mirror of
https://github.com/tmux/tmux.git
synced 2025-09-02 05:21:10 +00:00
Merge branch 'obsd-master'
Conflicts: Makefile client.c server-client.c server.c tmux.c tmux.h
This commit is contained in:
Thomas Adam
516
client.c
516
client.c
@ -33,10 +33,10 @@
|
||||
|
||||
#include "tmux.h"
|
||||
|
||||
int client_flags;
|
||||
struct imsgbuf client_ibuf;
|
||||
struct event client_event;
|
||||
struct event client_stdin;
|
||||
struct tmuxproc *client_proc;
|
||||
struct tmuxpeer *client_peer;
|
||||
int client_flags;
|
||||
struct event client_stdin;
|
||||
enum {
|
||||
CLIENT_EXIT_NONE,
|
||||
CLIENT_EXIT_DETACHED,
|
||||
@ -47,24 +47,21 @@ enum {
|
||||
CLIENT_EXIT_EXITED,
|
||||
CLIENT_EXIT_SERVER_EXITED,
|
||||
} client_exitreason = CLIENT_EXIT_NONE;
|
||||
int client_exitval;
|
||||
enum msgtype client_exittype;
|
||||
const char *client_exitsession;
|
||||
int client_attached;
|
||||
int client_exitval;
|
||||
enum msgtype client_exittype;
|
||||
const char *client_exitsession;
|
||||
int client_attached;
|
||||
|
||||
__dead void client_exec(const char *);
|
||||
int client_get_lock(char *);
|
||||
int client_connect(struct event_base *, char *, int);
|
||||
void client_send_identify(const char *, const char *);
|
||||
int client_write_one(enum msgtype, int, const void *, size_t);
|
||||
int client_write_server(enum msgtype, const void *, size_t);
|
||||
void client_update_event(void);
|
||||
void client_signal(int, short, void *);
|
||||
void client_stdin_callback(int, short, void *);
|
||||
void client_write(int, const char *, size_t);
|
||||
void client_callback(int, short, void *);
|
||||
int client_dispatch_attached(void);
|
||||
int client_dispatch_wait(void);
|
||||
void client_signal(int);
|
||||
void client_dispatch(struct imsg *, void *);
|
||||
void client_dispatch_attached(struct imsg *);
|
||||
void client_dispatch_wait(struct imsg *);
|
||||
const char *client_exit_message(void);
|
||||
|
||||
/*
|
||||
@ -222,6 +219,9 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
|
||||
struct termios tio, saved_tio;
|
||||
size_t size;
|
||||
|
||||
/* Ignore SIGCHLD now or daemon() in the server will leave a zombie. */
|
||||
signal(SIGCHLD, SIG_IGN);
|
||||
|
||||
/* Save the flags. */
|
||||
client_flags = flags;
|
||||
|
||||
@ -254,9 +254,6 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
|
||||
cmd_list_free(cmdlist);
|
||||
}
|
||||
|
||||
/* Establish signal handlers. */
|
||||
set_signals(client_signal);
|
||||
|
||||
/* Initialize the client socket and start the server. */
|
||||
fd = client_connect(base, socket_path, cmdflags & CMD_STARTSERVER);
|
||||
if (fd == -1) {
|
||||
@ -270,6 +267,10 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
|
||||
return (1);
|
||||
}
|
||||
|
||||
/* Build process state. */
|
||||
client_proc = proc_start("client", base, 0, client_signal);
|
||||
client_peer = proc_add_peer(client_proc, fd, client_dispatch, NULL);
|
||||
