diff --git a/iceoryx_hoofs/posix/auth/include/iox/posix_group.hpp b/iceoryx_hoofs/posix/auth/include/iox/posix_group.hpp
index 8fb70e0f10..8b873d803b 100644
--- a/iceoryx_hoofs/posix/auth/include/iox/posix_group.hpp
+++ b/iceoryx_hoofs/posix/auth/include/iox/posix_group.hpp
@@ -31,23 +31,23 @@ class PosixGroup
 {
   public:
     using groupName_t = string<platform::MAX_GROUP_NAME_LENGTH>;
-    explicit PosixGroup(const gid_t id) noexcept;
+    explicit PosixGroup(const iox_gid_t id) noexcept;
     explicit PosixGroup(const groupName_t& name) noexcept;
 
     bool operator==(const PosixGroup& other) const noexcept;
 
     groupName_t getName() const noexcept;
-    gid_t getID() const noexcept;
+    iox_gid_t getID() const noexcept;
 
     bool doesExist() const noexcept;
 
     static PosixGroup getGroupOfCurrentProcess() noexcept;
 
-    static optional<uid_t> getGroupID(const groupName_t& name) noexcept;
-    static optional<groupName_t> getGroupName(gid_t id) noexcept;
+    static optional<iox_uid_t> getGroupID(const groupName_t& name) noexcept;
+    static optional<groupName_t> getGroupName(iox_gid_t id) noexcept;
 
   private:
-    gid_t m_id;
+    iox_gid_t m_id;
     bool m_doesExist{false};
 };
 
diff --git a/iceoryx_hoofs/posix/auth/include/iox/posix_user.hpp b/iceoryx_hoofs/posix/auth/include/iox/posix_user.hpp
index 4737d46761..3c232fce5f 100644
--- a/iceoryx_hoofs/posix/auth/include/iox/posix_user.hpp
+++ b/iceoryx_hoofs/posix/auth/include/iox/posix_user.hpp
@@ -37,22 +37,22 @@ class PosixUser
 
     using userName_t = string<platform::MAX_USER_NAME_LENGTH>;
 
-    explicit PosixUser(const uid_t id) noexcept;
+    explicit PosixUser(const iox_uid_t id) noexcept;
     explicit PosixUser(const userName_t& name) noexcept;
 
     groupVector_t getGroups() const noexcept;
     userName_t getName() const noexcept;
-    uid_t getID() const noexcept;
+    iox_uid_t getID() const noexcept;
 
     bool doesExist() const noexcept;
 
     static PosixUser getUserOfCurrentProcess() noexcept;
 
-    static optional<uid_t> getUserID(const userName_t& name) noexcept;
-    static optional<userName_t> getUserName(uid_t id) noexcept;
+    static optional<iox_uid_t> getUserID(const userName_t& name) noexcept;
+    static optional<userName_t> getUserName(iox_uid_t id) noexcept;
 
   private:
-    uid_t m_id;
+    iox_uid_t m_id;
     bool m_doesExist{false};
 };
 
diff --git a/iceoryx_hoofs/posix/auth/source/posix_group.cpp b/iceoryx_hoofs/posix/auth/source/posix_group.cpp
index 3df228f393..dd5213d32c 100644
--- a/iceoryx_hoofs/posix/auth/source/posix_group.cpp
+++ b/iceoryx_hoofs/posix/auth/source/posix_group.cpp
@@ -27,7 +27,7 @@
 
 namespace iox
 {
-PosixGroup::PosixGroup(gid_t id) noexcept
+PosixGroup::PosixGroup(iox_gid_t id) noexcept
     : m_id(id)
     , m_doesExist(getGroupName(id).has_value())
 {
@@ -43,7 +43,7 @@ PosixGroup::PosixGroup(const PosixGroup::groupName_t& name) noexcept
     else
     {
         IOX_LOG(ERROR, "Error: Group name not found");
-        m_id = std::numeric_limits<gid_t>::max();
+        m_id = std::numeric_limits<iox_gid_t>::max();
     }
 }
 
@@ -54,10 +54,10 @@ bool PosixGroup::operator==(const PosixGroup& other) const noexcept
 
 PosixGroup PosixGroup::getGroupOfCurrentProcess() noexcept
 {
-    return PosixGroup(getgid());
+    return PosixGroup(iox_getgid());
 }
 
-optional<gid_t> PosixGroup::getGroupID(const PosixGroup::groupName_t& name) noexcept
+optional<iox_gid_t> PosixGroup::getGroupID(const PosixGroup::groupName_t& name) noexcept
 {
     auto getgrnamCall = IOX_POSIX_CALL(getgrnam)(name.c_str()).failureReturnValue(nullptr).evaluate();
 
@@ -67,10 +67,10 @@ optional<gid_t> PosixGroup::getGroupID(const PosixGroup::groupName_t& name) noex
         return nullopt_t();
     }
 
-    return make_optional<gid_t>(getgrnamCall->value->gr_gid);
+    return make_optional<iox_gid_t>(getgrnamCall->value->gr_gid);
 }
 
-optional<PosixGroup::groupName_t> PosixGroup::getGroupName(gid_t id) noexcept
+optional<PosixGroup::groupName_t> PosixGroup::getGroupName(iox_gid_t id) noexcept
 {
     auto getgrgidCall = IOX_POSIX_CALL(getgrgid)(id).failureReturnValue(nullptr).evaluate();
 
@@ -94,7 +94,7 @@ PosixGroup::groupName_t PosixGroup::getName() const noexcept
     return groupName_t();
 }
 
-gid_t PosixGroup::getID() const noexcept
+iox_gid_t PosixGroup::getID() const noexcept
 {
     return m_id;
 }
diff --git a/iceoryx_hoofs/posix/auth/source/posix_user.cpp b/iceoryx_hoofs/posix/auth/source/posix_user.cpp
index 2f7b3dcfe3..186eda6a6d 100644
--- a/iceoryx_hoofs/posix/auth/source/posix_user.cpp
+++ b/iceoryx_hoofs/posix/auth/source/posix_user.cpp
@@ -20,6 +20,7 @@
 #include "iceoryx_platform/platform_correction.hpp"
 #include "iceoryx_platform/pwd.hpp"
 #include "iceoryx_platform/types.hpp"
+#include "iceoryx_platform/unistd.hpp"
 #include "iox/logging.hpp"
 #include "iox/posix_call.hpp"
 #include "iox/uninitialized_array.hpp"
@@ -28,7 +29,7 @@
 
 namespace iox
 {
-optional<uid_t> PosixUser::getUserID(const userName_t& name) noexcept
+optional<iox_uid_t> PosixUser::getUserID(const userName_t& name) noexcept
 {
     auto getpwnamCall = IOX_POSIX_CALL(getpwnam)(name.c_str()).failureReturnValue(nullptr).evaluate();
 
@@ -37,10 +38,10 @@ optional<uid_t> PosixUser::getUserID(const userName_t& name) noexcept
         IOX_LOG(ERROR, "Error: Could not find user '" << name << "'.");
         return nullopt_t();
     }
-    return make_optional<uid_t>(getpwnamCall->value->pw_uid);
+    return make_optional<iox_uid_t>(getpwnamCall->value->pw_uid);
 }
 
-optional<PosixUser::userName_t> PosixUser::getUserName(uid_t id) noexcept
+optional<PosixUser::userName_t> PosixUser::getUserName(iox_uid_t id) noexcept
 {
     auto getpwuidCall = IOX_POSIX_CALL(getpwuid)(id).failureReturnValue(nullptr).evaluate();
 
