utils-std

commit: 3026b369297cd6bdbd038d82d90c2fe06bcf5eda
parent 55151a4cd953904bea4c4ed43eab61c92b0cd33d
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Fri, 26 Jul 2024 15:14:55 +0200

configure.d/getopt_long.c: add

Diffstat:
M
configure
2
++
A
configure.d/getopt_long.c
45
+++++++++++++++++++++++++++++++++++++++++++++

2 files changed, 47 insertions(+), 0 deletions(-)
diff --git a/configure b/configure
@@ -236,6 +236,8 @@ if ! check_conftest configure.d/getentropy.c; then
 	target_filter="${target_filter} -e cmd/mktemp."
 fi
 
+check_conftest configure.d/getopt_long.c && CFLAGS="${CFLAGS} -DHAS_GETOPT_LONG"
+
 echo
 
 ## Configuration write
diff --git a/configure.d/getopt_long.c b/configure.d/getopt_long.c
@@ -0,0 +1,45 @@
+// utils-std: Collection of commonly available Unix tools
+// SPDX-FileCopyrightText: 2017 Haelwenn (lanodan) Monnier <contact+utils@hacktivis.me>
+// SPDX-License-Identifier: MPL-2.0
+
+#define _POSIX_C_SOURCE 202405L
+
+#include <getopt.h> // getopt_long
+#include <stdio.h>  // puts
+#include <stdlib.h> // abort
+
+int
+main(int argc, char *argv[])
+{
+	int optidx = 0;
+	char *file = NULL;
+
+	// clang-format off
+	static struct option opts[] = {
+		{"help", no_argument, 0, 'h'},
+		{"file", required_argument, 0, 'f'},
+		{0, 0, 0, 0}
+	};
+	// clang-format on
+
+	int c = -1;
+	while((c = getopt_long(argc, argv, ":hf:", opts, &optidx)) != -1)
+	{
+		switch(c)
+		{
+		case 'h':
+			puts("Help!");
+			return 1;
+			break;
+		case 'f':
+			file = optarg;
+			break;
+		default:
+			abort();
+		}
+	}
+
+	puts(file);
+
+	return 0;
+}