[mirror_qemu.git] / slirp / src / misc.c

/*
 * Copyright (c) 1995 Danny Gasparovski.
 *
 * Please read the file COPYRIGHT for the
 * terms and conditions of the copyright.
 */

#include "slirp.h"

inline void
insque(void *a, void *b)
{
	register struct quehead *element = (struct quehead *) a;
	register struct quehead *head = (struct quehead *) b;
	element->qh_link = head->qh_link;
	head->qh_link = (struct quehead *)element;
	element->qh_rlink = (struct quehead *)head;
	((struct quehead *)(element->qh_link))->qh_rlink
	= (struct quehead *)element;
}

inline void
remque(void *a)
{
  register struct quehead *element = (struct quehead *) a;
  ((struct quehead *)(element->qh_link))->qh_rlink = element->qh_rlink;
  ((struct quehead *)(element->qh_rlink))->qh_link = element->qh_link;
  element->qh_rlink = NULL;
}

/* TODO: IPv6 */
struct gfwd_list *
add_guestfwd(struct gfwd_list **ex_ptr,
             SlirpWriteCb write_cb, void *opaque,
             struct in_addr addr, int port)
{
    struct gfwd_list *f = g_new0(struct gfwd_list, 1);

    f->write_cb = write_cb;
    f->opaque = opaque;
    f->ex_fport = port;
    f->ex_addr = addr;
    f->ex_next = *ex_ptr;
    *ex_ptr = f;

    return f;
}

struct gfwd_list *
add_exec(struct gfwd_list **ex_ptr, const char *cmdline,
         struct in_addr addr, int port)
{
    struct gfwd_list *f = add_guestfwd(ex_ptr, NULL, NULL, addr, port);

    f->ex_exec = g_strdup(cmdline);

    return f;
}

static int
slirp_socketpair_with_oob(int sv[2])
{
    struct sockaddr_in addr = {
        .sin_family = AF_INET,
        .sin_port = 0,
        .sin_addr.s_addr = INADDR_ANY,
    };
    socklen_t addrlen = sizeof(addr);
    int ret, s;

    sv[1] = -1;
    s = slirp_socket(AF_INET, SOCK_STREAM, 0);
    if (s < 0 || bind(s, (struct sockaddr *)&addr, addrlen) < 0 ||
        listen(s, 1) < 0 ||
        getsockname(s, (struct sockaddr *)&addr, &addrlen) < 0) {
        goto err;
    }

    sv[1] = slirp_socket(AF_INET, SOCK_STREAM, 0);
    if (sv[1] < 0) {
        goto err;
    }
    /*
     * This connect won't block because we've already listen()ed on
     * the server end (even though we won't accept() the connection
     * until later on).
     */
    do {
        ret = connect(sv[1], (struct sockaddr *)&addr, addrlen);
    } while (ret < 0 && errno == EINTR);
    if (ret < 0) {
        goto err;
    }

    do {
        sv[0] = accept(s, (struct sockaddr *)&addr, &addrlen);
    } while (sv[0] < 0 && errno == EINTR);
    if (sv[0] < 0) {
        goto err;
    }

    closesocket(s);
    return 0;

err:
    g_critical("slirp_socketpair(): %s", strerror(errno));
    if (s >= 0) {
        closesocket(s);
    }
    if (sv[1] >= 0) {
        closesocket(sv[1]);
    }
    return -1;
}

static void
fork_exec_child_setup(gpointer data)
{
#ifndef _WIN32
    setsid();
#endif
}

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"

#if !GLIB_CHECK_VERSION(2, 58, 0)
typedef struct SlirpGSpawnFds {
    GSpawnChildSetupFunc child_setup;
    gpointer user_data;
    gint stdin_fd;
    gint stdout_fd;
    gint stderr_fd;
} SlirpGSpawnFds;

static inline void
slirp_gspawn_fds_setup(gpointer user_data)
{
    SlirpGSpawnFds *q = (SlirpGSpawnFds *)user_data;

    dup2(q->stdin_fd, 0);
    dup2(q->stdout_fd, 1);
    dup2(q->stderr_fd, 2);
    q->child_setup(q->user_data);
}
#endif

