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LibCore: Add syscall wrapper for gethostname()

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This commit is contained in:
Kenneth Myhra 2021-11-27 10:13:33 +01:00 • committed by Andreas Kling
commit 951d8a06d8
Notes: sideshowbarker 2024-07-18 00:38:11 +09:00
2 changed files with 11 additions and 0 deletions
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10
Userland/Libraries/LibCore/System.cpp
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@ -1,5 +1,6 @@
/* /*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org> * Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Kenneth Myhra <kennethmyhra@gmail.com>
* *
* SPDX-License-Identifier: BSD-2-Clause * SPDX-License-Identifier: BSD-2-Clause
*/ */
@ -195,4 +196,13 @@ ErrorOr<String> ptsname(int fd)
return String(name); return String(name);
} }
ErrorOr<String> gethostname()
{
char hostname[256];
int rc = ::gethostname(hostname, sizeof(hostname));
if (rc < 0)
return Error::from_syscall("gethostname"sv, -errno);
return String(&hostname[0]);
}
} }

1
Userland/Libraries/LibCore/System.h
View file

@ -32,5 +32,6 @@ ErrorOr<ssize_t> write(int fd, void const* data, size_t data_size);
ErrorOr<void> kill(pid_t, int signal); ErrorOr<void> kill(pid_t, int signal);
ErrorOr<int> dup2(int source_fd, int destination_fd); ErrorOr<int> dup2(int source_fd, int destination_fd);
ErrorOr<String> ptsname(int fd); ErrorOr<String> ptsname(int fd);
ErrorOr<String> gethostname();
} }