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

/* SPDX-License-Identifier: BSD-3-Clause */
/*
 * 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
3e6d35e5	1	/* SPDX-License-Identifier: BSD-3-Clause */
f0cbd3ec FB	2	/*
f0cbd3ec FB	3	* Copyright (c) 1995 Danny Gasparovski.
5fafdf24	4	*
f0cbd3ec FB	5	* Please read the file COPYRIGHT for the
	6	* terms and conditions of the copyright.
	7	*/
	8
a9c94277	9	#include "slirp.h"
f0cbd3ec	10
f0cbd3ec	11	inline void
511d2b14	12	insque(void a, void b)
f0cbd3ec FB	13	{
	14	register struct quehead element = (struct quehead ) a;
	15	register struct quehead head = (struct quehead ) b;
	16	element->qh_link = head->qh_link;
	17	head->qh_link = (struct quehead *)element;
	18	element->qh_rlink = (struct quehead *)head;
	19	((struct quehead *)(element->qh_link))->qh_rlink
	20	= (struct quehead *)element;
	21	}
	22
	23	inline void
511d2b14	24	remque(void *a)
f0cbd3ec FB	25	{
	26	register struct quehead element = (struct quehead ) a;
	27	((struct quehead *)(element->qh_link))->qh_rlink = element->qh_rlink;
	28	((struct quehead *)(element->qh_rlink))->qh_link = element->qh_link;
	29	element->qh_rlink = NULL;
f0cbd3ec FB	30	}
f0cbd3ec FB	31
ffe02f55	32	/* TODO: IPv6 */
44b4ff24 MAL	33	struct gfwd_list *
	34	add_guestfwd(struct gfwd_list **ex_ptr,
	35	SlirpWriteCb write_cb, void *opaque,
a13a4126	36	struct in_addr addr, int port)
f0cbd3ec	37	{
44b4ff24	38	struct gfwd_list *f = g_new0(struct gfwd_list, 1);
5fafdf24	39
44b4ff24 MAL	40	f->write_cb = write_cb;
	41	f->opaque = opaque;
	42	f->ex_fport = port;
	43	f->ex_addr = addr;
	44	f->ex_next = *ex_ptr;
	45	*ex_ptr = f;
	46
	47	return f;
f0cbd3ec FB	48	}
f0cbd3ec FB	49
44b4ff24 MAL	50	struct gfwd_list *
	51	add_exec(struct gfwd_list *ex_ptr, const char cmdline,
	52	struct in_addr addr, int port)
	53	{
	54	struct gfwd_list *f = add_guestfwd(ex_ptr, NULL, NULL, addr, port);
	55
	56	f->ex_exec = g_strdup(cmdline);
	57
	58	return f;
	59	}
f0cbd3ec	60
7f514092 MAL	61	static int
	62	slirp_socketpair_with_oob(int sv[2])
	63	{
	64	struct sockaddr_in addr = {
	65	.sin_family = AF_INET,
	66	.sin_port = 0,
	67	.sin_addr.s_addr = INADDR_ANY,
	68	};
	69	socklen_t addrlen = sizeof(addr);
	70	int ret, s;
	71
	72	sv[1] = -1;
707bd47e	73	s = slirp_socket(AF_INET, SOCK_STREAM, 0);
7f514092 MAL	74	if (s < 0 \|\| bind(s, (struct sockaddr *)&addr, addrlen) < 0 \|\|
	75	listen(s, 1) < 0 \|\|
	76	getsockname(s, (struct sockaddr *)&addr, &addrlen) < 0) {
	77	goto err;
	78	}
	79
707bd47e	80	sv[1] = slirp_socket(AF_INET, SOCK_STREAM, 0);
7f514092 MAL	81	if (sv[1] < 0) {
	82	goto err;
	83	}
	84	/*
	85	* This connect won't block because we've already listen()ed on
	86	* the server end (even though we won't accept() the connection
	87	* until later on).
