/** \file fd.h exported symbols from fd.c */
int xrename(const char *oldpath, const char *newpath);
int write_all(int fd, const char *buf, size_t len);
__printf_2_3 int write_va_buffer(int fd, const char *fmt, ...);
/** \file fd.h exported symbols from fd.c */
int xrename(const char *oldpath, const char *newpath);
int write_all(int fd, const char *buf, size_t len);
__printf_2_3 int write_va_buffer(int fd, const char *fmt, ...);