diff options
| -rw-r--r-- | usr.bin/su/su.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/usr.bin/su/su.c b/usr.bin/su/su.c index ba592b0..dd1602d 100644 --- a/usr.bin/su/su.c +++ b/usr.bin/su/su.c @@ -156,7 +156,7 @@ main(int argc, char *argv[]) char * const *b; } np; uid_t ruid; - pid_t child_pid, pid; + pid_t child_pid, child_pgrp, pid; int asme, ch, asthem, fastlogin, prio, i, retcode, statusp, setmaclabel; u_int setwhat; @@ -392,17 +392,30 @@ main(int argc, char *argv[]) sa.sa_handler = SIG_IGN; sigaction(SIGTTOU, &sa, NULL); close(fds[0]); + setpgid(child_pid, child_pid); + if (tcgetpgrp(STDERR_FILENO) == getpgrp()) + tcsetpgrp(STDERR_FILENO, child_pid); close(fds[1]); sigaction(SIGPIPE, &sa_pipe, NULL); while ((pid = waitpid(child_pid, &statusp, WUNTRACED)) != -1) { if (WIFSTOPPED(statusp)) { + child_pgrp = getpgid(child_pid); + if (tcgetpgrp(STDERR_FILENO) == child_pgrp) + tcsetpgrp(STDERR_FILENO, getpgrp()); kill(getpid(), SIGSTOP); + if (tcgetpgrp(STDERR_FILENO) == getpgrp()) { + child_pgrp = getpgid(child_pid); + tcsetpgrp(STDERR_FILENO, child_pgrp); + } kill(child_pid, SIGCONT); statusp = 1; continue; } break; } + child_pgrp = getpgid(child_pid); + if (tcgetpgrp(STDERR_FILENO) == child_pgrp) + tcsetpgrp(STDERR_FILENO, getpgrp()); if (pid == -1) err(1, "waitpid"); PAM_END(); |
