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

/*
 * babeltrace-log.c
 *
 * BabelTrace - Convert Text Log to CTF
 *
 * Copyright 2010, 2011 - 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)
		*(uint32_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 MD	5	*
	6	* Copyright 2010, 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	7	*
	8	* Permission is hereby granted, free of charge, to any person obtaining a copy
	9	* of this software and associated documentation files (the "Software"), to deal
	10	* in the Software without restriction, including without limitation the rights
	11	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	12	* copies of the Software, and to permit persons to whom the Software is
	13	* furnished to do so, subject to the following conditions:
	14	*
	15	* The above copyright notice and this permission notice shall be included in
	16	* all copies or substantial portions of the Software.
	17	*
	18	* Depends on glibc 2.10 for getline().
	19	*/
	20
90219914 MD	21	#include <sys/types.h>
	22	#include <sys/stat.h>
	23	#include <fcntl.h>
	24	#include <sys/mman.h>
989c73bc	25	#include <dirent.h>
90219914	26	#include <stdio.h>
989c73bc	27	#include <stdlib.h>
90219914 MD	28	#include <stdint.h>
	29	#include <unistd.h>
	30	#include <errno.h>
	31	#include <uuid/uuid.h>
	32	#include <string.h>
989c73bc	33	#include <endian.h>
90219914	34
8c572eba MD	35	#include <babeltrace/babeltrace.h>
	36	#include <babeltrace/ctf/types.h>
	37
bfe09576	38	#define USEC_PER_SEC 1000000UL
ca8b2b02	39
b522ac18 MD	40	#ifndef UUID_STR_LEN
	41	#define UUID_STR_LEN 37 /* With \0 */
	42	#endif
	43
ca8b2b02 MD	44	int babeltrace_debug, babeltrace_verbose;
	45
	46	static char *s_outputname;
	47	static int s_timestamp;
39592eae	48	static int s_help;
ca8b2b02 MD	49	static uuid_t s_uuid;
ca8b2b02 MD	50
b522ac18 MD	51	/* Metadata format string */
b522ac18 MD	52	static const char metadata_fmt[] =
989c73bc MD	53	"typealias integer { size = 8; align = 8; signed = false; } := uint8_t;\n"
	54	"typealias integer { size = 32; align = 32; signed = false; } := uint32_t;\n"
	55	"\n"
	56	"trace {\n"
c818559a MD	57	" major = %u;\n" /* major (e.g. 0) */
c818559a MD	58	" minor = %u;\n" /* minor (e.g. 1) */
b522ac18	59	" uuid = \"%s\";\n" /* UUID */
989c73bc MD	60	" byte_order = %s;\n" /* be or le */
	61	" packet.header := struct {\n"
	62	" uint32_t magic;\n"
b4c19c1e	63	" uint8_t uuid[16];\n"
989c73bc MD	64	" };\n"
	65	"};\n"
	66	"\n"
	67	"stream {\n"
	68	" packet.context := struct {\n"
	69	" uint32_t content_size;\n"
	70	" uint32_t packet_size;\n"
	71	" };\n"
ca8b2b02	72	"%s" /* Stream event header (opt.) */
989c73bc MD	73	"};\n"
	74	"\n"
	75	"event {\n"
	76	" name = string;\n"
	77	" fields := struct { string str; };\n"
	78	"};\n";
	79
ca8b2b02 MD	80	static const char metadata_stream_event_header_timestamp[] =
	81	" typealias integer { size = 64; align = 64; signed = false; } := uint64_t;\n"
	82	" event.header := struct {\n"
	83	" uint64_t timestamp;\n"
	84	" };\n";
8c572eba	85
b522ac18 MD	86	static
	87	void print_metadata(FILE *fp)
	88	{
	89	char uuid_str[UUID_STR_LEN];
	90
	91	uuid_unparse(s_uuid, uuid_str);
	92	fprintf(fp, metadata_fmt,
c818559a MD	93	BABELTRACE_VERSION_MAJOR,
c818559a MD	94	BABELTRACE_VERSION_MINOR,
b522ac18	95	uuid_str,
ca8b2b02 MD	96	BYTE_ORDER == LITTLE_ENDIAN ? "le" : "be",
ca8b2b02 MD	97	s_timestamp ? metadata_stream_event_header_timestamp : "");
b522ac18 MD	98	}
b522ac18 MD	99
8c572eba	100	static
46322b33	101	void write_packet_header(struct ctf_stream_pos *pos, uuid_t uuid)
8c572eba	102	{
46322b33	103	struct ctf_stream_pos dummy;
8c572eba MD	104
8c572eba MD	105	/* magic */
46322b33 MD	106	ctf_dummy_pos(pos, &dummy);
	107	ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	108	ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	109	assert(!ctf_pos_packet(&dummy));
8c572eba	110
