1 #ifndef SEEK_H 2 #define SEEK_H 3 4 typedef unsigned long seek_pos; 5 6 extern seek_pos seek_cur(); 7 8 extern int seek_set(); 9 extern int seek_end(); 10 11 extern int seek_trunc(); 12 13 #define seek_begin(fd) (seek_set((fd),(seek_pos) 0)) 14 15 #endif 16