Exemple #1
0
int main(int argc, char **argv)
{
	int listen_port = 0;
	struct string_list listen_addr = STRING_LIST_INIT_NODUP;
	int serve_mode = 0, inetd_mode = 0;
	const char *pid_file = NULL, *user_name = NULL, *group_name = NULL;
	int detach = 0;
	struct credentials *cred = NULL;
	int i;

	git_setup_gettext();

	git_extract_argv0_path(argv[0]);

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

		if (!prefixcmp(arg, "--listen=")) {
			string_list_append(&listen_addr, xstrdup_tolower(arg + 9));
			continue;
		}
		if (!prefixcmp(arg, "--port=")) {
			char *end;
			unsigned long n;
			n = strtoul(arg+7, &end, 0);
			if (arg[7] && !*end) {
				listen_port = n;
				continue;
			}
		}
		if (!strcmp(arg, "--serve")) {
			serve_mode = 1;
			continue;
		}
		if (!strcmp(arg, "--inetd")) {
			inetd_mode = 1;
			log_syslog = 1;
			continue;
		}
		if (!strcmp(arg, "--verbose")) {
			verbose = 1;
			continue;
		}
		if (!strcmp(arg, "--syslog")) {
			log_syslog = 1;
			continue;
		}
		if (!strcmp(arg, "--export-all")) {
			export_all_trees = 1;
			continue;
		}
		if (!prefixcmp(arg, "--access-hook=")) {
			access_hook = arg + 14;
			continue;
		}
		if (!prefixcmp(arg, "--timeout=")) {
			timeout = atoi(arg+10);
			continue;
		}
		if (!prefixcmp(arg, "--init-timeout=")) {
			init_timeout = atoi(arg+15);
			continue;
		}
		if (!prefixcmp(arg, "--max-connections=")) {
			max_connections = atoi(arg+18);
			if (max_connections < 0)
				max_connections = 0;	        /* unlimited */
			continue;
		}
		if (!strcmp(arg, "--strict-paths")) {
			strict_paths = 1;
			continue;
		}
		if (!prefixcmp(arg, "--base-path=")) {
			base_path = arg+12;
			continue;
		}
		if (!strcmp(arg, "--base-path-relaxed")) {
			base_path_relaxed = 1;
			continue;
		}
		if (!prefixcmp(arg, "--interpolated-path=")) {
			interpolated_path = arg+20;
			continue;
		}
		if (!strcmp(arg, "--reuseaddr")) {
			reuseaddr = 1;
			continue;
		}
		if (!strcmp(arg, "--user-path")) {
			user_path = "";
			continue;
		}
		if (!prefixcmp(arg, "--user-path=")) {
			user_path = arg + 12;
			continue;
		}
		if (!prefixcmp(arg, "--pid-file=")) {
			pid_file = arg + 11;
			continue;
		}
		if (!strcmp(arg, "--detach")) {
			detach = 1;
			log_syslog = 1;
			continue;
		}
		if (!prefixcmp(arg, "--user="******"--group=")) {
			group_name = arg + 8;
			continue;
		}
		if (!prefixcmp(arg, "--enable=")) {
			enable_service(arg + 9, 1);
			continue;
		}
		if (!prefixcmp(arg, "--disable=")) {
			enable_service(arg + 10, 0);
			continue;
		}
		if (!prefixcmp(arg, "--allow-override=")) {
			make_service_overridable(arg + 17, 1);
			continue;
		}
		if (!prefixcmp(arg, "--forbid-override=")) {
			make_service_overridable(arg + 18, 0);
			continue;
		}
		if (!prefixcmp(arg, "--informative-errors")) {
			informative_errors = 1;
			continue;
		}
		if (!prefixcmp(arg, "--no-informative-errors")) {
			informative_errors = 0;
			continue;
		}
		if (!strcmp(arg, "--")) {
			ok_paths = &argv[i+1];
			break;
		} else if (arg[0] != '-') {
			ok_paths = &argv[i];
			break;
		}

		usage(daemon_usage);
	}

	if (log_syslog) {
		openlog("git-daemon", LOG_PID, LOG_DAEMON);
		set_die_routine(daemon_die);
	} else
		/* avoid splitting a message in the middle */
		setvbuf(stderr, NULL, _IOFBF, 4096);

	if (inetd_mode && (detach || group_name || user_name))
		die("--detach, --user and --group are incompatible with --inetd");

	if (inetd_mode && (listen_port || (listen_addr.nr > 0)))
		die("--listen= and --port= are incompatible with --inetd");
	else if (listen_port == 0)
		listen_port = DEFAULT_GIT_PORT;