static inline gboolean
g_spawn_async_with_fds_slirp(const gchar *working_directory,
                            gchar **argv,
                            gchar **envp,
                            GSpawnFlags flags,
                            GSpawnChildSetupFunc child_setup,
                            gpointer user_data,
                            GPid *child_pid,
                            gint stdin_fd,
                            gint stdout_fd,
                            gint stderr_fd,
                            GError **error)
{
#if GLIB_CHECK_VERSION(2, 58, 0)
    return g_spawn_async_with_fds(working_directory, argv, envp, flags,
                                  child_setup, user_data,
                                  child_pid, stdin_fd, stdout_fd, stderr_fd,
                                  error);
#else
    SlirpGSpawnFds setup = {
        .child_setup = child_setup,
        .user_data = user_data,
        .stdin_fd = stdin_fd,
        .stdout_fd = stdout_fd,
        .stderr_fd = stderr_fd,
    };

    return g_spawn_async(working_directory, argv, envp, flags,
                         slirp_gspawn_fds_setup, &setup,
                         child_pid, error);
#endif
}

#define g_spawn_async_with_fds(wd, argv, env, f, c, d, p, ifd, ofd, efd, err) \
    g_spawn_async_with_fds_slirp(wd, argv, env, f, c, d, p, ifd, ofd, efd, err)

#pragma GCC diagnostic pop

int
fork_exec(struct socket *so, const char *ex)
{
    GError *err = NULL;
    char **argv;
    int opt, sp[2];

    DEBUG_CALL("fork_exec");
    DEBUG_ARG("so = %p", so);
    DEBUG_ARG("ex = %p", ex);

    if (slirp_socketpair_with_oob(sp) < 0) {
        return 0;
    }

    argv = g_strsplit(ex, " ", -1);
    g_spawn_async_with_fds(NULL /* cwd */,
                           argv,
                           NULL /* env */,
                           G_SPAWN_SEARCH_PATH,
                           fork_exec_child_setup, NULL /* data */,
                           NULL /* child_pid */,
                           sp[1], sp[1], sp[1],
                           &err);
    g_strfreev(argv);

    if (err) {
        g_critical("fork_exec: %s", err->message);
        g_error_free(err);
        closesocket(sp[0]);
        closesocket(sp[1]);
        return 0;
    }

    so->s = sp[0];
    closesocket(sp[1]);
    slirp_socket_set_fast_reuse(so->s);
    opt = 1;
    setsockopt(so->s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
    slirp_set_nonblock(so->s);
    so->slirp->cb->register_poll_fd(so->s, so->slirp->opaque);
    return 1;
}

char *slirp_connection_info(Slirp *slirp)
{
    GString *str = g_string_new(NULL);
    const char * const tcpstates[] = {
        [TCPS_CLOSED]       = "CLOSED",
        [TCPS_LISTEN]       = "LISTEN",
        [TCPS_SYN_SENT]     = "SYN_SENT",
        [TCPS_SYN_RECEIVED] = "SYN_RCVD",
        [TCPS_ESTABLISHED]  = "ESTABLISHED",
        [TCPS_CLOSE_WAIT]   = "CLOSE_WAIT",
        [TCPS_FIN_WAIT_1]   = "FIN_WAIT_1",
        [TCPS_CLOSING]      = "CLOSING",
        [TCPS_LAST_ACK]     = "LAST_ACK",
        [TCPS_FIN_WAIT_2]   = "FIN_WAIT_2",
        [TCPS_TIME_WAIT]    = "TIME_WAIT",
    };
    struct in_addr dst_addr;
    struct sockaddr_in src;
    socklen_t src_len;
    uint16_t dst_port;
    struct socket *so;
    const char *state;
    char buf[20];

    g_string_append_printf(str,
        "  Protocol[State]    FD  Source Address  Port   "
        "Dest. Address  Port RecvQ SendQ\n");

