[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 NSEC_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 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  trace_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);

	/* trace_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, nsec;
	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, &nsec);
		if (ret == 2) {
			*tline = strchr(line, ']');
			if ((*tline)[1] == ' ')
				(*tline)++;
			*tlen = len + line - *tline;
			*ts = (uint64_t) sec * NSEC_PER_SEC + (uint64_t) nsec;
		}
	}
	/* 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 OUTPUT\n");
	fprintf(fp, "\n");
	fprintf(fp, "  OUTPUT                         Output trace path\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
			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) {
		usage(stdout);
		goto error;
	}

	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
ca8b2b02 MD	38	#define NSEC_PER_SEC 1000000UL
ca8b2b02 MD	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;
	48	static uuid_t s_uuid;
	49
b522ac18 MD	50	/* Metadata format string */
b522ac18 MD	51	static const char metadata_fmt[] =
989c73bc MD	52	"typealias integer { size = 8; align = 8; signed = false; } := uint8_t;\n"
	53	"typealias integer { size = 32; align = 32; signed = false; } := uint32_t;\n"
	54	"\n"
	55	"trace {\n"
c818559a MD	56	" major = %u;\n" /* major (e.g. 0) */
c818559a MD	57	" minor = %u;\n" /* minor (e.g. 1) */
b522ac18	58	" uuid = \"%s\";\n" /* UUID */
989c73bc MD	59	" byte_order = %s;\n" /* be or le */
	60	" packet.header := struct {\n"
	61	" uint32_t magic;\n"
	62	" uint8_t trace_uuid[16];\n"
	63	" };\n"
	64	"};\n"
	65	"\n"
	66	"stream {\n"
	67	" packet.context := struct {\n"
	68	" uint32_t content_size;\n"
	69	" uint32_t packet_size;\n"
	70	" };\n"
ca8b2b02	71	"%s" /* Stream event header (opt.) */
989c73bc MD	72	"};\n"
	73	"\n"
	74	"event {\n"
	75	" name = string;\n"
	76	" fields := struct { string str; };\n"
	77	"};\n";
	78
ca8b2b02 MD	79	static const char metadata_stream_event_header_timestamp[] =
	80	" typealias integer { size = 64; align = 64; signed = false; } := uint64_t;\n"
	81	" event.header := struct {\n"
	82	" uint64_t timestamp;\n"
	83	" };\n";
8c572eba	84
b522ac18 MD	85	static
	86	void print_metadata(FILE *fp)
	87	{
	88	char uuid_str[UUID_STR_LEN];
	89
	90	uuid_unparse(s_uuid, uuid_str);
	91	fprintf(fp, metadata_fmt,
c818559a MD	92	BABELTRACE_VERSION_MAJOR,
c818559a MD	93	BABELTRACE_VERSION_MINOR,
b522ac18	94	uuid_str,
ca8b2b02 MD	95	BYTE_ORDER == LITTLE_ENDIAN ? "le" : "be",
ca8b2b02 MD	96	s_timestamp ? metadata_stream_event_header_timestamp : "");
b522ac18 MD	97	}
b522ac18 MD	98
8c572eba	99	static
46322b33	100	void write_packet_header(struct ctf_stream_pos *pos, uuid_t uuid)
8c572eba	101	{
46322b33	102	struct ctf_stream_pos dummy;
8c572eba MD	103
8c572eba MD	104	/* magic */
46322b33 MD	105	ctf_dummy_pos(pos, &dummy);
	106	ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	107	ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	108	assert(!ctf_pos_packet(&dummy));
8c572eba	109
46322b33 MD	110	ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
	111	(uint32_t ) ctf_get_pos_addr(pos) = 0xC1FC1FC1;
	112	ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
8c572eba MD	113
8c572eba MD	114	/* trace_uuid */
46322b33 MD	115	ctf_dummy_pos(pos, &dummy);
	116	ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