	if (group_name && !user_name)
		die("--group supplied without --user");

	if (user_name)
		cred = prepare_credentials(user_name, group_name);

	if (strict_paths && (!ok_paths || !*ok_paths))
		die("option --strict-paths requires a whitelist");

	if (base_path && !is_directory(base_path))
		die("base-path '%s' does not exist or is not a directory",
		    base_path);

	if (inetd_mode) {
		if (!freopen("/dev/null", "w", stderr))
			die_errno("failed to redirect stderr to /dev/null");
	}

	if (inetd_mode || serve_mode)
		return execute();

	if (detach)
		daemonize();
	else
		sanitize_stdfds();

	if (pid_file)
		store_pid(pid_file);

	/* prepare argv for serving-processes */
	cld_argv = xmalloc(sizeof (char *) * (argc + 2));
	cld_argv[0] = argv[0];	/* git-daemon */
	cld_argv[1] = "--serve";
	for (i = 1; i < argc; ++i)
		cld_argv[i+1] = argv[i];
	cld_argv[argc+1] = NULL;

	return serve(&listen_addr, listen_port, cred);
}
Exemple #2
0
/*
 * Read the host as supplied by the client connection.
 */
static void parse_host_arg(char *extra_args, int buflen)
{
	char *val;
	int vallen;
	char *end = extra_args + buflen;

	if (extra_args < end && *extra_args) {
		saw_extended_args = 1;
		if (strncasecmp("host=", extra_args, 5) == 0) {
			val = extra_args + 5;
			vallen = strlen(val) + 1;
			if (*val) {
				/* Split <host>:<port> at colon. */
				char *host;
				char *port;
				parse_host_and_port(val, &host, &port);
				if (port) {
					free(tcp_port);
					tcp_port = xstrdup(port);
				}
				free(hostname);
				hostname = xstrdup_tolower(host);
			}

			/* On to the next one */
			extra_args = val + vallen;
		}
		if (extra_args < end && *extra_args)
			die("Invalid request");
	}

	/*
	 * Locate canonical hostname and its IP address.
	 */
	if (hostname) {
#ifndef NO_IPV6
		struct addrinfo hints;
		struct addrinfo *ai;
		int gai;
		static char addrbuf[HOST_NAME_MAX + 1];

		memset(&hints, 0, sizeof(hints));
		hints.ai_flags = AI_CANONNAME;

		gai = getaddrinfo(hostname, NULL, &hints, &ai);
		if (!gai) {
			struct sockaddr_in *sin_addr = (void *)ai->ai_addr;

			inet_ntop(AF_INET, &sin_addr->sin_addr,
				  addrbuf, sizeof(addrbuf));
			free(ip_address);
			ip_address = xstrdup(addrbuf);

			free(canon_hostname);
			canon_hostname = xstrdup(ai->ai_canonname ?
						 ai->ai_canonname : ip_address);

			freeaddrinfo(ai);
		}
#else
		struct hostent *hent;
		struct sockaddr_in sa;
		char **ap;
		static char addrbuf[HOST_NAME_MAX + 1];

		hent = gethostbyname(hostname);

		ap = hent->h_addr_list;
		memset(&sa, 0, sizeof sa);
		sa.sin_family = hent->h_addrtype;
		sa.sin_port = htons(0);
		memcpy(&sa.sin_addr, *ap, hent->h_length);

		inet_ntop(hent->h_addrtype, &sa.sin_addr,
			  addrbuf, sizeof(addrbuf));

		free(canon_hostname);
		canon_hostname = xstrdup(hent->h_name);
		free(ip_address);
		ip_address = xstrdup(addrbuf);
#endif
	}
}
Exemple #3
0
int main(int argc, char **argv)
{
	int listen_port = 0;
	struct string_list listen_addr = STRING_LIST_INIT_NODUP;
	int inetd_mode = 0;
	const char *pid_file = NULL, *user_name = NULL, *group_name = NULL;
	int detach = 0;
	struct passwd *pass = NULL;
	struct group *group;
	gid_t gid = 0;
	int i;

	git_extract_argv0_path(argv[0]);

