stream handling of read and write errors - json2tsv - JSON to TSV conve…
	git clone git://git.codemadness.org/json2tsv
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	---
	commit ca7aea61b3a593c782c7da48ec3e6552b47a698e
	parent eb921bbad3f1120270014eaad9b2cba8a2958130
	Author: Hiltjo Posthuma <[email protected]>
	Date: Sat, 19 Mar 2022 13:10:53 +0100

	improve stream handling of read and write errors

	Diffstat:
	M json2tsv.1 \| 4 ++--
	M json2tsv.c \| 14 ++++++++++++++

	2 files changed, 16 insertions(+), 2 deletions(-)
	---
	diff --git a/json2tsv.1 b/json2tsv.1
	@@ -1,4 +1,4 @@
	-.Dd February 20, 2022
	+.Dd March 19, 2022
	.Dt JSON2TSV 1
	.Os
	.Sh NAME
	@@ -101,7 +101,7 @@ s for string
	.Sh EXIT STATUS
	.Nm
	exits with the exit status 0 on success, 1 on a parse error, 2 when out of
	-memory or 3 with an usage error.
	+memory or a read/write error or 3 with an usage error.
	.Sh EXAMPLES
	.Bd -literal
	json2tsv < input.json \| awk -F '\\t' '$1 == ".url" { print $3 }'
	diff --git a/json2tsv.c b/json2tsv.c
	@@ -110,6 +110,11 @@ processnode(struct json_node *nodes, size_t depth, const c…
	putchar(fs);
	printvalue(value);
	putchar(rs);
	+
	+ if (ferror(stdout)) {
	+ fprintf(stderr, "write error: <stdout>\n");
	+ exit(2);
	+ }
	}

	int
	@@ -217,5 +222,14 @@ nextarg:;
	return 1;
	}

	+ if (ferror(stdin)) {
	+ fprintf(stderr, "read error: <stdin>\n");
	+ return 2;
	+ }
	+ if (fflush(stdout) \|\| ferror(stdout)) {
	+ fprintf(stderr, "write error: <stdout>\n");
	+ return 2;
	+ }
	+
	return 0;
	}