/* vi: set sw=4 ts=4: */ /* * 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** FAST_FUNC 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_1_to_2(*argv, "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; }