diff options
| -rw-r--r-- | builtin.c | 12 | ||||
| -rw-r--r-- | io.c | 2 |
2 files changed, 12 insertions, 2 deletions
@@ -1664,8 +1664,12 @@ do_printf(int nargs, int redirtype) if (redir_exp->type != Node_val) fatal(_("attempt to use array `%s' in a scalar context"), array_vname(redir_exp)); rp = redirect(redir_exp, redirtype, & errflg); - if (rp != NULL) + if (rp != NULL) { + if ((rp->flag & RED_TWOWAY) != 0 && rp->output.fp == NULL) { + fatal(_("printf: attempt to write to closed write end of two-way pipe")); + } fp = rp->output.fp; + } } else if (do_debug) /* only the debugger can change the default output */ fp = output_fp; else @@ -2136,8 +2140,12 @@ do_print(int nargs, int redirtype) if (redir_exp->type != Node_val) fatal(_("attempt to use array `%s' in a scalar context"), array_vname(redir_exp)); rp = redirect(redir_exp, redirtype, & errflg); - if (rp != NULL) + if (rp != NULL) { + if ((rp->flag & RED_TWOWAY) != 0 && rp->output.fp == NULL) { + fatal(_("print: attempt to write to closed write end of two-way pipe")); + } fp = rp->output.fp; + } } else if (do_debug) /* only the debugger can change the default output */ fp = output_fp; else @@ -2473,6 +2473,8 @@ do_getline_redir(int into_variable, enum redirval redirtype) update_ERRNO_int(redir_error); } return make_number((AWKNUM) -1.0); + } else if ((rp->flag & RED_TWOWAY) != 0 && rp->iop == NULL) { + fatal(_("getline: attempt to read from closed read end of two-way pipe")); } iop = rp->iop; if (iop == NULL) /* end of input */ |