2 * $Id: prgbox.c,v 1.14 2019/07/25 00:07:15 tom Exp $
4 * prgbox.c -- implements the prg box
6 * Copyright 2011-2016,2019 Thomas E. Dickey
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU Lesser General Public License, version 2.1
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this program; if not, write to
19 * Free Software Foundation, Inc.
20 * 51 Franklin St., Fifth Floor
21 * Boston, MA 02110, USA.
33 * Open a pipe which ties stderr and stdout together.
36 dlg_popen(const char *command, const char *type)
41 if ((*type == 'r' || *type == 'w') && pipe(fd) == 0) {
51 if (fd[1] != STDOUT_FILENO) {
52 (void) dup2(fd[1], STDOUT_FILENO);
55 (void) dup2(STDOUT_FILENO, STDERR_FILENO);
58 if (fd[0] != STDIN_FILENO) {
59 (void) dup2(fd[0], STDIN_FILENO);
63 (void) close(STDERR_FILENO);
66 * Bourne shell needs "-c" option to force it to use only the
67 * given command. Also, it needs the command to be parsed into
70 if ((blob = malloc(10 + strlen(command))) != 0) {
72 sprintf(blob, "sh -c \"%s\"", command);
73 argv = dlg_string_to_argv(blob);
80 result = fdopen(fd[0], type);
83 result = fdopen(fd[1], type);
94 * Display text from a pipe in a scrolling window.
97 dialog_prgbox(const char *title,
106 void (*oldreaper) (int) = signal(SIGCHLD, reapchild);
108 fp = dlg_popen(command, "r");
110 dlg_exiterr("pipe open failed: %s", command);
112 code = dlg_progressbox(title, cprompt, height, width, pauseopt, fp);
115 signal(SIGCHLD, oldreaper);