[thirdparty/git.git] / receive-pack.c

#include "cache.h"
#include "refs.h"
#include "pkt-line.h"
#include "run-command.h"
#include "commit.h"
#include "object.h"

static const char receive_pack_usage[] = "git-receive-pack <git-dir>";

static const char *unpacker[] = { "unpack-objects", NULL };

static int report_status;

static char capabilities[] = "report-status";
static int capabilities_sent;

static int show_ref(const char *path, const unsigned char *sha1)
{
	if (capabilities_sent)
		packet_write(1, "%s %s\n", sha1_to_hex(sha1), path);
	else
		packet_write(1, "%s %s%c%s\n",
			     sha1_to_hex(sha1), path, 0, capabilities);
	capabilities_sent = 1;
	return 0;
}

static void write_head_info(void)
{
	for_each_ref(show_ref);
	if (!capabilities_sent)
		show_ref("capabilities^{}", null_sha1);

}

struct command {
	struct command *next;
	const char *error_string;
	unsigned char old_sha1[20];
	unsigned char new_sha1[20];
	char ref_name[FLEX_ARRAY]; /* more */
};

static struct command *commands;

static int is_all_zeroes(const char *hex)
{
	int i;
	for (i = 0; i < 40; i++)
		if (*hex++ != '0')
			return 0;
	return 1;
}

static int verify_old_ref(const char *name, char *hex_contents)
{
	int fd, ret;
	char buffer[60];

	if (is_all_zeroes(hex_contents))
		return 0;
	fd = open(name, O_RDONLY);
	if (fd < 0)
		return -1;
	ret = read(fd, buffer, 40);
	close(fd);
	if (ret != 40)
		return -1;
	if (memcmp(buffer, hex_contents, 40))
		return -1;
	return 0;
}

static char update_hook[] = "hooks/update";

static int run_update_hook(const char *refname,
			   char *old_hex, char *new_hex)
{
	int code;

	if (access(update_hook, X_OK) < 0)
		return 0;
	code = run_command(update_hook, refname, old_hex, new_hex, NULL);
	switch (code) {
	case 0:
		return 0;
	case -ERR_RUN_COMMAND_FORK:
		return error("hook fork failed");
	case -ERR_RUN_COMMAND_EXEC:
		return error("hook execute failed");
	case -ERR_RUN_COMMAND_WAITPID:
		return error("waitpid failed");
	case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
		return error("waitpid is confused");
	case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
		return error("%s died of signal", update_hook);
	case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
		return error("%s died strangely", update_hook);
	default:
		error("%s exited with error code %d", update_hook, -code);
		return -code;
	}
}

static int update(struct command *cmd)
{
	const char *name = cmd->ref_name;
	unsigned char *old_sha1 = cmd->old_sha1;
	unsigned char *new_sha1 = cmd->new_sha1;
	char new_hex[60], *old_hex, *lock_name;
	int newfd, namelen, written;

	cmd->error_string = NULL;
	if (!strncmp(name, "refs/", 5) && check_ref_format(name + 5)) {
		cmd->error_string = "funny refname";
		return error("refusing to create funny ref '%s' locally",
			     name);
	}

	namelen = strlen(name);
	lock_name = xmalloc(namelen + 10);
	memcpy(lock_name, name, namelen);
	memcpy(lock_name + namelen, ".lock", 6);

	strcpy(new_hex, sha1_to_hex(new_sha1));
	old_hex = sha1_to_hex(old_sha1);
	if (!has_sha1_file(new_sha1)) {
		cmd->error_string = "bad pack";
		return error("unpack should have generated %s, "
			     "but I can't find it!", new_hex);
	}
	if (deny_non_fast_forwards && !is_null_sha1(old_sha1)) {
		struct commit *old_commit, *new_commit;
		struct commit_list *bases, *ent;

		old_commit = (struct commit *)parse_object(old_sha1);
		new_commit = (struct commit *)parse_object(new_sha1);
		bases = get_merge_bases(old_commit, new_commit, 1);
		for (ent = bases; ent; ent = ent->next)
			if (!hashcmp(old_sha1, ent->item->object.sha1))
				break;
		free_commit_list(bases);
		if (!ent)
			return error("denying non-fast forward;"
				     " you should pull first");
	}
	safe_create_leading_directories(lock_name);

	newfd = open(lock_name, O_CREAT | O_EXCL | O_WRONLY, 0666);
	if (newfd < 0) {
		cmd->error_string = "can't lock";
		return error("unable to create %s (%s)",
			     lock_name, strerror(errno));
	}

