diff options
Diffstat (limited to 'io.c')
-rw-r--r-- | io.c | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -7237,6 +7237,9 @@ io_cntl(int fd, unsigned long cmd, long narg, int io_p) # else retval = io_p?ioctl(fd, cmd, narg):fcntl(fd, (int)cmd, narg); # endif + if (!io_p && retval != -1 && cmd == F_DUPFD) { + UPDATE_MAXFD(retval); + } #else if (!io_p) { rb_notimplement(); |