@@ -67,8 +68,8 @@ PosixUser::groupVector_t PosixUser::getGroups() const noexcept
         return groupVector_t();
     }
 
-    gid_t userDefaultGroup = getpwnamCall->value->pw_gid;
-    UninitializedArray<gid_t, MAX_NUMBER_OF_GROUPS> groups{}; // groups is initialized in iox_getgrouplist
+    iox_gid_t userDefaultGroup = getpwnamCall->value->pw_gid;
+    UninitializedArray<iox_gid_t, MAX_NUMBER_OF_GROUPS> groups{}; // groups is initialized in iox_getgrouplist
     int numGroups = MAX_NUMBER_OF_GROUPS;
 
     auto getgrouplistCall =
@@ -96,7 +97,7 @@ PosixUser::groupVector_t PosixUser::getGroups() const noexcept
     return vec;
 }
 
-PosixUser::PosixUser(uid_t id) noexcept
+PosixUser::PosixUser(iox_uid_t id) noexcept
     : m_id(id)
     , m_doesExist(getUserName(id).has_value())
 {
@@ -112,7 +113,7 @@ PosixUser::PosixUser(const PosixUser::userName_t& name) noexcept
     else
     {
         IOX_LOG(ERROR, "Error: User name not found");
-        m_id = std::numeric_limits<gid_t>::max();
+        m_id = std::numeric_limits<iox_gid_t>::max();
     }
 }
 
@@ -127,7 +128,7 @@ PosixUser::userName_t PosixUser::getName() const noexcept
     return userName_t();
 }
 
-uid_t PosixUser::getID() const noexcept
+iox_uid_t PosixUser::getID() const noexcept
 {
     return m_id;
 }
@@ -139,7 +140,7 @@ bool PosixUser::doesExist() const noexcept
 
 PosixUser PosixUser::getUserOfCurrentProcess() noexcept
 {
-    return PosixUser(geteuid());
+    return PosixUser(iox_geteuid());
 }
 
 } // namespace iox
diff --git a/iceoryx_hoofs/posix/design/include/iox/file_management_interface.hpp b/iceoryx_hoofs/posix/design/include/iox/file_management_interface.hpp
index d99e13d896..d97fdf52d9 100644
--- a/iceoryx_hoofs/posix/design/include/iox/file_management_interface.hpp
+++ b/iceoryx_hoofs/posix/design/include/iox/file_management_interface.hpp
@@ -61,7 +61,7 @@ enum class FileSetPermissionError : uint8_t
 namespace details
 {
 expected<iox_stat, FileStatError> get_file_status(const int fildes) noexcept;
-expected<void, FileSetOwnerError> set_owner(const int fildes, const uid_t uid, const gid_t gid) noexcept;
+expected<void, FileSetOwnerError> set_owner(const int fildes, const iox_uid_t uid, const iox_gid_t gid) noexcept;
 expected<void, FileSetPermissionError> set_permissions(const int fildes, const access_rights perms) noexcept;
 } // namespace details
 
@@ -71,16 +71,16 @@ class Ownership
   public:
     /// @brief Acquire the user id
     /// @returns uid
-    uid_t uid() const noexcept;
+    iox_uid_t uid() const noexcept;
 
     /// @brief Acquire the group id
     /// @returns gid
-    gid_t gid() const noexcept;
+    iox_gid_t gid() const noexcept;
 
     /// @brief Constructs a ownership object from a uid and a gid.
     /// @returns If the user or group does not exist it returns 'iox::nullopt' otherwise an Ownership object
     ///             with existing user and group
-    static optional<Ownership> from_user_and_group(const uid_t uid, const gid_t gid) noexcept;
+    static optional<Ownership> from_user_and_group(const iox_uid_t uid, const iox_gid_t gid) noexcept;
 
     /// @brief Constructs a ownership object from a user name and a group name.
     /// @returns If the user or group does not exist it returns 'iox::nullopt' otherwise an Ownership object
@@ -93,11 +93,11 @@ class Ownership
   private:
     template <typename>
     friend struct FileManagementInterface;
-    Ownership(const uid_t uid, const gid_t gid) noexcept;
+    Ownership(const iox_uid_t uid, const iox_gid_t gid) noexcept;
 
   private:
-    uid_t m_uid{std::numeric_limits<uid_t>::max()};
-    gid_t m_gid{std::numeric_limits<gid_t>::max()};
+    iox_uid_t m_uid{std::numeric_limits<iox_uid_t>::max()};
+    iox_gid_t m_gid{std::numeric_limits<iox_gid_t>::max()};
 };
 
 /// @brief Abstract implementation to manage things common to all file descriptor
diff --git a/iceoryx_hoofs/posix/design/source/file_management_interface.cpp b/iceoryx_hoofs/posix/design/source/file_management_interface.cpp
index 41e7092400..50d6162052 100644
--- a/iceoryx_hoofs/posix/design/source/file_management_interface.cpp
+++ b/iceoryx_hoofs/posix/design/source/file_management_interface.cpp
@@ -52,7 +52,7 @@ expected<iox_stat, FileStatError> get_file_status(const int fildes) noexcept
     return ok(file_status);
 }
 
-expected<void, FileSetOwnerError> set_owner(const int fildes, const uid_t uid, const gid_t gid) noexcept
+expected<void, FileSetOwnerError> set_owner(const int fildes, const iox_uid_t uid, const iox_gid_t gid) noexcept
 {
     auto result = IOX_POSIX_CALL(iox_fchown)(fildes, uid, gid).failureReturnValue(-1).evaluate();
 
@@ -118,17 +118,17 @@ expected<void, FileSetPermissionError> set_permissions(const int fildes, const a
 
 } // namespace details
 
-uid_t Ownership::uid() const noexcept
+iox_uid_t Ownership::uid() const noexcept
 {
     return m_uid;
 }
 
-gid_t Ownership::gid() const noexcept
+iox_gid_t Ownership::gid() const noexcept
 {
     return m_gid;
 }
 
-optional<Ownership> Ownership::from_user_and_group(const uid_t uid, const gid_t gid) noexcept
+optional<Ownership> Ownership::from_user_and_group(const iox_uid_t uid, const iox_gid_t gid) noexcept
 {
     if (!PosixUser(uid).doesExist() || !PosixGroup(gid).doesExist())
     {
@@ -156,7 +156,7 @@ Ownership Ownership::from_process() noexcept
     return Ownership(PosixUser::getUserOfCurrentProcess().getID(), PosixGroup::getGroupOfCurrentProcess().getID());
 }
 
