scala-native.net.if.c Maven / Gradle / Ivy
#if defined(SCALANATIVE_COMPILE_ALWAYS) || defined(__SCALANATIVE_POSIX_NET_IF)
#ifdef _WIN32
#include
#pragma comment(lib, "ws2_32.lib")
#include
#include
#pragma comment(lib, "iphlpapi.lib")
#else
#include
#include
struct scalanative_if_nameindex {
unsigned int if_index;
char *if_name;
};
#if !(defined __STDC_VERSION__) || (__STDC_VERSION__ < 201112L)
#ifndef SCALANATIVE_SUPPRESS_STRUCT_CHECK_WARNING
#warning "Size and order of C structures are not checked when -std < c11."
#endif
#else
// struct if_nameindex
_Static_assert(sizeof(struct scalanative_if_nameindex) <=
sizeof(struct if_nameindex),
"Unexpected size: struct if_nameindex");
_Static_assert(offsetof(struct scalanative_if_nameindex, if_index) ==
offsetof(struct if_nameindex, if_index),
"Unexpected offset: scalanative_if_nameindex.if_index");
_Static_assert(offsetof(struct scalanative_if_nameindex, if_name) ==
offsetof(struct if_nameindex, if_name),
"Unexpected offset: scalanative_if_nameindex.if_name");
#endif // __STDC_VERSION__
#endif
// Symbolic constants
/* POSIX 2018 says:
* The header shall define the following symbolic constant for
* the length of a buffer containing an interface name (including the
* terminating NULL character)
*
* Windows appears to define the constant without space for that NUL.
* Be ultra-conservative and allocate one extra location. It is more
* economical to do that than to spend time debugging strange Windows-only
* buffer overrun defects.
*/
int scalanative_if_namesize() { return IF_NAMESIZE + 1; }
#endif