1 #include <stdio.h> 2 #include <fcntl.h> 3 #include "syscall.h" 4 rename(const char * old,const char * new)5int rename(const char *old, const char *new) 6 { 7 #if defined(SYS_rename) 8 return syscall(SYS_rename, old, new); 9 #elif defined(SYS_renameat) 10 return syscall(SYS_renameat, AT_FDCWD, old, AT_FDCWD, new); 11 #else 12 return syscall(SYS_renameat2, AT_FDCWD, old, AT_FDCWD, new, 0); 13 #endif 14 } 15