mirror of
https://github.com/wpilibsuite/allwpilib
synced 2026-06-20 00:51:42 +00:00
8f1f64ffb6
Also update copyright to include "and other WPILib contributors" and clarify license referral language to not be restricted to FIRST teams.
54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
// Copyright (c) FIRST and other WPILib contributors.
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// Open Source Software; you can modify and/or share it under the terms of
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// the WPILib BSD license file in the root directory of this project.
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#include "wpi/hostname.h"
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#include <cstdlib>
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#include <string>
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#include "uv.h"
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#include "wpi/SmallVector.h"
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#include "wpi/StringRef.h"
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namespace wpi {
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std::string GetHostname() {
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std::string rv;
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char name[256];
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size_t size = sizeof(name);
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int err = uv_os_gethostname(name, &size);
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if (err == 0) {
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rv.assign(name, size);
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} else if (err == UV_ENOBUFS) {
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char* name2 = static_cast<char*>(std::malloc(size));
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err = uv_os_gethostname(name2, &size);
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if (err == 0) rv.assign(name2, size);
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std::free(name2);
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}
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return rv;
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}
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StringRef GetHostname(SmallVectorImpl<char>& name) {
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// Use a tmp array to not require the SmallVector to be too large.
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char tmpName[256];
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size_t size = sizeof(tmpName);
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name.clear();
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int err = uv_os_gethostname(tmpName, &size);
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if (err == 0) {
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name.append(tmpName, tmpName + size);
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} else if (err == UV_ENOBUFS) {
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name.resize(size);
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err = uv_os_gethostname(name.data(), &size);
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if (err != 0) size = 0;
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}
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return StringRef{name.data(), size};
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}
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} // namespace wpi
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