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Diffstat (limited to 'laptop/slstatuso/components/ip.c')
-rwxr-xr-xlaptop/slstatuso/components/ip.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/laptop/slstatuso/components/ip.c b/laptop/slstatuso/components/ip.c
new file mode 100755
index 0000000..9476549
--- /dev/null
+++ b/laptop/slstatuso/components/ip.c
@@ -0,0 +1,61 @@
+/* See LICENSE file for copyright and license details. */
+#include <ifaddrs.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <string.h>
+#if defined(__OpenBSD__)
+ #include <sys/socket.h>
+ #include <sys/types.h>
+#elif defined(__FreeBSD__)
+ #include <netinet/in.h>
+ #include <sys/socket.h>
+#endif
+
+#include "../slstatus.h"
+#include "../util.h"
+
+static const char *
+ip(const char *interface, unsigned short sa_family)
+{
+ struct ifaddrs *ifaddr, *ifa;
+ int s;
+ char host[NI_MAXHOST];
+
+ if (getifaddrs(&ifaddr) < 0) {
+ warn("getifaddrs:");
+ return NULL;
+ }
+
+ for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
+ if (!ifa->ifa_addr)
+ continue;
+
+ s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in6),
+ host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
+ if (!strcmp(ifa->ifa_name, interface) &&
+ (ifa->ifa_addr->sa_family == sa_family)) {
+ freeifaddrs(ifaddr);
+ if (s != 0) {
+ warn("getnameinfo: %s", gai_strerror(s));
+ return NULL;
+ }
+ return bprintf("%s", host);
+ }
+ }
+
+ freeifaddrs(ifaddr);
+
+ return NULL;
+}
+
+const char *
+ipv4(const char *interface)
+{
+ return ip(interface, AF_INET);
+}
+
+const char *
+ipv6(const char *interface)
+{
+ return ip(interface, AF_INET6);
+}