Peter Limkilde Svendsen
61 lines
1.6 KiB
Rust
61 lines
1.6 KiB
Rust
use core::convert::TryInto;
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use crate::{
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header::errno,
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platform::{self, types::*, Pal, Sys},
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};
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// POSIX.1 {
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pub const _SC_ARG_MAX: c_int = 0;
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pub const _SC_CHILD_MAX: c_int = 1;
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pub const _SC_CLK_TCK: c_int = 2;
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pub const _SC_NGROUPS_MAX: c_int = 3;
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pub const _SC_OPEN_MAX: c_int = 4;
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pub const _SC_STREAM_MAX: c_int = 5;
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pub const _SC_TZNAME_MAX: c_int = 6;
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// ...
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pub const _SC_VERSION: c_int = 29;
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pub const _SC_PAGESIZE: c_int = 30;
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pub const _SC_PAGE_SIZE: c_int = 30;
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// ...
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pub const _SC_RE_DUP_MAX: c_int = 44;
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// ...
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pub const _SC_GETPW_R_SIZE_MAX: c_int = 70;
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pub const _SC_LOGIN_NAME_MAX: c_int = 71;
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pub const _SC_TTY_NAME_MAX: c_int = 72;
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// ...
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pub const _SC_SYMLOOP_MAX: c_int = 173;
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// ...
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pub const _SC_HOST_NAME_MAX: c_int = 180;
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// } POSIX.1
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#[no_mangle]
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pub extern "C" fn sysconf(name: c_int) -> c_long {
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//TODO: Real values
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match name {
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_SC_ARG_MAX => 4096,
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_SC_CHILD_MAX => 65536,
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_SC_CLK_TCK => 100,
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_SC_NGROUPS_MAX => 65536,
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_SC_OPEN_MAX => 1024,
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_SC_STREAM_MAX => 16,
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_SC_TZNAME_MAX => -1,
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_SC_VERSION => 200809,
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_SC_PAGESIZE => Sys::getpagesize()
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.try_into()
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.expect("page size not representable as type `long`"),
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_SC_RE_DUP_MAX => 32767,
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_SC_GETPW_R_SIZE_MAX => -1,
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_SC_LOGIN_NAME_MAX => 256,
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_SC_TTY_NAME_MAX => 32,
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_SC_SYMLOOP_MAX => -1,
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_SC_HOST_NAME_MAX => 64,
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_ => {
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unsafe {
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platform::errno = errno::EINVAL;
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}
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-1
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}
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}
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}
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