[babeltrace.git] / converter / babeltrace-log.c

/*
 * babeltrace-log.c
 *
 * BabelTrace - Convert Text Log to CTF
 *
 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
 *
 * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * Depends on glibc 2.10 for getline().
 */

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <dirent.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include <errno.h>
#include <uuid/uuid.h>
#include <string.h>
#include <endian.h>

#include <babeltrace/babeltrace.h>
#include <babeltrace/ctf/types.h>

#define USEC_PER_SEC 1000000UL

#ifndef UUID_STR_LEN
#define UUID_STR_LEN	37	/* With \0 */
#endif

int babeltrace_debug, babeltrace_verbose;

static char *s_outputname;
static int s_timestamp;
static int s_help;
static uuid_t s_uuid;

/* Metadata format string */
static const char metadata_fmt[] =
"typealias integer { size = 8; align = 8; signed = false; } := uint8_t;\n"
"typealias integer { size = 32; align = 32; signed = false; } := uint32_t;\n"
"\n"
"trace {\n"
"	major = %u;\n"			/* major (e.g. 0) */
"	minor = %u;\n"			/* minor (e.g. 1) */
"	uuid = \"%s\";\n"		/* UUID */
"	byte_order = %s;\n"		/* be or le */
"	packet.header := struct {\n"
"		uint32_t magic;\n"
"		uint8_t  uuid[16];\n"
"	};\n"
"};\n"
"\n"
"stream {\n"
"	packet.context := struct {\n"
"		uint32_t content_size;\n"
"		uint32_t packet_size;\n"
"	};\n"
"%s"					/* Stream event header (opt.) */
"};\n"
"\n"
"event {\n"
"	name = string;\n"
"	fields := struct { string str; };\n"
"};\n";

static const char metadata_stream_event_header_timestamp[] =
"	typealias integer { size = 64; align = 64; signed = false; } := uint64_t;\n"
"	event.header := struct {\n"
"		uint64_t timestamp;\n"
"	};\n";

static
void print_metadata(FILE *fp)
{
	char uuid_str[UUID_STR_LEN];

	uuid_unparse(s_uuid, uuid_str);
	fprintf(fp, metadata_fmt,
		BABELTRACE_VERSION_MAJOR,
		BABELTRACE_VERSION_MINOR,
		uuid_str,
		BYTE_ORDER == LITTLE_ENDIAN ? "le" : "be",
		s_timestamp ? metadata_stream_event_header_timestamp : "");
}

static
void write_packet_header(struct ctf_stream_pos *pos, uuid_t uuid)
{
	struct ctf_stream_pos dummy;

	/* magic */
	ctf_dummy_pos(pos, &dummy);
	ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	assert(!ctf_pos_packet(&dummy));
	
	ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
	*(uint32_t *) ctf_get_pos_addr(pos) = 0xC1FC1FC1;
	ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);

	/* uuid */
	ctf_dummy_pos(pos, &dummy);
	ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
	ctf_move_pos(&dummy, 16 * CHAR_BIT);
	assert(!ctf_pos_packet(&dummy));

	ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT);
	memcpy(ctf_get_pos_addr(pos), uuid, 16);
	ctf_move_pos(pos, 16 * CHAR_BIT);
}

static
void write_packet_context(struct ctf_stream_pos *pos)
{
	struct ctf_stream_pos dummy;

	/* content_size */
	ctf_dummy_pos(pos, &dummy);
	ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	assert(!ctf_pos_packet(&dummy));
	
	ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
	*(uint32_t *) ctf_get_pos_addr(pos) = -1U;	/* Not known yet */
	pos->content_size_loc = (uint32_t *) ctf_get_pos_addr(pos);
	ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);

	/* packet_size */
	ctf_dummy_pos(pos, &dummy);
	ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	assert(!ctf_pos_packet(&dummy));
	
	ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
	*(uint32_t *) ctf_get_pos_addr(pos) = pos->packet_size;
	ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
}

static
void write_event_header(struct ctf_stream_pos *pos, char *line,
			char **tline, size_t len, size_t *tlen,
			uint64_t *ts)
{
	unsigned long sec, usec;
	int ret;

	if (!s_timestamp)
		return;

