_error
int BIO_sock_non_fatal_error(int _error);
int BIO_dgram_non_fatal_error(int _error);
int BIO_fd_non_fatal_error(int _error);
const char *elf_errmsg(int _error);
struct tls_error *_error, const char *_cert_file);
struct tls_error *_error, const uint8_t *_cert, size_t _len);
struct tls_error *_error, const char *_key_file);
struct tls_error *_error, const uint8_t *_key, size_t _len);
struct tls_error *_error, const char *_ocsp_file);
struct tls_error *_error, const uint8_t *_staple, size_t _len);
struct tls_error *_error, X509 **_cert);
goto _error;
goto _error;
goto _error;
goto _error;
goto _error;
_error:
#define ERR(...) do { warn(__VA_ARGS__); goto _error; } while(0)
#define ERRX(...) do { warnx(__VA_ARGS__); goto _error; } while(0)
goto _error;
goto _error;
goto _error;
goto _error;
_error:
goto _error;
goto _error;
goto _error;
goto _error;
goto _error;
_error:
goto _error; \
goto _error; \
static void _error(const char *);
_error((buf[0]) ? buf : NULL);