utils

commit: 57f8ff618f6c3d40d18daed16da4e739c3214661
parent 96e9072e6f8b9c253f06590d4efd18f458a47c05
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Fri, 22 Apr 2022 08:48:26 +0200

bin/link: New util

Diffstat:
A
bin/link.1
28
++++++++++++++++++++++++++++
A
bin/link.c
25
+++++++++++++++++++++++++
M
coreutils.txt
2
+-
M
test-bin/Kyuafile
1
+
A
test-bin/link
32
++++++++++++++++++++++++++++++++

5 files changed, 87 insertions(+), 1 deletion(-)
diff --git a/bin/link.1 b/bin/link.1
@@ -0,0 +1,28 @@
+.\" 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
+.Dd 2022-04-22
+.Dt LINK 1
+.Os
+.Sh NAME
+.Nm link
+.Nd call
+.Xr link 3
+function
+.Sh SYNOPSIS
+.Nm
+.Ar reference
+.Ar destination
+.Sh DESCRIPTION
+.Nm
+will call
+.Xr link 3
+with
+.Ar reference
+and
+.Ar destination ,
+returning an error message in case of failure.
+.Sh EXIT STATUS
+.Ex -std
+.Sh AUTHORS
+.An Haelwenn (lanodan) Monnier Aq Mt contact@hacktivis.me
diff --git a/bin/link.c b/bin/link.c
@@ -0,0 +1,25 @@
+// 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
+
+#define _POSIX_C_SOURCE 200809L
+#include <stdio.h>  /* perror, fprintf */
+#include <unistd.h> /* link */
+
+int
+main(int argc, char *argv[])
+{
+	if(argc != 3)
+	{
+		fprintf(stderr, "usage: link <reference> <destination>\n");
+		return 1;
+	}
+
+	if(link(argv[1], argv[2]) != 0)
+	{
+		perror("link");
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/coreutils.txt b/coreutils.txt
@@ -36,7 +36,7 @@ hostid: No, get a better id(ea)
 id: Done
 install: No?
 join: ?
-link: Todo
+link: Done
 ln: Todo
 logname: No, POSIX
 ls: ?
diff --git a/test-bin/Kyuafile b/test-bin/Kyuafile
@@ -17,6 +17,7 @@ atf_test_program{name="errno", required_files=basedir.."/bin/errno", timeout=1}
 atf_test_program{name="false", required_files=basedir.."/bin/false", timeout=1}
 atf_test_program{name="humanize", required_files=basedir.."/bin/humanize", timeout=1}
 atf_test_program{name="id", required_files=basedir.."/bin/id", timeout=1}
+atf_test_program{name="link", required_files=basedir.."/bin/link", timeout=1}
 atf_test_program{name="lolcat", required_files=basedir.."/bin/lolcat", timeout=1}
 atf_test_program{name="mdate", required_files=basedir.."/bin/mdate", timeout=1}
 atf_test_program{name="pwd", required_files=basedir.."/bin/pwd", timeout=1}
diff --git a/test-bin/link b/test-bin/link
@@ -0,0 +1,32 @@
+#!/usr/bin/env atf-sh
+atf_test_case empty
+empty_body() {
+	atf_check -s exit:1 -e "inline:usage: link <reference> <destination>\n" ../bin/link
+}
+
+atf_test_case basic cleanup
+basic_body() {
+	touch foo
+
+	atf_check ../bin/link foo bar
+	atf_check -o "inline:0 foo\n0 bar\n0 total\n" wc -c foo bar
+
+	echo hello >> foo
+	atf_check -o "inline: 6 foo\n 6 bar\n12 total\n" wc -c foo bar
+}
+basic_cleanup() {
+	atf_check rm -f foo bar
+}
+
+atf_test_case enoent
+enoent_body() {
+	atf_check -s exit:1 -e 'inline:link: No such file or directory\n' ../bin/link /var/empty/e/no/ent enoent_foo
+	atf_check -s exit:1 -e 'inline:link: No such file or directory\n' ../bin/link enoent_bar /var/empty/e/no/ent
+}
+
+atf_init_test_cases() {
+	cd "$(atf_get_srcdir)" || exit 1
+	atf_add_test_case empty
+	atf_add_test_case basic
+	atf_add_test_case enoent
+}