26 #ifndef _EVENT2_UTIL_H_ 27 #define _EVENT2_UTIL_H_ 40 #include <event2/event-config.h> 41 #ifdef _EVENT_HAVE_SYS_TIME_H 44 #ifdef _EVENT_HAVE_STDINT_H 46 #elif defined(_EVENT_HAVE_INTTYPES_H) 49 #ifdef _EVENT_HAVE_SYS_TYPES_H 50 #include <sys/types.h> 52 #ifdef _EVENT_HAVE_STDDEF_H 59 #ifdef _EVENT_HAVE_NETDB_H 60 #if !defined(_GNU_SOURCE) 69 #include <sys/socket.h> 73 #if defined(_EVENT_SIZEOF_VOID__) && !defined(_EVENT_SIZEOF_VOID_P) 74 #define _EVENT_SIZEOF_VOID_P _EVENT_SIZEOF_VOID__ 106 #ifdef _EVENT_HAVE_UINT64_T 107 #define ev_uint64_t uint64_t 108 #define ev_int64_t int64_t 110 #define ev_uint64_t unsigned __int64 111 #define ev_int64_t signed __int64 112 #elif _EVENT_SIZEOF_LONG_LONG == 8 113 #define ev_uint64_t unsigned long long 114 #define ev_int64_t long long 115 #elif _EVENT_SIZEOF_LONG == 8 116 #define ev_uint64_t unsigned long 117 #define ev_int64_t long 118 #elif defined(_EVENT_IN_DOXYGEN) 119 #define ev_uint64_t ... 120 #define ev_int64_t ... 122 #error "No way to define ev_uint64_t" 125 #ifdef _EVENT_HAVE_UINT32_T 126 #define ev_uint32_t uint32_t 127 #define ev_int32_t int32_t 129 #define ev_uint32_t unsigned int 130 #define ev_int32_t signed int 131 #elif _EVENT_SIZEOF_LONG == 4 132 #define ev_uint32_t unsigned long 133 #define ev_int32_t signed long 134 #elif _EVENT_SIZEOF_INT == 4 135 #define ev_uint32_t unsigned int 136 #define ev_int32_t signed int 137 #elif defined(_EVENT_IN_DOXYGEN) 138 #define ev_uint32_t ... 139 #define ev_int32_t ... 141 #error "No way to define ev_uint32_t" 144 #ifdef _EVENT_HAVE_UINT16_T 145 #define ev_uint16_t uint16_t 146 #define ev_int16_t int16_t 148 #define ev_uint16_t unsigned short 149 #define ev_int16_t signed short 150 #elif _EVENT_SIZEOF_INT == 2 151 #define ev_uint16_t unsigned int 152 #define ev_int16_t signed int 153 #elif _EVENT_SIZEOF_SHORT == 2 154 #define ev_uint16_t unsigned short 155 #define ev_int16_t signed short 156 #elif defined(_EVENT_IN_DOXYGEN) 157 #define ev_uint16_t ... 158 #define ev_int16_t ... 160 #error "No way to define ev_uint16_t" 163 #ifdef _EVENT_HAVE_UINT8_T 164 #define ev_uint8_t uint8_t 165 #define ev_int8_t int8_t 166 #elif defined(_EVENT_IN_DOXYGEN) 167 #define ev_uint8_t ... 168 #define ev_int8_t ... 170 #define ev_uint8_t unsigned char 171 #define ev_int8_t signed char 174 #ifdef _EVENT_HAVE_UINTPTR_T 175 #define ev_uintptr_t uintptr_t 176 #define ev_intptr_t intptr_t 177 #elif _EVENT_SIZEOF_VOID_P <= 4 178 #define ev_uintptr_t ev_uint32_t 179 #define ev_intptr_t ev_int32_t 180 #elif _EVENT_SIZEOF_VOID_P <= 8 181 #define ev_uintptr_t ev_uint64_t 182 #define ev_intptr_t ev_int64_t 183 #elif defined(_EVENT_IN_DOXYGEN) 184 #define ev_uintptr_t ... 185 #define ev_intptr_t ... 