	/* Only need to be executed on first pass (dummy) */
	if (pos->dummy) {
		/* Extract time from input line */
		ret = sscanf(line, "[%lu.%lu] ", &sec, &usec);
		if (ret == 2) {
			*tline = strchr(line, ']');
			assert(*tline);
			(*tline)++;
			if ((*tline)[0] == ' ') {
				(*tline)++;
			}
			*tlen = len + line - *tline;
			*ts = (uint64_t) sec * USEC_PER_SEC + (uint64_t) usec;
		}
	}
	/* timestamp */
	ctf_align_pos(pos, sizeof(uint64_t) * CHAR_BIT);
	if (!pos->dummy)
		*(uint64_t *) ctf_get_pos_addr(pos) = *ts;
	ctf_move_pos(pos, sizeof(uint64_t) * CHAR_BIT);
}

static
void trace_string(char *line, struct ctf_stream_pos *pos, size_t len)
{
	struct ctf_stream_pos dummy;
	int attempt = 0;
	char *tline = line;	/* tline is start of text, after timestamp */
	size_t tlen = len;
	uint64_t ts = 0;

	printf_debug("read: %s\n", line);
retry:
	ctf_dummy_pos(pos, &dummy);
	write_event_header(&dummy, line, &tline, len, &tlen, &ts);
	ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
	ctf_move_pos(&dummy, tlen * CHAR_BIT);
	if (ctf_pos_packet(&dummy)) {
		ctf_pos_pad_packet(pos);
		write_packet_header(pos, s_uuid);
		write_packet_context(pos);
		if (attempt++ == 1) {
			fprintf(stdout, "[Error] Line too large for packet size (%zukB) (discarded)\n",
				pos->packet_size / CHAR_BIT / 1024);
			return;
		}
		goto retry;
	}

	write_event_header(pos, line, &tline, len, &tlen, &ts);
	ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT);
	memcpy(ctf_get_pos_addr(pos), tline, tlen);
	ctf_move_pos(pos, tlen * CHAR_BIT);
}

static
void trace_text(FILE *input, int output)
{
	struct ctf_stream_pos pos;
	ssize_t len;
	char *line = NULL, *nl;
	size_t linesize;

	ctf_init_pos(&pos, output, O_RDWR);

	write_packet_header(&pos, s_uuid);
	write_packet_context(&pos);
	for (;;) {
		len = getline(&line, &linesize, input);
		if (len < 0)
			break;
		nl = strrchr(line, '\n');
		if (nl)
			*nl = '\0';
		trace_string(line, &pos, nl - line + 1);
	}
	ctf_fini_pos(&pos);
}

static
void usage(FILE *fp)
{
	fprintf(fp, "BabelTrace Log Converter %u.%u\n",
		BABELTRACE_VERSION_MAJOR,
		BABELTRACE_VERSION_MINOR);
	fprintf(fp, "\n");
	fprintf(fp, "Convert for a text log (read from standard input) to CTF.\n");
	fprintf(fp, "\n");
	fprintf(fp, "usage : babeltrace-log [OPTIONS] OUTPUT\n");
	fprintf(fp, "\n");
	fprintf(fp, "  OUTPUT                         Output trace path\n");
	fprintf(fp, "\n");
	fprintf(fp, "  -t                             With timestamps (format: [sec.usec] string\\n)\n");
	fprintf(fp, "\n");
}

static
int parse_args(int argc, char **argv)
{
	int i;

	for (i = 1; i < argc; i++) {
		if (!strcmp(argv[i], "-t"))
			s_timestamp = 1;
		else if (!strcmp(argv[i], "-h")) {
			s_help = 1;
			return 0;
		} else if (argv[i][0] == '-')
			return -EINVAL;
		else
			s_outputname = argv[i];
	}
	if (!s_outputname)
		return -EINVAL;
	return 0;
}

int main(int argc, char **argv)
{
	int fd, metadata_fd, ret;
	DIR *dir;
	int dir_fd;
	FILE *metadata_fp;

	ret = parse_args(argc, argv);
	if (ret) {
		fprintf(stdout, "Error: invalid argument.\n");
		usage(stdout);
		goto error;
	}

	if (s_help) {
		usage(stdout);
		exit(EXIT_SUCCESS);
	}

	ret = mkdir(s_outputname, S_IRWXU|S_IRWXG);
	if (ret) {
		perror("mkdir");
		goto error;
	}

	dir = opendir(s_outputname);
	if (!dir) {
		perror("opendir");
		goto error_rmdir;
	}
	dir_fd = dirfd(dir);
	if (dir_fd < 0) {
		perror("dirfd");
		goto error_closedir;
	}

	fd = openat(dir_fd, "datastream", O_RDWR|O_CREAT,
		    S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP);
	if (fd < 0) {
		perror("openat");
		goto error_closedirfd;
	}

	metadata_fd = openat(dir_fd, "metadata", O_RDWR|O_CREAT,
			     S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP);
	if (fd < 0) {
		perror("openat");
		goto error_closedatastream;
	}
	metadata_fp = fdopen(metadata_fd, "w");
	if (!metadata_fp) {
		perror("fdopen");
		goto error_closemetadatafd;
	}

	uuid_generate(s_uuid);
	print_metadata(metadata_fp);
	trace_text(stdin, fd);

	close(fd);
	exit(EXIT_SUCCESS);

	/* error handling */
error_closemetadatafd:
	ret = close(metadata_fd);
	if (ret)
		perror("close");
error_closedatastream:
	ret = close(fd);
	if (ret)
		perror("close");
error_closedirfd:
	ret = close(dir_fd);
	if (ret)
		perror("close");
error_closedir:
	ret = closedir(dir);
	if (ret)
		perror("closedir");
error_rmdir:
	ret = rmdir(s_outputname);
	if (ret)
		perror("rmdir");
error:
	exit(EXIT_FAILURE);
}
Commit	Line	Data
8c572eba	1	/*
b522ac18	2	* babeltrace-log.c
8c572eba	3	*
b522ac18	4	* BabelTrace - Convert Text Log to CTF
8c572eba	5	*
64fa3fec MD	6	* Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
	7	*
	8	* Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8c572eba MD	9	*
	10	* Permission is hereby granted, free of charge, to any person obtaining a copy
	11	* of this software and associated documentation files (the "Software"), to deal
	12	* in the Software without restriction, including without limitation the rights
	13	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	14	* copies of the Software, and to permit persons to whom the Software is
	15	* furnished to do so, subject to the following conditions:
	16	*
	17	* The above copyright notice and this permission notice shall be included in
	18	* all copies or substantial portions of the Software.
	19	*
	20	* Depends on glibc 2.10 for getline().
	21	*/
	22
90219914 MD	23	#include <sys/types.h>
	24	#include <sys/stat.h>
	25	#include <fcntl.h>
	26	#include <sys/mman.h>
989c73bc	27	#include <dirent.h>
90219914	28	#include <stdio.h>
989c73bc	29	#include <stdlib.h>
90219914 MD	30	#include <stdint.h>
	31	#include <unistd.h>
	32	#include <errno.h>
	33	#include <uuid/uuid.h>
	34	#include <string.h>
989c73bc	35	#include <endian.h>
90219914	36
8c572eba MD	37	#include <babeltrace/babeltrace.h>
	38	#include <babeltrace/ctf/types.h>
	39
bfe09576	40	#define USEC_PER_SEC 1000000UL
ca8b2b02	41
b522ac18 MD	42	#ifndef UUID_STR_LEN
	43	#define UUID_STR_LEN 37 /* With \0 */
	44	#endif
	45
ca8b2b02 MD	46	int babeltrace_debug, babeltrace_verbose;
	47
	48	static char *s_outputname;
	49	static int s_timestamp;
39592eae	50	static int s_help;
ca8b2b02 MD	51	static uuid_t s_uuid;
ca8b2b02 MD	52
b522ac18 MD	53	/* Metadata format string */
b522ac18 MD	54	static const char metadata_fmt[] =
989c73bc MD	55	"typealias integer { size = 8; align = 8; signed = false; } := uint8_t;\n"
	56	"typealias integer { size = 32; align = 32; signed = false; } := uint32_t;\n"
