tool: add skeleton

Author: kaniini

Makefile

@@ -1,3 +1,5 @@
-SUBDIRS = libecdsaauth
+SUBDIRS = libecdsaauth tool
+
+tool: libecdsaauth
 
 include buildsys.mk

tool/Makefile

@@ -0,0 +1,5 @@
+PROG = ecdsatool
+
+SRCS = main.c
+
+include ../buildsys.mk

tool/main.c

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2013 William Pitcock <[email protected]>.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "tool-applet.h"
+
+static tool_applet_t tool_applets[] = {
+	{NULL, NULL}
+};
+
+static inline tool_applet_t *tool_applet_find(const char *name)
+{
+	tool_applet_t *iter;
+
+	for (iter = tool_applets; iter->name != NULL; iter++)
+	{
+		if (!strcmp(iter->name, name))
+			return iter;
+	}
+
+	return NULL;
+}
+
+int main(int argc, const char *argv[])
+{
+	tool_applet_t *tool;
+
+	if (argv[1] == NULL)
+		argv[1] = "usage";
+
+	tool = tool_applet_find(argv[1]);
+	if (tool == NULL)
+	{
+		fprintf(stderr, "%s: not implemented\n", argv[1]);
+		return EXIT_FAILURE;
+	}
+
+	return tool->main(argc - 1, argv + 1);
+}

tool/tool-applet.h

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2013 William Pitcock <[email protected]>.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef TOOL_APPLET_H
+#define TOOL_APPLET_H
+
+typedef struct tool_applet_s {
+	char *name;
+	int (*main)(int argc, const char **argv);
+} tool_applet_t;
+
+#endif