|
||||
/* Save these before pledge(). */
|
||||
if ((cwd = getcwd(path, sizeof path)) == NULL)
|
||||
cwd = "/";
|
||||
@ -291,21 +292,11 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
|
||||
#endif
|
||||
|
||||
/* Free stuff that is not used in the client. */
|
||||
options_free(&global_options);
|
||||
options_free(&global_s_options);
|
||||
options_free(&global_w_options);
|
||||
options_free(global_options);
|
||||
options_free(global_s_options);
|
||||
options_free(global_w_options);
|
||||
environ_free(&global_environ);
|
||||
|
||||
/* Set process title, log and signals now this is the client. */
|
||||
#ifdef HAVE_SETPROCTITLE
|
||||
setproctitle("client (%s)", socket_path);
|
||||
#endif
|
||||
logfile("client");
|
||||
|
||||
/* Create imsg. */
|
||||
imsg_init(&client_ibuf, fd);
|
||||
event_set(&client_event, fd, EV_READ, client_callback, NULL);
|
||||
|
||||
/* Create stdin handler. */
|
||||
setblocking(STDIN_FILENO, 0);
|
||||
event_set(&client_stdin, STDIN_FILENO, EV_READ|EV_PERSIST,
|
||||
@ -351,18 +342,17 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
|
||||
size += sizeof *data;
|
||||
|
||||
/* Send the command. */
|
||||
if (client_write_server(msg, data, size) != 0) {
|
||||
if (proc_send(client_peer, msg, -1, data, size) != 0) {
|
||||
fprintf(stderr, "failed to send command\n");
|
||||
free(data);
|
||||
return (1);
|
||||
}
|
||||
free(data);
|
||||
} else if (msg == MSG_SHELL)
|
||||
client_write_server(msg, NULL, 0);
|
||||
proc_send(client_peer, msg, -1, NULL, 0);
|
||||
|
||||
/* Set the event and dispatch. */
|
||||
client_update_event();
|
||||
event_dispatch();
|
||||
/* Start main loop. */
|
||||
proc_loop(client_proc, NULL);
|
||||
|
||||
/* Print the exit message, if any, and exit. */
|
||||
if (client_attached) {
|
||||
@ -394,144 +384,29 @@ client_send_identify(const char *ttynam, const char *cwd)
|
||||
int fd, flags = client_flags;
|
||||
pid_t pid;
|
||||
|
||||
client_write_one(MSG_IDENTIFY_FLAGS, -1, &flags, sizeof flags);
|
||||
proc_send(client_peer, MSG_IDENTIFY_FLAGS, -1, &flags, sizeof flags);
|
||||
|
||||
if ((s = getenv("TERM")) == NULL)
|
||||
s = "";
|
||||
client_write_one(MSG_IDENTIFY_TERM, -1, s, strlen(s) + 1);
|
||||
proc_send(client_peer, MSG_IDENTIFY_TERM, -1, s, strlen(s) + 1);
|
||||
|
||||
client_write_one(MSG_IDENTIFY_TTYNAME, -1, ttynam, strlen(ttynam) + 1);
|
||||
client_write_one(MSG_IDENTIFY_CWD, -1, cwd, strlen(cwd) + 1);
|
||||
proc_send(client_peer, MSG_IDENTIFY_TTYNAME, -1, ttynam, strlen(ttynam) + 1);
|
||||
proc_send(client_peer, MSG_IDENTIFY_CWD, -1, cwd, strlen(cwd) + 1);
|
||||
|
||||
if ((fd = dup(STDIN_FILENO)) == -1)
|
||||
fatal("dup failed");
|
||||
client_write_one(MSG_IDENTIFY_STDIN, fd, NULL, 0);
|
||||
proc_send(client_peer, MSG_IDENTIFY_STDIN, fd, NULL, 0);
|
||||
|
||||
pid = getpid();
|
||||
client_write_one(MSG_IDENTIFY_CLIENTPID, -1, &pid, sizeof pid);
|
||||
