From aa148554fced7bba734e8c1ab9ac616a69955ca3 Mon Sep 17 00:00:00 2001
From: "Thomas \"Cakeisalie5\" Touhey" <thomas@touhey.fr>
Date: Thu, 9 Feb 2017 18:05:12 +0100
Subject: [PATCH] Added 'list-devices' menu.

---
 src/p7/args.c         | 10 ++++++++++
 src/p7/list_devices.c | 44 +++++++++++++++++++++++++++++++++++++++++++
 src/p7/main.h         |  3 +++
 3 files changed, 57 insertions(+)
 create mode 100644 src/p7/list_devices.c

diff --git a/src/p7/args.c b/src/p7/args.c
index f9fc181..5905852 100644
--- a/src/p7/args.c
+++ b/src/p7/args.c
@@ -136,6 +136,12 @@ static const char help_info[] =
 "Dump information about the calculator.\n"
 FOOT;
 
+/* List serial devices */
+static const char help_listcom[] =
+"Usage: " QUOTE(BIN) " list-devices\n"
+"List serial devices.\n"
+FOOT;
+
 /* ************************************************************************** */
 /*  Main function                                                             */
 /* ************************************************************************** */
@@ -255,6 +261,10 @@ int parse_args(int ac, char **av, args_t *args)
 	} else if (!strcmp(aav[0], "version")) {
 		puts(version_message);
 		return (0);
+	} else if (!strcmp(aav[0], "list-devices")) {
+		if (help || aac > 1) puts(help_listcom);
+		else list_devices();
+		return (0);
 	} else if (!strcmp(aav[0], "info")) {
 		sub_init(info, 0)
 	} else if (!strcmp(aav[0], "list") || !strcmp(aav[0], "ls")) {
diff --git a/src/p7/list_devices.c b/src/p7/list_devices.c
new file mode 100644
index 0000000..57f977f
--- /dev/null
+++ b/src/p7/list_devices.c
@@ -0,0 +1,44 @@
+/* ************************************************************************** */
+/*                                       _____           _                    */
+/*  p7/list_devices.c                   |_   _|__  _   _| |__   ___ _   _     */
+/*  | Project: libp7                      | |/ _ \| | | | '_ \ / _ \ | | |    */
+/*                                        | | (_) | |_| | | | |  __/ |_| |    */
+/*  By: thomas <thomas@touhey.fr>         |_|\___/ \__,_|_| |_|\___|\__, |.fr */
+/*  Last updated: 2017/02/09 17:55:40                               |___/     */
+/*                                                                            */
+/* ************************************************************************** */
+#include "main.h"
+
+/**
+ *	list_a_device:
+ *	List one serial device.
+ *
+ *	@arg	cookie		the cookie (unused)
+ *	@arg	path		the path.
+ */
+
+static int initialized = 0;
+static void list_a_device(void *cookie, const char *path)
+{
+	(void)cookie;
+	if (!initialized) {
+		printf("Available devices:\n");
+		initialized = 1;
+	}
+	printf("- %s\n", path);
+}
+
+/**
+ *	list_devices:
+ *	List serial devices.
+ *
+ *	@return		the program return code.
+ */
+
+int list_devices(void)
+{
+	p7_comlist(list_a_device, NULL);
+	if (!initialized)
+		fprintf(stderr, "Could not find any devices.\n");
+	return (0);
+}
diff --git a/src/p7/main.h b/src/p7/main.h
index 6ad30c5..f4470d9 100644
--- a/src/p7/main.h
+++ b/src/p7/main.h
@@ -42,6 +42,9 @@ typedef struct {
 /* Parsing function */
 int parse_args(int ac, char **av, args_t *args);
 
+/* List devices function */
+int list_devices(void);
+
 /* Dumping function */
 int dump(p7_handle_t *handle);