	88	*/
	89	do {
	90	ret = connect(sv[1], (struct sockaddr *)&addr, addrlen);
	91	} while (ret < 0 && errno == EINTR);
	92	if (ret < 0) {
	93	goto err;
	94	}
	95
	96	do {
	97	sv[0] = accept(s, (struct sockaddr *)&addr, &addrlen);
	98	} while (sv[0] < 0 && errno == EINTR);
	99	if (sv[0] < 0) {
	100	goto err;
	101	}
	102
fdbfba8c	103	closesocket(s);
7f514092 MAL	104	return 0;
	105
	106	err:
90dfa278	107	g_critical("slirp_socketpair(): %s", strerror(errno));
7f514092	108	if (s >= 0) {
fdbfba8c	109	closesocket(s);
7f514092 MAL	110	}
7f514092 MAL	111	if (sv[1] >= 0) {
fdbfba8c	112	closesocket(sv[1]);
7f514092 MAL	113	}
	114	return -1;
	115	}
	116
2bdb920e MAL	117	static void
	118	fork_exec_child_setup(gpointer data)
	119	{
e589a442	120	#ifndef _WIN32
2bdb920e	121	setsid();
e589a442	122	#endif
2bdb920e MAL	123	}
2bdb920e MAL	124
4ffa6325 ST	125	#pragma GCC diagnostic push
	126	#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
	127
	128	#if !GLIB_CHECK_VERSION(2, 58, 0)
	129	typedef struct SlirpGSpawnFds {
	130	GSpawnChildSetupFunc child_setup;
	131	gpointer user_data;
	132	gint stdin_fd;
	133	gint stdout_fd;
	134	gint stderr_fd;
	135	} SlirpGSpawnFds;
	136
	137	static inline void
	138	slirp_gspawn_fds_setup(gpointer user_data)
	139	{
	140	SlirpGSpawnFds q = (SlirpGSpawnFds )user_data;
	141
	142	dup2(q->stdin_fd, 0);
	143	dup2(q->stdout_fd, 1);
	144	dup2(q->stderr_fd, 2);
	145	q->child_setup(q->user_data);
	146	}
	147	#endif
	148
	149	static inline gboolean
	150	g_spawn_async_with_fds_slirp(const gchar *working_directory,
	151	gchar **argv,
	152	gchar **envp,
	153	GSpawnFlags flags,
	154	GSpawnChildSetupFunc child_setup,
	155	gpointer user_data,
	156	GPid *child_pid,
	157	gint stdin_fd,
	158	gint stdout_fd,
	159	gint stderr_fd,
	160	GError **error)
	161	{
	162	#if GLIB_CHECK_VERSION(2, 58, 0)
	163	return g_spawn_async_with_fds(working_directory, argv, envp, flags,
	164	child_setup, user_data,
	165	child_pid, stdin_fd, stdout_fd, stderr_fd,
	166	error);
	167	#else
	168	SlirpGSpawnFds setup = {
	169	.child_setup = child_setup,
	170	.user_data = user_data,
	171	.stdin_fd = stdin_fd,
	172	.stdout_fd = stdout_fd,
	173	.stderr_fd = stderr_fd,
	174	};
	175
	176	return g_spawn_async(working_directory, argv, envp, flags,
	177	slirp_gspawn_fds_setup, &setup,
	178	child_pid, error);
	179	#endif
	180	}
	181
	182	#define g_spawn_async_with_fds(wd, argv, env, f, c, d, p, ifd, ofd, efd, err) \
	183	g_spawn_async_with_fds_slirp(wd, argv, env, f, c, d, p, ifd, ofd, efd, err)
	184
	185	#pragma GCC diagnostic pop
	186
f0cbd3ec	187	int
43bc7340	188	fork_exec(struct socket so, const char ex)
f0cbd3ec	189	{
2bdb920e MAL	190	GError *err = NULL;
	191	char **argv;
	192	int opt, sp[2];
5fafdf24	193
2bdb920e MAL	194	DEBUG_CALL("fork_exec");
	195	DEBUG_ARG("so = %p", so);
	196	DEBUG_ARG("ex = %p", ex);
43bc7340	197
7f514092	198	if (slirp_socketpair_with_oob(sp) < 0) {
43bc7340 MAL	199	return 0;
43bc7340 MAL	200	}
5fafdf24	201
2bdb920e MAL	202	argv = g_strsplit(ex, " ", -1);
	203	g_spawn_async_with_fds(NULL /* cwd */,
	204	argv,
	205	NULL /* env */,
	206	G_SPAWN_SEARCH_PATH,
	207	fork_exec_child_setup, NULL /* data */,
	208	NULL /* child_pid */,
	209	sp[1], sp[1], sp[1],
	210	&err);
	211	g_strfreev(argv);
	212
	213	if (err) {
6b744ea4	214	g_critical("fork_exec: %s", err->message);
2bdb920e	215	g_error_free(err);
fdbfba8c MAL	216	closesocket(sp[0]);
fdbfba8c MAL	217	closesocket(sp[1]);
2bdb920e MAL	218	return 0;
	219	}
	220
	221	so->s = sp[0];
fdbfba8c	222	closesocket(sp[1]);
707bd47e	223	slirp_socket_set_fast_reuse(so->s);
2bdb920e	224	opt = 1;
fdbfba8c	225	setsockopt(so->s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
848c7092	226	slirp_set_nonblock(so->s);