proc_send(client_peer, MSG_IDENTIFY_CLIENTPID, -1, &pid, sizeof pid);
|
||||
|
||||
for (ss = environ; *ss != NULL; ss++) {
|
||||
sslen = strlen(*ss) + 1;
|
||||
if (sslen <= MAX_IMSGSIZE - IMSG_HEADER_SIZE)
|
||||
client_write_one(MSG_IDENTIFY_ENVIRON, -1, *ss, sslen);
|
||||
proc_send(client_peer, MSG_IDENTIFY_ENVIRON, -1, *ss, sslen);
|
||||
}
|
||||
|
||||
client_write_one(MSG_IDENTIFY_DONE, -1, NULL, 0);
|
||||
}
|
||||
|
||||
/* Helper to send one message. */
|
||||
int
|
||||
client_write_one(enum msgtype type, int fd, const void *buf, size_t len)
|
||||
{
|
||||
int retval;
|
||||
|
||||
retval = imsg_compose(&client_ibuf, type, PROTOCOL_VERSION, -1, fd,
|
||||
(void *)buf, len);
|
||||
if (retval != 1)
|
||||
return (-1);
|
||||
return (0);
|
||||
}
|
||||
|
||||
/* Write a message to the server without a file descriptor. */
|
||||
int
|
||||
client_write_server(enum msgtype type, const void *buf, size_t len)
|
||||
{
|
||||
int retval;
|
||||
|
||||
retval = client_write_one(type, -1, buf, len);
|
||||
if (retval == 0)
|
||||
client_update_event();
|
||||
return (retval);
|
||||
}
|
||||
|
||||
/* Update client event based on whether it needs to read or read and write. */
|
||||
void
|
||||
client_update_event(void)
|
||||
{
|
||||
short events;
|
||||
|
||||
event_del(&client_event);
|
||||
events = EV_READ;
|
||||
if (client_ibuf.w.queued > 0)
|
||||
events |= EV_WRITE;
|
||||
event_set(&client_event, client_ibuf.fd, events, client_callback, NULL);
|
||||
event_add(&client_event, NULL);
|
||||
}
|
||||
|
||||
/* Callback to handle signals in the client. */
|
||||
void
|
||||
client_signal(int sig, unused short events, unused void *arg)
|
||||
{
|
||||
struct sigaction sigact;
|
||||
int status;
|
||||
|
||||
if (sig == SIGCHLD)
|
||||
waitpid(WAIT_ANY, &status, WNOHANG);
|
||||
else if (!client_attached) {
|
||||
if (sig == SIGTERM)
|
||||
event_loopexit(NULL);
|
||||
} else {
|
||||
switch (sig) {
|
||||
case SIGHUP:
|
||||
client_exitreason = CLIENT_EXIT_LOST_TTY;
|
||||
client_exitval = 1;
|
||||
client_write_server(MSG_EXITING, NULL, 0);
|
||||
break;
|
||||
case SIGTERM:
|
||||
client_exitreason = CLIENT_EXIT_TERMINATED;
|
||||
client_exitval = 1;
|
||||
client_write_server(MSG_EXITING, NULL, 0);
|
||||
break;
|
||||
case SIGWINCH:
|
||||
client_write_server(MSG_RESIZE, NULL, 0);
|
||||
break;
|
||||
case SIGCONT:
|
||||
memset(&sigact, 0, sizeof sigact);
|
||||
sigemptyset(&sigact.sa_mask);
|
||||
sigact.sa_flags = SA_RESTART;
|
||||
sigact.sa_handler = SIG_IGN;
|
||||
if (sigaction(SIGTSTP, &sigact, NULL) != 0)
|
||||
fatal("sigaction failed");
|
||||
client_write_server(MSG_WAKEUP, NULL, 0);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
client_update_event();
|
||||
}
|
||||
|
||||
/* Callback for client imsg read events. */
|
||||
void
|
||||
client_callback(unused int fd, short events, unused void *arg)
|
||||
{
|
||||
ssize_t n;
|
||||
int retval;
|
||||
|
||||
if (events & EV_READ) {
|