-Ownership::Ownership(const uid_t uid, const gid_t gid) noexcept
+Ownership::Ownership(const iox_uid_t uid, const iox_gid_t gid) noexcept
     : m_uid{uid}
     , m_gid{gid}
 {
diff --git a/iceoryx_hoofs/posix/filesystem/source/file.cpp b/iceoryx_hoofs/posix/filesystem/source/file.cpp
index 8e2ad3e456..2219e2da70 100644
--- a/iceoryx_hoofs/posix/filesystem/source/file.cpp
+++ b/iceoryx_hoofs/posix/filesystem/source/file.cpp
@@ -203,7 +203,7 @@ void File::close_fd() noexcept
 
 expected<bool, FileAccessError> File::does_exist(const FilePath& file) noexcept
 {
-    auto result = IOX_POSIX_CALL(iox_access)(file.as_string().c_str(), F_OK).failureReturnValue(-1).evaluate();
+    auto result = IOX_POSIX_CALL(iox_access)(file.as_string().c_str(), IOX_F_OK).failureReturnValue(-1).evaluate();
 
     if (!result.has_error())
     {
diff --git a/iceoryx_hoofs/posix/ipc/source/posix_shared_memory.cpp b/iceoryx_hoofs/posix/ipc/source/posix_shared_memory.cpp
index 436dee8472..0d4c0022b6 100644
--- a/iceoryx_hoofs/posix/ipc/source/posix_shared_memory.cpp
+++ b/iceoryx_hoofs/posix/ipc/source/posix_shared_memory.cpp
@@ -129,7 +129,7 @@ expected<PosixSharedMemory, PosixSharedMemoryError> PosixSharedMemoryBuilder::cr
 
     if (hasOwnership)
     {
-        auto result = IOX_POSIX_CALL(ftruncate)(sharedMemoryFileHandle, static_cast<int64_t>(m_size))
+        auto result = IOX_POSIX_CALL(iox_ftruncate)(sharedMemoryFileHandle, static_cast<int64_t>(m_size))
                           .failureReturnValue(PosixSharedMemory::INVALID_HANDLE)
                           .evaluate();
         if (result.has_error())
diff --git a/iceoryx_hoofs/posix/utility/source/system_configuration.cpp b/iceoryx_hoofs/posix/utility/source/system_configuration.cpp
index b30a140d5f..65cceddabc 100644
--- a/iceoryx_hoofs/posix/utility/source/system_configuration.cpp
+++ b/iceoryx_hoofs/posix/utility/source/system_configuration.cpp
@@ -29,7 +29,7 @@ uint64_t pageSize() noexcept
 {
     // sysconf fails when one provides an invalid name parameter. _SC_PAGESIZE
     // is a valid name parameter therefore it should never fail.
-    return static_cast<uint64_t>(IOX_POSIX_CALL(sysconf)(_SC_PAGESIZE)
+    return static_cast<uint64_t>(IOX_POSIX_CALL(iox_sysconf)(IOX_SC_PAGESIZE)
                                      .failureReturnValue(-1)
                                      .evaluate()
                                      .or_else([](auto& r) {
diff --git a/iceoryx_hoofs/test/moduletests/test_posix_filesystem_posix_acl.cpp b/iceoryx_hoofs/test/moduletests/test_posix_filesystem_posix_acl.cpp
index b4f97db4d6..12b4bbbd56 100644
--- a/iceoryx_hoofs/test/moduletests/test_posix_filesystem_posix_acl.cpp
+++ b/iceoryx_hoofs/test/moduletests/test_posix_filesystem_posix_acl.cpp
@@ -60,7 +60,7 @@ struct PwUidResult
     char buff[BUFFER_SIZE];
 };
 
-std::unique_ptr<PwUidResult> iox_getpwuid(const uid_t uid)
+std::unique_ptr<PwUidResult> iox_getpwuid(const iox_uid_t uid)
 {
     passwd* resultPtr = nullptr;
     std::unique_ptr<PwUidResult> result = std::make_unique<PwUidResult>();
@@ -126,7 +126,7 @@ TEST_F(PosixAcl_test, writeSpecialUserPermissions)
     // no name specified
     EXPECT_FALSE(entryAdded);
 
-    auto name = iox_getpwuid(geteuid());
+    auto name = iox_getpwuid(iox_geteuid());
     ASSERT_TRUE(name);
     PosixUser::userName_t currentUserName(iox::TruncateToCapacity, name->pwd.pw_name);
 
@@ -209,11 +209,11 @@ TEST_F(PosixAcl_test, writeSpecialPermissionsWithID)
 {
     ::testing::Test::RecordProperty("TEST_ID", "ef0c7e17-de0e-4cfb-aafa-3e68580660e5");
 
-    auto name = iox_getpwuid(geteuid());
+    auto name = iox_getpwuid(iox_geteuid());
     ASSERT_TRUE(name);
     std::string currentUserName(name->pwd.pw_name);
-    uid_t currentUserId(name->pwd.pw_uid);
-    gid_t groupId = 0; // root
+    iox_uid_t currentUserId(name->pwd.pw_uid);
+    iox_gid_t groupId = 0; // root
 
     bool entryAdded = m_accessController.addPermissionEntry(
         PosixAcl::Category::SPECIFIC_USER, PosixAcl::Permission::READWRITE, currentUserId);
@@ -254,7 +254,7 @@ TEST_F(PosixAcl_test, writeSpecialPermissionsWithID)
 TEST_F(PosixAcl_test, addNameInWrongPlace)
 {
     ::testing::Test::RecordProperty("TEST_ID", "2d2dbb0d-1fb6-4569-8651-d341a4525ea6");
-    auto name = iox_getpwuid(geteuid());
+    auto name = iox_getpwuid(iox_geteuid());
     ASSERT_TRUE(name);
 
     m_accessController.addPermissionEntry(PosixAcl::Category::GROUP, PosixAcl::Permission::READ);
diff --git a/iceoryx_platform/freertos/include/iceoryx_platform/grp.hpp b/iceoryx_platform/freertos/include/iceoryx_platform/grp.hpp
index f22c0727ba..275d12b7f8 100644
--- a/iceoryx_platform/freertos/include/iceoryx_platform/grp.hpp
+++ b/iceoryx_platform/freertos/include/iceoryx_platform/grp.hpp
@@ -19,11 +19,13 @@
 #ifndef IOX_HOOFS_FREERTOS_PLATFORM_GRP_HPP
 #define IOX_HOOFS_FREERTOS_PLATFORM_GRP_HPP
 
+#include "iceoryx_platform/types.hpp"
+
 struct group
 {
     const char* gr_name;
     const char* gr_passwd;
-    gid_t gr_gid;
+    iox_gid_t gr_gid;
     const char** gr_mem;
 };
 
@@ -39,7 +41,7 @@ inline struct group* getgrnam(const char*)
     return &dummy;
 }
 
-inline struct group* getgrgid(gid_t)
+inline struct group* getgrgid(iox_gid_t)
 {
     static const char* groupName = "iceoryx_freertos_group";
     static const char* groupPasswd = "iceoryx_freertos_passwd";
@@ -51,7 +53,7 @@ inline struct group* getgrgid(gid_t)
     return &dummy;
 }
 
-inline int iox_getgrouplist(const char*, gid_t, gid_t* groups, int* ngroups)
+inline int iox_getgrouplist(const char*, iox_gid_t, iox_gid_t* groups, int* ngroups)
 {
     groups[0] = 0;
     *ngroups = 1;
diff --git a/iceoryx_platform/freertos/include/iceoryx_platform/types.hpp b/iceoryx_platform/freertos/include/iceoryx_platform/types.hpp
index 4dc66346f8..9f4d746880 100644
--- a/iceoryx_platform/freertos/include/iceoryx_platform/types.hpp
+++ b/iceoryx_platform/freertos/include/iceoryx_platform/types.hpp
@@ -19,4 +19,9 @@
 #ifndef IOX_HOOFS_FREERTOS_PLATFORM_TYPES_HPP
 #define IOX_HOOFS_FREERTOS_PLATFORM_TYPES_HPP
 
