/*

* Copyright 2011 The Emscripten Authors. All rights reserved.

* Emscripten is available under two separate licenses, the MIT license and the

* University of Illinois/NCSA Open Source License. Both these licenses can be

* found in the LICENSE file.

*/

#include <stdio.h>

#include <errno.h>

#include <unistd.h>

int main() {

int vals[] = {

_CS_PATH,

_CS_POSIX_V6_WIDTH_RESTRICTED_ENVS,

_CS_GNU_LIBC_VERSION,

_CS_GNU_LIBPTHREAD_VERSION,

_CS_POSIX_V6_ILP32_OFF32_LIBS,

_CS_POSIX_V6_ILP32_OFFBIG_LIBS,

_CS_POSIX_V6_LP64_OFF64_CFLAGS,

_CS_POSIX_V6_LP64_OFF64_LDFLAGS,

_CS_POSIX_V6_LP64_OFF64_LIBS,

_CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS,

_CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS,

_CS_POSIX_V6_LPBIG_OFFBIG_LIBS,

_CS_POSIX_V6_ILP32_OFF32_CFLAGS,

_CS_POSIX_V6_ILP32_OFF32_LDFLAGS,

_CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS,

_CS_POSIX_V6_ILP32_OFFBIG_CFLAGS

};

const char* names[] = {

"_CS_PATH",

"_CS_POSIX_V6_WIDTH_RESTRICTED_ENVS",

"_CS_GNU_LIBC_VERSION",

"_CS_GNU_LIBPTHREAD_VERSION",

"_CS_POSIX_V6_ILP32_OFF32_LIBS",

"_CS_POSIX_V6_ILP32_OFFBIG_LIBS",

"_CS_POSIX_V6_LP64_OFF64_CFLAGS",

"_CS_POSIX_V6_LP64_OFF64_LDFLAGS",

"_CS_POSIX_V6_LP64_OFF64_LIBS",

"_CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS",

"_CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS",

"_CS_POSIX_V6_LPBIG_OFFBIG_LIBS",

"_CS_POSIX_V6_ILP32_OFF32_CFLAGS",

"_CS_POSIX_V6_ILP32_OFF32_LDFLAGS",

"_CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS",

"_CS_POSIX_V6_ILP32_OFFBIG_CFLAGS"

};

char buffer[256];

for (int i = 0; i < sizeof vals / sizeof vals[0]; i++) {

printf("ret: %zi\n", confstr(vals[i], buffer, 256));

printf("%s: %s\n", names[i], buffer);

printf("errno: %d\n\n", errno);

errno = 0;

}

printf("(invalid) ret: %zi\n", confstr(-123, buffer, 256));

printf("errno: %d\n", errno);

return 0;

}