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LibCore: Add syscall wrapper for ftruncate()

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This commit is contained in:
Andreas Kling 2021-11-23 12:16:07 +01:00
parent 4bf08e4d52
commit 4a213869f2
2 changed files with 8 additions and 0 deletions
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7
Userland/Libraries/LibCore/System.cpp
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@ -123,4 +123,11 @@ ErrorOr<void> close(int fd)
return {}; return {};
} }
ErrorOr<void> ftruncate(int fd, off_t length)
{
if (::ftruncate(fd, length) < 0)
return Error::from_syscall("ftruncate"sv, -errno);
return {};
}
} }

1
Userland/Libraries/LibCore/System.h
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@ -24,5 +24,6 @@ ErrorOr<void*> mmap(void* address, size_t, int protection, int flags, int fd, of
ErrorOr<void> munmap(void* address, size_t); ErrorOr<void> munmap(void* address, size_t);
ErrorOr<int> open(StringView path, int options, ...); ErrorOr<int> open(StringView path, int options, ...);
ErrorOr<void> close(int fd); ErrorOr<void> close(int fd);
ErrorOr<void> ftruncate(int fd, off_t length);
} }