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Login shell can be a client flag, and move the exec code into client.c.

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This commit is contained in:
nicm
2015-08-30 22:40:25 +00:00
parent dd92b6e83d
commit c6e9160c67
3 changed files with 57 additions and 50 deletions
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67
client.c
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@@ -33,6 +33,7 @@
#include "tmux.h"
int client_flags;
struct imsgbuf client_ibuf;
struct event client_event;
struct event client_stdin;
@@ -51,9 +52,10 @@ 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(int);
void client_send_identify(void);
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);
@@ -62,7 +64,7 @@ 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 *);
int client_dispatch_wait(void);
const char *client_exit_message(void);
/*
@@ -215,6 +217,9 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
struct termios tio, saved_tio;
size_t size;
/* Save the flags. */
client_flags = flags;
/* Set up the initial command. */
cmdflags = 0;
if (shell_cmd != NULL) {
@@ -266,13 +271,13 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
/* Create imsg. */
imsg_init(&client_ibuf, fd);
event_set(&client_event, fd, EV_READ, client_callback, shell_cmd);
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,
client_stdin_callback, NULL);
if (flags & CLIENT_CONTROLCONTROL) {
if (client_flags & CLIENT_CONTROLCONTROL) {
if (tcgetattr(STDIN_FILENO, &saved_tio) != 0) {
fprintf(stderr, "tcgetattr failed: %s\n",
strerror(errno));
@@ -291,7 +296,7 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
}
/* Send identify messages. */
client_send_identify(flags);
client_send_identify();
/* Send first command. */
if (msg == MSG_COMMAND) {
@@ -326,13 +331,13 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
/* Print the exit message, if any, and exit. */
if (client_attached) {
if (client_exitreason != CLIENT_EXIT_NONE && !login_shell)
if (client_exitreason != CLIENT_EXIT_NONE)
printf("[%s]\n", client_exit_message());
ppid = getppid();
if (client_exittype == MSG_DETACHKILL && ppid > 1)
kill(ppid, SIGHUP);
} else if (flags & CLIENT_CONTROLCONTROL) {
} else if (client_flags & CLIENT_CONTROLCONTROL) {
if (client_exitreason != CLIENT_EXIT_NONE)
printf("%%exit %s\n", client_exit_message());
else
@@ -346,12 +351,12 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
/* Send identify messages to server. */
void
client_send_identify(int flags)
client_send_identify(void)
{
const char *s;
char **ss;
size_t sslen;
int fd;
int fd, flags = client_flags;
pid_t pid;
client_write_one(MSG_IDENTIFY_FLAGS, -1, &flags, sizeof flags);
@@ -421,14 +426,13 @@ client_update_event(void)
events = EV_READ;
if (client_ibuf.w.queued > 0)
events |= EV_WRITE;
event_set(
&client_event, client_ibuf.fd, events, client_callback, shell_cmd);
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 *data)
client_signal(int sig, unused short events, unused void *arg)
{
struct sigaction sigact;
int status;
@@ -470,7 +474,7 @@ client_signal(int sig, unused short events, unused void *data)
/* Callback for client imsg read events. */
void
client_callback(unused int fd, short events, void *data)
client_callback(unused int fd, short events, unused void *arg)
{
ssize_t n;
int retval;
@@ -481,7 +485,7 @@ client_callback(unused int fd, short events, void *data)
if (client_attached)
retval = client_dispatch_attached();
else
retval = client_dispatch_wait(data);
retval = client_dispatch_wait();
if (retval != 0) {
event_loopexit(NULL);
return;
@@ -504,7 +508,7 @@ lost_server:
/* Callback for client stdin read events. */
void
client_stdin_callback(unused int fd, unused short events, unused void *data1)
client_stdin_callback(unused int fd, unused short events, unused void *arg)
{
struct msg_stdin_data data;
@@ -536,9 +540,38 @@ client_write(int fd, const char *data, size_t size)
}
}
/* Run command in shell; used for -c. */
__dead void
client_exec(const char *shell)
{
const char *name, *ptr;
char *argv0;
log_debug("shell %s, command %s", shell, shell_cmd);
ptr = strrchr(shell, '/');
if (ptr != NULL && *(ptr + 1) != '\0')
name = ptr + 1;
else
name = shell;
if (client_flags & CLIENT_LOGIN)
xasprintf(&argv0, "-%s", name);
else
xasprintf(&argv0, "%s", name);
setenv("SHELL", shell, 1);
setblocking(STDIN_FILENO, 1);
setblocking(STDOUT_FILENO, 1);
setblocking(STDERR_FILENO, 1);
closefrom(STDERR_FILENO + 1);
execl(shell, argv0, "-c", shell_cmd, (char *) NULL);
fatal("execl failed");
}
/* Dispatch imsgs when in wait state (before MSG_READY). */
int
client_dispatch_wait(void *data0)
client_dispatch_wait(void)
{
struct imsg imsg;
char *data;
@@ -614,7 +647,7 @@ client_dispatch_wait(void *data0)
fatalx("bad MSG_SHELL string");
clear_signals(0);
shell_exec(data, data0);
client_exec(data);
/* NOTREACHED */
case MSG_DETACH:
case MSG_DETACHKILL: