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`ptsname()` mutates global variables and mutating global variables is
always considered `unsafe` by Rust.
Reference:
https://github.com/nix-rust/nix/pull/742#issuecomment-324385919
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This adds fexecve() to `nix::unistd`. It is available in libc since 0.2.29.
Ref: http://pubs.opengroup.org/onlinepubs/9699919799/functions/fexecve.html
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728: Use upstream libc ptrace FFI r=Susurrus
This might fail on Mac because of how libc defines ptrace on that platform, but we'll see!
731: Use upstream libc definitions in mman module r=asomers
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701: Calculate `nfds` parameter for `select` r=asomers
Doing this behind the scenes makes the API less error-prone and easier
to use. It should also fix my issue in https://github.com/nix-rust/nix/issues/679#issuecomment-316838148
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Doing this behind the scenes makes the API less error-prone and easier
to use. It should also fix https://github.com/nix-rust/nix/issues/679#issuecomment-316838148
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709: Mark nix::sys::ptrace::ptrace as unsafe, add safe variants of some routines r=Susurrus
These include:
* PTRACE_TRACEME
* PTRACE_CONT
* PTRACE_ATTACH
* PTRACE_SYSCALL
This is a part of #666, which is being split up into a couple smaller PRs.
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* Use upstream libc FFI declarations and constants
* Use more Rust-y interface of returning entire struct versus passing it as an
argument to (f)statvfs.
* Replace field accesses with accessor methods
* Flatten vfs module into parent
* Remove all non-libc-based interfaces for working with the statvfs struct
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688: Support for OpenBSD r=Susurrus
Fixes #685
These changes get nix building on OpenBSD 6.1. There is one failing test that I want a little guidance on:
```
error[E0308]: mismatched types
--> src/sys/event.rs:333:30
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333 | assert!(expected.data == actual.data());
| ^^^^^^^^^^^^^ expected i64, found isize
```
`KEvent::data` is:
```
pub fn data(&self) -> intptr_t {
self.kevent.data as intptr_t
}
```
I assume the test should be updated to cast to the expected type but wanted to confirm that before making the change.
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722: Add a convenience method .pid() for WaitStatus. r=asomers
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672: add poll module in Android r=Susurrus
`poll` functions are defined in Android as well.
libc is missing some constant, but once rust-lang/libc#663 is merged, it'll be good to merge here.
Closes #711
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The recommended way to trace syscalls with ptrace is to set the
PTRACE_O_TRACESYSGOOD option, to distinguish syscall stops from
receiving an actual SIGTRAP. In C, this would cause WSTOPSIG to return
SIGTRAP | 0x80, but nix wants to parse that as an actual signal.
Add another wait status type for syscall stops (in the language of the
ptrace(2) manpage, "PTRACE_EVENT stops" and "Syscall-stops" are
different things), and mask out bit 0x80 from signals before trying to
parse it.
Closes #550
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The recommended way to trace syscalls with ptrace is to set the
PTRACE_O_TRACESYSGOOD option, to distinguish syscall stops from
receiving an actual SIGTRAP. In C, this would cause WSTOPSIG to return
SIGTRAP | 0x80, but nix wants to parse that as an actual signal.
Add another wait status type for syscall stops (in the language of the
ptrace(2) manpage, "PTRACE_EVENT stops" and "Syscall-stops" are
different things), and mask out bit 0x80 from signals before trying to
parse it.
Closes #550
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630: Add wrappers for sysconf(3), pathconf(2), and fpathconf(2) r=asomers
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Nothing that nix currently binds is architecture-specific, and Android
supports ptrace just as much as non-Android Linux.
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the previous definition were linux specific.
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The officially documented type, and the type in sched.h, for this
argument is pid_t.
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Some ptrace functions return structures through the data argument. This commit adds utilities to return data through this mechanism and function specialisations for a few of these functions (getting event messages or the siginfo_t struct). Once the next version of libc is released these utilities will be expanded to include the fpregs and user_regs structs.
Ptrace requests that are now satisfied by a more specific public function will return an unsupported operation error. This has involved adding an UnsupportedOperation to the nix::Error enum and removed the mapping from Error to Errno and from Error to std::io::Error.
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