glibc ioctl.h has it too.
@@ -153,6 +153,7 @@ struct winsize {
#define SIOCSIFMEM 0x8920
#define SIOCGIFMTU 0x8921
#define SIOCSIFMTU 0x8922
+#define SIOCSIFNAME 0x8923
#define SIOCSIFHWADDR 0x8924
#define SIOCGIFENCAP 0x8925
#define SIOCSIFENCAP 0x8926
@@ -166,6 +166,7 @@ struct winsize {
@@ -179,6 +179,7 @@ struct winsize {
@@ -182,6 +182,7 @@ struct winsize {
@@ -167,6 +167,7 @@ struct winsize {