Blame src/driver/ntux_amain.c

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/***********************************************************/
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/*  ntux: native translation und extension                 */
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/*  Copyright (C) 2016--2018  Z. Gilboa                    */
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/*  Released under GPLv2 and GPLv3; see COPYING.NTUX.      */
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/***********************************************************/
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#include <stdio.h>
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#include <unistd.h>
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#include <ntux/ntux.h>
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#include "ntux_dprintf_impl.h"
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#include "ntux_driver_impl.h"
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#include "ntux_nolibc_impl.h"
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#ifndef NTUX_DRIVER_FLAGS
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#define NTUX_DRIVER_FLAGS	NTUX_DRIVER_VERBOSITY_ERRORS \
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				| NTUX_DRIVER_VERBOSITY_USAGE
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#endif
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static const char vermsg[] = "%s%s%s (git://midipix.org/ntux): "
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			     "version %s%d.%d.%d%s.\n"
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			     "[commit reference: %s%s%s]\n";
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static const char * const ntux_ver_color[6] = {
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		"\x1b[1m\x1b[35m","\x1b[0m",
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		"\x1b[1m\x1b[32m","\x1b[0m",
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		"\x1b[1m\x1b[34m","\x1b[0m"
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};
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static const char * const ntux_ver_plain[6] = {
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		"","",
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		"","",
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		"",""
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};
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static ssize_t ntux_version(struct ntux_driver_ctx * dctx, int fdout)
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{
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	const struct ntux_source_version * verinfo;
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	const char * const * verclr;
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	verinfo = ntux_source_version();
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	verclr  = isatty(fdout) ? ntux_ver_color : ntux_ver_plain;
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	return ntux_dprintf(
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			fdout,vermsg,
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			verclr[0],dctx->program,verclr[1],
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			verclr[2],verinfo->major,verinfo->minor,
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			verinfo->revision,verclr[3],
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			verclr[4],verinfo->commit,verclr[5]);
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}
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static void ntux_perform_unit_actions(
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	const struct ntux_driver_ctx *	dctx,
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	const char *			unit)
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{
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	if (dctx->cctx->cmd == NTUX_CMD_STAT)
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		ntux_cmd_stat(dctx,unit);
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	else if (dctx->cctx->cmd == NTUX_CMD_CHMOD)
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		ntux_cmd_chmod(dctx,unit);
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}
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static int ntux_exit(struct ntux_driver_ctx * dctx, int ret)
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{
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	ntux_output_error_vector(dctx);
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	ntux_free_driver_ctx(dctx);
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	return ret;
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}
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int ntux_main(char ** argv, char ** envp, const struct ntux_fd_ctx * fdctx)
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{
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	int				ret;
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	int				fdout;
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	uint64_t			flags;
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	struct ntux_driver_ctx *	dctx;
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	const char **			unit;
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	flags = NTUX_DRIVER_FLAGS;
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	fdout = fdctx ? fdctx->fdout : STDOUT_FILENO;
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	if ((ret = ntux_get_driver_ctx(argv,envp,flags,fdctx,&dctx)))
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		return (ret == NTUX_USAGE)
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			? !argv || !argv[0] || !argv[1]
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			: NTUX_ERROR;
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	if (dctx->cctx->drvflags & NTUX_DRIVER_VERSION)
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		if ((ntux_version(dctx,fdout)) < 0)
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			return ntux_exit(dctx,NTUX_ERROR);
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	if (dctx->cctx->cmd == NTUX_CMD_SPAWN)
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		ntux_cmd_spawn(dctx);
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	if (dctx->cctx->cmd == NTUX_CMD_STRACE)
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		ntux_cmd_strace(dctx);
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	for (unit=dctx->units; *unit; unit++)
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		ntux_perform_unit_actions(dctx,*unit);
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	return ntux_exit(dctx,dctx->errv[0] ? NTUX_ERROR : NTUX_OK);
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}