	117	ctf_move_pos(&dummy, 16 * CHAR_BIT);
	118	assert(!ctf_pos_packet(&dummy));
	119
	120	ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT);
	121	memcpy(ctf_get_pos_addr(pos), uuid, 16);
	122	ctf_move_pos(pos, 16 * CHAR_BIT);
8c572eba MD	123	}
	124
	125	static
46322b33	126	void write_packet_context(struct ctf_stream_pos *pos)
8c572eba	127	{
46322b33	128	struct ctf_stream_pos dummy;
8c572eba MD	129
8c572eba MD	130	/* content_size */
46322b33 MD	131	ctf_dummy_pos(pos, &dummy);
	132	ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	133	ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	134	assert(!ctf_pos_packet(&dummy));
8c572eba	135
46322b33 MD	136	ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
	137	(uint32_t ) ctf_get_pos_addr(pos) = -1U; /* Not known yet */
	138	pos->content_size_loc = (uint32_t *) ctf_get_pos_addr(pos);
	139	ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
8c572eba MD	140
8c572eba MD	141	/* packet_size */
46322b33 MD	142	ctf_dummy_pos(pos, &dummy);
	143	ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	144	ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
	145	assert(!ctf_pos_packet(&dummy));
8c572eba	146
46322b33 MD	147	ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
	148	(uint32_t ) ctf_get_pos_addr(pos) = pos->packet_size;
	149	ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
8c572eba MD	150	}
8c572eba MD	151
ca8b2b02 MD	152	static
	153	void write_event_header(struct ctf_stream_pos pos, char line,
	154	char *tline, size_t len, size_t tlen,
	155	uint64_t *ts)
	156	{
	157	unsigned long sec, nsec;
	158	int ret;
	159
	160	if (!s_timestamp)
	161	return;
	162
	163	/* Only need to be executed on first pass (dummy) */
	164	if (pos->dummy) {
	165	/* Extract time from input line */
	166	ret = sscanf(line, "[%lu.%lu] ", &sec, &nsec);
	167	if (ret == 2) {
	168	*tline = strchr(line, ']');
	169	if ((*tline)[1] == ' ')
	170	(*tline)++;
	171	tlen = len + line - tline;
	172	ts = (uint64_t) sec NSEC_PER_SEC + (uint64_t) nsec;
	173	}
	174	}
	175	/* timestamp */
	176	ctf_align_pos(pos, sizeof(uint64_t) * CHAR_BIT);
	177	if (!pos->dummy)
	178	(uint32_t ) ctf_get_pos_addr(pos) = *ts;
	179	ctf_move_pos(pos, sizeof(uint64_t) * CHAR_BIT);
	180	}
	181
8c572eba	182	static
46322b33	183	void trace_string(char line, struct ctf_stream_pos pos, size_t len)
8c572eba	184	{
46322b33	185	struct ctf_stream_pos dummy;
8c572eba	186	int attempt = 0;
ca8b2b02 MD	187	char tline = line; / tline is start of text, after timestamp */
	188	size_t tlen = len;
	189	uint64_t ts = 0;
8c572eba MD	190
	191	printf_debug("read: %s\n", line);
	192	retry:
46322b33	193	ctf_dummy_pos(pos, &dummy);
ca8b2b02	194	write_event_header(&dummy, line, &tline, len, &tlen, &ts);
46322b33	195	ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
ca8b2b02	196	ctf_move_pos(&dummy, tlen * CHAR_BIT);
46322b33	197	if (ctf_pos_packet(&dummy)) {
46322b33	198	ctf_pos_pad_packet(pos);
8c572eba MD	199	write_packet_header(pos, s_uuid);
	200	write_packet_context(pos);
	201	if (attempt++ == 1) {
	202	fprintf(stdout, "[Error] Line too large for packet size (%zukB) (discarded)\n",
	203	pos->packet_size / CHAR_BIT / 1024);
	204	return;
	205	}
	206	goto retry;
	207	}
	208
ca8b2b02	209	write_event_header(pos, line, &tline, len, &tlen, &ts);
46322b33	210	ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT);
ca8b2b02 MD	211	memcpy(ctf_get_pos_addr(pos), tline, tlen);
ca8b2b02 MD	212	ctf_move_pos(pos, tlen * CHAR_BIT);
