From 431bd069f0cc66abec8b27b94289955310db8679 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sat, 1 Jan 2022 18:26:17 +0100
Subject: LibCore: Add Core::System wrappers for getspent() and getspnam()

---
 Userland/Libraries/LibCore/System.cpp | 25 +++++++++++++++++++++++++
 Userland/Libraries/LibCore/System.h   |  9 +++++++++
 2 files changed, 34 insertions(+)

diff --git a/Userland/Libraries/LibCore/System.cpp b/Userland/Libraries/LibCore/System.cpp
index 17ff8023af..3cddacc95e 100644
--- a/Userland/Libraries/LibCore/System.cpp
+++ b/Userland/Libraries/LibCore/System.cpp
@@ -107,6 +107,31 @@ ErrorOr<long> ptrace(int request, pid_t tid, void* address, void* data)
 }
 #endif
 
+#ifndef AK_OS_BSD_GENERIC
+ErrorOr<Optional<struct spwd>> getspent()
+{
+    errno = 0;
+    if (auto* spwd = ::getspent())
+        return *spwd;
+    if (errno)
+        return Error::from_syscall("getspent"sv, -errno);
+    return Optional<struct spwd> {};
+}
+
+ErrorOr<Optional<struct spwd>> getspnam(StringView name)
+{
+    errno = 0;
+    ::setspent();
+    while (auto* spwd = ::getspent()) {
+        if (spwd->sp_namp == name)
+            return *spwd;
+    }
+    if (errno)
+        return Error::from_syscall("getspnam"sv, -errno);
+    return Optional<struct spwd> {};
+}
+#endif
+
 #ifndef AK_OS_MACOS
 ErrorOr<int> accept4(int sockfd, sockaddr* address, socklen_t* address_length, int flags)
 {
diff --git a/Userland/Libraries/LibCore/System.h b/Userland/Libraries/LibCore/System.h
index 318cdde735..8630e58485 100644
--- a/Userland/Libraries/LibCore/System.h
+++ b/Userland/Libraries/LibCore/System.h
@@ -22,6 +22,10 @@
 #include <time.h>
 #include <utime.h>
 
+#ifndef AK_OS_BSD_GENERIC
+#    include <shadow.h>
+#endif
+
 namespace Core::System {
 
 #ifdef __serenity__
@@ -35,6 +39,11 @@ ErrorOr<void> mount(int source_fd, StringView target, StringView fs_type, int fl
 ErrorOr<long> ptrace(int request, pid_t tid, void* address, void* data);
 #endif
 
+#ifndef AK_OS_BSD_GENERIC
+ErrorOr<Optional<struct spwd>> getspent();
+ErrorOr<Optional<struct spwd>> getspnam(StringView name);
+#endif
+
 #ifndef AK_OS_MACOS
 ErrorOr<int> accept4(int sockfd, struct sockaddr*, socklen_t*, int flags);
 #endif
-- 
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