187 #error "No way to define ev_uintptr_t" 190 #ifdef _EVENT_ssize_t 191 #define ev_ssize_t _EVENT_ssize_t 193 #define ev_ssize_t ssize_t 197 #define ev_off_t ev_int64_t 199 #define ev_off_t off_t 218 #define EV_UINT64_MAX ((((ev_uint64_t)0xffffffffUL) << 32) | 0xffffffffUL) 219 #define EV_INT64_MAX ((((ev_int64_t) 0x7fffffffL) << 32) | 0xffffffffL) 220 #define EV_INT64_MIN ((-EV_INT64_MAX) - 1) 221 #define EV_UINT32_MAX ((ev_uint32_t)0xffffffffUL) 222 #define EV_INT32_MAX ((ev_int32_t) 0x7fffffffL) 223 #define EV_INT32_MIN ((-EV_INT32_MAX) - 1) 224 #define EV_UINT16_MAX ((ev_uint16_t)0xffffUL) 225 #define EV_INT16_MAX ((ev_int16_t) 0x7fffL) 226 #define EV_INT16_MIN ((-EV_INT16_MAX) - 1) 227 #define EV_UINT8_MAX 255 228 #define EV_INT8_MAX 127 229 #define EV_INT8_MIN ((-EV_INT8_MAX) - 1) 237 #if _EVENT_SIZEOF_SIZE_T == 8 238 #define EV_SIZE_MAX EV_UINT64_MAX 239 #define EV_SSIZE_MAX EV_INT64_MAX 240 #elif _EVENT_SIZEOF_SIZE_T == 4 241 #define EV_SIZE_MAX EV_UINT32_MAX 242 #define EV_SSIZE_MAX EV_INT32_MAX 243 #elif defined(_EVENT_IN_DOXYGEN) 244 #define EV_SIZE_MAX ... 245 #define EV_SSIZE_MAX ... 247 #error "No way to define SIZE_MAX" 250 #define EV_SSIZE_MIN ((-EV_SSIZE_MAX) - 1) 254 #define ev_socklen_t int 255 #elif defined(_EVENT_socklen_t) 256 #define ev_socklen_t _EVENT_socklen_t 258 #define ev_socklen_t socklen_t 261 #ifdef _EVENT_HAVE_STRUCT_SOCKADDR_STORAGE___SS_FAMILY 262 #if !defined(_EVENT_HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY) \ 263 && !defined(ss_family) 264 #define ss_family __ss_family 272 #define evutil_socket_t intptr_t 274 #define evutil_socket_t int 324 #define EVUTIL_CLOSESOCKET(s) evutil_closesocket(s) 329 #define EVUTIL_SOCKET_ERROR() WSAGetLastError() 331 #define EVUTIL_SET_SOCKET_ERROR(errcode) \ 332 do { WSASetLastError(errcode); } while (0) 337 #elif defined(_EVENT_IN_DOXYGEN) 353 #define EVUTIL_SOCKET_ERROR() ... 355 #define EVUTIL_SET_SOCKET_ERROR(errcode) ... 357 #define evutil_socket_geterror(sock) ... 359 #define evutil_socket_error_to_string(errcode) ... 362 #define EVUTIL_SOCKET_ERROR() (errno) 363 #define EVUTIL_SET_SOCKET_ERROR(errcode) \ 364 do { errno = (errcode); } while (0) 365 #define evutil_socket_geterror(sock) (errno) 366 #define evutil_socket_error_to_string(errcode) (strerror(errcode)) 378 #ifdef _EVENT_HAVE_TIMERADD 379 #define evutil_timeradd(tvp, uvp, vvp) timeradd((tvp), (uvp), (vvp)) 380 #define evutil_timersub(tvp, uvp, vvp) timersub((tvp), (uvp), (vvp)) 382 #define evutil_timeradd(tvp, uvp, vvp) \ 384 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \ 385 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \ 386 if ((vvp)->tv_usec >= 1000000) { \ 388 (vvp)->tv_usec -= 1000000; \ 391 #define evutil_timersub(tvp, uvp, vvp) \ 393 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \ 394 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \ 395 if ((vvp)->tv_usec < 0) { \ 397 (vvp)->tv_usec += 1000000; \ 402 #ifdef _EVENT_HAVE_TIMERCLEAR 403 #define evutil_timerclear(tvp) timerclear(tvp) 405 #define