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Set $TMUX without the session when background jobs are run.

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This commit is contained in:
Nicholas Marriott
2011-01-23 11:03:43 +00:00
parent 1377427e70
commit b8023044c3
5 changed files with 35 additions and 48 deletions
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2
cmd.c
View File

@@ -356,7 +356,7 @@ cmd_current_session(struct cmd_ctx *ctx)
}
/* Use the session from the TMUX environment variable. */
if (data != NULL && data->pid == getpid()) {
if (data != NULL && data->pid == getpid() && data->idx != -1) {
s = session_find_by_index(data->idx);
if (s != NULL)
return (s);

12
job.c
View File

@@ -137,7 +137,8 @@ job_free(struct job *job)
int
job_run(struct job *job)
{
int nullfd, out[2];
struct environ env;
int nullfd, out[2];
if (job->fd != -1 || job->pid != -1)
return (0);
@@ -145,13 +146,19 @@ job_run(struct job *job)
if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, out) != 0)
return (-1);
environ_init(&env);
environ_copy(&global_environ, &env);
server_fill_environ(NULL, &env);
switch (job->pid = fork()) {
case -1:
environ_free(&env);
return (-1);
case 0: /* child */
clear_signals(1);
environ_push(&global_environ);
environ_push(&env);
environ_free(&env);
if (dup2(out[1], STDOUT_FILENO) == -1)
fatal("dup2 failed");
@@ -174,6 +181,7 @@ job_run(struct job *job)
execl(_PATH_BSHELL, "sh", "-c", job->cmd, (char *) NULL);
fatal("execl failed");
default: /* parent */
environ_free(&env);
close(out[1]);
job->fd = out[0];

18
server-fn.c
View File

@@ -30,14 +30,20 @@ void server_callback_identify(int, short, void *);
void
server_fill_environ(struct session *s, struct environ *env)
{
char tmuxvar[MAXPATHLEN], *term;
char var[MAXPATHLEN], *term;
u_int idx;
long pid;
xsnprintf(tmuxvar, sizeof tmuxvar,
"%s,%ld,%u", socket_path, (long) getpid(), s->idx);
environ_set(env, "TMUX", tmuxvar);
if (s != NULL) {
term = options_get_string(&s->options, "default-terminal");
environ_set(env, "TERM", term);
term = options_get_string(&s->options, "default-terminal");
environ_set(env, "TERM", term);
idx = s->idx;
} else
idx = -1;
pid = getpid();
xsnprintf(var, sizeof var, "%s,%ld,%d", socket_path, pid, idx);
environ_set(env, "TMUX", var);
}
void

45
tmux.c
View File

@@ -48,8 +48,8 @@ time_t start_time;
char socket_path[MAXPATHLEN];
int login_shell;
char *environ_path;
pid_t environ_pid;
u_int environ_idx;
pid_t environ_pid = -1;
int environ_idx = -1;
__dead void usage(void);
void parseenvironment(void);
@@ -125,45 +125,18 @@ areshell(const char *shell)
void
parseenvironment(void)
{
char *env, *path_pid, *pid_idx, buf[256];
size_t len;
const char *errstr;
long long ll;
char *env, path[256];
long pid;
int idx;
environ_pid = -1;
if ((env = getenv("TMUX")) == NULL)
return;
if ((path_pid = strchr(env, ',')) == NULL || path_pid == env)
if (sscanf(env, "%255s,%ld,%d", path, &pid, &idx) != 3)
return;
if ((pid_idx = strchr(path_pid + 1, ',')) == NULL)
return;
if ((pid_idx == path_pid + 1 || pid_idx[1] == '\0'))
return;
/* path */
len = path_pid - env;
environ_path = xmalloc(len + 1);
memcpy(environ_path, env, len);
environ_path[len] = '\0';
/* pid */
len = pid_idx - path_pid - 1;
if (len > (sizeof buf) - 1)
return;
memcpy(buf, path_pid + 1, len);
buf[len] = '\0';
ll = strtonum(buf, 0, LONG_MAX, &errstr);
if (errstr != NULL)
return;
environ_pid = ll;
/* idx */
ll = strtonum(pid_idx + 1, 0, UINT_MAX, &errstr);
if (errstr != NULL)
return;
environ_idx = ll;
environ_path = xstrdup(path);
environ_pid = pid;
environ_idx = idx;
}
char *

6
tmux.h
View File

@@ -383,8 +383,8 @@ enum msgtype {
* Don't forget to bump PROTOCOL_VERSION if any of these change!
*/
struct msg_command_data {
pid_t pid; /* pid from $TMUX or -1 */
u_int idx; /* index from $TMUX */
pid_t pid; /* PID from $TMUX or -1 */
int idx; /* index from $TMUX or -1 */
int argc;
char argv[COMMAND_LENGTH];
@@ -1301,7 +1301,7 @@ extern char socket_path[MAXPATHLEN];
extern int login_shell;
extern char *environ_path;
extern pid_t environ_pid;
extern u_int environ_idx;
extern int environ_idx;
void logfile(const char *);
const char *getshell(void);
int checkshell(const char *);