3e0fad3a	227	so->slirp->cb->register_poll_fd(so->s, so->slirp->opaque);
2bdb920e	228	return 1;
f0cbd3ec	229	}
f0cbd3ec	230
b7f43bf2	231	char slirp_connection_info(Slirp slirp)
6dbe553f	232	{
b7f43bf2	233	GString *str = g_string_new(NULL);
6dbe553f JK	234	const char * const tcpstates[] = {
	235	[TCPS_CLOSED] = "CLOSED",
	236	[TCPS_LISTEN] = "LISTEN",
	237	[TCPS_SYN_SENT] = "SYN_SENT",
	238	[TCPS_SYN_RECEIVED] = "SYN_RCVD",
	239	[TCPS_ESTABLISHED] = "ESTABLISHED",
	240	[TCPS_CLOSE_WAIT] = "CLOSE_WAIT",
	241	[TCPS_FIN_WAIT_1] = "FIN_WAIT_1",
	242	[TCPS_CLOSING] = "CLOSING",
	243	[TCPS_LAST_ACK] = "LAST_ACK",
	244	[TCPS_FIN_WAIT_2] = "FIN_WAIT_2",
	245	[TCPS_TIME_WAIT] = "TIME_WAIT",
	246	};
	247	struct in_addr dst_addr;
	248	struct sockaddr_in src;
	249	socklen_t src_len;
	250	uint16_t dst_port;
	251	struct socket *so;
	252	const char *state;
	253	char buf[20];
6dbe553f	254
b7f43bf2 MAL	255	g_string_append_printf(str,
	256	" Protocol[State] FD Source Address Port "
	257	"Dest. Address Port RecvQ SendQ\n");
6dbe553f	258
ffe02f55 ST	259	/* TODO: IPv6 */
ffe02f55 ST	260
460fec67	261	for (so = slirp->tcb.so_next; so != &slirp->tcb; so = so->so_next) {
6dbe553f JK	262	if (so->so_state & SS_HOSTFWD) {
	263	state = "HOST_FORWARD";
	264	} else if (so->so_tcpcb) {
	265	state = tcpstates[so->so_tcpcb->t_state];
	266	} else {
	267	state = "NONE";
	268	}
	269	if (so->so_state & (SS_HOSTFWD \| SS_INCOMING)) {
	270	src_len = sizeof(src);
	271	getsockname(so->s, (struct sockaddr *)&src, &src_len);
	272	dst_addr = so->so_laddr;
	273	dst_port = so->so_lport;
	274	} else {
	275	src.sin_addr = so->so_laddr;
	276	src.sin_port = so->so_lport;
	277	dst_addr = so->so_faddr;
	278	dst_port = so->so_fport;
	279	}
f293d8b1	280	snprintf(buf, sizeof(buf), " TCP[%s]", state);
b7f43bf2	281	g_string_append_printf(str, "%-19s %3d %15s %5d ", buf, so->s,
6dbe553f JK	282	src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*",
6dbe553f JK	283	ntohs(src.sin_port));
b7f43bf2	284	g_string_append_printf(str, "%15s %5d %5d %5d\n",
6dbe553f JK	285	inet_ntoa(dst_addr), ntohs(dst_port),
	286	so->so_rcv.sb_cc, so->so_snd.sb_cc);
	287	}
	288
460fec67	289	for (so = slirp->udb.so_next; so != &slirp->udb; so = so->so_next) {
6dbe553f	290	if (so->so_state & SS_HOSTFWD) {
f293d8b1	291	snprintf(buf, sizeof(buf), " UDP[HOST_FORWARD]");
6dbe553f JK	292	src_len = sizeof(src);
	293	getsockname(so->s, (struct sockaddr *)&src, &src_len);
	294	dst_addr = so->so_laddr;
	295	dst_port = so->so_lport;
	296	} else {
f293d8b1	297	snprintf(buf, sizeof(buf), " UDP[%d sec]",
6dbe553f JK	298	(so->so_expire - curtime) / 1000);
	299	src.sin_addr = so->so_laddr;
	300	src.sin_port = so->so_lport;
	301	dst_addr = so->so_faddr;
	302	dst_port = so->so_fport;
	303	}
b7f43bf2	304	g_string_append_printf(str, "%-19s %3d %15s %5d ", buf, so->s,
6dbe553f JK	305	src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*",
6dbe553f JK	306	ntohs(src.sin_port));
b7f43bf2	307	g_string_append_printf(str, "%15s %5d %5d %5d\n",
6dbe553f JK	308	inet_ntoa(dst_addr), ntohs(dst_port),
	309	so->so_rcv.sb_cc, so->so_snd.sb_cc);
	310	}
e6d43cfb JK	311
e6d43cfb JK	312	for (so = slirp->icmp.so_next; so != &slirp->icmp; so = so->so_next) {
f293d8b1	313	snprintf(buf, sizeof(buf), " ICMP[%d sec]",
e6d43cfb JK	314	(so->so_expire - curtime) / 1000);
	315	src.sin_addr = so->so_laddr;
	316	dst_addr = so->so_faddr;
b7f43bf2	317	g_string_append_printf(str, "%-19s %3d %15s - ", buf, so->s,
e6d43cfb	318	src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*");
b7f43bf2	319	g_string_append_printf(str, "%15s - %5d %5d\n", inet_ntoa(dst_addr),
e6d43cfb JK	320	so->so_rcv.sb_cc, so->so_snd.sb_cc);
e6d43cfb JK	321	}
b7f43bf2 MAL	322
b7f43bf2 MAL	323	return g_string_free(str, FALSE);
6dbe553f	324	}