+#include <sys/types.h>
+
+using iox_gid_t = gid_t;
+using iox_uid_t = uid_t;
+
 #endif // IOX_HOOFS_FREERTOS_PLATFORM_TYPES_HPP
diff --git a/iceoryx_platform/freertos/include/iceoryx_platform/unistd.hpp b/iceoryx_platform/freertos/include/iceoryx_platform/unistd.hpp
index 71fd853f26..72569a1222 100644
--- a/iceoryx_platform/freertos/include/iceoryx_platform/unistd.hpp
+++ b/iceoryx_platform/freertos/include/iceoryx_platform/unistd.hpp
@@ -19,20 +19,32 @@
 #ifndef IOX_HOOFS_FREERTOS_PLATFORM_UNISTD_HPP
 #define IOX_HOOFS_FREERTOS_PLATFORM_UNISTD_HPP
 
+#include "iceoryx_platform/types.hpp"
+
 #include <unistd.h>
 
 #define IOX_SEEK_SET SEEK_SET
+#define IOX_SC_PAGESIZE _SC_PAGESIZE
 
 using iox_off_t = off_t;
 using iox_ssize_t = ssize_t;
 
+#define IOX_F_OK F_OK
+#define IOX_X_OK X_OK
+#define IOX_W_OK W_OK
+#define IOX_R_OK R_OK
+
+int iox_ftruncate(int fildes, off_t length);
+long iox_sysconf(int name);
 int iox_close(int fd);
 int iox_ext_close(int fd);
-int iox_fchown(int fd, uid_t owner, gid_t group);
+int iox_fchown(int fd, iox_uid_t owner, iox_gid_t group);
 int iox_access(const char* pathname, int mode);
 int iox_unlink(const char* pathname);
 iox_off_t iox_lseek(int fd, iox_off_t offset, int whence);
 iox_ssize_t iox_read(int fd, void* buf, size_t count);
 iox_ssize_t iox_write(int fd, const void* buf, size_t count);
+iox_gid_t iox_getgid(void);
+iox_uid_t iox_geteuid(void);
 
 #endif // IOX_HOOFS_FREERTOS_PLATFORM_UNISTD_HPP
diff --git a/iceoryx_platform/freertos/source/pwd.cpp b/iceoryx_platform/freertos/source/pwd.cpp
index eefca7349e..463d9e9ef6 100644
--- a/iceoryx_platform/freertos/source/pwd.cpp
+++ b/iceoryx_platform/freertos/source/pwd.cpp
@@ -32,7 +32,7 @@ struct passwd* getpwnam(const char*)
     return &dummy;
 }
 
-struct passwd* getpwuid(uid_t)
+struct passwd* getpwuid(iox_uid_t)
 {
     static char value[] = "iceoryx_freertos_dummy";
     static struct passwd dummy;
diff --git a/iceoryx_platform/freertos/source/unistd.cpp b/iceoryx_platform/freertos/source/unistd.cpp
index 728941f549..40f089e5f8 100644
--- a/iceoryx_platform/freertos/source/unistd.cpp
+++ b/iceoryx_platform/freertos/source/unistd.cpp
@@ -35,7 +35,7 @@ int iox_ext_close(int)
     return 0;
 }
 
-int ftruncate(int fd, off_t length)
+int iox_ftruncate(int fd, off_t length)
 {
     std::lock_guard<std::mutex> lock{ShmFile::openFilesMutex};
     const auto iter = std::find_if(
@@ -44,32 +44,14 @@ int ftruncate(int fd, off_t length)
     return iter->ftruncate(length) ? 0 : -1;
 }
 
-gid_t getgid(void)
-{
-    // Lets just say that on FreeRTOS, all group IDs are 1
-    return 1;
-}
-
-gid_t getegid(void)
-{
-    // Lets just say that on FreeRTOS, all effective group IDs are 1
-    return 1;
-}
-
-uid_t geteuid(void)
-{
-    // Lets just say that on FreeRTOS, all user IDs are 1
-    return 1;
-}
-
-long sysconf(int)
+long iox_sysconf(int)
 {
     // This is only ever used to find the page size. Lets just return 4 kB as usual, even though there is no paging on
     // FreeRTOS
     return 4096;
 }
 
-int iox_fchown(int, uid_t, gid_t)
+int iox_fchown(int, iox_uid_t, iox_gid_t)
 {
     return 0;
 }
@@ -98,3 +80,15 @@ iox_ssize_t iox_write(int, const void*, size_t)
 {
     return 0;
 }
+
+iox_gid_t iox_getgid(void)
+{
+    // Lets just say that on FreeRTOS, all group IDs are 1
+    return 1;
+}
+
+iox_uid_t iox_geteuid(void)
+{
+    // Lets just say that on FreeRTOS, all user IDs are 1
+    return 1;
+}
diff --git a/iceoryx_platform/linux/include/iceoryx_platform/grp.hpp b/iceoryx_platform/linux/include/iceoryx_platform/grp.hpp
index 8f171012d4..e03dbf87d8 100644
--- a/iceoryx_platform/linux/include/iceoryx_platform/grp.hpp
+++ b/iceoryx_platform/linux/include/iceoryx_platform/grp.hpp
@@ -17,8 +17,10 @@
 #ifndef IOX_HOOFS_LINUX_PLATFORM_GRP_HPP
 #define IOX_HOOFS_LINUX_PLATFORM_GRP_HPP
 
+#include "iceoryx_platform/types.hpp"
+
 #include <grp.h>
 
-int iox_getgrouplist(const char* user, gid_t group, gid_t* groups, int* ngroups);
+int iox_getgrouplist(const char* user, iox_gid_t group, iox_gid_t* groups, int* ngroups);
 
-#endif // IOX_HOOFS_LINUX_PLATFORM_GRP_HPP
\ No newline at end of file
+#endif // IOX_HOOFS_LINUX_PLATFORM_GRP_HPP
diff --git a/iceoryx_platform/linux/include/iceoryx_platform/types.hpp b/iceoryx_platform/linux/include/iceoryx_platform/types.hpp
index 180600b3da..3b247b4be5 100644
--- a/iceoryx_platform/linux/include/iceoryx_platform/types.hpp
+++ b/iceoryx_platform/linux/include/iceoryx_platform/types.hpp
@@ -19,4 +19,7 @@
 
 #include <sys/types.h>
 
+using iox_gid_t = gid_t;
+using iox_uid_t = uid_t;
+
 #endif // IOX_HOOFS_LINUX_PLATFORM_TYPES_HPP
diff --git a/iceoryx_platform/linux/include/iceoryx_platform/unistd.hpp b/iceoryx_platform/linux/include/iceoryx_platform/unistd.hpp
index 21e9493e90..3f69ac9239 100644
--- a/iceoryx_platform/linux/include/iceoryx_platform/unistd.hpp
+++ b/iceoryx_platform/linux/include/iceoryx_platform/unistd.hpp
@@ -17,20 +17,32 @@
 #ifndef IOX_HOOFS_LINUX_PLATFORM_UNISTD_HPP
 #define IOX_HOOFS_LINUX_PLATFORM_UNISTD_HPP
 
+#include "iceoryx_platform/types.hpp"
+
 #include <unistd.h>
 
 #define IOX_SEEK_SET SEEK_SET
+#define IOX_SC_PAGESIZE _SC_PAGESIZE
 
 using iox_off_t = off_t;
 using iox_ssize_t = ssize_t;
 
