44 lines
1.0 KiB
Rust
44 lines
1.0 KiB
Rust
// Copyright (c) 2015 T. Okubo
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// This file is part of vlc-rs.
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// Licensed under the MIT license, see the LICENSE file.
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use std::ffi::{CString, CStr, NulError};
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use std::path::Path;
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use std::borrow::Cow;
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use libc::c_char;
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// Convert String to CString.
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// Panic if the string includes null bytes.
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pub fn to_cstr(s: &str) -> CString {
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CString::new(s.to_owned()).expect("Error: Unexpected null byte")
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}
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// Convert *const c_char to String
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pub unsafe fn from_cstr(p: *const c_char) -> Option<String> {
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if p.is_null() {
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None
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}else{
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let cstr = CStr::from_ptr(p);
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Some(cstr.to_string_lossy().into_owned())
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}
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}
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// Convert *const c_char to &str
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pub unsafe fn from_cstr_ref<'a>(p: *const c_char) -> Option<Cow<'a, str>> {
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if p.is_null() {
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None
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}else{
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let cstr = CStr::from_ptr(p);
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Some(cstr.to_string_lossy())
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}
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}
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// Create CString from &Path
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pub fn path_to_cstr(path: &Path) -> Result<CString, NulError> {
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let path = CString::new(path.to_string_lossy().into_owned())?;
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Ok(path)
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}
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