    /* TODO: IPv6 */

    for (so = slirp->tcb.so_next; so != &slirp->tcb; so = so->so_next) {
        if (so->so_state & SS_HOSTFWD) {
            state = "HOST_FORWARD";
        } else if (so->so_tcpcb) {
            state = tcpstates[so->so_tcpcb->t_state];
        } else {
            state = "NONE";
        }
        if (so->so_state & (SS_HOSTFWD | SS_INCOMING)) {
            src_len = sizeof(src);
            getsockname(so->s, (struct sockaddr *)&src, &src_len);
            dst_addr = so->so_laddr;
            dst_port = so->so_lport;
        } else {
            src.sin_addr = so->so_laddr;
            src.sin_port = so->so_lport;
            dst_addr = so->so_faddr;
            dst_port = so->so_fport;
        }
        snprintf(buf, sizeof(buf), "  TCP[%s]", state);
        g_string_append_printf(str, "%-19s %3d %15s %5d ", buf, so->s,
                       src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*",
                       ntohs(src.sin_port));
        g_string_append_printf(str, "%15s %5d %5d %5d\n",
                       inet_ntoa(dst_addr), ntohs(dst_port),
                       so->so_rcv.sb_cc, so->so_snd.sb_cc);
    }

    for (so = slirp->udb.so_next; so != &slirp->udb; so = so->so_next) {
        if (so->so_state & SS_HOSTFWD) {
            snprintf(buf, sizeof(buf), "  UDP[HOST_FORWARD]");
            src_len = sizeof(src);
            getsockname(so->s, (struct sockaddr *)&src, &src_len);
            dst_addr = so->so_laddr;
            dst_port = so->so_lport;
        } else {
            snprintf(buf, sizeof(buf), "  UDP[%d sec]",
                         (so->so_expire - curtime) / 1000);
            src.sin_addr = so->so_laddr;
            src.sin_port = so->so_lport;
            dst_addr = so->so_faddr;
            dst_port = so->so_fport;
        }
        g_string_append_printf(str, "%-19s %3d %15s %5d ", buf, so->s,
                       src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*",
                       ntohs(src.sin_port));
        g_string_append_printf(str, "%15s %5d %5d %5d\n",
                       inet_ntoa(dst_addr), ntohs(dst_port),
                       so->so_rcv.sb_cc, so->so_snd.sb_cc);
    }

    for (so = slirp->icmp.so_next; so != &slirp->icmp; so = so->so_next) {
        snprintf(buf, sizeof(buf), "  ICMP[%d sec]",
                     (so->so_expire - curtime) / 1000);
        src.sin_addr = so->so_laddr;
        dst_addr = so->so_faddr;
        g_string_append_printf(str, "%-19s %3d %15s  -    ", buf, so->s,
                       src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*");
        g_string_append_printf(str, "%15s  -    %5d %5d\n", inet_ntoa(dst_addr),
                       so->so_rcv.sb_cc, so->so_snd.sb_cc);
    }