+#define IOX_F_OK F_OK
+#define IOX_X_OK X_OK
+#define IOX_W_OK W_OK
+#define IOX_R_OK R_OK
+
+int iox_ftruncate(int fildes, off_t length);
+long iox_sysconf(int name);
 int iox_close(int fd);
 int iox_ext_close(int fd);
-int iox_fchown(int fd, uid_t owner, gid_t group);
+int iox_fchown(int fd, iox_uid_t owner, iox_gid_t group);
 int iox_access(const char* pathname, int mode);
 int iox_unlink(const char* pathname);
 iox_off_t iox_lseek(int fd, iox_off_t offset, int whence);
 iox_ssize_t iox_read(int fd, void* buf, size_t count);
 iox_ssize_t iox_write(int fd, const void* buf, size_t count);
+iox_gid_t iox_getgid(void);
+iox_uid_t iox_geteuid(void);
 
 #endif // IOX_HOOFS_LINUX_PLATFORM_UNISTD_HPP
diff --git a/iceoryx_platform/linux/source/grp.cpp b/iceoryx_platform/linux/source/grp.cpp
index 250a2f3c8e..e9f01673f2 100644
--- a/iceoryx_platform/linux/source/grp.cpp
+++ b/iceoryx_platform/linux/source/grp.cpp
@@ -17,7 +17,7 @@
 #include "iceoryx_platform/grp.hpp"
 
 // NOLINTNEXTLINE(readability-function-size,readability-identifier-naming)
-int iox_getgrouplist(const char* user, gid_t group, gid_t* groups, int* ngroups)
+int iox_getgrouplist(const char* user, iox_gid_t group, iox_gid_t* groups, int* ngroups)
 {
     return getgrouplist(user, group, groups, ngroups);
 }
diff --git a/iceoryx_platform/linux/source/unistd.cpp b/iceoryx_platform/linux/source/unistd.cpp
index 1ce62b9ed8..391668ce93 100644
--- a/iceoryx_platform/linux/source/unistd.cpp
+++ b/iceoryx_platform/linux/source/unistd.cpp
@@ -18,6 +18,16 @@
 #include "iceoryx_platform/unistd.hpp"
 
 // NOLINTNEXTLINE(readability-identifier-naming)
+int iox_ftruncate(int fildes, off_t length)
+{
+    return ftruncate(fildes, length);
+}
+
+long iox_sysconf(int name)
+{
+    return sysconf(name);
+}
+
 int iox_close(int fd)
 {
     return close(fd);
@@ -28,7 +38,7 @@ int iox_ext_close(int fd)
     return close(fd);
 }
 
-int iox_fchown(int fd, uid_t owner, gid_t group)
+int iox_fchown(int fd, iox_uid_t owner, iox_gid_t group)
 {
     return fchown(fd, owner, group);
 }
@@ -57,3 +67,13 @@ iox_ssize_t iox_write(int fd, const void* buf, size_t count)
 {
     return write(fd, buf, count);
 }
+
+iox_gid_t iox_getgid(void)
+{
+    return getgid();
+}
+
+iox_uid_t iox_geteuid(void)
+{
+    return geteuid();
+}
diff --git a/iceoryx_platform/mac/include/iceoryx_platform/grp.hpp b/iceoryx_platform/mac/include/iceoryx_platform/grp.hpp
index be1ff9ddd0..7a562c137f 100644
--- a/iceoryx_platform/mac/include/iceoryx_platform/grp.hpp
+++ b/iceoryx_platform/mac/include/iceoryx_platform/grp.hpp
@@ -17,9 +17,11 @@
 #ifndef IOX_HOOFS_MAC_PLATFORM_GRP_HPP
 #define IOX_HOOFS_MAC_PLATFORM_GRP_HPP
 
+#include "iceoryx_platform/types.hpp"
+
 #include <grp.h>
 #include <unistd.h>
 
-int iox_getgrouplist(const char* user, gid_t group, gid_t* groups, int* ngroups);
+int iox_getgrouplist(const char* user, iox_gid_t group, iox_gid_t* groups, int* ngroups);
 
 #endif // IOX_HOOFS_MAC_PLATFORM_GRP_HPP
diff --git a/iceoryx_platform/mac/include/iceoryx_platform/types.hpp b/iceoryx_platform/mac/include/iceoryx_platform/types.hpp
index f663a6bafa..0c3929f71a 100644
--- a/iceoryx_platform/mac/include/iceoryx_platform/types.hpp
+++ b/iceoryx_platform/mac/include/iceoryx_platform/types.hpp
@@ -19,4 +19,7 @@
 
 #include <sys/types.h>
 
+using iox_gid_t = gid_t;
+using iox_uid_t = uid_t;
+
 #endif // IOX_HOOFS_MAC_PLATFORM_TYPES_HPP
diff --git a/iceoryx_platform/mac/include/iceoryx_platform/unistd.hpp b/iceoryx_platform/mac/include/iceoryx_platform/unistd.hpp
index 81c592b917..6b7947f2b9 100644
--- a/iceoryx_platform/mac/include/iceoryx_platform/unistd.hpp
+++ b/iceoryx_platform/mac/include/iceoryx_platform/unistd.hpp
@@ -17,19 +17,32 @@
 #ifndef IOX_HOOFS_MAC_PLATFORM_UNISTD_HPP
 #define IOX_HOOFS_MAC_PLATFORM_UNISTD_HPP
 
+#include "iceoryx_platform/types.hpp"
+
 #include <unistd.h>
 
 #define IOX_SEEK_SET SEEK_SET
+#define IOX_SC_PAGESIZE _SC_PAGESIZE
+
 using iox_off_t = off_t;
 using iox_ssize_t = ssize_t;
 
+#define IOX_F_OK F_OK
+#define IOX_X_OK X_OK
+#define IOX_W_OK W_OK
+#define IOX_R_OK R_OK
+
+int iox_ftruncate(int fildes, off_t length);
+long iox_sysconf(int name);
 int iox_close(int fd);
 int iox_ext_close(int fd);
-int iox_fchown(int fd, uid_t owner, gid_t group);
+int iox_fchown(int fd, iox_uid_t owner, iox_gid_t group);
 int iox_access(const char* pathname, int mode);
 int iox_unlink(const char* pathname);
 iox_off_t iox_lseek(int fd, iox_off_t offset, int whence);
 iox_ssize_t iox_read(int fd, void* buf, size_t count);
 iox_ssize_t iox_write(int fd, const void* buf, size_t count);
+iox_gid_t iox_getgid(void);
+iox_uid_t iox_geteuid(void);
 
 #endif // IOX_HOOFS_MAC_PLATFORM_UNISTD_HPP
diff --git a/iceoryx_platform/mac/source/grp.cpp b/iceoryx_platform/mac/source/grp.cpp
index 9502717f7a..80de309c4a 100644
--- a/iceoryx_platform/mac/source/grp.cpp
+++ b/iceoryx_platform/mac/source/grp.cpp
@@ -16,7 +16,7 @@
 
 #include "iceoryx_platform/grp.hpp"
 
-int iox_getgrouplist(const char* user, gid_t group, gid_t* groups, int* ngroups)
+int iox_getgrouplist(const char* user, iox_gid_t group, iox_gid_t* groups, int* ngroups)
 {
     return getgrouplist(user, static_cast<int>(group), reinterpret_cast<int*>(groups), ngroups);
 }
diff --git a/iceoryx_platform/mac/source/unistd.cpp b/iceoryx_platform/mac/source/unistd.cpp
index 770ff909ca..ba1d685fbe 100644
--- a/iceoryx_platform/mac/source/unistd.cpp
+++ b/iceoryx_platform/mac/source/unistd.cpp
@@ -17,6 +17,16 @@
 
 #include "iceoryx_platform/unistd.hpp"
 
+int iox_ftruncate(int fildes, off_t length)
+{
+    return ftruncate(fildes, length);
+}
+
+long iox_sysconf(int name)
+{
+    return sysconf(name);
+}
+
 int iox_close(int fd)
 {
     return close(fd);
@@ -27,7 +37,7 @@ int iox_ext_close(int fd)
     return close(fd);
 }
 
-int iox_fchown(int fd, uid_t owner, gid_t group)
+int iox_fchown(int fd, iox_uid_t owner, iox_gid_t group)
 {
     return fchown(fd, owner, group);
 }
@@ -56,3 +66,13 @@ iox_ssize_t iox_write(int fd, const void* buf, size_t count)
 {
     return write(fd, buf, count);
 }
+
+iox_gid_t iox_getgid(void)
+{
+    return getgid();
+}
+
+iox_uid_t iox_geteuid(void)
+{
+    return geteuid();
+}
diff --git a/iceoryx_platform/qnx/include/iceoryx_platform/grp.hpp b/iceoryx_platform/qnx/include/iceoryx_platform/grp.hpp
index dc425629ec..98851edbeb 100644
--- a/iceoryx_platform/qnx/include/iceoryx_platform/grp.hpp
+++ b/iceoryx_platform/qnx/include/iceoryx_platform/grp.hpp
@@ -17,9 +17,10 @@
 #ifndef IOX_HOOFS_QNX_PLATFORM_GRP_HPP
 #define IOX_HOOFS_QNX_PLATFORM_GRP_HPP
 
+#include "iceoryx_platform/types.hpp"
+
 #include <grp.h>
-#include <unistd.h>
 
-int iox_getgrouplist(const char* user, gid_t group, gid_t* groups, int* ngroups);
+int iox_getgrouplist(const char* user, iox_gid_t group, iox_gid_t* groups, int* ngroups);
 
-#endif // IOX_HOOFS_QNX_PLATFORM_GRP_HPP
\ No newline at end of file
+#endif // IOX_HOOFS_QNX_PLATFORM_GRP_HPP
diff --git a/iceoryx_platform/qnx/include/iceoryx_platform/types.hpp b/iceoryx_platform/qnx/include/iceoryx_platform/types.hpp
index d9bdad0271..b90aa4b9ea 100644
--- a/iceoryx_platform/qnx/include/iceoryx_platform/types.hpp
+++ b/iceoryx_platform/qnx/include/iceoryx_platform/types.hpp
@@ -19,4 +19,7 @@
 
 #include <sys/types.h>
 
+using iox_gid_t = gid_t;
+using iox_uid_t = uid_t;
+
 #endif // IOX_HOOFS_QNX_PLATFORM_TYPES_HPP
diff --git a/iceoryx_platform/qnx/include/iceoryx_platform/unistd.hpp b/iceoryx_platform/qnx/include/iceoryx_platform/unistd.hpp
index 06bf696c0c..2a699e5b31 100644
--- a/iceoryx_platform/qnx/include/iceoryx_platform/unistd.hpp
+++ b/iceoryx_platform/qnx/include/iceoryx_platform/unistd.hpp
@@ -17,19 +17,32 @@
 #ifndef IOX_HOOFS_QNX_PLATFORM_UNISTD_HPP
 #define IOX_HOOFS_QNX_PLATFORM_UNISTD_HPP
 
+#include "iceoryx_platform/types.hpp"
+
 #include <unistd.h>
 
 #define IOX_SEEK_SET SEEK_SET
+#define IOX_SC_PAGESIZE _SC_PAGESIZE
+
 using iox_off_t = off_t;
 using iox_ssize_t = ssize_t;
 
+#define IOX_F_OK F_OK
+#define IOX_X_OK X_OK
+#define IOX_W_OK W_OK
+#define IOX_R_OK R_OK
+
+int iox_ftruncate(int fildes, off_t length);
+long iox_sysconf(int name);
 int iox_close(int fd);
 int iox_ext_close(int fd);
-int iox_fchown(int fd, uid_t owner, gid_t group);
+int iox_fchown(int fd, iox_uid_t owner, iox_gid_t group);
 int iox_access(const char* pathname, int mode);
 int iox_unlink(const char* pathname);
 iox_off_t iox_lseek(int fd, iox_off_t offset, int whence);
 iox_ssize_t iox_read(int fd, void* buf, size_t count);
 iox_ssize_t iox_write(int fd, const void* buf, size_t count);
+iox_gid_t iox_getgid(void);
+iox_uid_t iox_geteuid(void);
 
 #endif // IOX_HOOFS_QNX_PLATFORM_UNISTD_HPP
diff --git a/iceoryx_platform/qnx/source/grp.cpp b/iceoryx_platform/qnx/source/grp.cpp
index be498c9b1a..8727ec52c0 100644
--- a/iceoryx_platform/qnx/source/grp.cpp
+++ b/iceoryx_platform/qnx/source/grp.cpp
@@ -16,7 +16,7 @@
 
 #include "iceoryx_platform/grp.hpp"
 
-int iox_getgrouplist(const char* user, gid_t group, gid_t* groups, int* ngroups)
+int iox_getgrouplist(const char* user, iox_gid_t group, iox_gid_t* groups, int* ngroups)
 {
     return getgrouplist(user, group, groups, ngroups);
 }
diff --git a/iceoryx_platform/qnx/source/unistd.cpp b/iceoryx_platform/qnx/source/unistd.cpp
index 770ff909ca..ba1d685fbe 100644
--- a/iceoryx_platform/qnx/source/unistd.cpp
+++ b/iceoryx_platform/qnx/source/unistd.cpp
@@ -17,6 +17,16 @@
 
 #include "iceoryx_platform/unistd.hpp"
 
+int iox_ftruncate(int fildes, off_t length)
+{
+    return ftruncate(fildes, length);
+}
+
+long iox_sysconf(int name)
+{
+    return sysconf(name);
+}
+
 int iox_close(int fd)
 {
     return close(fd);
@@ -27,7 +37,7 @@ int iox_ext_close(int fd)
     return close(fd);
 }
 
-int iox_fchown(int fd, uid_t owner, gid_t group)
+int iox_fchown(int fd, iox_uid_t owner, iox_gid_t group)
 {
     return fchown(fd, owner, group);
 }
@@ -56,3 +66,13 @@ iox_ssize_t iox_write(int fd, const void* buf, size_t count)
 {
     return write(fd, buf, count);
 }
+
+iox_gid_t iox_getgid(void)
+{
+    return getgid();
+}
+
+iox_uid_t iox_geteuid(void)
+{
+    return geteuid();
+}
diff --git a/iceoryx_platform/unix/include/iceoryx_platform/grp.hpp b/iceoryx_platform/unix/include/iceoryx_platform/grp.hpp
index b94df72d2a..7dee5ee00c 100644
--- a/iceoryx_platform/unix/include/iceoryx_platform/grp.hpp
+++ b/iceoryx_platform/unix/include/iceoryx_platform/grp.hpp
@@ -17,8 +17,10 @@
 #ifndef IOX_HOOFS_UNIX_PLATFORM_GRP_HPP
 #define IOX_HOOFS_UNIX_PLATFORM_GRP_HPP
 