evutil_timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0 411 #define evutil_timercmp(tvp, uvp, cmp) \ 412 (((tvp)->tv_sec == (uvp)->tv_sec) ? \ 413 ((tvp)->tv_usec cmp (uvp)->tv_usec) : \ 414 ((tvp)->tv_sec cmp (uvp)->tv_sec)) 416 #ifdef _EVENT_HAVE_TIMERISSET 417 #define evutil_timerisset(tvp) timerisset(tvp) 419 #define evutil_timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) 424 #define evutil_offsetof(type, field) offsetof(type, field) 426 #define evutil_offsetof(type, field) ((off_t)(&((type *)0)->field)) 431 ev_int64_t
evutil_strtoll(
const char *s,
char **endptr,
int base);
434 #ifdef _EVENT_HAVE_GETTIMEOFDAY 435 #define evutil_gettimeofday(tv, tz) gettimeofday((tv), (tz)) 438 int evutil_gettimeofday(
struct timeval *tv,
struct timezone *tz);
446 __attribute__((format(printf, 3, 4)))
452 int evutil_vsnprintf(
char *buf,
size_t buflen,
const char *format, va_list ap)
454 __attribute__((format(printf, 3, 0)))
459 const char *
evutil_inet_ntop(
int af,
const void *src,
char *dst,
size_t len);
505 #ifdef _EVENT_HAVE_STRUCT_ADDRINFO 506 #define evutil_addrinfo addrinfo 520 struct sockaddr *ai_addr;
531 #ifdef EAI_ADDRFAMILY 532 #define EVUTIL_EAI_ADDRFAMILY EAI_ADDRFAMILY 534 #define EVUTIL_EAI_ADDRFAMILY -901 537 #define EVUTIL_EAI_AGAIN EAI_AGAIN 539 #define EVUTIL_EAI_AGAIN -902 542 #define EVUTIL_EAI_BADFLAGS EAI_BADFLAGS 544 #define EVUTIL_EAI_BADFLAGS -903 547 #define EVUTIL_EAI_FAIL EAI_FAIL 549 #define EVUTIL_EAI_FAIL -904 552 #define EVUTIL_EAI_FAMILY EAI_FAMILY 554 #define EVUTIL_EAI_FAMILY -905 557 #define EVUTIL_EAI_MEMORY EAI_MEMORY 559 #define EVUTIL_EAI_MEMORY -906 564 #if defined(EAI_NODATA) && (!defined(EAI_NONAME) || EAI_NODATA != EAI_NONAME) 565 #define EVUTIL_EAI_NODATA EAI_NODATA 567 #define EVUTIL_EAI_NODATA -907 570 #define EVUTIL_EAI_NONAME EAI_NONAME 572 #define EVUTIL_EAI_NONAME -908 575 #define EVUTIL_EAI_SERVICE EAI_SERVICE 577 #define EVUTIL_EAI_SERVICE -909 580 #define EVUTIL_EAI_SOCKTYPE EAI_SOCKTYPE 582 #define EVUTIL_EAI_SOCKTYPE -910 585 #define EVUTIL_EAI_SYSTEM EAI_SYSTEM 587 #define EVUTIL_EAI_SYSTEM -911 590 #define EVUTIL_EAI_CANCEL -90001 593 #define EVUTIL_AI_PASSIVE AI_PASSIVE 595 #define EVUTIL_AI_PASSIVE 0x1000 598 #define EVUTIL_AI_CANONNAME AI_CANONNAME 600 #define EVUTIL_AI_CANONNAME 0x2000 602 #ifdef AI_NUMERICHOST 603 #define EVUTIL_AI_NUMERICHOST AI_NUMERICHOST 605 #define EVUTIL_AI_NUMERICHOST 0x4000 607 #ifdef AI_NUMERICSERV 608 #define EVUTIL_AI_NUMERICSERV AI_NUMERICSERV 610 #define EVUTIL_AI_NUMERICSERV 0x8000 613 #define EVUTIL_AI_V4MAPPED AI_V4MAPPED 615 #define EVUTIL_AI_V4MAPPED 0x10000 618 #define EVUTIL_AI_ALL AI_ALL 620 #define EVUTIL_AI_ALL 0x20000 623 #define EVUTIL_AI_ADDRCONFIG AI_ADDRCONFIG 625 #define EVUTIL_AI_ADDRCONFIG 0x40000 647 const char *evutil_gai_strerror(
int err);
#define evutil_socket_error_to_string(errcode)
Convert a socket error to a string.
