support the special interface name _first_ for ethernet/wireless

Since we have deterministic device names in Linux, these strings are a
much better default in the i3status config than "eth0" and "wlan0" (what
we used before).

1 files changed, 7 insertions, 0 deletions

diff --git a/include/i3status.h b/include/i3status.h
index d816f0a..f8f0784 100644
--- a/include/i3status.h
+++ b/include/i3status.h
@@ -170,6 +170,13 @@ char *auto_detect_format();
 /* src/print_time.c */
 void set_timezone(const char *tz);
 
+/* src/first_network_device.c */
+typedef enum {
+	NET_TYPE_WIRELESS = 0,
+	NET_TYPE_ETHERNET = 1
+} net_type_t;
+const char *first_eth_interface(const net_type_t type);
+
 void print_ipv6_info(yajl_gen json_gen, char *buffer, const char *format_up, const char *format_down);
 void print_disk_info(yajl_gen json_gen, char *buffer, const char *path, const char *format, const char *prefix_type, const char *threshold_type, const double low_threshold);
 void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char *path, const char *format, const char *format_down, const char *status_chr, const char *status_bat, const char *status_full, int low_threshold, char *threshold_type, bool last_full_capacity, bool integer_battery_capacity, bool hide_seconds);