	/* Write the ref with an ending '\n' */
	new_hex[40] = '\n';
	new_hex[41] = 0;
	written = write(newfd, new_hex, 41);
	/* Remove the '\n' again */
	new_hex[40] = 0;

	close(newfd);
	if (written != 41) {
		unlink(lock_name);
		cmd->error_string = "can't write";
		return error("unable to write %s", lock_name);
	}
	if (verify_old_ref(name, old_hex) < 0) {
		unlink(lock_name);
		cmd->error_string = "raced";
		return error("%s changed during push", name);
	}
	if (run_update_hook(name, old_hex, new_hex)) {
		unlink(lock_name);
		cmd->error_string = "hook declined";
		return error("hook declined to update %s", name);
	}
	else if (rename(lock_name, name) < 0) {
		unlink(lock_name);
		cmd->error_string = "can't rename";
		return error("unable to replace %s", name);
	}
	else {
		fprintf(stderr, "%s: %s -> %s\n", name, old_hex, new_hex);
		return 0;
	}
}

static char update_post_hook[] = "hooks/post-update";

static void run_update_post_hook(struct command *cmd)
{
	struct command *cmd_p;
	int argc;
	const char **argv;

	if (access(update_post_hook, X_OK) < 0)
		return;
	for (argc = 1, cmd_p = cmd; cmd_p; cmd_p = cmd_p->next) {
		if (cmd_p->error_string)
			continue;
		argc++;
	}
	argv = xmalloc(sizeof(*argv) * (1 + argc));
	argv[0] = update_post_hook;

	for (argc = 1, cmd_p = cmd; cmd_p; cmd_p = cmd_p->next) {
		char *p;
		if (cmd_p->error_string)
			continue;
		p = xmalloc(strlen(cmd_p->ref_name) + 1);
		strcpy(p, cmd_p->ref_name);
		argv[argc] = p;
		argc++;
	}
	argv[argc] = NULL;
	run_command_v_opt(argc, argv, RUN_COMMAND_NO_STDIO);
}

/*
 * This gets called after(if) we've successfully
 * unpacked the data payload.
 */
static void execute_commands(void)
{
	struct command *cmd = commands;

	while (cmd) {
		update(cmd);
		cmd = cmd->next;
	}
	run_update_post_hook(commands);
}

static void read_head_info(void)
{
	struct command **p = &commands;
	for (;;) {
		static char line[1000];
		unsigned char old_sha1[20], new_sha1[20];
		struct command *cmd;
		char *refname;
		int len, reflen;

		len = packet_read_line(0, line, sizeof(line));
		if (!len)
			break;
		if (line[len-1] == '\n')
			line[--len] = 0;
		if (len < 83 ||
		    line[40] != ' ' ||
		    line[81] != ' ' ||
		    get_sha1_hex(line, old_sha1) ||
		    get_sha1_hex(line + 41, new_sha1))
			die("protocol error: expected old/new/ref, got '%s'",
			    line);

		refname = line + 82;
		reflen = strlen(refname);
		if (reflen + 82 < len) {
			if (strstr(refname + reflen + 1, "report-status"))
				report_status = 1;
		}
		cmd = xmalloc(sizeof(struct command) + len - 80);
		hashcpy(cmd->old_sha1, old_sha1);
		hashcpy(cmd->new_sha1, new_sha1);
		memcpy(cmd->ref_name, line + 82, len - 81);
		cmd->error_string = "n/a (unpacker error)";
		cmd->next = NULL;
		*p = cmd;
		p = &cmd->next;
	}
}

static const char *unpack(void)
{
	int code = run_command_v_opt(1, unpacker, RUN_GIT_CMD);