||||
if ((n = imsg_read(&client_ibuf)) == -1 || n == 0)
|
||||
goto lost_server;
|
||||
if (client_attached)
|
||||
retval = client_dispatch_attached();
|
||||
else
|
||||
retval = client_dispatch_wait();
|
||||
if (retval != 0) {
|
||||
event_loopexit(NULL);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if (events & EV_WRITE) {
|
||||
if (msgbuf_write(&client_ibuf.w) <= 0 && errno != EAGAIN)
|
||||
goto lost_server;
|
||||
}
|
||||
|
||||
client_update_event();
|
||||
return;
|
||||
|
||||
lost_server:
|
||||
client_exitreason = CLIENT_EXIT_LOST_SERVER;
|
||||
client_exitval = 1;
|
||||
event_loopexit(NULL);
|
||||
proc_send(client_peer, MSG_IDENTIFY_DONE, -1, NULL, 0);
|
||||
}
|
||||
|
||||
/* Callback for client stdin read events. */
|
||||
@ -544,10 +419,9 @@ client_stdin_callback(unused int fd, unused short events, unused void *arg)
|
||||
if (data.size < 0 && (errno == EINTR || errno == EAGAIN))
|
||||
return;
|
||||
|
||||
client_write_server(MSG_STDIN, &data, sizeof data);
|
||||
proc_send(client_peer, MSG_STDIN, -1, &data, sizeof data);
|
||||
if (data.size <= 0)
|
||||
event_del(&client_stdin);
|
||||
client_update_event();
|
||||
}
|
||||
|
||||
/* Force write to file descriptor. */
|
||||
@ -597,13 +471,65 @@ client_exec(const char *shell)
|
||||
fatal("execl failed");
|
||||
}
|
||||
|
||||
/* Dispatch imsgs when in wait state (before MSG_READY). */
|
||||
int
|
||||
client_dispatch_wait(void)
|
||||
/* Callback to handle signals in the client. */
|
||||
void
|
||||
client_signal(int sig)
|
||||
{
|
||||
struct sigaction sigact;
|
||||
int status;
|
||||
|
||||
if (sig == SIGCHLD)
|
||||
waitpid(WAIT_ANY, &status, WNOHANG);
|
||||
else if (!client_attached) {
|
||||
if (sig == SIGTERM)
|
||||
proc_exit(client_proc);
|
||||
} else {
|
||||
switch (sig) {
|
||||
case SIGHUP:
|
||||
client_exitreason = CLIENT_EXIT_LOST_TTY;
|
||||
client_exitval = 1;
|
||||
proc_send(client_peer, MSG_EXITING, -1, NULL, 0);
|
||||
break;
|
||||
case SIGTERM:
|
||||
client_exitreason = CLIENT_EXIT_TERMINATED;
|
||||
client_exitval = 1;
|
||||
proc_send(client_peer, MSG_EXITING, -1, NULL, 0);
|
||||
break;
|
||||
case SIGWINCH:
|
||||
proc_send(client_peer, MSG_RESIZE, -1, NULL, 0);
|
||||
break;
|
||||
case SIGCONT:
|
||||
memset(&sigact, 0, sizeof sigact);
|
||||
sigemptyset(&sigact.sa_mask);
|
||||
sigact.sa_flags = SA_RESTART;
|
||||
sigact.sa_handler = SIG_IGN;
|
||||
if (sigaction(SIGTSTP, &sigact, NULL) != 0)
|
||||
fatal("sigaction failed");
|
||||
proc_send(client_peer, MSG_WAKEUP, -1, NULL, 0);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Callback for client read events. */
|
||||
void
|
||||
client_dispatch(struct imsg *imsg, unused void *arg)
|
||||
{
|
||||
if (imsg == NULL) {
|
||||
client_exitreason = CLIENT_EXIT_LOST_SERVER;
|
||||
client_exitval = 1;
|
||||
} else if (client_attached)
|
||||
client_dispatch_attached(imsg);
|
||||
else
|
||||
client_dispatch_wait(imsg);
|