46322b33 MD	111	ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
	112	(uint32_t ) ctf_get_pos_addr(pos) = 0xC1FC1FC1;
	113	ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
8c572eba	114
b4c19c1e	115	/* uuid */
46322b33 MD	116	ctf_dummy_pos(pos, &dummy);
	117	ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
	118	ctf_move_pos(&dummy, 16 * CHAR_BIT);
	119	assert(!ctf_pos_packet(&dummy));
	120
	121	ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT);
	122	memcpy(ctf_get_pos_addr(pos), uuid, 16);
	123	ctf_move_pos(pos, 16 * CHAR_BIT);
8c572eba MD	124	}
	125
	126	static
46322b33	127	void write_packet_context(struct ctf_stream_pos *pos)
8c572eba	128	{
46322b33	129	struct ctf_stream_pos dummy;
8c572eba MD	130
8c572eba MD	131	/* content_size */
46322b33 MD	132	ctf_dummy_pos(pos, &dummy);
	133	ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	134	ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	135	assert(!ctf_pos_packet(&dummy));
8c572eba	136
46322b33 MD	137	ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
	138	(uint32_t ) ctf_get_pos_addr(pos) = -1U; /* Not known yet */
	139	pos->content_size_loc = (uint32_t *) ctf_get_pos_addr(pos);
	140	ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
8c572eba MD	141
8c572eba MD	142	/* packet_size */
46322b33 MD	143	ctf_dummy_pos(pos, &dummy);
	144	ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	145	ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	146	assert(!ctf_pos_packet(&dummy));
8c572eba	147
46322b33 MD	148	ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
	149	(uint32_t ) ctf_get_pos_addr(pos) = pos->packet_size;
	150	ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
8c572eba MD	151	}
8c572eba MD	152
ca8b2b02 MD	153	static
	154	void write_event_header(struct ctf_stream_pos pos, char line,
	155	char *tline, size_t len, size_t tlen,
	156	uint64_t *ts)
	157	{
bfe09576	158	unsigned long sec, usec;
ca8b2b02 MD	159	int ret;
	160
	161	if (!s_timestamp)
	162	return;
	163
	164	/* Only need to be executed on first pass (dummy) */
	165	if (pos->dummy) {
	166	/* Extract time from input line */
bfe09576	167	ret = sscanf(line, "[%lu.%lu] ", &sec, &usec);
ca8b2b02 MD	168	if (ret == 2) {
ca8b2b02 MD	169	*tline = strchr(line, ']');
bfe09576 MD	170	assert(*tline);
	171	(*tline)++;
	172	if ((*tline)[0] == ' ') {
ca8b2b02	173	(*tline)++;
bfe09576	174	}
ca8b2b02	175	tlen = len + line - tline;
bfe09576	176	ts = (uint64_t) sec USEC_PER_SEC + (uint64_t) usec;
ca8b2b02 MD	177	}
	178	}
	179	/* timestamp */
	180	ctf_align_pos(pos, sizeof(uint64_t) * CHAR_BIT);
	181	if (!pos->dummy)
	182	(uint32_t ) ctf_get_pos_addr(pos) = *ts;
	183	ctf_move_pos(pos, sizeof(uint64_t) * CHAR_BIT);
	184	}
	185
8c572eba	186	static
46322b33	187	void trace_string(char line, struct ctf_stream_pos pos, size_t len)
8c572eba	188	{
46322b33	189	struct ctf_stream_pos dummy;
8c572eba	190	int attempt = 0;
ca8b2b02 MD	191	char tline = line; / tline is start of text, after timestamp */
	192	size_t tlen = len;
	193	uint64_t ts = 0;
8c572eba MD	194
	195	printf_debug("read: %s\n", line);
	196	retry:
46322b33	197	ctf_dummy_pos(pos, &dummy);
ca8b2b02	198	write_event_header(&dummy, line, &tline, len, &tlen, &ts);
46322b33	199	ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
ca8b2b02	200	ctf_move_pos(&dummy, tlen * CHAR_BIT);
46322b33	201	if (ctf_pos_packet(&dummy)) {
46322b33	202	ctf_pos_pad_packet(pos);
8c572eba MD	203	write_packet_header(pos, s_uuid);
	204	write_packet_context(pos);
	205	if (attempt++ == 1) {
	206	fprintf(stdout, "[Error] Line too large for packet size (%zukB) (discarded)\n",
	207	pos->packet_size / CHAR_BIT / 1024);
	208	return;
	209	}
	210	goto retry;
	211	}
	212
ca8b2b02	213	write_event_header(pos, line, &tline, len, &tlen, &ts);
46322b33	214	ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT);
ca8b2b02 MD	215	memcpy(ctf_get_pos_addr(pos), tline, tlen);
ca8b2b02 MD	216	ctf_move_pos(pos, tlen * CHAR_BIT);