	switch (code) {
	case 0:
		return NULL;
	case -ERR_RUN_COMMAND_FORK:
		return "unpack fork failed";
	case -ERR_RUN_COMMAND_EXEC:
		return "unpack execute failed";
	case -ERR_RUN_COMMAND_WAITPID:
		return "waitpid failed";
	case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
		return "waitpid is confused";
	case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
		return "unpacker died of signal";
	case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
		return "unpacker died strangely";
	default:
		return "unpacker exited with error code";
	}
}

static void report(const char *unpack_status)
{
	struct command *cmd;
	packet_write(1, "unpack %s\n",
		     unpack_status ? unpack_status : "ok");
	for (cmd = commands; cmd; cmd = cmd->next) {
		if (!cmd->error_string)
			packet_write(1, "ok %s\n",
				     cmd->ref_name);
		else
			packet_write(1, "ng %s %s\n",
				     cmd->ref_name, cmd->error_string);
	}
	packet_flush(1);
}

int main(int argc, char **argv)
{
	int i;
	char *dir = NULL;

	argv++;
	for (i = 1; i < argc; i++) {
		char *arg = *argv++;

		if (*arg == '-') {
			/* Do flag handling here */
			usage(receive_pack_usage);
		}
		if (dir)
			usage(receive_pack_usage);
		dir = arg;
	}
	if (!dir)
		usage(receive_pack_usage);

	if(!enter_repo(dir, 0))
		die("'%s': unable to chdir or not a git archive", dir);

	write_head_info();

	/* EOF */
	packet_flush(1);

