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LibCore: Add syscall wrapper for getgrnam()

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This commit is contained in:
Kenneth Myhra 2021-12-06 21:24:18 +01:00 • committed by Brian Gianforcaro
parent cd5063555e
commit c4bd46023b
2 changed files with 20 additions and 0 deletions
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18
Userland/Libraries/LibCore/System.cpp
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@ -342,4 +342,22 @@ ErrorOr<struct passwd> getpwnam(StringView name)
return Error::from_string_literal("getpwnam: Unknown username"sv);
}
ErrorOr<struct group> getgrnam(StringView name)
{
::setgrent();
if (errno)
return Error::from_syscall("getgrnam"sv, -errno);
while (auto* gr = ::getgrent()) {
if (errno)
return Error::from_syscall("getgrnam"sv, -errno);
if (gr->gr_name == name)
return *gr;
}
if (errno)
return Error::from_syscall("getgrnam"sv, -errno);
else
return Error::from_string_literal("getgrnam: Unknown username"sv);
}
}