Add sethostname(2).
Not very useful, but helps building stuff like toybox out of the box.
Change-Id: I110e39030452bd093a84278e019c5752d293718d
diff --git a/libc/include/unistd.h b/libc/include/unistd.h
index deac92b..dca9b3d 100644
--- a/libc/include/unistd.h
+++ b/libc/include/unistd.h
@@ -183,7 +183,8 @@
extern unsigned int sleep(unsigned int);
extern int usleep(useconds_t);
-extern int gethostname(char *, size_t);
+int gethostname(char*, size_t);
+int sethostname(const char*, size_t);
extern void *__brk(void *);
extern int brk(void *);