1 /* vi: set sw=4 ts=4: */
3 * wfopen_input implementation for busybox
5 * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
7 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
11 /* A number of applets need to open a file for reading, where the filename
12 * is a command line arg. Since often that arg is '-' (meaning stdin),
13 * we avoid testing everywhere by consolidating things in this routine.
16 FILE* FAST_FUNC fopen_or_warn_stdin(const char *filename)
20 if (filename != bb_msg_standard_input
21 && NOT_LONE_DASH(filename)
23 fp = fopen_or_warn(filename, "r");
28 FILE* FAST_FUNC xfopen_stdin(const char *filename)
30 FILE *fp = fopen_or_warn_stdin(filename);
33 xfunc_die(); /* We already output an error message. */
36 int FAST_FUNC open_or_warn_stdin(const char *filename)
38 int fd = STDIN_FILENO;
40 if (filename != bb_msg_standard_input
41 && NOT_LONE_DASH(filename)
43 fd = open_or_warn(filename, O_RDONLY);
49 int FAST_FUNC xopen_stdin(const char *filename)
51 int fd = open_or_warn_stdin(filename);
54 xfunc_die(); /* We already output an error message. */