    return g_string_free(str, FALSE);
}
Commit	Line	Data
f0cbd3ec FB	1	/*
f0cbd3ec FB	2	* Copyright (c) 1995 Danny Gasparovski.
5fafdf24	3	*
f0cbd3ec FB	4	* Please read the file COPYRIGHT for the
	5	* terms and conditions of the copyright.
	6	*/
	7
a9c94277	8	#include "slirp.h"
f0cbd3ec	9
f0cbd3ec	10	inline void
511d2b14	11	insque(void a, void b)
f0cbd3ec FB	12	{
	13	register struct quehead element = (struct quehead ) a;
	14	register struct quehead head = (struct quehead ) b;
	15	element->qh_link = head->qh_link;
	16	head->qh_link = (struct quehead *)element;
	17	element->qh_rlink = (struct quehead *)head;
	18	((struct quehead *)(element->qh_link))->qh_rlink
	19	= (struct quehead *)element;
	20	}
	21
	22	inline void
511d2b14	23	remque(void *a)
f0cbd3ec FB	24	{
	25	register struct quehead element = (struct quehead ) a;
	26	((struct quehead *)(element->qh_link))->qh_rlink = element->qh_rlink;
	27	((struct quehead *)(element->qh_rlink))->qh_link = element->qh_link;
	28	element->qh_rlink = NULL;
f0cbd3ec FB	29	}
f0cbd3ec FB	30
ffe02f55	31	/* TODO: IPv6 */
44b4ff24 MAL	32	struct gfwd_list *
	33	add_guestfwd(struct gfwd_list **ex_ptr,
	34	SlirpWriteCb write_cb, void *opaque,
a13a4126	35	struct in_addr addr, int port)
f0cbd3ec	36	{
44b4ff24	37	struct gfwd_list *f = g_new0(struct gfwd_list, 1);
5fafdf24	38
44b4ff24 MAL	39	f->write_cb = write_cb;
	40	f->opaque = opaque;
	41	f->ex_fport = port;
	42	f->ex_addr = addr;
	43	f->ex_next = *ex_ptr;
	44	*ex_ptr = f;
	45
	46	return f;
f0cbd3ec FB	47	}
f0cbd3ec FB	48
44b4ff24 MAL	49	struct gfwd_list *
	50	add_exec(struct gfwd_list *ex_ptr, const char cmdline,
	51	struct in_addr addr, int port)
	52	{
	53	struct gfwd_list *f = add_guestfwd(ex_ptr, NULL, NULL, addr, port);
	54
	55	f->ex_exec = g_strdup(cmdline);
	56
	57	return f;
	58	}
f0cbd3ec	59
7f514092 MAL	60	static int
	61	slirp_socketpair_with_oob(int sv[2])
	62	{
	63	struct sockaddr_in addr = {
	64	.sin_family = AF_INET,
	65	.sin_port = 0,
	66	.sin_addr.s_addr = INADDR_ANY,
	67	};
	68	socklen_t addrlen = sizeof(addr);
	69	int ret, s;
	70
	71	sv[1] = -1;
707bd47e	72	s = slirp_socket(AF_INET, SOCK_STREAM, 0);
7f514092 MAL	73	if (s < 0 \|\| bind(s, (struct sockaddr *)&addr, addrlen) < 0 \|\|
	74	listen(s, 1) < 0 \|\|
	75	getsockname(s, (struct sockaddr *)&addr, &addrlen) < 0) {
	76	goto err;
	77	}
	78
707bd47e	79	sv[1] = slirp_socket(AF_INET, SOCK_STREAM, 0);
7f514092 MAL	80	if (sv[1] < 0) {
	81	goto err;
	82	}
	83	/*
	84	* This connect won't block because we've already listen()ed on
	85	* the server end (even though we won't accept() the connection
	86	* until later on).
	87	*/
	88	do {
	89	ret = connect(sv[1], (struct sockaddr *)&addr, addrlen);
	90	} while (ret < 0 && errno == EINTR);
	91	if (ret < 0) {
	92	goto err;
	93	}
	94
	95	do {
	96	sv[0] = accept(s, (struct sockaddr *)&addr, &addrlen);
	97	} while (sv[0] < 0 && errno == EINTR);
	98	if (sv[0] < 0) {
	99	goto err;
	100	}
	101
fdbfba8c	102	closesocket(s);
7f514092 MAL	103	return 0;
	104
	105	err:
90dfa278	106	g_critical("slirp_socketpair(): %s", strerror(errno));
7f514092	107	if (s >= 0) {
fdbfba8c	108	closesocket(s);
7f514092 MAL	109	}
7f514092 MAL	110	if (sv[1] >= 0) {
fdbfba8c	111	closesocket(sv[1]);
7f514092 MAL	112	}
	113	return -1;
	114	}
	115
2bdb920e MAL	116	static void
	117	fork_exec_child_setup(gpointer data)
	118	{
e589a442	119	#ifndef _WIN32