Definition: util.h:359
int evutil_snprintf(char *buf, size_t buflen, const char *format,...)
Replacement for snprintf to get consistent behavior on platforms for which the return value of snprin...
int evutil_make_listen_socket_reuseable(evutil_socket_t sock)
Do platform-specific operations to make a listener socket reusable.
int evutil_closesocket(evutil_socket_t sock)
Do the platform-specific call needed to close a socket returned from socket() or accept().
#define evutil_socket_geterror(sock)
Return the most recent socket error to occur on sock.
Definition: util.h:357
int evutil_make_socket_nonblocking(evutil_socket_t sock)
Do platform-specific operations as needed to make a socket nonblocking.
int evutil_secure_rng_set_urandom_device_file(char *fname)
Set a filename to use in place of /dev/urandom for seeding the secure PRNG.
void evutil_secure_rng_get_bytes(void *buf, size_t n)
Generate n bytes of secure pseudorandom data, and store them in buf.
const char * evutil_inet_ntop(int af, const void *src, char *dst, size_t len)
Replacement for inet_ntop for platforms which lack it.
int evutil_vsnprintf(char *buf, size_t buflen, const char *format, va_list ap)
Replacement for vsnprintf to get consistent behavior on platforms for which the return value of snpri...
#define evutil_socket_t
A type wide enough to hold the output of "socket()" or "accept()".
Definition: util.h:274
ev_int64_t evutil_strtoll(const char *s, char **endptr, int base)
Parse a 64-bit value from a string.
void evutil_secure_rng_add_bytes(const char *dat, size_t datlen)
Seed the random number generator with extra random bytes.
void evutil_freeaddrinfo(struct evutil_addrinfo *ai)
Release storage allocated by evutil_getaddrinfo or evdns_getaddrinfo.
int evutil_make_socket_closeonexec(evutil_socket_t sock)
Do platform-specific operations as needed to close a socket upon a successful execution of one of the...
int evutil_secure_rng_init(void)
Seed the secure random number generator if needed, and return 0 on success or -1 on failure...
int evutil_inet_pton(int af, const char *src, void *dst)
Replacement for inet_pton for platforms which lack it.
A definition of struct addrinfo for systems that lack it.
Definition: util.h:513
int evutil_ascii_strcasecmp(const char *str1, const char *str2)
As strcasecmp, but always compares the characters in locale-independent ASCII.
int evutil_socketpair(int d, int type, int protocol, evutil_socket_t sv[2])
Create two new sockets that are connected to each other.
int evutil_parse_sockaddr_port(const char *str, struct sockaddr *out, int *outlen)
Parse an IPv4 or IPv6 address, with optional port, from a string.
int evutil_sockaddr_cmp(const struct sockaddr *sa1, const struct sockaddr *sa2, int include_port)
Compare two sockaddrs; return 0 if they are equal, or less than 0 if sa1 preceeds sa2...
int evutil_ascii_strncasecmp(const char *str1, const char *str2, size_t n)
As strncasecmp, but always compares the characters in locale-independent ASCII.
int evutil_getaddrinfo(const char *nodename, const char *servname, const struct evutil_addrinfo *hints_in, struct evutil_addrinfo **res)
This function clones getaddrinfo for systems that don't have it.