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Diffstat (limited to 'i/pc104/initrd/conf/busybox/libbb/wfopen_input.c')
-rw-r--r--i/pc104/initrd/conf/busybox/libbb/wfopen_input.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/libbb/wfopen_input.c b/i/pc104/initrd/conf/busybox/libbb/wfopen_input.c
new file mode 100644
index 0000000..7a11dac
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/libbb/wfopen_input.c
@@ -0,0 +1,31 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * wfopen_input implementation for busybox
+ *
+ * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+/* 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 "libbb.h"
+
+FILE *fopen_or_warn_stdin(const char *filename)
+{
+ FILE *fp = stdin;
+
+ if (filename != bb_msg_standard_input
+ && filename[0]
+ && NOT_LONE_DASH(filename)
+ ) {
+ fp = fopen_or_warn(filename, "r");
+ }
+
+ return fp;
+}