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Merged
bors merged 8 commits into from
Mar 3, 2018
Merged

Add passwd/group APIs needed for nix-rust/nix#864 #934

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5f9538d
Add passwd/group APIs needed for nix-rust/nix#864
ctrlcctrlv Mar 3, 2018
74c554c
Fix build error on stable Rust
ctrlcctrlv Mar 3, 2018
f59c095
Remove "double blank line"
ctrlcctrlv Mar 3, 2018
6228556
Fix issues raised by @gnzlbg
ctrlcctrlv Mar 4, 2018
0f24a66
Fix long line
ctrlcctrlv Mar 4, 2018
99869e0
Fix failure to document for Open/NetBSD
ctrlcctrlv Mar 4, 2018
6d959f1
Fix BSD errors (hopefully)
ctrlcctrlv Mar 4, 2018
d058e0c
Refresh Cargo.lock
ctrlcctrlv Mar 5, 2018
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20 changes: 10 additions & 10 deletions Cargo.lock
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2 changes: 1 addition & 1 deletion Cargo.toml
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
[package]

name = "libc"
version = "0.2.37"
version = "0.2.38"
authors = ["The Rust Project Developers"]
license = "MIT/Apache-2.0"
readme = "README.md"
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17 changes: 17 additions & 0 deletions src/unix/bsd/mod.rs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
use dox::{mem, Option};
use unix::group;

pub type wchar_t = i32;
pub type off_t = i64;
Expand Down Expand Up @@ -388,6 +389,10 @@ extern {
pub fn getpwent() -> *mut passwd;
pub fn setpwent();
pub fn endpwent();
pub fn setgrent();
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@gnzlbg gnzlbg Mar 1, 2018

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setgrent is not available in freebsd (or it looks like this is the case), you are going to have to put it in the folders of all bsd targets except for the freebsd one :/

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@ctrlcctrlv ctrlcctrlv Mar 2, 2018

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setgrent is available in FreeBSD. What gives you the impression it isn't?

https://github.com/freebsd/freebsd/blob/d5842c73935af7f7a7eeaeaec75ad8f3cf6cdf50/include/grp.h#L80

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@gnzlbg gnzlbg Mar 2, 2018 •
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setgrent is available in FreeBSD. What gives you the impression it isn't?

Indeed, this buildbot: https://travis-ci.org/rust-lang/libc/jobs/347737123#L1402

Says that the pointer types are incompatible. It looks like its signature was changed in: freebsd/freebsd-src@786c392

from int setgrent() to void setgrent(). That commit was 2 years ago, but it might be that we are testing against a FreeBSD release that is older as the release where that commit was included.

You might want to change the signature to int setgrent() and see if that fixes the build. If so, please open an issue about updating the FreeBSD version. Ideally we would do that in a different PR, and then update everything that breaks (like making setgrent void setgrent()).

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@gnzlbg gnzlbg Mar 2, 2018 •
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If it turns out to be the case that changing the signature to int setgrent() fixes this issue, what you can also do is change it back afterwards to void setgrent() and whitelist the function here: https://github.com/rust-lang/libc/blob/master/libc-test/build.rs#L606

By adding a match arm like this:

// FIXME: need to upgrade FreeBSD version. Issue: rust-lang/libc/xxxxxx
"setgrent" if freebsd => true,

This basically disables testing for the setgrent function for FreeBSD.

pub fn endgrent();
pub fn getgrent() -> *mut group;

pub fn getprogname() -> *const ::c_char;
pub fn setprogname(name: *const ::c_char);
pub fn getloadavg(loadavg: *mut ::c_double, nelem: ::c_int) -> ::c_int;
Expand Down Expand Up @@ -513,6 +518,18 @@ extern {
buf: *mut ::c_char,
buflen: ::size_t,
result: *mut *mut passwd) -> ::c_int;
#[cfg_attr(target_os = "netbsd", link_name = "__getpwent_r50")]
#[cfg_attr(target_os = "solaris", link_name = "__posix_getpwent_r")]
pub fn getpwent_r(pwd: *mut passwd,
buf: *mut ::c_char,
buflen: ::size_t,
result: *mut *mut passwd) -> ::c_int;
#[cfg_attr(target_os = "netbsd", link_name = "__getgrent_r50")]
#[cfg_attr(target_os = "solaris", link_name = "__posix_getgrent_r")]
pub fn getgrent_r(grp: *mut group,
buf: *mut ::c_char,
buflen: ::size_t,
result: *mut *mut group) -> ::c_int;
#[cfg_attr(all(target_os = "macos", target_arch ="x86"),
link_name = "sigwait$UNIX2003")]
#[cfg_attr(target_os = "solaris", link_name = "__posix_sigwait")]
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17 changes: 17 additions & 0 deletions src/unix/notbsd/linux/mod.rs
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
//! Linux-specific definitions for linux-like values

use dox::{mem, Option};
use unix::group;

pub type useconds_t = u32;
pub type dev_t = u64;
Expand Down Expand Up @@ -1468,9 +1469,13 @@ extern {
pub fn setpwent();
pub fn endpwent();
pub fn getpwent() -> *mut passwd;
pub fn setgrent();
pub fn endgrent();
pub fn getgrent() -> *mut group;
pub fn setspent();
pub fn endspent();
pub fn getspent() -> *mut spwd;

pub fn getspnam(__name: *const ::c_char) -> *mut spwd;

pub fn shm_open(name: *const c_char, oflag: ::c_int,
Expand Down Expand Up @@ -1826,6 +1831,18 @@ extern {
buf: *mut ::c_char,
buflen: ::size_t,
result: *mut *mut passwd) -> ::c_int;
#[cfg_attr(target_os = "netbsd", link_name = "__getpwent_r50")]
#[cfg_attr(target_os = "solaris", link_name = "__posix_getpwent_r")]
pub fn getpwent_r(pwd: *mut passwd,
buf: *mut ::c_char,
buflen: ::size_t,
result: *mut *mut passwd) -> ::c_int;
#[cfg_attr(target_os = "netbsd", link_name = "__getgrent_r50")]
#[cfg_attr(target_os = "solaris", link_name = "__posix_getgrent_r")]
pub fn getgrent_r(grp: *mut group,
buf: *mut ::c_char,
buflen: ::size_t,
result: *mut *mut group) -> ::c_int;
#[cfg_attr(all(target_os = "macos", target_arch ="x86"),
link_name = "sigwait$UNIX2003")]
#[cfg_attr(target_os = "solaris", link_name = "__posix_sigwait")]
Expand Down