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When running the command in a pty, defer the call to exec_setup()

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until just before we exec the command.  This is consistent with the
non-pty path.  As a side effect, the monitor process runs as root
and not the runas user.
This commit is contained in:
Todd C. Miller
2013-03-05 06:56:57 -05:00
parent a43318959a
commit 19f37400d6
1 changed files with 8 additions and 10 deletions
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18
src/exec_pty.c
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@@ -707,16 +707,14 @@ fork_pty(struct command_details *details, int sv[], int *maxfd, sigset_t *omask)
close(signal_pipe[1]); close(signal_pipe[1]);
fcntl(sv[1], F_SETFD, FD_CLOEXEC); fcntl(sv[1], F_SETFD, FD_CLOEXEC);
sigprocmask(SIG_SETMASK, omask, NULL); sigprocmask(SIG_SETMASK, omask, NULL);
if (exec_setup(details, slavename, io_fds[SFD_SLAVE]) == true) { /* Close the other end of the stdin/stdout/stderr pipes and exec. */
/* Close the other end of the stdin/stdout/stderr pipes and exec. */ if (io_pipe[STDIN_FILENO][1])
if (io_pipe[STDIN_FILENO][1]) close(io_pipe[STDIN_FILENO][1]);
close(io_pipe[STDIN_FILENO][1]); if (io_pipe[STDOUT_FILENO][0])
if (io_pipe[STDOUT_FILENO][0]) close(io_pipe[STDOUT_FILENO][0]);
close(io_pipe[STDOUT_FILENO][0]); if (io_pipe[STDERR_FILENO][0])
if (io_pipe[STDERR_FILENO][0]) close(io_pipe[STDERR_FILENO][0]);
close(io_pipe[STDERR_FILENO][0]); exec_monitor(details, sv[1]);
exec_monitor(details, sv[1]);
}
cstat.type = CMD_ERRNO; cstat.type = CMD_ERRNO;
cstat.val = errno; cstat.val = errno;
ignore_result(send(sv[1], &cstat, sizeof(cstat), 0)); ignore_result(send(sv[1], &cstat, sizeof(cstat), 0));