diff options
Diffstat (limited to 'ext')
-rw-r--r-- | ext/readline/readline.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/ext/readline/readline.c b/ext/readline/readline.c index 3114b38bd3..34ce023bea 100644 --- a/ext/readline/readline.c +++ b/ext/readline/readline.c @@ -40,6 +40,10 @@ #include <unistd.h> #endif +#ifdef HAVE_SYS_STAT_H +#include <sys/stat.h> +#endif + static VALUE mReadline; #define EDIT_LINE_LIBRARY_VERSION "EditLine wrapper" @@ -372,6 +376,13 @@ readline_readline(int argc, VALUE *argv, VALUE self) } if (!isatty(fileno(rl_instream)) && errno == EBADF) rb_raise(rb_eIOError, "closed stdin"); + if (rl_outstream) { + struct stat stbuf; + int fd = fileno(rl_outstream); + if (fd < 0 || fstat(fd, &stbuf) != 0) { + rb_raise(rb_eIOError, "closed stdout"); + } + } #ifdef _WIN32 rl_prep_terminal(1); |