Get rid of err.h as it is not portable

[slstatus.git] / components / ip.c

diff --git a/components/ip.c b/components/ip.c
index f98b2ed..c46ec9e 100644 (file)
--- a/components/ip.c
+++ b/components/ip.c
@@ -1,5 +1,5 @@
 /* See LICENSE file for copyright and license details. */
-#include <err.h>
+#if defined(__linux__)
 #include <ifaddrs.h>
 #include <netdb.h>
 #include <stdio.h>
@@ -15,7 +15,7 @@ ipv4(const char *iface)
        char host[NI_MAXHOST];
 
        if (getifaddrs(&ifaddr) == -1) {
-               warn("Failed to get IPv4 address for interface %s", iface);
+               fprintf(stderr, "Failed to get IPv4 address for interface %s", iface);
                return NULL;
        }
 
@@ -26,7 +26,7 @@ ipv4(const char *iface)
                s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in), host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
                if ((strcmp(ifa->ifa_name, iface) == 0) && (ifa->ifa_addr->sa_family == AF_INET)) {
                        if (s != 0) {
-                               warnx("Failed to get IPv4 address for interface %s", iface);
+                               fprintf(stderr, "Failed to get IPv4 address for interface %s", iface);
                                return NULL;
                        }
                        return bprintf("%s", host);
@@ -46,7 +46,7 @@ ipv6(const char *iface)
        char host[NI_MAXHOST];
 
        if (getifaddrs(&ifaddr) == -1) {
-               warn("Failed to get IPv6 address for interface %s", iface);
+               fprintf(stderr, "Failed to get IPv6 address for interface %s", iface);
                return NULL;
        }
 
@@ -57,7 +57,7 @@ ipv6(const char *iface)
                s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in6), host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
                if ((strcmp(ifa->ifa_name, iface) == 0) && (ifa->ifa_addr->sa_family == AF_INET6)) {
                        if (s != 0) {
-                               warnx("Failed to get IPv6 address for interface %s", iface);
+                               fprintf(stderr, "Failed to get IPv6 address for interface %s", iface);
                                return NULL;
                        }
                        return bprintf("%s", host);
@@ -68,3 +68,4 @@ ipv6(const char *iface)
 
        return NULL;
 }
+#endif