utils

commit: 76d270ac1f8eb8981aae33047387786969e89047
parent 21dc297b514fc1b20c99184095c8625adf6c90a3
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Tue,  1 Mar 2022 19:59:47 +0100

bin/errno: New

Diffstat:
A
bin/errno.c
31
+++++++++++++++++++++++++++++++
M
test-bin/Kyuafile
1
+
A
test-bin/errno
17
+++++++++++++++++

3 files changed, 49 insertions(+), 0 deletions(-)
diff --git a/bin/errno.c b/bin/errno.c
@@ -0,0 +1,31 @@
+// Collection of Unix tools, comparable to coreutils
+// Copyright 2017-2022 Haelwenn (lanodan) Monnier <contact+utils@hacktivis.me>
+// SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
+
+#include <errno.h>  // errno
+#include <stdio.h>  // puts, perror
+#include <stdlib.h> // strtol
+#include <string.h> // strerror
+
+int
+main(int argc, char *argv[])
+{
+	if(argc != 2)
+	{
+		puts("usage: errno <number>");
+		return 1;
+	}
+
+	errno = 0;
+
+	int err = (int)(strtol(argv[1], NULL, 10));
+	if(errno != 0)
+	{
+		perror("errno: strtol");
+		return 1;
+	}
+
+	puts(strerror(err));
+
+	return 0;
+}
diff --git a/test-bin/Kyuafile b/test-bin/Kyuafile
@@ -13,6 +13,7 @@ atf_test_program{name="del", required_files=basedir.."/bin/del"}
 atf_test_program{name="dirname", required_files=basedir.."/bin/dirname"}
 atf_test_program{name="echo", required_files=basedir.."/bin/echo"}
 atf_test_program{name="env", required_files=basedir.."/bin/env"}
+atf_test_program{name="errno", required_files=basedir.."/bin/errno"}
 atf_test_program{name="false", required_files=basedir.."/bin/false"}
 atf_test_program{name="humanize", required_files=basedir.."/bin/humanize"}
 atf_test_program{name="mdate", required_files=basedir.."/bin/mdate"}
diff --git a/test-bin/errno b/test-bin/errno
@@ -0,0 +1,17 @@
+#!/usr/bin/env atf-sh
+atf_test_case simple
+simple_body() {
+	atf_check -o "inline:Success\n" ../bin/errno 0
+	atf_check -o "inline:Operation not permitted\n" ../bin/errno 1
+}
+
+atf_test_case noargs
+noargs_body() {
+	atf_check -s exit:1 -o "inline:usage: errno <number>\n" ../bin/errno
+}
+
+atf_init_test_cases() {
+	cd "$(atf_get_srcdir)" || exit 1
+	atf_add_test_case simple
+	atf_add_test_case noargs
+}