1 files changed, 67 insertions, 0 deletions
diff --git a/busybox/coreutils/cat.c b/busybox/coreutils/cat.c
new file mode 100644
index 0000000..62af6c5
--- /dev/null
+++ b/busybox/coreutils/cat.c
@@ -0,0 +1,67 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * cat implementation for busybox
+ *
+ * Copyright (C) 2003  Manuel Novoa III  <mjn3@codepoet.org>
+ *
+ * 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
+ *
+ */
+
+/* BB_AUDIT SUSv3 compliant */
+/* http://www.opengroup.org/onlinepubs/007904975/utilities/cat.html */
+
+/* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)
+ *
+ * This is a new implementation of 'cat' which aims to be SUSv3 compliant.
+ *
+ * Changes from the previous implementation include:
+ * 1) Multiple '-' args are accepted as required by SUSv3.  The previous
+ *    implementation would close stdin and segfault on a subsequent '-'.
+ * 2) The '-u' options is required by SUSv3.  Note that the specified
+ *    behavior for '-u' is done by default, so all we need do is accept
+ *    the option.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include "busybox.h"
+
+extern int cat_main(int argc, char **argv)
+{
+	FILE *f;
+	int retval = EXIT_SUCCESS;
+
+	bb_getopt_ulflags(argc, argv, "u");
+
+	argv += optind;
+	if (!*argv) {
+		*--argv = "-";
+	}
+
+	do {
+		if ((f = bb_wfopen_input(*argv)) != NULL) {
+			int r = bb_copyfd_eof(fileno(f), STDOUT_FILENO);
+			bb_fclose_nonstdin(f);
+			if (r >= 0) {
+				continue;
+			}
+		}
+		retval = EXIT_FAILURE;
+	} while (*++argv);
+
+	return retval;
+}