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scala-native.netdb.c Maven / Gradle / Ivy
#if defined(SCALANATIVE_COMPILE_ALWAYS) || defined(__SCALANATIVE_POSIX_NETDB)
#ifdef _WIN32
#include
#include // socklen_t
// #include
#else // not _WIN32
/* FreeBSD wants AF_INET, which is in
*
* Windows can not find the <> form, and suggests the "" form.
*
* On linux, macOS, etc. This include should provide AF_INET if it has
* not been previously defined.
*/
#include
#include
#endif
#include
struct scalanative_addrinfo {
int ai_flags; /* Input flags. */
int ai_family; /* Protocol family for socket. */
int ai_socktype; /* Socket type. */
int ai_protocol; /* Protocol for socket. */
socklen_t ai_addrlen; /* Length of socket address. */
void *ai_addr; /* Socket address for socket. */
char *ai_canonname; /* Canonical name for service location. */
void *ai_next; /* Pointer to next in list. */
};
_Static_assert(sizeof(struct scalanative_addrinfo) == sizeof(struct addrinfo),
"Unexpected size: os addrinfo");
_Static_assert(offsetof(struct scalanative_addrinfo, ai_flags) ==
offsetof(struct addrinfo, ai_flags),
"Unexpected offset: scalanative_addrinfo.ai_flags");
_Static_assert(offsetof(struct scalanative_addrinfo, ai_family) ==
offsetof(struct addrinfo, ai_family),
"Unexpected offset: scalanative_addrinfo.ai_family");
_Static_assert(offsetof(struct scalanative_addrinfo, ai_socktype) ==
offsetof(struct addrinfo, ai_socktype),
"Unexpected offset: scalanative_addrinfo.ai_socktype");
_Static_assert(offsetof(struct scalanative_addrinfo, ai_protocol) ==
offsetof(struct addrinfo, ai_protocol),
"Unexpected offset: scalanative_addrinfo.ai_protocol");
_Static_assert(offsetof(struct scalanative_addrinfo, ai_addrlen) ==
offsetof(struct addrinfo, ai_addrlen),
"Unexpected offset: scalanative_addrinfo.ai_addrlen");
#if !(defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) || \
defined(_WIN32))
// Linux, etc.
_Static_assert(offsetof(struct scalanative_addrinfo, ai_addr) ==
offsetof(struct addrinfo, ai_addr),
"Unexpected offset: scalanative_addrinfo.ai_addr");
_Static_assert(offsetof(struct scalanative_addrinfo, ai_canonname) ==
offsetof(struct addrinfo, ai_canonname),
"Unexpected offset: scalanative_addrinfo.ai_canonname");
#else
_Static_assert(offsetof(struct scalanative_addrinfo, ai_addr) ==
offsetof(struct addrinfo, ai_canonname),
"Unexpected offset: BSD addrinfo ai_addr fixup");
_Static_assert(offsetof(struct scalanative_addrinfo, ai_canonname) ==
offsetof(struct addrinfo, ai_addr),
"Unexpected offset: BSD addrinfo ai_canonname fixup");
#endif // (defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) ||
// defined(_WIN32))
_Static_assert(offsetof(struct scalanative_addrinfo, ai_next) ==
offsetof(struct addrinfo, ai_next),
"Unexpected offset: scalanative_addrinfo.ai_next");
int scalanative_getaddrinfo(char *name, char *service,
struct scalanative_addrinfo *hints,
struct scalanative_addrinfo **res) {
// ai_flags, ai_socktype, and ai_protocol and all else will be zero.
struct addrinfo posixHints = {.ai_flags = AF_UNSPEC};
struct addrinfo *vettedHints =
(hints != NULL) ? (struct addrinfo *)hints : &posixHints;
return getaddrinfo(name, service, vettedHints, (struct addrinfo **)res);
}
// AI_* items are declared in the order of Posix specification
int scalanative_ai_passive() { return AI_PASSIVE; }
int scalanative_ai_canonname() { return AI_CANONNAME; }
int scalanative_ai_numerichost() { return AI_NUMERICHOST; }
int scalanative_ai_numericserv() { return AI_NUMERICSERV; }
int scalanative_ai_v4mapped() {
#ifdef AI_V4MAPPED
return AI_V4MAPPED;
#else
return 0;
#endif
}
int scalanative_ai_all() {
#ifdef AI_ALL
return AI_ALL;
#else
return 0;
#endif
}
int scalanative_ai_addrconfig() { return AI_ADDRCONFIG; }
// NI_* items are declared in the order of Posix specification
int scalanative_ni_nofqdn() { return NI_NOFQDN; }
int scalanative_ni_numerichost() { return NI_NUMERICHOST; }
int scalanative_ni_namereqd() { return NI_NAMEREQD; }
int scalanative_ni_numericserv() { return NI_NUMERICSERV; }
int scalanative_ni_numericscope() {
#if !defined(NI_NUMERICSCOPE)
/* Silently return a no-op flag.
* Do not disturb the tranquility of the vast majority of projects,
* which have absolutely no interest in NI_NUMERICSCOPE, by issuing the
* #warning one might expect.
*
* NI_NUMERICSCOPE is undefined on Linux and possibly Windows.
*/
return 0;
#else
return NI_NUMERICSCOPE;
#endif
}
int scalanative_ni_dgram() { return NI_DGRAM; }
// EAI_* items are declared in the order of Posix specification
#ifndef _WIN32
int scalanative_eai_again() { return EAI_AGAIN; }
int scalanative_eai_badflags() { return EAI_BADFLAGS; }
int scalanative_eai_fail() { return EAI_FAIL; }
int scalanative_eai_family() { return EAI_FAMILY; }
int scalanative_eai_memory() { return EAI_MEMORY; }
int scalanative_eai_noname() { return EAI_NONAME; }
int scalanative_eai_service() { return EAI_SERVICE; }
int scalanative_eai_socktype() { return EAI_SOCKTYPE; }
int scalanative_eai_system() { return EAI_SYSTEM; }
int scalanative_eai_overflow() { return EAI_OVERFLOW; }
#else // _Win32
/* Reference: https://docs.microsoft.com/en-us/windows/win32/api
* /ws2tcpip/nf-ws2tcpip-getaddrinfo
*/
int scalanative_eai_again() { return WSATRY_AGAIN; }
int scalanative_eai_badflags() { return WSAEINVAL; }
int scalanative_eai_fail() { return WSANO_RECOVERY; }
int scalanative_eai_family() { return WSAEAFNOSUPPORT; }
int scalanative_eai_memory() { return WSA_NOT_ENOUGH_MEMORY; }
int scalanative_eai_noname() { return WSAHOST_NOT_FOUND; }
int scalanative_eai_service() { return WSATYPE_NOT_FOUND; }
int scalanative_eai_socktype() { return WSAESOCKTNOSUPPORT; }
// Windows seems not to have an equivalent, use ubiquitous -1
int scalanative_eai_system() { return -1; }
// Windows seems not to have an equivalent, use ubiquitous -1
int scalanative_eai_overflow() { return -1; }
#endif // _Win32
#endif
