1 files changed, 94 insertions, 0 deletions
diff --git a/src/driver/tpax_amain.c b/src/driver/tpax_amain.c
new file mode 100644
index 0000000..f71f16c
--- /dev/null
+++ b/src/driver/tpax_amain.c
@@ -0,0 +1,94 @@
+/******************************************************/
+/*  tpax: a topological pax implementation            */
+/*  Copyright (C) 2020  Z. Gilboa                     */
+/*  Released under GPLv2 and GPLv3; see COPYING.TPAX. */
+/******************************************************/
+
+#include <stdio.h>
+#include <unistd.h>
+#include <tpax/tpax.h>
+#include "tpax_driver_impl.h"
+#include "tpax_dprintf_impl.h"
+
+#ifndef TPAX_DRIVER_FLAGS
+#define TPAX_DRIVER_FLAGS	TPAX_DRIVER_VERBOSITY_ERRORS \
+				| TPAX_DRIVER_VERBOSITY_USAGE
+#endif
+
+static const char vermsg[] = "%s%s%s (https://git.foss21.org/tpax): "
+			     "version %s%d.%d.%d%s.\n"
+			     "[commit reference: %s%s%s]\n";
+
+static const char * const tpax_ver_color[6] = {
+		"\x1b[1m\x1b[35m","\x1b[0m",
+		"\x1b[1m\x1b[32m","\x1b[0m",
+		"\x1b[1m\x1b[34m","\x1b[0m"
+};
+
+static const char * const tpax_ver_plain[6] = {
+		"","",
+		"","",
+		"",""
+};
+
+static ssize_t tpax_version(struct tpax_driver_ctx * dctx, int fdout)
+{
+	const struct tpax_source_version * verinfo;
+	const char * const * verclr;
+
+	verinfo = tpax_source_version();
+	verclr  = isatty(fdout) ? tpax_ver_color : tpax_ver_plain;
+
+	return tpax_dprintf(
+			fdout,vermsg,
+			verclr[0],dctx->program,verclr[1],
+			verclr[2],verinfo->major,verinfo->minor,
+			verinfo->revision,verclr[3],
+			verclr[4],verinfo->commit,verclr[5]);
+}
+
+static void tpax_perform_unit_actions(
+	const struct tpax_driver_ctx *	dctx,
+	struct tpax_unit_ctx *		uctx)
+{
+	(void)dctx;
+	(void)uctx;
+}
+
+static int tpax_exit(struct tpax_driver_ctx * dctx, int ret)
+{
+	tpax_output_error_vector(dctx);
+	tpax_free_driver_ctx(dctx);
+	return ret;
+}
+
+int tpax_main(char ** argv, char ** envp, const struct tpax_fd_ctx * fdctx)
+{
+	int			ret;
+	int			fdout;
+	uint64_t		flags;
+	struct tpax_driver_ctx *	dctx;
+	struct tpax_unit_ctx *	uctx;
+	const char **		unit;
+
+	flags = TPAX_DRIVER_FLAGS;
+	fdout = fdctx ? fdctx->fdout : STDOUT_FILENO;
+
+	if ((ret = tpax_get_driver_ctx(argv,envp,flags,fdctx,&dctx)))
+		return (ret == TPAX_USAGE)
+			? !argv || !argv[0] || !argv[1]
+			: TPAX_ERROR;
+
+	if (dctx->cctx->drvflags & TPAX_DRIVER_VERSION)
+		if ((tpax_version(dctx,fdout)) < 0)
+			return tpax_exit(dctx,TPAX_ERROR);
+
+	for (unit=dctx->units; *unit; unit++) {
+		if (!(tpax_get_unit_ctx(dctx,*unit,&uctx))) {
+			tpax_perform_unit_actions(dctx,uctx);
+			tpax_free_unit_ctx(uctx);
+		}
+	}
+
+	return tpax_exit(dctx,dctx->errv[0] ? TPAX_ERROR : TPAX_OK);
+}