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

		if (!prefixcmp(arg, "--listen=")) {
			string_list_append(&listen_addr, xstrdup_tolower(arg + 9));
			continue;
		}
		if (!prefixcmp(arg, "--port=")) {
			char *end;
			unsigned long n;
			n = strtoul(arg+7, &end, 0);
			if (arg[7] && !*end) {
				listen_port = n;
				continue;
			}
		}
		if (!strcmp(arg, "--inetd")) {
			inetd_mode = 1;
			log_syslog = 1;
			continue;
		}
		if (!strcmp(arg, "--verbose")) {
			verbose = 1;
			continue;
		}
		if (!strcmp(arg, "--syslog")) {
			log_syslog = 1;
			continue;
		}
		if (!strcmp(arg, "--export-all")) {
			export_all_trees = 1;
			continue;
		}
		if (!prefixcmp(arg, "--timeout=")) {
			timeout = atoi(arg+10);
			continue;
		}
		if (!prefixcmp(arg, "--init-timeout=")) {
			init_timeout = atoi(arg+15);
			continue;
		}
		if (!prefixcmp(arg, "--max-connections=")) {
			max_connections = atoi(arg+18);
			if (max_connections < 0)
				max_connections = 0;	        /* unlimited */
			continue;
		}
		if (!strcmp(arg, "--strict-paths")) {
			strict_paths = 1;
			continue;
		}
		if (!prefixcmp(arg, "--base-path=")) {
			base_path = arg+12;
			continue;
		}
		if (!strcmp(arg, "--base-path-relaxed")) {
			base_path_relaxed = 1;
			continue;
		}
		if (!prefixcmp(arg, "--interpolated-path=")) {
			interpolated_path = arg+20;
			continue;
		}
		if (!strcmp(arg, "--reuseaddr")) {
			reuseaddr = 1;
			continue;
		}
		if (!strcmp(arg, "--user-path")) {
			user_path = "";
			continue;
		}
		if (!prefixcmp(arg, "--user-path=")) {
			user_path = arg + 12;
			continue;
		}
		if (!prefixcmp(arg, "--pid-file=")) {
			pid_file = arg + 11;
			continue;
		}
		if (!strcmp(arg, "--detach")) {
			detach = 1;
			log_syslog = 1;
			continue;
		}
		if (!prefixcmp(arg, "--user="******"--group=")) {
			group_name = arg + 8;
			continue;
		}
		if (!prefixcmp(arg, "--enable=")) {
			enable_service(arg + 9, 1);
			continue;
		}
		if (!prefixcmp(arg, "--disable=")) {
			enable_service(arg + 10, 0);
			continue;
		}
		if (!prefixcmp(arg, "--allow-override=")) {
			make_service_overridable(arg + 17, 1);
			continue;
		}
		if (!prefixcmp(arg, "--forbid-override=")) {
			make_service_overridable(arg + 18, 0);
			continue;
		}
		if (!strcmp(arg, "--")) {
			ok_paths = &argv[i+1];
			break;
		} else if (arg[0] != '-') {
			ok_paths = &argv[i];
			break;
		}

		usage(daemon_usage);
	}

	if (log_syslog) {
		openlog("git-daemon", LOG_PID, LOG_DAEMON);
		set_die_routine(daemon_die);
	} else
		/* avoid splitting a message in the middle */
		setvbuf(stderr, NULL, _IOLBF, 0);

	if (inetd_mode && (group_name || user_name))
		die("--user and --group are incompatible with --inetd");

	if (inetd_mode && (listen_port || (listen_addr.nr > 0)))
		die("--listen= and --port= are incompatible with --inetd");
	else if (listen_port == 0)
		listen_port = DEFAULT_GIT_PORT;

	if (group_name && !user_name)
		die("--group supplied without --user");

	if (user_name) {
		pass = getpwnam(user_name);
		if (!pass)
			die("user not found - %s", user_name);

		if (!group_name)
			gid = pass->pw_gid;
		else {
			group = getgrnam(group_name);
			if (!group)
				die("group not found - %s", group_name);

			gid = group->gr_gid;
		}
	}

	if (strict_paths && (!ok_paths || !*ok_paths))
		die("option --strict-paths requires a whitelist");

	if (base_path && !is_directory(base_path))
		die("base-path '%s' does not exist or is not a directory",
		    base_path);

	if (inetd_mode) {
		struct sockaddr_storage ss;
		struct sockaddr *peer = (struct sockaddr *)&ss;
		socklen_t slen = sizeof(ss);

		if (!freopen("/dev/null", "w", stderr))
			die_errno("failed to redirect stderr to /dev/null");

		if (getpeername(0, peer, &slen))
			peer = NULL;

		return execute(peer);
	}

	if (detach) {
		daemonize();
		loginfo("Ready to rumble");
	}
	else
		sanitize_stdfds();

	if (pid_file)
		store_pid(pid_file);

	return serve(&listen_addr, listen_port, pass, gid);
}