xioctl and friends by Tito <farmatito@tiscali.it>
function old new delta
do_iptunnel 203 977 +774
process_dev 5328 5494 +166
ioctl_or_perror - 54 +54
ioctl_or_perror_and_die - 51 +51
ioctl_alt_func - 49 +49
bb_ioctl_or_warn - 47 +47
do_add_ioctl 102 145 +43
bb_xioctl - 39 +39
print_value_on_off - 31 +31
get_lcm 105 123 +18
arp_main 2155 2167 +12
..................
zcip_main 1576 1566 -10
setlogcons_main 92 82 -10
dumpkmap_main 263 253 -10
do_get_ioctl 85 75 -10
setkeycodes_main 165 154 -11
write_table 244 232 -12
vconfig_main 318 306 -12
do_del_ioctl 93 81 -12
set_address 75 62 -13
maybe_set_utc 30 16 -14
loadfont_main 495 479 -16
slattach_main 712 695 -17
do_loadfont 191 174 -17
do_iplink 1155 1136 -19
getty_main 2583 2562 -21
fbset_main 2058 2035 -23
do_time 588 565 -23
xioctl 25 - -25
read_rtc 186 160 -26
parse_conf 1299 1270 -29
udhcp_read_interface 269 239 -30
bb_ioctl 45 - -45
bb_ioctl_alt 70 - -70
bb_ioctl_on_off 78 - -78
.rodata 129370 129018 -352
do_show 799 - -799
------------------------------------------------------------------------------
(add/remove: 6/5 grow/shrink: 13/49 up/down: 1316/-1864) Total: -548 bytes
text data bss dec hex filename
675352 2740 13968 692060 a8f5c busybox_old
674804 2740 13968 691512 a8d38 busybox_unstripped
diff --git a/networking/udhcp/socket.c b/networking/udhcp/socket.c
index be5985f..21a0585 100644
--- a/networking/udhcp/socket.c
+++ b/networking/udhcp/socket.c
@@ -53,9 +53,9 @@
ifr.ifr_addr.sa_family = AF_INET;
strncpy(ifr.ifr_name, interface, sizeof(ifr.ifr_name));
if (addr) {
- if (ioctl(fd, SIOCGIFADDR, &ifr) != 0) {
- bb_perror_msg("SIOCGIFADDR failed (is interface %s "
- "up and configured?)", interface);
+ if (ioctl_or_perror(fd, SIOCGIFADDR, &ifr,
+ "is interface %s up and configured?", interface)
+ ) {
close(fd);
return -1;
}
@@ -65,8 +65,7 @@
}
if (ifindex) {
- if (ioctl(fd, SIOCGIFINDEX, &ifr) != 0) {
- bb_perror_msg("SIOCGIFINDEX failed");
+ if (ioctl_or_warn(fd, SIOCGIFINDEX, &ifr) != 0) {
close(fd);
return -1;
}
@@ -75,8 +74,7 @@
}
if (arp) {
- if (ioctl(fd, SIOCGIFHWADDR, &ifr) != 0) {
- bb_perror_msg("SIOCGIFHWADDR failed");
+ if (ioctl_or_warn(fd, SIOCGIFHWADDR, &ifr) != 0) {
close(fd);
return -1;
}