	read_head_info();
	if (commands) {
		const char *unpack_status = unpack();
		if (!unpack_status)
			execute_commands();
		if (report_status)
			report(unpack_status);
	}
	return 0;
}
Commit	Line	Data
575f4974	1	#include "cache.h"
8a65ff76	2	#include "refs.h"
f3a3214e	3	#include "pkt-line.h"
b1bf95bb	4	#include "run-command.h"
11031d7e JS	5	#include "commit.h"
11031d7e JS	6	#include "object.h"
575f4974	7
d0efc8a7	8	static const char receive_pack_usage[] = "git-receive-pack <git-dir>";
575f4974	9
9201c707	10	static const char *unpacker[] = { "unpack-objects", NULL };
575f4974	11
96f1e58f	12	static int report_status;
cfee10a7 JH	13
cfee10a7 JH	14	static char capabilities[] = "report-status";
96f1e58f	15	static int capabilities_sent;
cfee10a7	16
944d8589	17	static int show_ref(const char path, const unsigned char sha1)
575f4974	18	{
cfee10a7 JH	19	if (capabilities_sent)
	20	packet_write(1, "%s %s\n", sha1_to_hex(sha1), path);
	21	else
	22	packet_write(1, "%s %s%c%s\n",
	23	sha1_to_hex(sha1), path, 0, capabilities);
	24	capabilities_sent = 1;
8a65ff76	25	return 0;
575f4974 LT	26	}
575f4974 LT	27
8a65ff76	28	static void write_head_info(void)
575f4974	29	{
8a65ff76	30	for_each_ref(show_ref);
cfee10a7 JH	31	if (!capabilities_sent)
	32	show_ref("capabilities^{}", null_sha1);
	33
575f4974 LT	34	}
575f4974 LT	35
eb1af2df LT	36	struct command {
eb1af2df LT	37	struct command *next;
cfee10a7	38	const char *error_string;
eb1af2df LT	39	unsigned char old_sha1[20];
eb1af2df LT	40	unsigned char new_sha1[20];
8f1d2e6f	41	char ref_name[FLEX_ARRAY]; /* more */
575f4974 LT	42	};
575f4974 LT	43
96f1e58f	44	static struct command *commands;
575f4974	45
f65fdf04 LT	46	static int is_all_zeroes(const char *hex)
	47	{
	48	int i;
	49	for (i = 0; i < 40; i++)
	50	if (*hex++ != '0')
	51	return 0;
	52	return 1;
	53	}
	54
2eca23da LT	55	static int verify_old_ref(const char name, char hex_contents)
	56	{
	57	int fd, ret;
	58	char buffer[60];
	59
f65fdf04 LT	60	if (is_all_zeroes(hex_contents))
f65fdf04 LT	61	return 0;
2eca23da LT	62	fd = open(name, O_RDONLY);
	63	if (fd < 0)
	64	return -1;
	65	ret = read(fd, buffer, 40);
	66	close(fd);
	67	if (ret != 40)
	68	return -1;
	69	if (memcmp(buffer, hex_contents, 40))
	70	return -1;
	71	return 0;
	72	}
	73
b1bf95bb JW	74	static char update_hook[] = "hooks/update";
	75
	76	static int run_update_hook(const char *refname,
	77	char old_hex, char new_hex)
	78	{
	79	int code;
	80
	81	if (access(update_hook, X_OK) < 0)
	82	return 0;
	83	code = run_command(update_hook, refname, old_hex, new_hex, NULL);
	84	switch (code) {
	85	case 0:
	86	return 0;
	87	case -ERR_RUN_COMMAND_FORK:
cfee10a7	88	return error("hook fork failed");
b1bf95bb	89	case -ERR_RUN_COMMAND_EXEC:
cfee10a7	90	return error("hook execute failed");
b1bf95bb	91	case -ERR_RUN_COMMAND_WAITPID:
cfee10a7	92	return error("waitpid failed");
b1bf95bb	93	case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
cfee10a7	94	return error("waitpid is confused");
b1bf95bb	95	case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
bd2afde8	96	return error("%s died of signal", update_hook);
b1bf95bb	97	case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
cfee10a7	98	return error("%s died strangely", update_hook);
b1bf95bb JW	99	default:
	100	error("%s exited with error code %d", update_hook, -code);
	101	return -code;
	102	}
	103	}
	104
cfee10a7	105	static int update(struct command *cmd)
2eca23da	106	{
cfee10a7 JH	107	const char *name = cmd->ref_name;
	108	unsigned char *old_sha1 = cmd->old_sha1;
	109	unsigned char *new_sha1 = cmd->new_sha1;
2eca23da LT	110	char new_hex[60], old_hex, lock_name;
	111	int newfd, namelen, written;
	112
cfee10a7 JH	113	cmd->error_string = NULL;
	114	if (!strncmp(name, "refs/", 5) && check_ref_format(name + 5)) {
	115	cmd->error_string = "funny refname";
d8a1deec JH	116	return error("refusing to create funny ref '%s' locally",