	57	"\n"
	58	"trace {\n"
c818559a MD	59	" major = %u;\n" /* major (e.g. 0) */
c818559a MD	60	" minor = %u;\n" /* minor (e.g. 1) */
b522ac18	61	" uuid = \"%s\";\n" /* UUID */
989c73bc MD	62	" byte_order = %s;\n" /* be or le */
	63	" packet.header := struct {\n"
	64	" uint32_t magic;\n"
b4c19c1e	65	" uint8_t uuid[16];\n"
989c73bc MD	66	" };\n"
	67	"};\n"
	68	"\n"
	69	"stream {\n"
	70	" packet.context := struct {\n"
	71	" uint32_t content_size;\n"
	72	" uint32_t packet_size;\n"
	73	" };\n"
ca8b2b02	74	"%s" /* Stream event header (opt.) */
989c73bc MD	75	"};\n"
	76	"\n"
	77	"event {\n"
	78	" name = string;\n"
	79	" fields := struct { string str; };\n"
	80	"};\n";
	81
ca8b2b02 MD	82	static const char metadata_stream_event_header_timestamp[] =
	83	" typealias integer { size = 64; align = 64; signed = false; } := uint64_t;\n"
	84	" event.header := struct {\n"
	85	" uint64_t timestamp;\n"
	86	" };\n";
8c572eba	87
b522ac18 MD	88	static
	89	void print_metadata(FILE *fp)
	90	{
	91	char uuid_str[UUID_STR_LEN];
	92
	93	uuid_unparse(s_uuid, uuid_str);
	94	fprintf(fp, metadata_fmt,
c818559a MD	95	BABELTRACE_VERSION_MAJOR,
c818559a MD	96	BABELTRACE_VERSION_MINOR,
b522ac18	97	uuid_str,
ca8b2b02 MD	98	BYTE_ORDER == LITTLE_ENDIAN ? "le" : "be",
ca8b2b02 MD	99	s_timestamp ? metadata_stream_event_header_timestamp : "");
b522ac18 MD	100	}
b522ac18 MD	101
8c572eba	102	static
46322b33	103	void write_packet_header(struct ctf_stream_pos *pos, uuid_t uuid)
8c572eba	104	{
46322b33	105	struct ctf_stream_pos dummy;
8c572eba MD	106
8c572eba MD	107	/* magic */
46322b33 MD	108	ctf_dummy_pos(pos, &dummy);
	109	ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	110	ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	111	assert(!ctf_pos_packet(&dummy));
8c572eba	112
46322b33 MD	113	ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
	114	(uint32_t ) ctf_get_pos_addr(pos) = 0xC1FC1FC1;
	115	ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
8c572eba	116
b4c19c1e	117	/* uuid */
46322b33 MD	118	ctf_dummy_pos(pos, &dummy);
	119	ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
	120	ctf_move_pos(&dummy, 16 * CHAR_BIT);
	121	assert(!ctf_pos_packet(&dummy));
	122
	123	ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT);
	124	memcpy(ctf_get_pos_addr(pos), uuid, 16);
	125	ctf_move_pos(pos, 16 * CHAR_BIT);
8c572eba MD	126	}
	127
	128	static
46322b33	129	void write_packet_context(struct ctf_stream_pos *pos)
8c572eba	130	{
46322b33	131	struct ctf_stream_pos dummy;
8c572eba MD	132
8c572eba MD	133	/* content_size */
46322b33 MD	134	ctf_dummy_pos(pos, &dummy);
	135	ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	136	ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	137	assert(!ctf_pos_packet(&dummy));
8c572eba	138
46322b33 MD	139	ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
	140	(uint32_t ) ctf_get_pos_addr(pos) = -1U; /* Not known yet */
	141	pos->content_size_loc = (uint32_t *) ctf_get_pos_addr(pos);
	142	ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
8c572eba MD	143
8c572eba MD	144	/* packet_size */
46322b33 MD	145	ctf_dummy_pos(pos, &dummy);
	146	ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	147	ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	148	assert(!ctf_pos_packet(&dummy));
