From 9b58fe9c0b7b10bca17f033d7928e65ab5065fc9 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Mon, 15 Jul 2013 05:15:46 +0200 Subject: [PATCH] ip: code shrink function old new delta do_ipaddr 78 81 +3 do_iprule 140 139 -1 do_iptunnel 283 278 -5 iprule_modify 851 841 -10 ipaddr_modify 1293 1236 -57 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/4 up/down: 3/-73) Total: -70 bytes Signed-off-by: Denys Vlasenko --- networking/libiproute/ipaddress.c | 22 +++++++++------------- networking/libiproute/iprule.c | 8 ++++---- networking/libiproute/iptunnel.c | 6 +++--- 3 files changed, 16 insertions(+), 20 deletions(-) diff --git a/networking/libiproute/ipaddress.c b/networking/libiproute/ipaddress.c index 3fd3f44..aa4779a 100644 --- a/networking/libiproute/ipaddress.c +++ b/networking/libiproute/ipaddress.c @@ -627,10 +627,12 @@ static int ipaddr_modify(int cmd, char **argv) req.ifa.ifa_family = preferred_family; while (*argv) { - const smalluint arg = index_in_strings(option, *argv); - if (arg <= 1) { /* peer, remote */ + unsigned arg = index_in_strings(option, *argv); + /* if search fails, "local" is assumed */ + if ((int)arg >= 0) NEXT_ARG(); + if (arg <= 1) { /* peer, remote */ if (peer_len) { duparg("peer", *argv); } @@ -643,7 +645,6 @@ static int ipaddr_modify(int cmd, char **argv) req.ifa.ifa_prefixlen = peer.bitlen; } else if (arg <= 3) { /* broadcast, brd */ inet_prefix addr; - NEXT_ARG(); if (brd_len) { duparg("broadcast", *argv); } @@ -660,7 +661,6 @@ static int ipaddr_modify(int cmd, char **argv) } } else if (arg == 4) { /* anycast */ inet_prefix addr; - NEXT_ARG(); if (any_len) { duparg("anycast", *argv); } @@ -672,22 +672,18 @@ static int ipaddr_modify(int cmd, char **argv) any_len = addr.bytelen; } else if (arg == 5) { /* scope */ uint32_t scope = 0; - NEXT_ARG(); if (rtnl_rtscope_a2n(&scope, *argv)) { invarg(*argv, "scope"); } req.ifa.ifa_scope = scope; scoped = 1; } else if (arg == 6) { /* dev */ - NEXT_ARG(); d = *argv; } else if (arg == 7) { /* label */ - NEXT_ARG(); l = *argv; addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l) + 1); } else { - if (arg == 8) /* local */ - NEXT_ARG(); + /* local (specified or assumed) */ if (local_len) { duparg2("local", *argv); } @@ -724,7 +720,7 @@ static int ipaddr_modify(int cmd, char **argv) } brd = peer; if (brd.bitlen <= 30) { - for (i=31; i>=brd.bitlen; i--) { + for (i = 31; i >= brd.bitlen; i--) { if (brd_len == -1) brd.data[0] |= htonl(1<<(31-i)); else @@ -754,11 +750,11 @@ int FAST_FUNC do_ipaddr(char **argv) { static const char commands[] ALIGN1 = "add\0""delete\0""list\0""show\0""lst\0""flush\0"; - smalluint cmd = 2; + int cmd = 2; if (*argv) { cmd = index_in_substrings(commands, *argv); - if (cmd > 5) - bb_error_msg_and_die(bb_msg_invalid_arg, *argv, applet_name); + if (cmd < 0) + invarg(*argv, applet_name); argv++; if (cmd <= 1) return ipaddr_modify((cmd == 0) ? RTM_NEWADDR : RTM_DELADDR, argv); diff --git a/networking/libiproute/iprule.c b/networking/libiproute/iprule.c index 241a6bf..8dbe6bd 100644 --- a/networking/libiproute/iprule.c +++ b/networking/libiproute/iprule.c @@ -215,7 +215,7 @@ static int iprule_modify(int cmd, char **argv) while (*argv) { key = index_in_substrings(keywords, *argv) + 1; if (key == 0) /* no match found in keywords array, bail out. */ - bb_error_msg_and_die(bb_msg_invalid_arg, *argv, applet_name); + invarg(*argv, applet_name); if (key == ARG_from) { inet_prefix dst; NEXT_ARG(); @@ -308,9 +308,9 @@ int FAST_FUNC do_iprule(char **argv) static const char ip_rule_commands[] ALIGN1 = "add\0""delete\0""list\0""show\0"; if (*argv) { - smalluint cmd = index_in_substrings(ip_rule_commands, *argv); - if (cmd > 3) - bb_error_msg_and_die(bb_msg_invalid_arg, *argv, applet_name); + int cmd = index_in_substrings(ip_rule_commands, *argv); + if (cmd < 0) + invarg(*argv, applet_name); argv++; if (cmd < 2) return iprule_modify((cmd == 0) ? RTM_NEWRULE : RTM_DELRULE, argv); diff --git a/networking/libiproute/iptunnel.c b/networking/libiproute/iptunnel.c index 2b651b9..b54c3c5 100644 --- a/networking/libiproute/iptunnel.c +++ b/networking/libiproute/iptunnel.c @@ -561,9 +561,9 @@ int FAST_FUNC do_iptunnel(char **argv) enum { ARG_add = 0, ARG_change, ARG_del, ARG_show, ARG_list, ARG_lst }; if (*argv) { - smalluint key = index_in_substrings(keywords, *argv); - if (key > 5) - bb_error_msg_and_die(bb_msg_invalid_arg, *argv, applet_name); + int key = index_in_substrings(keywords, *argv); + if (key < 0) + invarg(*argv, applet_name); argv++; if (key == ARG_add) return do_add(SIOCADDTUNNEL, argv); -- 2.7.4