1 files changed, 84 insertions, 0 deletions
diff --git a/networking/libiproute/ip_parse_common_args.c b/networking/libiproute/ip_parse_common_args.c
new file mode 100644
index 0000000..5e4012b
--- /dev/null
+++ b/networking/libiproute/ip_parse_common_args.c
@@ -0,0 +1,84 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * ip.c		"ip" utility frontend.
+ *
+ *		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.
+ *
+ * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ *
+ *
+ * Changes:
+ *
+ * Rani Assaf <rani@magic.metawire.com> 980929:	resolve addresses
+ */
+
+#include "ip_common.h"  /* #include "libbb.h" is inside */
+#include "utils.h"
+
+family_t preferred_family = AF_UNSPEC;
+smallint oneline;
+char _SL_;
+
+char **ip_parse_common_args(char **argv)
+{
+	static const char ip_common_commands[] ALIGN1 =
+		"oneline" "\0"
+		"family" "\0"
+		"4" "\0"
+		"6" "\0"
+		"0" "\0"
+		;
+	enum {
+		ARG_oneline,
+		ARG_family,
+		ARG_IPv4,
+		ARG_IPv6,
+		ARG_packet,
+	};
+	static const family_t af_numbers[] = { AF_INET, AF_INET6, AF_PACKET };
+	int arg;
+
+	while (*argv) {
+		char *opt = *argv;
+
+		if (opt[0] != '-')
+			break;
+		opt++;
+		if (opt[0] == '-') {
+			opt++;
+			if (!opt[0]) { /* "--" */
+				argv++;
+				break;
+			}
+		}
+		arg = index_in_substrings(ip_common_commands, opt);
+		if (arg < 0)
+			bb_show_usage();
+		if (arg == ARG_oneline) {
+			oneline = 1;
+			argv++;
+			continue;
+		}
+		if (arg == ARG_family) {
+			static const char families[] ALIGN1 =
+				"inet" "\0" "inet6" "\0" "link" "\0";
+			argv++;
+			if (!*argv)
+				bb_show_usage();
+			arg = index_in_strings(families, *argv);
+			if (arg < 0)
+				invarg(*argv, "protocol family");
+			/* now arg == 0, 1 or 2 */
+		} else {
+			arg -= ARG_IPv4;
+			/* now arg == 0, 1 or 2 */
+		}
+		preferred_family = af_numbers[arg];
+		argv++;
+	}
+	_SL_ = oneline ? '\\' : '\n';
+	return argv;
+}