d8a1deec JH	117	name);
cfee10a7	118	}
d8a1deec	119
2eca23da LT	120	namelen = strlen(name);
	121	lock_name = xmalloc(namelen + 10);
	122	memcpy(lock_name, name, namelen);
	123	memcpy(lock_name + namelen, ".lock", 6);
	124
	125	strcpy(new_hex, sha1_to_hex(new_sha1));
2eca23da	126	old_hex = sha1_to_hex(old_sha1);
cfee10a7 JH	127	if (!has_sha1_file(new_sha1)) {
cfee10a7 JH	128	cmd->error_string = "bad pack";
19614330 JH	129	return error("unpack should have generated %s, "
19614330 JH	130	"but I can't find it!", new_hex);
cfee10a7	131	}
11031d7e JS	132	if (deny_non_fast_forwards && !is_null_sha1(old_sha1)) {
11031d7e JS	133	struct commit old_commit, new_commit;
9edd7e46	134	struct commit_list bases, ent;
11031d7e JS	135
	136	old_commit = (struct commit *)parse_object(old_sha1);
	137	new_commit = (struct commit *)parse_object(new_sha1);
9edd7e46 JS	138	bases = get_merge_bases(old_commit, new_commit, 1);
	139	for (ent = bases; ent; ent = ent->next)
	140	if (!hashcmp(old_sha1, ent->item->object.sha1))
11031d7e	141	break;
9edd7e46 JS	142	free_commit_list(bases);
9edd7e46 JS	143	if (!ent)
11031d7e	144	return error("denying non-fast forward;"
9edd7e46	145	" you should pull first");
11031d7e	146	}
29f3b3de JH	147	safe_create_leading_directories(lock_name);
29f3b3de JH	148
f312de01	149	newfd = open(lock_name, O_CREAT \| O_EXCL \| O_WRONLY, 0666);
cfee10a7 JH	150	if (newfd < 0) {
cfee10a7 JH	151	cmd->error_string = "can't lock";
19614330 JH	152	return error("unable to create %s (%s)",
19614330 JH	153	lock_name, strerror(errno));
cfee10a7	154	}
f65fdf04 LT	155
	156	/* Write the ref with an ending '\n' */
	157	new_hex[40] = '\n';
	158	new_hex[41] = 0;
2eca23da	159	written = write(newfd, new_hex, 41);
f65fdf04 LT	160	/* Remove the '\n' again */
	161	new_hex[40] = 0;
	162
2eca23da LT	163	close(newfd);
	164	if (written != 41) {
	165	unlink(lock_name);
cfee10a7	166	cmd->error_string = "can't write";
19614330	167	return error("unable to write %s", lock_name);
2eca23da LT	168	}
	169	if (verify_old_ref(name, old_hex) < 0) {
	170	unlink(lock_name);
cfee10a7	171	cmd->error_string = "raced";
19614330	172	return error("%s changed during push", name);
2eca23da	173	}
b1bf95bb JW	174	if (run_update_hook(name, old_hex, new_hex)) {
b1bf95bb JW	175	unlink(lock_name);
cfee10a7	176	cmd->error_string = "hook declined";
bd2afde8	177	return error("hook declined to update %s", name);
b1bf95bb JW	178	}
b1bf95bb JW	179	else if (rename(lock_name, name) < 0) {
2eca23da	180	unlink(lock_name);
cfee10a7	181	cmd->error_string = "can't rename";
19614330	182	return error("unable to replace %s", name);
2eca23da	183	}
19614330	184	else {
b1bf95bb	185	fprintf(stderr, "%s: %s -> %s\n", name, old_hex, new_hex);
19614330 JH	186	return 0;
19614330 JH	187	}
2eca23da LT	188	}
2eca23da LT	189
19614330 JH	190	static char update_post_hook[] = "hooks/post-update";
	191
	192	static void run_update_post_hook(struct command *cmd)
	193	{
	194	struct command *cmd_p;
	195	int argc;
9201c707	196	const char **argv;
19614330 JH	197
	198	if (access(update_post_hook, X_OK) < 0)
	199	return;
	200	for (argc = 1, cmd_p = cmd; cmd_p; cmd_p = cmd_p->next) {
cfee10a7	201	if (cmd_p->error_string)
19614330 JH	202	continue;
	203	argc++;
	204	}
	205	argv = xmalloc(sizeof(argv) (1 + argc));
	206	argv[0] = update_post_hook;
	207
	208	for (argc = 1, cmd_p = cmd; cmd_p; cmd_p = cmd_p->next) {
9201c707	209	char *p;
cfee10a7	210	if (cmd_p->error_string)
19614330	211	continue;
9201c707 JH	212	p = xmalloc(strlen(cmd_p->ref_name) + 1);
	213	strcpy(p, cmd_p->ref_name);
	214	argv[argc] = p;
19614330 JH	215	argc++;
	216	}
	217	argv[argc] = NULL;
128aed68	218	run_command_v_opt(argc, argv, RUN_COMMAND_NO_STDIO);
19614330	219	}
2eca23da	220
575f4974 LT	221	/*
	222	* This gets called after(if) we've successfully
	223	* unpacked the data payload.
	224	*/
	225	static void execute_commands(void)
	226	{
