int make_null_stdio(void);
int make_console_stdio(void);
+int dev_urandom(void *p, size_t n);
void random_bytes(void *p, size_t n);
static inline uint64_t random_u64(void) {
int getpeercred(int fd, struct ucred *ucred);
int getpeersec(int fd, char **ret);
+
+int writev_safe(int fd, const struct iovec *w, int j);
+
+int mkostemp_safe(char *pattern, int flags);
+int open_tmpfile(const char *path, int flags);