2bdb920e	120	setsid();
e589a442	121	#endif
2bdb920e MAL	122	}
2bdb920e MAL	123
4ffa6325 ST	124	#pragma GCC diagnostic push
	125	#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
	126
	127	#if !GLIB_CHECK_VERSION(2, 58, 0)
	128	typedef struct SlirpGSpawnFds {
	129	GSpawnChildSetupFunc child_setup;
	130	gpointer user_data;
	131	gint stdin_fd;
	132	gint stdout_fd;
	133	gint stderr_fd;
	134	} SlirpGSpawnFds;
	135
	136	static inline void
	137	slirp_gspawn_fds_setup(gpointer user_data)
	138	{
	139	SlirpGSpawnFds q = (SlirpGSpawnFds )user_data;
	140
	141	dup2(q->stdin_fd, 0);
	142	dup2(q->stdout_fd, 1);
	143	dup2(q->stderr_fd, 2);
	144	q->child_setup(q->user_data);
	145	}
	146	#endif
	147
	148	static inline gboolean
	149	g_spawn_async_with_fds_slirp(const gchar *working_directory,
	150	gchar **argv,
	151	gchar **envp,
	152	GSpawnFlags flags,
	153	GSpawnChildSetupFunc child_setup,
	154	gpointer user_data,
	155	GPid *child_pid,
	156	gint stdin_fd,
	157	gint stdout_fd,
	158	gint stderr_fd,
	159	GError **error)
	160	{
	161	#if GLIB_CHECK_VERSION(2, 58, 0)
	162	return g_spawn_async_with_fds(working_directory, argv, envp, flags,
	163	child_setup, user_data,
	164	child_pid, stdin_fd, stdout_fd, stderr_fd,
	165	error);
	166	#else
	167	SlirpGSpawnFds setup = {
	168	.child_setup = child_setup,
	169	.user_data = user_data,
	170	.stdin_fd = stdin_fd,
	171	.stdout_fd = stdout_fd,
	172	.stderr_fd = stderr_fd,
	173	};
	174
	175	return g_spawn_async(working_directory, argv, envp, flags,
	176	slirp_gspawn_fds_setup, &setup,
	177	child_pid, error);
	178	#endif
	179	}
	180
	181	#define g_spawn_async_with_fds(wd, argv, env, f, c, d, p, ifd, ofd, efd, err) \
	182	g_spawn_async_with_fds_slirp(wd, argv, env, f, c, d, p, ifd, ofd, efd, err)
	183
	184	#pragma GCC diagnostic pop
	185
f0cbd3ec	186	int
43bc7340	187	fork_exec(struct socket so, const char ex)
f0cbd3ec	188	{
2bdb920e MAL	189	GError *err = NULL;
	190	char **argv;
	191	int opt, sp[2];
5fafdf24	192
2bdb920e MAL	193	DEBUG_CALL("fork_exec");
	194	DEBUG_ARG("so = %p", so);
	195	DEBUG_ARG("ex = %p", ex);
43bc7340	196
7f514092	197	if (slirp_socketpair_with_oob(sp) < 0) {
43bc7340 MAL	198	return 0;
43bc7340 MAL	199	}
5fafdf24	200
2bdb920e MAL	201	argv = g_strsplit(ex, " ", -1);
	202	g_spawn_async_with_fds(NULL /* cwd */,
	203	argv,
	204	NULL /* env */,
	205	G_SPAWN_SEARCH_PATH,
	206	fork_exec_child_setup, NULL /* data */,
	207	NULL /* child_pid */,
	208	sp[1], sp[1], sp[1],
	209	&err);
	210	g_strfreev(argv);
	211
	212	if (err) {
6b744ea4	213	g_critical("fork_exec: %s", err->message);
2bdb920e	214	g_error_free(err);
fdbfba8c MAL	215	closesocket(sp[0]);
fdbfba8c MAL	216	closesocket(sp[1]);
2bdb920e MAL	217	return 0;
	218	}
	219
	220	so->s = sp[0];
fdbfba8c	221	closesocket(sp[1]);
707bd47e	222	slirp_socket_set_fast_reuse(so->s);
2bdb920e	223	opt = 1;
fdbfba8c	224	setsockopt(so->s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
848c7092	225	slirp_set_nonblock(so->s);
3e0fad3a	226	so->slirp->cb->register_poll_fd(so->s, so->slirp->opaque);
2bdb920e	227	return 1;
f0cbd3ec	228	}
f0cbd3ec	229
b7f43bf2	230	char slirp_connection_info(Slirp slirp)
6dbe553f	231	{
b7f43bf2	232	GString *str = g_string_new(NULL);
6dbe553f JK	233	const char * const tcpstates[] = {
	234	[TCPS_CLOSED] = "CLOSED",
	235	[TCPS_LISTEN] = "LISTEN",
	236	[TCPS_SYN_SENT] = "SYN_SENT",