||||
}
|
||||
|
||||
/* Dispatch imsgs when in wait state (before MSG_READY). */
|
||||
void
|
||||
client_dispatch_wait(struct imsg *imsg)
|
||||
{
|
||||
struct imsg imsg;
|
||||
char *data;
|
||||
ssize_t n, datalen;
|
||||
ssize_t datalen;
|
||||
struct msg_stdout_data stdoutdata;
|
||||
struct msg_stderr_data stderrdata;
|
||||
int retval;
|
||||
@ -623,163 +549,141 @@ client_dispatch_wait(void)
|
||||
};
|
||||
#endif
|
||||
|
||||
for (;;) {
|
||||
if ((n = imsg_get(&client_ibuf, &imsg)) == -1)
|
||||
fatalx("imsg_get failed");
|
||||
if (n == 0)
|
||||
return (0);
|
||||
data = imsg->data;
|
||||
datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
|
||||
|
||||
data = imsg.data;
|
||||
datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
|
||||
|
||||
log_debug("got %u from server", imsg.hdr.type);
|
||||
switch (imsg.hdr.type) {
|
||||
case MSG_EXIT:
|
||||
case MSG_SHUTDOWN:
|
||||
if (datalen != sizeof retval && datalen != 0)
|
||||
fatalx("bad MSG_EXIT size");
|
||||
if (datalen == sizeof retval) {
|
||||
memcpy(&retval, data, sizeof retval);
|
||||
client_exitval = retval;
|
||||
}
|
||||
imsg_free(&imsg);
|
||||
return (-1);
|
||||
case MSG_READY:
|
||||
if (datalen != 0)
|
||||
fatalx("bad MSG_READY size");
|
||||
|
||||
event_del(&client_stdin);
|
||||
client_attached = 1;
|
||||
client_write_server(MSG_RESIZE, NULL, 0);
|
||||
break;
|
||||
case MSG_STDIN:
|
||||
if (datalen != 0)
|
||||
fatalx("bad MSG_STDIN size");
|
||||
|
||||
event_add(&client_stdin, NULL);
|
||||
break;
|
||||
case MSG_STDOUT:
|
||||
if (datalen != sizeof stdoutdata)
|
||||
fatalx("bad MSG_STDOUT size");
|
||||
memcpy(&stdoutdata, data, sizeof stdoutdata);
|
||||
|
||||
client_write(STDOUT_FILENO, stdoutdata.data,
|
||||
stdoutdata.size);
|
||||
break;
|
||||
case MSG_STDERR:
|
||||
if (datalen != sizeof stderrdata)
|
||||
fatalx("bad MSG_STDERR size");
|
||||
memcpy(&stderrdata, data, sizeof stderrdata);
|
||||
|
||||
client_write(STDERR_FILENO, stderrdata.data,
|
||||
stderrdata.size);
|
||||
break;
|
||||
case MSG_VERSION:
|
||||
if (datalen != 0)
|
||||
fatalx("bad MSG_VERSION size");
|
||||
|
||||
fprintf(stderr, "protocol version mismatch "
|
||||
"(client %d, server %u)\n", PROTOCOL_VERSION,
|
||||
imsg.hdr.peerid);
|
||||
client_exitval = 1;
|
||||
|
||||
imsg_free(&imsg);
|
||||
return (-1);
|
||||
case MSG_SHELL:
|
||||
if (datalen == 0 || data[datalen - 1] != '\0')
|
||||
fatalx("bad MSG_SHELL string");
|
||||
|
||||
clear_signals(0);
|
||||
client_exec(data);
|
||||
/* NOTREACHED */
|
||||
case MSG_DETACH:
|
||||
case MSG_DETACHKILL:
|
||||
client_write_server(MSG_EXITING, NULL, 0);
|
||||
break;
|
||||
case MSG_EXITED:
|
||||
imsg_free(&imsg);
|
||||
return (-1);
|
||||
switch (imsg->hdr.type) {
|
||||
case MSG_EXIT:
|
||||
case MSG_SHUTDOWN:
|
||||
if (datalen != sizeof retval && datalen != 0)
|
||||
fatalx("bad MSG_EXIT size");
|
||||
if (datalen == sizeof retval) {
|
||||