+#include "iceoryx_platform/types.hpp"
+
 #include <grp.h>
 
-int iox_getgrouplist(const char* user, gid_t group, gid_t* groups, int* ngroups);
+int iox_getgrouplist(const char* user, iox_gid_t group, iox_gid_t* groups, int* ngroups);
 
 #endif // IOX_HOOFS_UNIX_PLATFORM_GRP_HPP
diff --git a/iceoryx_platform/unix/include/iceoryx_platform/types.hpp b/iceoryx_platform/unix/include/iceoryx_platform/types.hpp
index f6fb9678c9..612942deab 100644
--- a/iceoryx_platform/unix/include/iceoryx_platform/types.hpp
+++ b/iceoryx_platform/unix/include/iceoryx_platform/types.hpp
@@ -19,4 +19,7 @@
 
 #include <sys/types.h>
 
+using iox_gid_t = gid_t;
+using iox_uid_t = uid_t;
+
 #endif // IOX_HOOFS_UNIX_PLATFORM_TYPES_HPP
diff --git a/iceoryx_platform/unix/include/iceoryx_platform/unistd.hpp b/iceoryx_platform/unix/include/iceoryx_platform/unistd.hpp
index 738cba7d44..cd4b959c3a 100644
--- a/iceoryx_platform/unix/include/iceoryx_platform/unistd.hpp
+++ b/iceoryx_platform/unix/include/iceoryx_platform/unistd.hpp
@@ -17,19 +17,32 @@
 #ifndef IOX_HOOFS_UNIX_PLATFORM_UNISTD_HPP
 #define IOX_HOOFS_UNIX_PLATFORM_UNISTD_HPP
 
+#include "iceoryx_platform/types.hpp"
+
 #include <unistd.h>
 
 #define IOX_SEEK_SET SEEK_SET
+#define IOX_SC_PAGESIZE _SC_PAGESIZE
+
 using iox_off_t = off_t;
 using iox_ssize_t = ssize_t;
 
+#define IOX_F_OK F_OK
+#define IOX_X_OK X_OK
+#define IOX_W_OK W_OK
+#define IOX_R_OK R_OK
+
+int iox_ftruncate(int fildes, off_t length);
+long iox_sysconf(int name);
 int iox_close(int fd);
 int iox_ext_close(int fd);
-int iox_fchown(int fd, uid_t owner, gid_t group);
+int iox_fchown(int fd, iox_uid_t owner, iox_gid_t group);
 int iox_access(const char* pathname, int mode);
 int iox_unlink(const char* pathname);
 iox_off_t iox_lseek(int fd, iox_off_t offset, int whence);
 iox_ssize_t iox_read(int fd, void* buf, size_t count);
 iox_ssize_t iox_write(int fd, const void* buf, size_t count);
+iox_gid_t iox_getgid(void);
+iox_uid_t iox_geteuid(void);
 
 #endif // IOX_HOOFS_UNIX_PLATFORM_UNISTD_HPP
diff --git a/iceoryx_platform/unix/source/grp.cpp b/iceoryx_platform/unix/source/grp.cpp
index c92b8579f1..e9f01673f2 100644
--- a/iceoryx_platform/unix/source/grp.cpp
+++ b/iceoryx_platform/unix/source/grp.cpp
@@ -15,10 +15,9 @@
 // SPDX-License-Identifier: Apache-2.0
 
 #include "iceoryx_platform/grp.hpp"
-#include <unistd.h>
 
 // NOLINTNEXTLINE(readability-function-size,readability-identifier-naming)
-int iox_getgrouplist(const char* user, gid_t group, gid_t* groups, int* ngroups)
+int iox_getgrouplist(const char* user, iox_gid_t group, iox_gid_t* groups, int* ngroups)
 {
     return getgrouplist(user, group, groups, ngroups);
 }
diff --git a/iceoryx_platform/unix/source/unistd.cpp b/iceoryx_platform/unix/source/unistd.cpp
index 1ce62b9ed8..391668ce93 100644
--- a/iceoryx_platform/unix/source/unistd.cpp
+++ b/iceoryx_platform/unix/source/unistd.cpp
@@ -18,6 +18,16 @@
 #include "iceoryx_platform/unistd.hpp"
 
 // NOLINTNEXTLINE(readability-identifier-naming)
+int iox_ftruncate(int fildes, off_t length)
+{
+    return ftruncate(fildes, length);
+}
+
+long iox_sysconf(int name)
+{
+    return sysconf(name);
+}
+
 int iox_close(int fd)
 {
     return close(fd);
@@ -28,7 +38,7 @@ int iox_ext_close(int fd)
     return close(fd);
 }
 
-int iox_fchown(int fd, uid_t owner, gid_t group)
+int iox_fchown(int fd, iox_uid_t owner, iox_gid_t group)
 {
     return fchown(fd, owner, group);
 }
@@ -57,3 +67,13 @@ iox_ssize_t iox_write(int fd, const void* buf, size_t count)
 {
     return write(fd, buf, count);
 }
+
+iox_gid_t iox_getgid(void)
+{
+    return getgid();
+}
+
+iox_uid_t iox_geteuid(void)
+{
+    return geteuid();
+}
diff --git a/iceoryx_platform/win/include/iceoryx_platform/grp.hpp b/iceoryx_platform/win/include/iceoryx_platform/grp.hpp
index f6a34b3535..b03682681b 100644
--- a/iceoryx_platform/win/include/iceoryx_platform/grp.hpp
+++ b/iceoryx_platform/win/include/iceoryx_platform/grp.hpp
@@ -17,21 +17,16 @@
 #ifndef IOX_HOOFS_WIN_PLATFORM_GRP_HPP
 #define IOX_HOOFS_WIN_PLATFORM_GRP_HPP
 
-#include "iceoryx_platform/grp.hpp"
+#include "iceoryx_platform/types.hpp"
 
 struct group
 {
     const char* gr_name;
     const char* gr_passwd;
-    gid_t gr_gid;
+    iox_gid_t gr_gid;
     const char** gr_mem;
 };
 
-inline gid_t getegid(void)
-{
-    return 0;
-}
-
 inline struct group* getgrnam(const char* name)
 {
     static const char* groupName = "iceoryx_windows_group";
@@ -44,7 +39,7 @@ inline struct group* getgrnam(const char* name)
     return &dummy;
 }
 
-inline struct group* getgrgid(gid_t gid)
+inline struct group* getgrgid(iox_gid_t gid)
 {
     static const char* groupName = "iceoryx_windows_group";
     static const char* groupPasswd = "iceoryx_windows_passwd";
@@ -56,7 +51,7 @@ inline struct group* getgrgid(gid_t gid)
     return &dummy;
 }
 
-inline int iox_getgrouplist(const char* user, gid_t group, gid_t* groups, int* ngroups)
+inline int iox_getgrouplist(const char* user, iox_gid_t group, iox_gid_t* groups, int* ngroups)
 {
     groups[0] = 0;
     *ngroups = 1;
diff --git a/iceoryx_platform/win/include/iceoryx_platform/pwd.hpp b/iceoryx_platform/win/include/iceoryx_platform/pwd.hpp
index b32fe60634..a10e60ff40 100644
--- a/iceoryx_platform/win/include/iceoryx_platform/pwd.hpp
+++ b/iceoryx_platform/win/include/iceoryx_platform/pwd.hpp
@@ -23,8 +23,8 @@ struct passwd
 {
     const char* pw_name;
     const char* pw_passwd;
-    uid_t pw_uid;
-    gid_t pw_gid;
+    iox_uid_t pw_uid;
+    iox_gid_t pw_gid;
     const char* pw_gecos;
     const char* pw_dir;
     const char* pw_shell;
@@ -45,7 +45,7 @@ inline struct passwd* getpwnam(const char* name)
     return &dummy;
 }
 
