From dd7fbdbc3bb0445050fc8045b4e015532badf4fc Mon Sep 17 00:00:00 2001
From: alex <alex@infiniteadaptability.org>
Date: Wed, 11 May 2022 23:04:58 -0700
Subject: [PATCH] ...

---
 Makefile.am  |  6 ++++++
 configure.ac | 41 +++++++++++++++++++++++++++++++++++++++++
 inc/main.h   |  1 +
 src/main.c   | 21 ++++++++++++++++++++-
 4 files changed, 68 insertions(+), 1 deletion(-)

diff --git a/Makefile.am b/Makefile.am
index c69add9..1634c27 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2,6 +2,12 @@ AM_CPPFLAGS = \
 	-Wall \
 	-Werror
 
+if ENABLE_DEBUG
+else
+AM_CPPFLAGS += \
+	-DNDEBUG
+endif
+
 bin_PROGRAMS = cold
 
 cold_SOURCES = \
diff --git a/configure.ac b/configure.ac
index c486633..82d2bd2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9,6 +9,47 @@ AM_INIT_AUTOMAKE([foreign subdir-objects -Wall -Werror])
 AC_CONFIG_SRCDIR([src/main.c])
 AC_CONFIG_HEADERS([inc/config.h])
 
+AC_ARG_ENABLE([debug],
+  [AS_HELP_STRING([--enable-debug],
+  [enable debugging])],
+  [enable_debug=$enableval],
+  [enable_debug=no])
+
+AC_ARG_ENABLE([memcheck],
+  [AS_HELP_STRING([--disable-memcheck],
+  [disable memcheck with valgrind (enabled by default)])],
+  [enable_memcheck=$enableval],
+  [enable_memcheck=yes])
+
+AC_PATH_PROG([VALGRIND], [valgrind])
+AM_CONDITIONAL([HAVE_VALGRIND], [test -n "$VALGRIND"])
+
+AC_MSG_CHECKING([if debugging])
+if test x$enable_debug != xno; then
+	AC_MSG_RESULT(yes)
+	CFLAGS="-ggdb3 -O0"
+else
+	AC_MSG_RESULT(no)
+fi
+
+AM_CONDITIONAL([ENABLE_DEBUG],[test x$enable_debug != xno])
+
+dnl disable memcheck if valgrind not found
+if test "x$enable_memcheck" != "xno"; then
+  if test -z "$VALGRIND"; then
+    enable_memcheck=no
+  fi
+fi
+
+AC_MSG_CHECKING([if memcheck should be enabled])
+if test x$enable_memcheck != xno; then
+  AC_MSG_RESULT(yes)
+else
+  AC_MSG_RESULT(no)
+fi
+
+AM_CONDITIONAL([ENABLE_MEMCHECK],[test x$enable_memcheck = xyes])
+
 # Checks for programs.
 AC_PROG_CC
 
diff --git a/inc/main.h b/inc/main.h
index b073e2d..b3ec90b 100644
--- a/inc/main.h
+++ b/inc/main.h
@@ -1,6 +1,7 @@
 #ifndef __MAIN_H_
 #define __MAIN_H_
 
+#include<stdio.h>
 #include<stdlib.h>
 
 #include<libudev.h>
diff --git a/src/main.c b/src/main.c
index c38e52a..3eeea7e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,10 +1,29 @@
 #include<main.h>
 
 int main(int argc, char **argv) {
-	struct udev *monitor;
+	struct udev *monitor; //, *dev;
+	struct udev_enumerate *enumerate;
+	struct udev_list_entry *devices, *dev_list_entry;
+	const char *path;
 
 	monitor = udev_new();
 	if(NULL==monitor) { return EXIT_FAILURE; }
+	
+	enumerate = udev_enumerate_new(monitor);
+
+	udev_enumerate_add_match_subsystem(enumerate, "usb");
+	udev_enumerate_add_nomatch_sysattr(enumerate, "bDeviceClass", "09");
+	udev_enumerate_add_nomatch_sysattr(enumerate, "bInterfaceNumber", NULL);
+	udev_enumerate_scan_devices(enumerate);
+	
+	devices = udev_enumerate_get_list_entry(enumerate);
+	
+	udev_list_entry_foreach(dev_list_entry, devices) {
+		path = udev_list_entry_get_name(dev_list_entry);
+//		dev = udev_device_new_from_syspath(monitor, path);
+
+		printf("found: %s\n",path);
+	}
 
 	udev_unref(monitor);
 
-- 
2.30.2