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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2016-02-22 23:23:56 -0500
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2016-02-23 08:50:52 -0500
commit4c3160f1502e5ebad8cb73ae70cdeead2e534997 (patch)
treeb6481fd633c7521d5ea0d4c0969a165356a26740
parent6b0132e4e785de7b339da071eb1506adf2362edd (diff)
networkctl: only print lldp legend for capabilities that were actually seen
-rw-r--r--src/network/networkctl.c47
1 files changed, 40 insertions, 7 deletions
diff --git a/src/network/networkctl.c b/src/network/networkctl.c
index d1aec9a7dc..07ac15f478 100644
--- a/src/network/networkctl.c
+++ b/src/network/networkctl.c
@@ -901,10 +901,43 @@ static char *lldp_capabilities_to_string(uint16_t x) {
return ret;
}
+static void lldp_capabilities_legend(uint16_t x) {
+ unsigned w, i, cols = columns();
+ static const char const* table[] = {
+ "o - Other",
+ "p - Repeater",
+ "b - Bridge",
+ "w - WLAN Access Point",
+ "r - Router",
+ "t - Telephone",
+ "d - DOCSIS cable device",
+ "a - Station",
+ "c - Customer VLAN",
+ "s - Service VLAN",
+ "m - Two-port MAC Relay (TPMR)",
+ };
+
+ if (x == 0)
+ return;
+
+ printf("\nCapability Flags:\n");
+ for (w = 0, i = 0; i < ELEMENTSOF(table); i++)
+ if (x & (1U << i) || arg_all) {
+ bool newline;
+
+ newline = w + strlen(table[i]) + (w == 0 ? 0 : 2) > cols;
+ if (newline)
+ w = 0;
+ w += printf("%s%s%s", newline ? "\n" : "", w == 0 ? "" : "; ", table[i]);
+ }
+ puts("");
+}
+
static int link_lldp_status(int argc, char *argv[], void *userdata) {
_cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
_cleanup_free_ LinkInfo *links = NULL;
int i, r, c, m = 0;
+ uint16_t all = 0;
r = sd_netlink_open(&rtnl);
if (r < 0)
@@ -982,8 +1015,10 @@ static int link_lldp_status(int argc, char *argv[], void *userdata) {
port_description = pdesc;
}
- if (sd_lldp_neighbor_get_enabled_capabilities(n, &cc) >= 0)
+ if (sd_lldp_neighbor_get_enabled_capabilities(n, &cc) >= 0) {
capabilities = lldp_capabilities_to_string(cc);
+ all |= cc;
+ }
printf("%-16s %-17s %-16s %-11s %-17s %-16s\n",
links[i].name,
@@ -997,12 +1032,10 @@ static int link_lldp_status(int argc, char *argv[], void *userdata) {
}
}
- if (arg_legend)
- printf("\nCapability Flags:\n"
- "o - Other; p - Repeater; b - Bridge; w - WLAN Access Point; r - Router;\n"
- "t - Telephone; d - DOCSIS cable device; a - Station; c - Customer VLAN;\n"
- "s - Service VLAN, m - Two-port MAC Relay (TPMR)\n\n"
- "%i neighbors listed.\n", m);
+ if (arg_legend) {
+ lldp_capabilities_legend(all);
+ printf("\n%i neighbors listed.\n", m);
+ }
return 0;
}