-inline struct passwd* getpwuid(uid_t uid)
+inline struct passwd* getpwuid(iox_uid_t uid)
 {
     static const char* value = "iceoryx_windows_dummy";
     static struct passwd dummy;
@@ -59,9 +59,4 @@ inline struct passwd* getpwuid(uid_t uid)
     return &dummy;
 }
 
-inline uid_t geteuid()
-{
-    return 0;
-}
-
 #endif // IOX_HOOFS_WIN_PLATFORM_PWD_HPP
diff --git a/iceoryx_platform/win/include/iceoryx_platform/types.hpp b/iceoryx_platform/win/include/iceoryx_platform/types.hpp
index f017c373cd..4cd6937c6a 100644
--- a/iceoryx_platform/win/include/iceoryx_platform/types.hpp
+++ b/iceoryx_platform/win/include/iceoryx_platform/types.hpp
@@ -19,8 +19,8 @@
 
 #include <sys/types.h>
 
-using gid_t = int;
-using uid_t = int;
+using iox_gid_t = int;
+using iox_uid_t = int;
 #if defined(_MSC_VER)
 using mode_t = int;
 using ssize_t = size_t;
diff --git a/iceoryx_platform/win/include/iceoryx_platform/unistd.hpp b/iceoryx_platform/win/include/iceoryx_platform/unistd.hpp
index 9b8e6dc304..c4719fd4cf 100644
--- a/iceoryx_platform/win/include/iceoryx_platform/unistd.hpp
+++ b/iceoryx_platform/win/include/iceoryx_platform/unistd.hpp
@@ -26,7 +26,7 @@
 #include <vector>
 
 #define IOX_SEEK_SET SEEK_SET
-#define _SC_PAGESIZE 1
+#define IOX_SC_PAGESIZE 1
 #ifndef STDOUT_FILENO
 #define STDOUT_FILENO 1
 #endif
@@ -34,25 +34,25 @@
 #define STDERR_FILENO 2
 #endif
 
-using uid_t = int;
-using gid_t = int;
 using iox_off_t = long;
 using iox_ssize_t = int;
 
-#define F_OK 0
-#define W_OK 2
-#define R_OK 4
+#define IOX_F_OK 0
+#define IOX_X_OK 1
+#define IOX_W_OK 2
+#define IOX_R_OK 4
 
-int ftruncate(int fildes, off_t length);
-long sysconf(int name);
+int iox_ftruncate(int fildes, off_t length);
+long iox_sysconf(int name);
 int iox_close(int fd);
 int iox_ext_close(int fd);
-int iox_fchown(int fd, uid_t owner, gid_t group);
+int iox_fchown(int fd, iox_uid_t owner, iox_gid_t group);
 int iox_access(const char* pathname, int mode);
 int iox_unlink(const char* pathname);
 iox_off_t iox_lseek(int fd, iox_off_t offset, int whence);
 iox_ssize_t iox_read(int fd, void* buf, size_t count);
 iox_ssize_t iox_write(int fd, const void* buf, size_t count);
-gid_t getgid();
+iox_gid_t iox_getgid(void);
+iox_uid_t iox_geteuid(void);
 
 #endif // IOX_HOOFS_WIN_PLATFORM_UNISTD_HPP
diff --git a/iceoryx_platform/win/source/unistd.cpp b/iceoryx_platform/win/source/unistd.cpp
index 194ad29e8a..534801fe63 100644
--- a/iceoryx_platform/win/source/unistd.cpp
+++ b/iceoryx_platform/win/source/unistd.cpp
@@ -20,7 +20,7 @@
 #include "iceoryx_platform/mman.hpp"
 #include "iceoryx_platform/win32_errorHandling.hpp"
 
-int ftruncate(int fildes, off_t length)
+int iox_ftruncate(int fildes, off_t length)
 {
     internal_iox_shm_set_size(fildes, length);
     return 0;
@@ -36,9 +36,9 @@ int iox_unlink(const char* pathname)
     return _unlink(pathname);
 }
 
-long sysconf(int name)
+long iox_sysconf(int name)
 {
-    if (name == _SC_PAGESIZE)
+    if (name == IOX_SC_PAGESIZE)
     {
         SYSTEM_INFO systemInfo;
         GetSystemInfo(&systemInfo);
@@ -69,7 +69,7 @@ int iox_ext_close(int fd)
     return 0;
 }
 
-int iox_fchown(int fd, uid_t owner, gid_t group)
+int iox_fchown(int fd, iox_uid_t owner, iox_gid_t group)
 {
     return 0;
 }
@@ -89,7 +89,12 @@ iox_ssize_t iox_write(int fd, const void* buf, size_t count)
     return _write(fd, buf, count);
 }
 
-gid_t getgid()
+iox_gid_t iox_getgid(void)
+{
+    return 0;
+}
+
+iox_uid_t iox_geteuid(void)
 {
     return 0;
 }
diff --git a/iceoryx_posh/include/iceoryx_posh/internal/roudi/roudi.hpp b/iceoryx_posh/include/iceoryx_posh/internal/roudi/roudi.hpp
index bc5656ed45..57b8e1303b 100644
--- a/iceoryx_posh/include/iceoryx_posh/internal/roudi/roudi.hpp
+++ b/iceoryx_posh/include/iceoryx_posh/internal/roudi/roudi.hpp
@@ -76,7 +76,7 @@ class RouDi
 
     version::VersionInfo parseRegisterMessage(const runtime::IpcMessage& message,
                                               uint32_t& pid,
-                                              uid_t& userId,
+                                              iox_uid_t& userId,
                                               int64_t& transmissionTimestamp) noexcept;
 
     /// @brief Handles the registration request from process
diff --git a/iceoryx_posh/source/roudi/roudi.cpp b/iceoryx_posh/source/roudi/roudi.cpp
index e76bf1df5e..2289913c59 100644
--- a/iceoryx_posh/source/roudi/roudi.cpp
+++ b/iceoryx_posh/source/roudi/roudi.cpp
@@ -270,7 +270,7 @@ void RouDi::processRuntimeMessages(runtime::IpcInterfaceCreator&& roudiIpcInterf
 
 version::VersionInfo RouDi::parseRegisterMessage(const runtime::IpcMessage& message,
                                                  uint32_t& pid,
-                                                 uid_t& userId,
+                                                 iox_uid_t& userId,
                                                  int64_t& transmissionTimestamp) noexcept
 {
     convert::from_string<uint32_t>(message.getElementAtIndex(2).c_str()).and_then([&pid](const auto value) {
@@ -319,7 +319,7 @@ void RouDi::processMessage(const runtime::IpcMessage& message,
         else
         {
             uint32_t pid{0U};
-            uid_t userId{0};
+            iox_uid_t userId{0};
             int64_t transmissionTimestamp{0};
             version::VersionInfo versionInfo = parseRegisterMessage(message, pid, userId, transmissionTimestamp);