8c572eba	149
46322b33 MD	150	ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
	151	(uint32_t ) ctf_get_pos_addr(pos) = pos->packet_size;
	152	ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
8c572eba MD	153	}
8c572eba MD	154
ca8b2b02 MD	155	static
	156	void write_event_header(struct ctf_stream_pos pos, char line,
	157	char *tline, size_t len, size_t tlen,
	158	uint64_t *ts)
	159	{
bfe09576	160	unsigned long sec, usec;
ca8b2b02 MD	161	int ret;
	162
	163	if (!s_timestamp)
	164	return;
	165
	166	/* Only need to be executed on first pass (dummy) */
	167	if (pos->dummy) {
	168	/* Extract time from input line */
bfe09576	169	ret = sscanf(line, "[%lu.%lu] ", &sec, &usec);
ca8b2b02 MD	170	if (ret == 2) {
ca8b2b02 MD	171	*tline = strchr(line, ']');
bfe09576 MD	172	assert(*tline);
	173	(*tline)++;
	174	if ((*tline)[0] == ' ') {
ca8b2b02	175	(*tline)++;
bfe09576	176	}
ca8b2b02	177	tlen = len + line - tline;
bfe09576	178	ts = (uint64_t) sec USEC_PER_SEC + (uint64_t) usec;
ca8b2b02 MD	179	}
	180	}
	181	/* timestamp */
	182	ctf_align_pos(pos, sizeof(uint64_t) * CHAR_BIT);
	183	if (!pos->dummy)
bc7eb6c8	184	(uint64_t ) ctf_get_pos_addr(pos) = *ts;
ca8b2b02 MD	185	ctf_move_pos(pos, sizeof(uint64_t) * CHAR_BIT);
	186	}
	187
8c572eba	188	static
46322b33	189	void trace_string(char line, struct ctf_stream_pos pos, size_t len)
8c572eba	190	{
46322b33	191	struct ctf_stream_pos dummy;
8c572eba	192	int attempt = 0;
ca8b2b02 MD	193	char tline = line; / tline is start of text, after timestamp */
	194	size_t tlen = len;
	195	uint64_t ts = 0;
8c572eba MD	196
	197	printf_debug("read: %s\n", line);
	198	retry:
46322b33	199	ctf_dummy_pos(pos, &dummy);
ca8b2b02	200	write_event_header(&dummy, line, &tline, len, &tlen, &ts);
46322b33	201	ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
ca8b2b02	202	ctf_move_pos(&dummy, tlen * CHAR_BIT);
46322b33	203	if (ctf_pos_packet(&dummy)) {
46322b33	204	ctf_pos_pad_packet(pos);
8c572eba MD	205	write_packet_header(pos, s_uuid);
	206	write_packet_context(pos);
	207	if (attempt++ == 1) {
	208	fprintf(stdout, "[Error] Line too large for packet size (%zukB) (discarded)\n",
	209	pos->packet_size / CHAR_BIT / 1024);
	210	return;
	211	}
	212	goto retry;
	213	}
	214
ca8b2b02	215	write_event_header(pos, line, &tline, len, &tlen, &ts);
46322b33	216	ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT);
ca8b2b02 MD	217	memcpy(ctf_get_pos_addr(pos), tline, tlen);
ca8b2b02 MD	218	ctf_move_pos(pos, tlen * CHAR_BIT);
8c572eba MD	219	}
	220
	221	static
	222	void trace_text(FILE *input, int output)
	223	{
46322b33	224	struct ctf_stream_pos pos;
8c572eba MD	225	ssize_t len;
	226	char line = NULL, nl;
	227	size_t linesize;
	228
989c73bc	229	ctf_init_pos(&pos, output, O_RDWR);
8c572eba MD	230
	231	write_packet_header(&pos, s_uuid);
	232	write_packet_context(&pos);
	233	for (;;) {
	234	len = getline(&line, &linesize, input);
	235	if (len < 0)
	236	break;
	237	nl = strrchr(line, '\n');
	238	if (nl)
	239	*nl = '\0';
	240	trace_string(line, &pos, nl - line + 1);
	241	}
46322b33	242	ctf_fini_pos(&pos);
8c572eba	243	}
90219914	244
ca8b2b02 MD	245	static
ca8b2b02 MD	246	void usage(FILE *fp)
