Tentative implementation using golang and CGO bindings

.gitignore

@@ -2,3 +2,4 @@ compile.sh
 dfu-util-*/*
 dfu-discovery
 *.o
+dfu-util_*.c

compile.sh

@@ -6,12 +6,10 @@ then
 else
 	echo "Downloading $DFU_UTIL..."
 	curl https://dfu-util.sourceforge.net/releases/$DFU_UTIL.tar.gz -s | tar xz
-fi
 
-DEFINES="-DHAVE_UNISTD_H -DHAVE_NANOSLEEP"
-INCLUDES="-I. -Idfu-util-0.11/src -I/usr/include/libusb-1.0"
-gcc -c dfu-util-0.11/src/dfuse_mem.c $INCLUDES $DEFINES
-gcc -c dfu-util-0.11/src/dfu_util.c  $INCLUDES $DEFINES
-gcc -c dfu-util-0.11/src/quirks.c    $INCLUDES $DEFINES
-g++ -c main.cpp                      $INCLUDES $DEFINES
-g++ dfu_util.o quirks.o dfuse_mem.o main.o -lusb-1.0 -o dfu-discovery
+	cp dfu-util-0.11/src/dfuse_mem.c dfu-util_dfuse_mem.c
+	cp dfu-util-0.11/src/dfu_util.c dfu-util_dfu_util.c
+	cp dfu-util-0.11/src/quirks.c dfu-util_quirks.c
+	# for some reason quirks.c has the exec flag set
+	chmod -x dfu-util_quirks.c
+fi

err.h

@@ -0,0 +1,20 @@
+
+/*
+// The original macros are defined as follows:
+# define warnx(...) do {\
+    fprintf(stderr, __VA_ARGS__);\
+    fprintf(stderr, "\n");\ } while (0)
+# define warn(...) do {\
+    fprintf(stderr, "%s: ", strerror(errno));\
+    warnx(__VA_ARGS__); } while (0)
+*/
+// No-OP: do not report any warning
+# define warnx(...)      do { } while(0)
+# define warn(...)       do { } while(0)
+
+# define errx(eval, ...) do {\
+    warnx(__VA_ARGS__);\
+    exit(eval); } while (0)
+# define err(eval, ...) do {\
+    warn(__VA_ARGS__);\
+    exit(eval); } while (0)

go.mod

@@ -0,0 +1,13 @@
+module github.com/arduino/dfu-discovery
+
+go 1.19
+
+require (
+	github.com/arduino/go-properties-orderedmap v1.7.1
+	github.com/arduino/pluggable-discovery-protocol-handler/v2 v2.1.1
+)
+
+require (
+	github.com/arduino/go-paths-helper v1.8.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+)