From cad5364599eb5062d59e0c397ed638ddd61a8d5d Mon Sep 17 00:00:00 2001 From: Manuel Novoa III Date: Wed, 19 Mar 2003 09:13:01 +0000 Subject: Major coreutils update. --- libbb/wfopen_input.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 libbb/wfopen_input.c (limited to 'libbb/wfopen_input.c') diff --git a/libbb/wfopen_input.c b/libbb/wfopen_input.c new file mode 100644 index 000000000..bff6606b5 --- /dev/null +++ b/libbb/wfopen_input.c @@ -0,0 +1,54 @@ +/* vi: set sw=4 ts=4: */ +/* + * wfopen_input implementation for busybox + * + * Copyright (C) 2003 Manuel Novoa III + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +/* A number of applets need to open a file for reading, where the filename + * is a command line arg. Since often that arg is '-' (meaning stdin), + * we avoid testing everywhere by consolidating things in this routine. + * + * Note: We also consider "" to main stdin (for 'cmp' at least). + */ + +#include +#include +#include + +FILE *bb_wfopen_input(const char *filename) +{ + FILE *fp = stdin; + + if ((filename != bb_msg_standard_input) + && filename[0] && ((filename[0] != '-') || filename[1]) + ) { +#if 0 + /* This check shouldn't be necessary for linux, but is left + * here disabled just in case. */ + struct stat stat_buf; + if (is_directory(filename, 1, &stat_buf)) { + bb_error_msg("%s: Is a directory", filename); + return NULL; + } +#endif + fp = bb_wfopen(filename, "r"); + } + + return fp; +} -- cgit v1.2.3