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authorDenis Vlasenko <vda.linux@googlemail.com>2008-06-08 08:01:12 +0000
committerDenis Vlasenko <vda.linux@googlemail.com>2008-06-08 08:01:12 +0000
commit048897c9712f99555e607c11732ad761e4397c48 (patch)
treeea29283fd590a6379e4caeed7307010cd13d879c
parent52a8d975da9c6b26fc7f6323a78556208cf0cd64 (diff)
downloadbusybox-048897c9712f99555e607c11732ad761e4397c48.tar.gz
ifenslave: small shrink
text data bss dec hex filename 809731 624 7060 817415 c7907 busybox_old 809629 624 7060 817313 c78a1 busybox_unstripped
-rw-r--r--networking/ifenslave.c53
1 files changed, 24 insertions, 29 deletions
diff --git a/networking/ifenslave.c b/networking/ifenslave.c
index 1e983f2ba..fed186967 100644
--- a/networking/ifenslave.c
+++ b/networking/ifenslave.c
@@ -261,9 +261,7 @@ static void change_active(char *master_ifname, char *slave_ifname)
struct ifreq ifr;
if (!(slave.flags.ifr_flags & IFF_SLAVE)) {
- bb_error_msg_and_die(
- "%s is not a slave",
- slave_ifname);
+ bb_error_msg_and_die("%s is not a slave", slave_ifname);
}
strncpy_IFNAMSIZ(ifr.ifr_slave, slave_ifname);
@@ -402,8 +400,7 @@ static int release(char *master_ifname, char *slave_ifname)
int res = 0;
if (!(slave.flags.ifr_flags & IFF_SLAVE)) {
- bb_error_msg("%s is not a slave",
- slave_ifname);
+ bb_error_msg("%s is not a slave", slave_ifname);
return 1;
}
@@ -462,18 +459,19 @@ int ifenslave_main(int argc ATTRIBUTE_UNUSED, char **argv)
};
#if ENABLE_GETOPT_LONG
static const char ifenslave_longopts[] ALIGN1 =
- "change-active\0" No_argument "c"
- "detach\0" No_argument "d"
- "force\0" No_argument "f"
+ "change-active\0" No_argument "c"
+ "detach\0" No_argument "d"
+ "force\0" No_argument "f"
+ /* "all-interfaces\0" No_argument "a" */
;
applet_long_options = ifenslave_longopts;
#endif
INIT_G();
- opt = getopt32(argv, "cdf");
+ opt = getopt32(argv, "cdfa");
argv += optind;
- if (opt & (opt-1)) /* options check */
+ if (opt & (opt-1)) /* Only one option can be given */
bb_show_usage();
master_ifname = *argv++;
@@ -505,25 +503,25 @@ int ifenslave_main(int argc ATTRIBUTE_UNUSED, char **argv)
return EXIT_SUCCESS;
}
- res = get_if_settings(master_ifname, &master);
- if (res) {
+ if (get_if_settings(master_ifname, &master)) {
/* Probably a good reason not to go on */
bb_perror_msg_and_die("%s: can't get settings", master_ifname);
}
- /* check if master is indeed a master;
+ /* Check if master is indeed a master;
* if not then fail any operation
*/
if (!(master.flags.ifr_flags & IFF_MASTER))
bb_error_msg_and_die("%s is not a master", master_ifname);
- /* check if master is up; if not then fail any operation */
+ /* Check if master is up; if not then fail any operation */
if (!(master.flags.ifr_flags & IFF_UP))
bb_error_msg_and_die("%s is not up", master_ifname);
- /* No opts: neither -c[hange] nor -d[etach] -> it's "enslave" then;
- * and -f[orce] is not there too */
- if (!opt) {
+#ifdef WHY_BOTHER
+ /* Neither -c[hange] nor -d[etach] -> it's "enslave" then;
+ * and -f[orce] is not there too. Check that it's ethernet. */
+ if (!(opt & (OPT_d|OPT_c|OPT_f)) {
/* The family '1' is ARPHRD_ETHER for ethernet. */
if (master.hwaddr.ifr_hwaddr.sa_family != 1) {
bb_error_msg_and_die(
@@ -531,10 +529,11 @@ int ifenslave_main(int argc ATTRIBUTE_UNUSED, char **argv)
master_ifname);
}
}
+#endif
/* Accepts only one slave */
if (opt & OPT_c) {
- /* change active slave */
+ /* Change active slave */
if (get_slave_flags(slave_ifname)) {
bb_perror_msg_and_die(
"%s: can't get flags", slave_ifname);
@@ -543,11 +542,11 @@ int ifenslave_main(int argc ATTRIBUTE_UNUSED, char **argv)
return EXIT_SUCCESS;
}
- /* Accept multiple slaves */
+ /* Accepts multiple slaves */
res = 0;
do {
if (opt & OPT_d) {
- /* detach a slave interface from the master */
+ /* Detach a slave interface from the master */
rv = get_slave_flags(slave_ifname);
if (rv) {
/* Can't work with this slave, */
@@ -560,14 +559,12 @@ int ifenslave_main(int argc ATTRIBUTE_UNUSED, char **argv)
}
rv = release(master_ifname, slave_ifname);
if (rv) {
- bb_perror_msg(
- "master %s, slave %s: "
- "can't release",
- master_ifname, slave_ifname);
+ bb_perror_msg("can't release %s from %s",
+ slave_ifname, master_ifname);
res = rv;
}
} else {
- /* attach a slave interface to the master */
+ /* Attach a slave interface to the master */
rv = get_if_settings(slave_ifname, &slave);
if (rv) {
/* Can't work with this slave, */
@@ -580,10 +577,8 @@ int ifenslave_main(int argc ATTRIBUTE_UNUSED, char **argv)
}
rv = enslave(master_ifname, slave_ifname);
if (rv) {
- bb_perror_msg(
- "master %s, slave %s: "
- "can't enslave",
- master_ifname, slave_ifname);
+ bb_perror_msg("can't enslave %s to %s",
+ slave_ifname, master_ifname);
res = rv;
}
}