ref: b5a43e50b4310ca27ab105e74161c7fe1819ac2f
dir: /sys/src/libc/amd64/_seek.c/
#include <u.h> #include <libc.h> extern int _seek(vlong*, int, vlong, int); vlong seek(int fd, vlong o, int p) { vlong l; if(_seek(&l, fd, o, p) < 0) l = -1LL; return l; }