	237	[TCPS_SYN_RECEIVED] = "SYN_RCVD",
	238	[TCPS_ESTABLISHED] = "ESTABLISHED",
	239	[TCPS_CLOSE_WAIT] = "CLOSE_WAIT",
	240	[TCPS_FIN_WAIT_1] = "FIN_WAIT_1",
	241	[TCPS_CLOSING] = "CLOSING",
	242	[TCPS_LAST_ACK] = "LAST_ACK",
	243	[TCPS_FIN_WAIT_2] = "FIN_WAIT_2",
	244	[TCPS_TIME_WAIT] = "TIME_WAIT",
	245	};
	246	struct in_addr dst_addr;
	247	struct sockaddr_in src;
	248	socklen_t src_len;
	249	uint16_t dst_port;
	250	struct socket *so;
	251	const char *state;
	252	char buf[20];
6dbe553f	253
b7f43bf2 MAL	254	g_string_append_printf(str,
	255	" Protocol[State] FD Source Address Port "
	256	"Dest. Address Port RecvQ SendQ\n");
6dbe553f	257
ffe02f55 ST	258	/* TODO: IPv6 */
ffe02f55 ST	259
460fec67	260	for (so = slirp->tcb.so_next; so != &slirp->tcb; so = so->so_next) {
6dbe553f JK	261	if (so->so_state & SS_HOSTFWD) {
	262	state = "HOST_FORWARD";
	263	} else if (so->so_tcpcb) {
	264	state = tcpstates[so->so_tcpcb->t_state];
	265	} else {
	266	state = "NONE";
	267	}
	268	if (so->so_state & (SS_HOSTFWD \| SS_INCOMING)) {
	269	src_len = sizeof(src);
	270	getsockname(so->s, (struct sockaddr *)&src, &src_len);
	271	dst_addr = so->so_laddr;
	272	dst_port = so->so_lport;
	273	} else {
	274	src.sin_addr = so->so_laddr;
	275	src.sin_port = so->so_lport;
	276	dst_addr = so->so_faddr;
	277	dst_port = so->so_fport;
	278	}
f293d8b1	279	snprintf(buf, sizeof(buf), " TCP[%s]", state);
b7f43bf2	280	g_string_append_printf(str, "%-19s %3d %15s %5d ", buf, so->s,
6dbe553f JK	281	src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*",
6dbe553f JK	282	ntohs(src.sin_port));
b7f43bf2	283	g_string_append_printf(str, "%15s %5d %5d %5d\n",
6dbe553f JK	284	inet_ntoa(dst_addr), ntohs(dst_port),
	285	so->so_rcv.sb_cc, so->so_snd.sb_cc);
	286	}
	287
460fec67	288	for (so = slirp->udb.so_next; so != &slirp->udb; so = so->so_next) {
6dbe553f	289	if (so->so_state & SS_HOSTFWD) {
f293d8b1	290	snprintf(buf, sizeof(buf), " UDP[HOST_FORWARD]");
6dbe553f JK	291	src_len = sizeof(src);
	292	getsockname(so->s, (struct sockaddr *)&src, &src_len);
	293	dst_addr = so->so_laddr;
	294	dst_port = so->so_lport;
	295	} else {
f293d8b1	296	snprintf(buf, sizeof(buf), " UDP[%d sec]",
6dbe553f JK	297	(so->so_expire - curtime) / 1000);
	298	src.sin_addr = so->so_laddr;
	299	src.sin_port = so->so_lport;
	300	dst_addr = so->so_faddr;
	301	dst_port = so->so_fport;
	302	}
b7f43bf2	303	g_string_append_printf(str, "%-19s %3d %15s %5d ", buf, so->s,
6dbe553f JK	304	src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*",
6dbe553f JK	305	ntohs(src.sin_port));
b7f43bf2	306	g_string_append_printf(str, "%15s %5d %5d %5d\n",
6dbe553f JK	307	inet_ntoa(dst_addr), ntohs(dst_port),
	308	so->so_rcv.sb_cc, so->so_snd.sb_cc);
	309	}
e6d43cfb JK	310
e6d43cfb JK	311	for (so = slirp->icmp.so_next; so != &slirp->icmp; so = so->so_next) {
f293d8b1	312	snprintf(buf, sizeof(buf), " ICMP[%d sec]",
e6d43cfb JK	313	(so->so_expire - curtime) / 1000);
	314	src.sin_addr = so->so_laddr;
	315	dst_addr = so->so_faddr;
b7f43bf2	316	g_string_append_printf(str, "%-19s %3d %15s - ", buf, so->s,
e6d43cfb	317	src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*");
b7f43bf2	318	g_string_append_printf(str, "%15s - %5d %5d\n", inet_ntoa(dst_addr),
e6d43cfb JK	319	so->so_rcv.sb_cc, so->so_snd.sb_cc);
e6d43cfb JK	320	}
b7f43bf2 MAL	321
b7f43bf2 MAL	322	return g_string_free(str, FALSE);
6dbe553f	323	}