memcpy(&retval, data, sizeof retval);
|
||||
client_exitval = retval;
|
||||
}
|
||||
proc_exit(client_proc);
|
||||
break;
|
||||
case MSG_READY:
|
||||
if (datalen != 0)
|
||||
fatalx("bad MSG_READY size");
|
||||
|
||||
imsg_free(&imsg);
|
||||
event_del(&client_stdin);
|
||||
client_attached = 1;
|
||||
proc_send(client_peer, MSG_RESIZE, -1, NULL, 0);
|
||||
break;
|
||||
case MSG_STDIN:
|
||||
if (datalen != 0)
|
||||
fatalx("bad MSG_STDIN size");
|
||||
|
||||
event_add(&client_stdin, NULL);
|
||||
break;
|
||||
case MSG_STDOUT:
|
||||
if (datalen != sizeof stdoutdata)
|
||||
fatalx("bad MSG_STDOUT size");
|
||||
memcpy(&stdoutdata, data, sizeof stdoutdata);
|
||||
|
||||
client_write(STDOUT_FILENO, stdoutdata.data,
|
||||
stdoutdata.size);
|
||||
break;
|
||||
case MSG_STDERR:
|
||||
if (datalen != sizeof stderrdata)
|
||||
fatalx("bad MSG_STDERR size");
|
||||
memcpy(&stderrdata, data, sizeof stderrdata);
|
||||
|
||||
client_write(STDERR_FILENO, stderrdata.data,
|
||||
stderrdata.size);
|
||||
break;
|
||||
case MSG_VERSION:
|
||||
if (datalen != 0)
|
||||
fatalx("bad MSG_VERSION size");
|
||||
|
||||
fprintf(stderr, "protocol version mismatch "
|
||||
"(client %d, server %u)\n", PROTOCOL_VERSION,
|
||||
imsg->hdr.peerid);
|
||||
client_exitval = 1;
|
||||
proc_exit(client_proc);
|
||||
break;
|
||||
case MSG_SHELL:
|
||||
if (datalen == 0 || data[datalen - 1] != '\0')
|
||||
fatalx("bad MSG_SHELL string");
|
||||
|
||||
clear_signals(0);
|
||||
client_exec(data);
|
||||
/* NOTREACHED */
|
||||
case MSG_DETACH:
|
||||
case MSG_DETACHKILL:
|
||||
proc_send(client_peer, MSG_EXITING, -1, NULL, 0);
|
||||
break;
|
||||
case MSG_EXITED:
|
||||
proc_exit(client_proc);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Dispatch imsgs in attached state (after MSG_READY). */
|
||||
int
|
||||
client_dispatch_attached(void)
|
||||
void
|
||||
client_dispatch_attached(struct imsg *imsg)
|
||||
{
|
||||
struct imsg imsg;
|
||||
struct sigaction sigact;
|
||||
char *data;
|
||||
ssize_t n, datalen;
|
||||
ssize_t datalen;
|
||||
|
||||
for (;;) {
|
||||
if ((n = imsg_get(&client_ibuf, &imsg)) == -1)
|
||||
fatalx("imsg_get failed");
|
||||
if (n == 0)
|
||||
return (0);
|
||||
data = imsg->data;
|
||||
datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
|
||||
|
||||
data = imsg.data;
|
||||
datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
|
||||
switch (imsg->hdr.type) {
|
||||
case MSG_DETACH:
|
||||
case MSG_DETACHKILL:
|
||||
if (datalen == 0 || data[datalen - 1] != '\0')
|
||||
fatalx("bad MSG_DETACH string");
|
||||
|
||||
log_debug("got %u from server", imsg.hdr.type);
|
||||
switch (imsg.hdr.type) {
|
||||
case MSG_DETACH:
|
||||
case MSG_DETACHKILL:
|
||||
if (datalen == 0 || data[datalen - 1] != '\0')
|
||||
fatalx("bad MSG_DETACH string");
|
||||
client_exitsession = xstrdup(data);
|
||||
client_exittype = imsg->hdr.type;
|
||||
if (imsg->hdr.type == MSG_DETACHKILL)
|
||||