eb1af2df LT	227	struct command *cmd = commands;
	228
	229	while (cmd) {
cfee10a7	230	update(cmd);
eb1af2df	231	cmd = cmd->next;
575f4974	232	}
19614330	233	run_update_post_hook(commands);
575f4974 LT	234	}
	235
	236	static void read_head_info(void)
	237	{
eb1af2df	238	struct command **p = &commands;
575f4974 LT	239	for (;;) {
575f4974 LT	240	static char line[1000];
eb1af2df LT	241	unsigned char old_sha1[20], new_sha1[20];
eb1af2df LT	242	struct command *cmd;
cfee10a7 JH	243	char *refname;
cfee10a7 JH	244	int len, reflen;
eb1af2df LT	245
eb1af2df LT	246	len = packet_read_line(0, line, sizeof(line));
575f4974 LT	247	if (!len)
575f4974 LT	248	break;
eb1af2df LT	249	if (line[len-1] == '\n')
	250	line[--len] = 0;
	251	if (len < 83 \|\|
	252	line[40] != ' ' \|\|
	253	line[81] != ' ' \|\|
	254	get_sha1_hex(line, old_sha1) \|\|
	255	get_sha1_hex(line + 41, new_sha1))
cfee10a7 JH	256	die("protocol error: expected old/new/ref, got '%s'",
	257	line);
	258
	259	refname = line + 82;
	260	reflen = strlen(refname);
	261	if (reflen + 82 < len) {
	262	if (strstr(refname + reflen + 1, "report-status"))
	263	report_status = 1;
	264	}
eb1af2df	265	cmd = xmalloc(sizeof(struct command) + len - 80);
e702496e SP	266	hashcpy(cmd->old_sha1, old_sha1);
e702496e SP	267	hashcpy(cmd->new_sha1, new_sha1);
eb1af2df	268	memcpy(cmd->ref_name, line + 82, len - 81);
cfee10a7	269	cmd->error_string = "n/a (unpacker error)";
eb1af2df LT	270	cmd->next = NULL;
	271	*p = cmd;
	272	p = &cmd->next;
575f4974 LT	273	}
	274	}
	275
861ed121	276	static const char *unpack(void)
575f4974	277	{
77cb17e9	278	int code = run_command_v_opt(1, unpacker, RUN_GIT_CMD);
cfee10a7	279
b1bf95bb JW	280	switch (code) {
b1bf95bb JW	281	case 0:
cfee10a7	282	return NULL;
b1bf95bb	283	case -ERR_RUN_COMMAND_FORK:
cfee10a7	284	return "unpack fork failed";
b1bf95bb	285	case -ERR_RUN_COMMAND_EXEC:
cfee10a7	286	return "unpack execute failed";
b1bf95bb	287	case -ERR_RUN_COMMAND_WAITPID:
cfee10a7	288	return "waitpid failed";
b1bf95bb	289	case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
cfee10a7	290	return "waitpid is confused";
b1bf95bb	291	case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
cfee10a7	292	return "unpacker died of signal";
b1bf95bb	293	case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
cfee10a7	294	return "unpacker died strangely";
b1bf95bb	295	default:
cfee10a7 JH	296	return "unpacker exited with error code";
	297	}
	298	}
	299
	300	static void report(const char *unpack_status)
	301	{
	302	struct command *cmd;
	303	packet_write(1, "unpack %s\n",
	304	unpack_status ? unpack_status : "ok");
	305	for (cmd = commands; cmd; cmd = cmd->next) {
	306	if (!cmd->error_string)
	307	packet_write(1, "ok %s\n",
	308	cmd->ref_name);
	309	else
	310	packet_write(1, "ng %s %s\n",
	311	cmd->ref_name, cmd->error_string);
575f4974	312	}
cfee10a7	313	packet_flush(1);
575f4974 LT	314	}
	315
	316	int main(int argc, char **argv)
	317	{
d0efc8a7	318	int i;
8d630132	319	char *dir = NULL;
575f4974 LT	320
	321	argv++;
	322	for (i = 1; i < argc; i++) {
8d630132	323	char arg = argv++;
575f4974 LT	324
575f4974 LT	325	if (*arg == '-') {
575f4974 LT	326	/* Do flag handling here */
	327	usage(receive_pack_usage);
	328	}
d0efc8a7 LT	329	if (dir)
d0efc8a7 LT	330	usage(receive_pack_usage);
575f4974	331	dir = arg;
575f4974 LT	332	}
	333	if (!dir)
	334	usage(receive_pack_usage);
	335
8d630132 AE	336	if(!enter_repo(dir, 0))
8d630132 AE	337	die("'%s': unable to chdir or not a git archive", dir);
575f4974	338
8a65ff76	339	write_head_info();
575f4974 LT	340
575f4974 LT	341	/* EOF */
f3a3214e	342	packet_flush(1);
575f4974 LT	343
575f4974 LT	344	read_head_info();
7f8e9828	345	if (commands) {
861ed121	346	const char *unpack_status = unpack();
cfee10a7 JH	347	if (!unpack_status)
	348	execute_commands();
	349	if (report_status)
	350	report(unpack_status);
7f8e9828	351	}
575f4974 LT	352	return 0;
575f4974 LT	353	}