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Terminate the child before closing the PAM session.

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* src/su.c: Terminate the child (if needed) before closing the PAM
	session. This is probably more correct, and avoid reporting
	termination from signals possibly sent by PAM modules (e.g. former
	versions of pam_systemd). Debian#670132
This commit is contained in:
Nicolas François
2013-08-13 19:48:53 +02:00
parent a5e3dbb0e3
commit 8781aff637
2 changed files with 13 additions and 8 deletions
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14
src/su.c
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@@ -372,6 +372,12 @@ static void prepare_pam_close_session (void)
(void) fputs (_("Session terminated, terminating shell..."),
stderr);
(void) kill (-pid_child, caught);
(void) signal (SIGALRM, kill_child);
(void) alarm (2);
(void) wait (&status);
(void) fputs (_(" ...terminated.\n"), stderr);
}
ret = pam_close_session (pamh, 0);
@@ -384,14 +390,6 @@ static void prepare_pam_close_session (void)
(void) pam_setcred (pamh, PAM_DELETE_CRED);
(void) pam_end (pamh, PAM_SUCCESS);
if (0 != caught) {
(void) signal (SIGALRM, kill_child);
(void) alarm (2);
(void) wait (&status);
(void) fputs (_(" ...terminated.\n"), stderr);
}
exit ((0 != WIFEXITED (status)) ? WEXITSTATUS (status)
: WTERMSIG (status) + 128);
/* Only the child returns. See above. */