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Pass current directory as a string rather than a file descriptor because

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pledge doesn't let us pass directory file descriptors.
This commit is contained in:
nicm 2015-10-18 20:42:42 +00:00
parent 9c601ebde8
commit 174a2ad731
3 changed files with 15 additions and 13 deletions
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18
client.c
View File

@ -55,7 +55,7 @@ int client_attached;
__dead void client_exec(const char *); __dead void client_exec(const char *);
int client_get_lock(char *); int client_get_lock(char *);
int client_connect(struct event_base *, char *, int); int client_connect(struct event_base *, char *, int);
void client_send_identify(const char *, int); void client_send_identify(const char *, const char *);
int client_write_one(enum msgtype, int, const void *, size_t); int client_write_one(enum msgtype, int, const void *, size_t);
int client_write_server(enum msgtype, const void *, size_t); int client_write_server(enum msgtype, const void *, size_t);
void client_update_event(void); void client_update_event(void);
@ -214,11 +214,11 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
struct cmd *cmd; struct cmd *cmd;
struct cmd_list *cmdlist; struct cmd_list *cmdlist;
struct msg_command_data *data; struct msg_command_data *data;
int cmdflags, fd, i, cwd; int cmdflags, fd, i;
const char* ttynam; const char *ttynam, *cwd;
pid_t ppid; pid_t ppid;
enum msgtype msg; enum msgtype msg;
char *cause; char *cause, path[PATH_MAX];
struct termios tio, saved_tio; struct termios tio, saved_tio;
size_t size; size_t size;
@ -275,8 +275,8 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
} }
/* Save these before pledge(). */ /* Save these before pledge(). */
if ((cwd = open(".", O_RDONLY)) == -1) if ((cwd = getcwd(path, sizeof path)) == NULL)
cwd = open("/", O_RDONLY); cwd = "/";
if ((ttynam = ttyname(STDIN_FILENO)) == NULL) if ((ttynam = ttyname(STDIN_FILENO)) == NULL)
ttynam = ""; ttynam = "";
@ -325,7 +325,7 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
} }
/* Send identify messages. */ /* Send identify messages. */
client_send_identify(ttynam, cwd); /* closes cwd */ client_send_identify(ttynam, cwd);
/* Send first command. */ /* Send first command. */
if (msg == MSG_COMMAND) { if (msg == MSG_COMMAND) {
@ -380,7 +380,7 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
/* Send identify messages to server. */ /* Send identify messages to server. */
void void
client_send_identify(const char *ttynam, int cwd) client_send_identify(const char *ttynam, const char *cwd)
{ {
const char *s; const char *s;
char **ss; char **ss;
@ -395,7 +395,7 @@ client_send_identify(const char *ttynam, int cwd)
client_write_one(MSG_IDENTIFY_TERM, -1, s, strlen(s) + 1); client_write_one(MSG_IDENTIFY_TERM, -1, s, strlen(s) + 1);
client_write_one(MSG_IDENTIFY_TTYNAME, -1, ttynam, strlen(ttynam) + 1); client_write_one(MSG_IDENTIFY_TTYNAME, -1, ttynam, strlen(ttynam) + 1);
client_write_one(MSG_IDENTIFY_CWD, cwd, NULL, 0); client_write_one(MSG_IDENTIFY_CWD, -1, cwd, strlen(cwd) + 1);
if ((fd = dup(STDIN_FILENO)) == -1) if ((fd = dup(STDIN_FILENO)) == -1)
fatal("dup failed"); fatal("dup failed");

7
server-client.c
View File

@ -1166,9 +1166,10 @@ server_client_msg_identify(struct client *c, struct imsg *imsg)
c->ttyname = xstrdup(data); c->ttyname = xstrdup(data);
break; break;
case MSG_IDENTIFY_CWD: case MSG_IDENTIFY_CWD:
if (datalen != 0) if (datalen == 0 || data[datalen - 1] != '\0')
fatalx("bad MSG_IDENTIFY_CWD size"); fatalx("bad MSG_IDENTIFY_CWD string");
c->cwd = imsg->fd; if ((c->cwd = open(data, O_RDONLY)) == -1)
c->cwd = open("/", O_RDONLY);
break; break;
case MSG_IDENTIFY_STDIN: case MSG_IDENTIFY_STDIN:
if (datalen != 0) if (datalen != 0)

3
tmux.h
View File

@ -395,11 +395,12 @@ enum msgtype {
MSG_IDENTIFY_FLAGS = 100, MSG_IDENTIFY_FLAGS = 100,
MSG_IDENTIFY_TERM, MSG_IDENTIFY_TERM,
MSG_IDENTIFY_TTYNAME, MSG_IDENTIFY_TTYNAME,
MSG_IDENTIFY_CWD, MSG_IDENTIFY_OLDCWD, /* unused */
MSG_IDENTIFY_STDIN, MSG_IDENTIFY_STDIN,
MSG_IDENTIFY_ENVIRON, MSG_IDENTIFY_ENVIRON,
MSG_IDENTIFY_DONE, MSG_IDENTIFY_DONE,
MSG_IDENTIFY_CLIENTPID, MSG_IDENTIFY_CLIENTPID,
MSG_IDENTIFY_CWD,
MSG_COMMAND = 200, MSG_COMMAND = 200,
MSG_DETACH, MSG_DETACH,