diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/io.c | 13 |
1 files changed, 13 insertions, 0 deletions
@@ -270,6 +270,7 @@ mrb_io_s_popen(mrb_state *mrb, mrb_value klass) mrb_value cmd, io, result; mrb_value mode = mrb_str_new_cstr(mrb, "r"); mrb_value opt = mrb_hash_new(mrb); + mrb_value opt_in, opt_out, opt_err; struct mrb_io *fptr; const char *pname; @@ -315,6 +316,18 @@ mrb_io_s_popen(mrb_state *mrb, mrb_value klass) result = mrb_nil_value(); switch (pid = fork()) { case 0: /* child */ + opt_in = mrb_funcall(mrb, opt, "[]", 1, mrb_symbol_value(mrb_intern_lit(mrb, "in"))); + opt_out = mrb_funcall(mrb, opt, "[]", 1, mrb_symbol_value(mrb_intern_lit(mrb, "out"))); + opt_err = mrb_funcall(mrb, opt, "[]", 1, mrb_symbol_value(mrb_intern_lit(mrb, "err"))); + if (!mrb_nil_p(opt_in)) { + dup2(mrb_fixnum(mrb_io_fileno(mrb, opt_in)), 0); + } + if (!mrb_nil_p(opt_out)) { + dup2(mrb_fixnum(mrb_io_fileno(mrb, opt_out)), 1); + } + if (!mrb_nil_p(opt_err)) { + dup2(mrb_fixnum(mrb_io_fileno(mrb, opt_err)), 2); + } if (flags & FMODE_READABLE) { close(pr[0]); if (pr[1] != 1) { |