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#define __weak_alias(new, old) \
        extern __typeof(old) new __attribute__((weak, alias(#old)))
#define __dead __attribute__((__noreturn__))
#define __BEGIN_DECLS
#define __END_DECLS

#define b64_ntop __b64_ntop
#define b64_pton __b64_pton

#define NOFILE_MAX NOFILE

#define letoh16 le16toh

#ifndef SA_LEN
#define SA_LEN(X) \
        (((struct sockaddr*)(X))->sa_family == AF_INET ? sizeof(struct sockaddr_in) : \
         ((struct sockaddr*)(X))->sa_family == AF_INET6 ? sizeof(struct sockaddr_in6) : sizeof(struct sockaddr))
#endif

#include <stdio.h>
#include <stdint.h>

char *fgetln(FILE *, size_t *);
size_t strlcpy(char *, const char *, size_t);
size_t strlcat(char *, const char *, size_t);
long long strtonum(const char *, long long, long long, const char **);
__dead void errc(int, int, const char *, ...);
uint32_t arc4random(void);
uint32_t arc4random_uniform(uint32_t);
void arc4random_buf(void *, size_t);
int timingsafe_bcmp(const void *, const void *, size_t);
void *reallocarray(void *, size_t, size_t);