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#include <stdio.h>
#include <unistd.h>
#include <sofort/sofort.h>
#include "sofort_version.h"

#ifndef SFRT_DRIVER_FLAGS
#define SFRT_DRIVER_FLAGS	SFRT_DRIVER_VERBOSITY_ERRORS \
				| SFRT_DRIVER_VERBOSITY_USAGE
#endif

static const char vermsg[] = "%s (git://midipix.org/sofort): commit %s.\n";

static ssize_t sofort_version(struct sfrt_driver_ctx * dctx)
{
	return fprintf(stdout,vermsg,dctx->program,SOFORT_GIT_VERSION);
}

static void sofort_perform_unit_actions(struct sfrt_unit_ctx * uctx)
{
	uint64_t flags = uctx->cctx->actflags;

	if (flags & SFRT_OUTPUT_NAME) {
		uctx->status = sfrt_output_name(uctx,stdout);
		uctx->nerrors += !!uctx->status;
	}

	if (flags & SFRT_OUTPUT_ADDRESS) {
		uctx->status = sfrt_output_address(uctx,stdout);
		uctx->nerrors += !!uctx->status;
	}
}

static int sofort_exit(struct sfrt_driver_ctx * dctx, int nerrors)
{
	sfrt_free_driver_ctx(dctx);
	return nerrors ? 2 : 0;
}

int sofort_main(int argc, const char ** argv, const char ** envp)
{
	int				ret;
	struct sfrt_driver_ctx *	dctx;
	struct sfrt_unit_ctx *		uctx;
	const char **			unit;

	if ((ret = sfrt_get_driver_ctx(argv,envp,SFRT_DRIVER_FLAGS,&dctx)))
		return (ret == SFRT_USAGE) ? !--argc : 2;

	if (dctx->cctx->drvflags & SFRT_DRIVER_VERSION)
		if ((sofort_version(dctx)) < 0)
			return sofort_exit(dctx,2);

	if (dctx->cctx->anystring)
		if ((sfrt_output_dummy(dctx->cctx,stdout)) < 0)
			return sofort_exit(dctx,2);

	for (unit=dctx->units; *unit; unit++) {
		if (!(sfrt_get_unit_ctx(dctx,*unit,&uctx))) {
			sofort_perform_unit_actions(uctx);
			ret += uctx->nerrors;
			sfrt_free_unit_ctx(uctx);
		}
	}

	return sofort_exit(dctx,ret);
}

#ifndef SOFORT_IN_A_BOX

int main(int argc, const char ** argv, const char ** envp)
{
	return sofort_main(argc,argv,envp);
}

#endif