8c572eba MD	213	}
	214
	215	static
	216	void trace_text(FILE *input, int output)
	217	{
46322b33	218	struct ctf_stream_pos pos;
8c572eba MD	219	ssize_t len;
	220	char line = NULL, nl;
	221	size_t linesize;
	222
989c73bc	223	ctf_init_pos(&pos, output, O_RDWR);
8c572eba MD	224
	225	write_packet_header(&pos, s_uuid);
	226	write_packet_context(&pos);
	227	for (;;) {
	228	len = getline(&line, &linesize, input);
	229	if (len < 0)
	230	break;
	231	nl = strrchr(line, '\n');
	232	if (nl)
	233	*nl = '\0';
	234	trace_string(line, &pos, nl - line + 1);
	235	}
46322b33	236	ctf_fini_pos(&pos);
8c572eba	237	}
90219914	238
ca8b2b02 MD	239	static
ca8b2b02 MD	240	void usage(FILE *fp)
989c73bc MD	241	{
	242	fprintf(fp, "BabelTrace Log Converter %u.%u\n",
	243	BABELTRACE_VERSION_MAJOR,
	244	BABELTRACE_VERSION_MINOR);
	245	fprintf(fp, "\n");
	246	fprintf(fp, "Convert for a text log (read from standard input) to CTF.\n");
	247	fprintf(fp, "\n");
	248	fprintf(fp, "usage : babeltrace-log OUTPUT\n");
	249	fprintf(fp, "\n");
	250	fprintf(fp, " OUTPUT Output trace path\n");
	251	fprintf(fp, "\n");
	252	}
	253
ca8b2b02 MD	254	static
	255	int parse_args(int argc, char **argv)
	256	{
	257	int i;
	258
	259	for (i = 1; i < argc; i++) {
	260	if (!strcmp(argv[i], "-t"))
	261	s_timestamp = 1;
	262	else
	263	s_outputname = argv[i];
	264	}
	265	if (!s_outputname)
	266	return -EINVAL;
	267	return 0;
	268	}
	269
90219914 MD	270	int main(int argc, char **argv)
90219914 MD	271	{
b522ac18	272	int fd, metadata_fd, ret;
989c73bc MD	273	DIR *dir;
989c73bc MD	274	int dir_fd;
b522ac18	275	FILE *metadata_fp;
90219914	276
ca8b2b02 MD	277	ret = parse_args(argc, argv);
ca8b2b02 MD	278	if (ret) {
989c73bc MD	279	usage(stdout);
989c73bc MD	280	goto error;
90219914	281	}
90219914	282
ca8b2b02	283	ret = mkdir(s_outputname, S_IRWXU\|S_IRWXG);
90219914	284	if (ret) {
989c73bc MD	285	perror("mkdir");
	286	goto error;
	287	}
	288
ca8b2b02	289	dir = opendir(s_outputname);
989c73bc MD	290	if (!dir) {
	291	perror("opendir");
	292	goto error_rmdir;
	293	}
	294	dir_fd = dirfd(dir);
	295	if (dir_fd < 0) {
	296	perror("dirfd");
	297	goto error_closedir;
	298	}
	299
	300	fd = openat(dir_fd, "datastream", O_RDWR\|O_CREAT,
	301	S_IRUSR\|S_IWUSR\|S_IRGRP\|S_IWGRP);
	302	if (fd < 0) {
	303	perror("openat");
	304	goto error_closedirfd;
90219914	305	}
90219914	306
b522ac18 MD	307	metadata_fd = openat(dir_fd, "metadata", O_RDWR\|O_CREAT,
	308	S_IRUSR\|S_IWUSR\|S_IRGRP\|S_IWGRP);
	309	if (fd < 0) {
	310	perror("openat");
	311	goto error_closedatastream;
	312	}
	313	metadata_fp = fdopen(metadata_fd, "w");
	314	if (!metadata_fp) {
	315	perror("fdopen");
	316	goto error_closemetadatafd;
	317	}
	318
	319	uuid_generate(s_uuid);
	320	print_metadata(metadata_fp);
8c572eba	321	trace_text(stdin, fd);
989c73bc	322
90219914	323	close(fd);
989c73bc MD	324	exit(EXIT_SUCCESS);
	325
	326	/* error handling */
b522ac18 MD	327	error_closemetadatafd:
	328	ret = close(metadata_fd);
	329	if (ret)
	330	perror("close");
	331	error_closedatastream:
	332	ret = close(fd);
	333	if (ret)
	334	perror("close");
989c73bc MD	335	error_closedirfd:
	336	ret = close(dir_fd);
	337	if (ret)
	338	perror("close");
	339	error_closedir:
	340	ret = closedir(dir);
	341	if (ret)
	342	perror("closedir");
	343	error_rmdir:
ca8b2b02	344	ret = rmdir(s_outputname);
989c73bc MD	345	if (ret)
	346	perror("rmdir");
	347	error:
	348	exit(EXIT_FAILURE);
90219914	349	}