feat: create check_port binary for windows

Signed-off-by: Frederic Pillon <[email protected]>

Author: fpistm

src/check_port/Makefile

@@ -0,0 +1,22 @@
+CC = gcc
+SRC = $(wildcard *.c)
+LIBSRC = $(wildcard ../libserialport/*.c)
+OBJ = $(SRC:.c=.o) $(LIBSRC:.c=.o)
+CFLAGS = -DLIBSERIALPORT_MSBUILD -Wall -I../libserialport
+LDFLAGS = -lsetupapi
+DEST = ../../win
+BIN = $(SRC:.c=)
+
+.PHONY: all clean
+
+all: $(BIN) install
+
+$(BIN): $(OBJ)
+	$(CC) -o $@ $^ $(LDFLAGS)
+
+install: $(BIN)
+	@echo "$@ $^..."
+	@mv $(BIN) $(DEST)/
+
+clean:
+	rm -f $(OBJ) $(DEST)/$(BIN)

src/check_port/check_port.c

@@ -0,0 +1,69 @@
+#include <libserialport.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+/* Example of how to get a list of serial ports on the system.
+ *
+ * This example file is released to the public domain. */
+
+int main(int argc, char **argv)
+{
+  /* A pointer to a null-terminated array of pointers to
+   * struct sp_port, which will contain the ports found.*/
+  struct sp_port **port_list;
+  char *search_name = NULL;
+  bool found = false;
+  bool search = false;
+  if (argc>2)
+  {
+    printf("Usage %s <optional serial port to search>\n", argv[0]);
+    return -1;
+  }
+  if (argc == 2) {
+    search_name = argv[1];
+    search = true;
+  }
+  if (!search) {
+    printf("Getting port list.\n");
+  }
+  /* Call sp_list_ports() to get the ports. The port_list
+   * pointer will be updated to refer to the array created. */
+  enum sp_return result = sp_list_ports(&port_list);
+
+  if (result != SP_OK) {
+    printf("sp_list_ports() failed!\n");
+    return -1;
+  }
+
+  /* Iterate through the ports. When port_list[i] is NULL
+   * this indicates the end of the list. */
+  int i;
+  for (i = 0; port_list[i] != NULL; i++) {
+    struct sp_port *port = port_list[i];
+
+    /* Get the name of the port. */
+    char *port_name = sp_get_port_name(port);
+    if (!search) {
+      printf("Found port: %s\n", port_name);
+    } else {
+      if (strcmp( search_name, port_name ) == 0) {
+        found = true;
+        break;
+      }
+    }
+  }
+  if (!search){
+    printf("Found %d ports.\n", i);
+    printf("Freeing port list.\n");
+  }
+
+  /* Free the array created by sp_list_ports(). */
+  sp_free_port_list(port_list);
+
+  /* Note that this will also free all the sp_port structures
+   * it points to. If you want to keep one of them (e.g. to
+   * use that port in the rest of your program), take a copy
+   * of it first using sp_copy_port(). */
+
+  return (search) ? !found : 0;
+}