8c572eba MD	217	}
	218
	219	static
	220	void trace_text(FILE *input, int output)
	221	{
46322b33	222	struct ctf_stream_pos pos;
8c572eba MD	223	ssize_t len;
	224	char line = NULL, nl;
	225	size_t linesize;
	226
989c73bc	227	ctf_init_pos(&pos, output, O_RDWR);
8c572eba MD	228
	229	write_packet_header(&pos, s_uuid);
	230	write_packet_context(&pos);
	231	for (;;) {
	232	len = getline(&line, &linesize, input);
	233	if (len < 0)
	234	break;
	235	nl = strrchr(line, '\n');
	236	if (nl)
	237	*nl = '\0';
	238	trace_string(line, &pos, nl - line + 1);
	239	}
46322b33	240	ctf_fini_pos(&pos);
8c572eba	241	}
90219914	242
ca8b2b02 MD	243	static
ca8b2b02 MD	244	void usage(FILE *fp)
989c73bc MD	245	{
	246	fprintf(fp, "BabelTrace Log Converter %u.%u\n",
	247	BABELTRACE_VERSION_MAJOR,
	248	BABELTRACE_VERSION_MINOR);
	249	fprintf(fp, "\n");
	250	fprintf(fp, "Convert for a text log (read from standard input) to CTF.\n");
	251	fprintf(fp, "\n");
78893e6e	252	fprintf(fp, "usage : babeltrace-log [OPTIONS] OUTPUT\n");
989c73bc MD	253	fprintf(fp, "\n");
	254	fprintf(fp, " OUTPUT Output trace path\n");
	255	fprintf(fp, "\n");
78893e6e MD	256	fprintf(fp, " -t With timestamps (format: [sec.usec] string\\n)\n");
78893e6e MD	257	fprintf(fp, "\n");
989c73bc MD	258	}
989c73bc MD	259
ca8b2b02 MD	260	static
	261	int parse_args(int argc, char **argv)
	262	{
	263	int i;
	264
	265	for (i = 1; i < argc; i++) {
	266	if (!strcmp(argv[i], "-t"))
	267	s_timestamp = 1;
39592eae MD	268	else if (!strcmp(argv[i], "-h")) {
	269	s_help = 1;
	270	return 0;
	271	} else if (argv[i][0] == '-')
	272	return -EINVAL;
ca8b2b02 MD	273	else
	274	s_outputname = argv[i];
	275	}
	276	if (!s_outputname)
	277	return -EINVAL;
	278	return 0;
	279	}
	280
90219914 MD	281	int main(int argc, char **argv)
90219914 MD	282	{
b522ac18	283	int fd, metadata_fd, ret;
989c73bc MD	284	DIR *dir;
989c73bc MD	285	int dir_fd;
b522ac18	286	FILE *metadata_fp;
90219914	287
ca8b2b02 MD	288	ret = parse_args(argc, argv);
ca8b2b02 MD	289	if (ret) {
39592eae	290	fprintf(stdout, "Error: invalid argument.\n");
989c73bc MD	291	usage(stdout);
989c73bc MD	292	goto error;
90219914	293	}
90219914	294
39592eae MD	295	if (s_help) {
	296	usage(stdout);
	297	exit(EXIT_SUCCESS);
	298	}
	299
ca8b2b02	300	ret = mkdir(s_outputname, S_IRWXU\|S_IRWXG);
90219914	301	if (ret) {
989c73bc MD	302	perror("mkdir");
	303	goto error;
	304	}
	305
ca8b2b02	306	dir = opendir(s_outputname);
989c73bc MD	307	if (!dir) {
	308	perror("opendir");
	309	goto error_rmdir;
	310	}
	311	dir_fd = dirfd(dir);
	312	if (dir_fd < 0) {
	313	perror("dirfd");
	314	goto error_closedir;
	315	}
	316
	317	fd = openat(dir_fd, "datastream", O_RDWR\|O_CREAT,
	318	S_IRUSR\|S_IWUSR\|S_IRGRP\|S_IWGRP);
	319	if (fd < 0) {
	320	perror("openat");
	321	goto error_closedirfd;
90219914	322	}
90219914	323
b522ac18 MD	324	metadata_fd = openat(dir_fd, "metadata", O_RDWR\|O_CREAT,
	325	S_IRUSR\|S_IWUSR\|S_IRGRP\|S_IWGRP);
	326	if (fd < 0) {
	327	perror("openat");
	328	goto error_closedatastream;
	329	}
	330	metadata_fp = fdopen(metadata_fd, "w");
	331	if (!metadata_fp) {
	332	perror("fdopen");
	333	goto error_closemetadatafd;
	334	}
	335
	336	uuid_generate(s_uuid);
	337	print_metadata(metadata_fp);
8c572eba	338	trace_text(stdin, fd);
989c73bc	339
90219914	340	close(fd);
989c73bc MD	341	exit(EXIT_SUCCESS);
	342
	343	/* error handling */
b522ac18 MD	344	error_closemetadatafd:
	345	ret = close(metadata_fd);
	346	if (ret)
	347	perror("close");
	348	error_closedatastream:
	349	ret = close(fd);
	350	if (ret)
	351	perror("close");
989c73bc MD	352	error_closedirfd:
	353	ret = close(dir_fd);
	354	if (ret)
	355	perror("close");
	356	error_closedir:
	357	ret = closedir(dir);
	358	if (ret)
	359	perror("closedir");
	360	error_rmdir:
ca8b2b02	361	ret = rmdir(s_outputname);
989c73bc MD	362	if (ret)
	363	perror("rmdir");
	364	error:
	365	exit(EXIT_FAILURE);
90219914	366	}