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#include <unistd.h>
#include <stdio.h>
#include <errno.h>
size_t confstr(int name, char *buf, size_t len)
{
const char *s = "";
if (!name) {
#ifndef __EMSCRIPTEN__
s = "/bin:/usr/bin";
#else
// TODO(sbc): Can we just remove these custom values.
// We have tests that check for them but its not clear
// anything else does.
s = "/";
} else if (name == _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS) {
s = "POSIX_V6_ILP32_OFF32\nPOSIX_V6_ILP32_OFFBIG";
} else if (name == _CS_GNU_LIBPTHREAD_VERSION) {
s = "";
} else if (name == _CS_GNU_LIBC_VERSION) {
s = "glibc 2.14";
} else if (name == _CS_POSIX_V6_ILP32_OFF32_CFLAGS ||
name == _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS ||
name == _CS_POSIX_V6_ILP32_OFF32_LDFLAGS) {
s = "-m32";
} else if (name == _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS) {
s = "-m32 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64";
#endif
} else if ((name&~4U)!=1 && name-_CS_POSIX_V6_ILP32_OFF32_CFLAGS>35U) {
errno = EINVAL;
return 0;
}
// snprintf is overkill but avoid wasting code size to implement
// this completely useless function and its truncation semantics
return snprintf(buf, len, "%s", s) + 1;
}
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