summaryrefslogtreecommitdiff
path: root/networking/libiproute/iproute.c
diff options
context:
space:
mode:
authorBernhard Reutner-Fischer2007-04-12 11:34:39 +0000
committerBernhard Reutner-Fischer2007-04-12 11:34:39 +0000
commitb290889f0265e1278e8a868aa82a65bcc9099b0f (patch)
tree2fc8dcc3b7f525f61817417e32c2827b57e17b8a /networking/libiproute/iproute.c
parent51742f4bb0c57a4d5063ece9437a2f34a42e52c8 (diff)
downloadbusybox-b290889f0265e1278e8a868aa82a65bcc9099b0f.zip
busybox-b290889f0265e1278e8a868aa82a65bcc9099b0f.tar.gz
- add xsendto and use where appropriate; shrink iplink; sanitize libiproute a bit.
-916 byte
Diffstat (limited to 'networking/libiproute/iproute.c')
-rw-r--r--networking/libiproute/iproute.c74
1 files changed, 18 insertions, 56 deletions
diff --git a/networking/libiproute/iproute.c b/networking/libiproute/iproute.c
index 23d4163..e7ad7d9 100644
--- a/networking/libiproute/iproute.c
+++ b/networking/libiproute/iproute.c
@@ -102,10 +102,8 @@ static int print_route(struct sockaddr_nl *who ATTRIBUTE_UNUSED,
if (filter.flushb && n->nlmsg_type != RTM_NEWROUTE)
return 0;
len -= NLMSG_LENGTH(sizeof(*r));
- if (len < 0) {
- bb_error_msg("wrong nlmsg len %d", len);
- return -1;
- }
+ if (len < 0)
+ bb_error_msg_and_die("wrong nlmsg len %d", len);
if (r->rtm_family == AF_INET6)
host_len = 128;
@@ -186,7 +184,7 @@ static int print_route(struct sockaddr_nl *who ATTRIBUTE_UNUSED,
struct nlmsghdr *fn;
if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
if (flush_update())
- return -1;
+ bb_error_msg_and_die("flush");
}
fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp));
memcpy(fn, n, n->nlmsg_len);
@@ -410,9 +408,7 @@ static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
argc--; argv++;
}
- if (rtnl_open(&rth, 0) < 0) {
- return 1;
- }
+ xrtnl_open(&rth);
if (d) {
int idx;
@@ -420,10 +416,7 @@ static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
ll_init_map(&rth);
if (d) {
- idx = ll_name_to_index(d);
- if (idx == 0) {
- bb_error_msg_and_die("cannot find device \"%s\"", d);
- }
+ idx = xll_name_to_index(d);
addattr32(&req.n, sizeof(req), RTA_OIF, idx);
}
}
@@ -478,7 +471,7 @@ static int rtnl_rtcache_request(struct rtnl_handle *rth, int family)
req.rtm.rtm_family = family;
req.rtm.rtm_flags |= RTM_F_CLONED;
- return sendto(rth->fd, (void*)&req, sizeof(req), 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
+ return xsendto(rth->fd, (void*)&req, sizeof(req), (struct sockaddr*)&nladdr, sizeof(nladdr));
}
static void iproute_flush_cache(void)
@@ -592,9 +585,7 @@ static int iproute_list_or_flush(int argc, char **argv, int flush)
do_ipv6 = AF_INET;
}
- if (rtnl_open(&rth, 0) < 0) {
- return 1;
- }
+ xrtnl_open(&rth);
ll_init_map(&rth);
@@ -602,18 +593,12 @@ static int iproute_list_or_flush(int argc, char **argv, int flush)
int idx;
if (id) {
- idx = ll_name_to_index(id);
- if (idx == 0) {
- bb_error_msg_and_die("cannot find device \"%s\"", id);
- }
+ idx = xll_name_to_index(id);
filter.iif = idx;
filter.iifmask = -1;
}
if (od) {
- idx = ll_name_to_index(od);
- if (idx == 0) {
- bb_error_msg("cannot find device \"%s\"", od);
- }
+ idx = xll_name_to_index(od);
filter.oif = idx;
filter.oifmask = -1;
}
@@ -635,13 +620,9 @@ static int iproute_list_or_flush(int argc, char **argv, int flush)
filter.rth = &rth;
for (;;) {
- if (rtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE) < 0) {
- bb_perror_msg_and_die("cannot send dump request");
- }
+ xrtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE);
filter.flushed = 0;
- if (rtnl_dump_filter(&rth, print_route, stdout, NULL, NULL) < 0) {
- bb_error_msg_and_die("flush terminated");
- }
+ xrtnl_dump_filter(&rth, print_route, stdout);
if (filter.flushed == 0) {
return 0;
}
@@ -651,18 +632,13 @@ static int iproute_list_or_flush(int argc, char **argv, int flush)
}
if (filter.tb != -1) {
- if (rtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE) < 0) {
- bb_perror_msg_and_die("cannot send dump request");
- }
+ xrtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE);
} else {
if (rtnl_rtcache_request(&rth, do_ipv6) < 0) {
bb_perror_msg_and_die("cannot send dump request");
}
}
-
- if (rtnl_dump_filter(&rth, print_route, stdout, NULL, NULL) < 0) {
- bb_error_msg_and_die("dump terminated");
- }
+ xrtnl_dump_filter(&rth, print_route, stdout);
return 0;
}
@@ -755,8 +731,7 @@ static int iproute_get(int argc, char **argv)
bb_error_msg_and_die("need at least destination address");
}
- if (rtnl_open(&rth, 0) < 0)
- return 1;
+ xrtnl_open(&rth);
ll_init_map(&rth);
@@ -764,17 +739,11 @@ static int iproute_get(int argc, char **argv)
int idx;
if (idev) {
- idx = ll_name_to_index(idev);
- if (idx == 0) {
- bb_error_msg_and_die("cannot find device \"%s\"", idev);
- }
+ idx = xll_name_to_index(idev);
addattr32(&req.n, sizeof(req), RTA_IIF, idx);
}
if (odev) {
- idx = ll_name_to_index(odev);
- if (idx == 0) {
- bb_error_msg_and_die("cannot find device \"%s\"", odev);
- }
+ idx = xll_name_to_index(odev);
addattr32(&req.n, sizeof(req), RTA_OIF, idx);
}
}
@@ -792,9 +761,7 @@ static int iproute_get(int argc, char **argv)
int len = req.n.nlmsg_len;
struct rtattr * tb[RTA_MAX+1];
- if (print_route(NULL, &req.n, (void*)stdout) < 0) {
- bb_error_msg_and_die("an error :-)");
- }
+ print_route(NULL, &req.n, (void*)stdout);
if (req.n.nlmsg_type != RTM_NEWROUTE) {
bb_error_msg_and_die("not a route?");
@@ -829,12 +796,7 @@ static int iproute_get(int argc, char **argv)
return 2;
}
}
-
- if (print_route(NULL, &req.n, (void*)stdout) < 0) {
-// how is this useful?
- bb_error_msg_and_die("an error :-)");
- }
-
+ print_route(NULL, &req.n, (void*)stdout);
return 0;
}