client_exitreason = CLIENT_EXIT_DETACHED_HUP;
|
||||
else
|
||||
client_exitreason = CLIENT_EXIT_DETACHED;
|
||||
proc_send(client_peer, MSG_EXITING, -1, NULL, 0);
|
||||
break;
|
||||
case MSG_EXIT:
|
||||
if (datalen != 0 && datalen != sizeof (int))
|
||||
fatalx("bad MSG_EXIT size");
|
||||
|
||||
client_exitsession = xstrdup(data);
|
||||
client_exittype = imsg.hdr.type;
|
||||
if (imsg.hdr.type == MSG_DETACHKILL)
|
||||
client_exitreason = CLIENT_EXIT_DETACHED_HUP;
|
||||
else
|
||||
client_exitreason = CLIENT_EXIT_DETACHED;
|
||||
client_write_server(MSG_EXITING, NULL, 0);
|
||||
break;
|
||||
case MSG_EXIT:
|
||||
if (datalen != 0 && datalen != sizeof (int))
|
||||
fatalx("bad MSG_EXIT size");
|
||||
proc_send(client_peer, MSG_EXITING, -1, NULL, 0);
|
||||
client_exitreason = CLIENT_EXIT_EXITED;
|
||||
break;
|
||||
case MSG_EXITED:
|
||||
if (datalen != 0)
|
||||
fatalx("bad MSG_EXITED size");
|
||||
|
||||
client_write_server(MSG_EXITING, NULL, 0);
|
||||
client_exitreason = CLIENT_EXIT_EXITED;
|
||||
break;
|
||||
case MSG_EXITED:
|
||||
if (datalen != 0)
|
||||
fatalx("bad MSG_EXITED size");
|
||||
proc_exit(client_proc);
|
||||
break;
|
||||
case MSG_SHUTDOWN:
|
||||
if (datalen != 0)
|
||||
fatalx("bad MSG_SHUTDOWN size");
|
||||
|
||||
imsg_free(&imsg);
|
||||
return (-1);
|
||||
case MSG_SHUTDOWN:
|
||||
if (datalen != 0)
|
||||
fatalx("bad MSG_SHUTDOWN size");
|
||||
proc_send(client_peer, MSG_EXITING, -1, NULL, 0);
|
||||
client_exitreason = CLIENT_EXIT_SERVER_EXITED;
|
||||
client_exitval = 1;
|
||||
break;
|
||||
case MSG_SUSPEND:
|
||||
if (datalen != 0)
|
||||
fatalx("bad MSG_SUSPEND size");
|
||||
|
||||
client_write_server(MSG_EXITING, NULL, 0);
|
||||
client_exitreason = CLIENT_EXIT_SERVER_EXITED;
|
||||
client_exitval = 1;
|
||||
break;
|
||||
case MSG_SUSPEND:
|
||||
if (datalen != 0)
|
||||
fatalx("bad MSG_SUSPEND size");
|
||||
memset(&sigact, 0, sizeof sigact);
|
||||
sigemptyset(&sigact.sa_mask);
|
||||
sigact.sa_flags = SA_RESTART;
|
||||
sigact.sa_handler = SIG_DFL;
|
||||
if (sigaction(SIGTSTP, &sigact, NULL) != 0)
|
||||
fatal("sigaction failed");
|
||||
kill(getpid(), SIGTSTP);
|
||||
break;
|
||||
case MSG_LOCK:
|
||||
if (datalen == 0 || data[datalen - 1] != '\0')
|
||||
fatalx("bad MSG_LOCK string");
|
||||
|
||||
memset(&sigact, 0, sizeof sigact);
|
||||
sigemptyset(&sigact.sa_mask);
|
||||
sigact.sa_flags = SA_RESTART;
|
||||
sigact.sa_handler = SIG_DFL;
|
||||
if (sigaction(SIGTSTP, &sigact, NULL) != 0)
|
||||
fatal("sigaction failed");
|
||||
kill(getpid(), SIGTSTP);
|
||||
break;
|
||||
case MSG_LOCK:
|
||||
if (datalen == 0 || data[datalen - 1] != '\0')
|
||||
fatalx("bad MSG_LOCK string");
|
||||
|
||||
system(data);
|
||||
client_write_server(MSG_UNLOCK, NULL, 0);
|
||||
break;
|
||||
}
|
||||
|
||||
imsg_free(&imsg);
|
||||
system(data);
|
||||
proc_send(client_peer, MSG_UNLOCK, -1, NULL, 0);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user