989c73bc MD	247	{
	248	fprintf(fp, "BabelTrace Log Converter %u.%u\n",
	249	BABELTRACE_VERSION_MAJOR,
	250	BABELTRACE_VERSION_MINOR);
	251	fprintf(fp, "\n");
	252	fprintf(fp, "Convert for a text log (read from standard input) to CTF.\n");
	253	fprintf(fp, "\n");
78893e6e	254	fprintf(fp, "usage : babeltrace-log [OPTIONS] OUTPUT\n");
989c73bc MD	255	fprintf(fp, "\n");
	256	fprintf(fp, " OUTPUT Output trace path\n");
	257	fprintf(fp, "\n");
78893e6e MD	258	fprintf(fp, " -t With timestamps (format: [sec.usec] string\\n)\n");
78893e6e MD	259	fprintf(fp, "\n");
989c73bc MD	260	}
989c73bc MD	261
ca8b2b02 MD	262	static
	263	int parse_args(int argc, char **argv)
	264	{
	265	int i;
	266
	267	for (i = 1; i < argc; i++) {
	268	if (!strcmp(argv[i], "-t"))
	269	s_timestamp = 1;
39592eae MD	270	else if (!strcmp(argv[i], "-h")) {
	271	s_help = 1;
	272	return 0;
	273	} else if (argv[i][0] == '-')
	274	return -EINVAL;
ca8b2b02 MD	275	else
	276	s_outputname = argv[i];
	277	}
	278	if (!s_outputname)
	279	return -EINVAL;
	280	return 0;
	281	}
	282
90219914 MD	283	int main(int argc, char **argv)
90219914 MD	284	{
b522ac18	285	int fd, metadata_fd, ret;
989c73bc MD	286	DIR *dir;
989c73bc MD	287	int dir_fd;
b522ac18	288	FILE *metadata_fp;
90219914	289
ca8b2b02 MD	290	ret = parse_args(argc, argv);
ca8b2b02 MD	291	if (ret) {
39592eae	292	fprintf(stdout, "Error: invalid argument.\n");
989c73bc MD	293	usage(stdout);
989c73bc MD	294	goto error;
90219914	295	}
90219914	296
39592eae MD	297	if (s_help) {
	298	usage(stdout);
	299	exit(EXIT_SUCCESS);
	300	}
	301
ca8b2b02	302	ret = mkdir(s_outputname, S_IRWXU\|S_IRWXG);
90219914	303	if (ret) {
989c73bc MD	304	perror("mkdir");
	305	goto error;
	306	}
	307
ca8b2b02	308	dir = opendir(s_outputname);
989c73bc MD	309	if (!dir) {
	310	perror("opendir");
	311	goto error_rmdir;
	312	}
	313	dir_fd = dirfd(dir);
	314	if (dir_fd < 0) {
	315	perror("dirfd");
	316	goto error_closedir;
	317	}
	318
	319	fd = openat(dir_fd, "datastream", O_RDWR\|O_CREAT,
	320	S_IRUSR\|S_IWUSR\|S_IRGRP\|S_IWGRP);
	321	if (fd < 0) {
	322	perror("openat");
	323	goto error_closedirfd;
90219914	324	}
90219914	325
b522ac18 MD	326	metadata_fd = openat(dir_fd, "metadata", O_RDWR\|O_CREAT,
	327	S_IRUSR\|S_IWUSR\|S_IRGRP\|S_IWGRP);
	328	if (fd < 0) {
	329	perror("openat");
	330	goto error_closedatastream;
	331	}
	332	metadata_fp = fdopen(metadata_fd, "w");
	333	if (!metadata_fp) {
	334	perror("fdopen");
	335	goto error_closemetadatafd;
	336	}
	337
	338	uuid_generate(s_uuid);
	339	print_metadata(metadata_fp);
8c572eba	340	trace_text(stdin, fd);
989c73bc	341
90219914	342	close(fd);
989c73bc MD	343	exit(EXIT_SUCCESS);
	344
	345	/* error handling */
b522ac18 MD	346	error_closemetadatafd:
	347	ret = close(metadata_fd);
	348	if (ret)
	349	perror("close");
	350	error_closedatastream:
	351	ret = close(fd);
	352	if (ret)
	353	perror("close");
989c73bc MD	354	error_closedirfd:
	355	ret = close(dir_fd);
	356	if (ret)
	357	perror("close");
	358	error_closedir:
	359	ret = closedir(dir);
	360	if (ret)
	361	perror("closedir");
	362	error_rmdir:
ca8b2b02	363	ret = rmdir(s_outputname);
989c73bc MD	364	if (ret)
	365	perror("rmdir");
	366	error:
	367	exit(EXIT_FAILURE);
90219914	368	}