[Minios-devel] [UNIKRAFT PATCH 3/3] lib/ukunistd: Add user.h for user related functions declarations

[Costin Lupu <costin.lupu@xxxxxxxxx>]

We currently declare only those functions that are not declared by newlib. Later
on, we might apply the same solution we did for time related functions:
providing our own headers for user related functions as well.

Signed-off-by: Costin Lupu <costin.lupu@xxxxxxxxx>
---
 lib/ukunistd/Makefile.uk       |  2 ++
 lib/ukunistd/include/uk/user.h | 54 ++++++++++++++++++++++++++++++++++
 lib/ukunistd/user.c            |  1 +
 3 files changed, 57 insertions(+)
 create mode 100644 lib/ukunistd/include/uk/user.h

diff --git a/lib/ukunistd/Makefile.uk b/lib/ukunistd/Makefile.uk
index 3c7a8229..abdbbcd8 100644
--- a/lib/ukunistd/Makefile.uk
+++ b/lib/ukunistd/Makefile.uk
@@ -1,3 +1,5 @@
 $(eval $(call addlib_s,ukunistd,$(CONFIG_UKUNISTD)))
 
+CINCLUDES-y   += -I$(UKUNISTD_BASE)/include
+CXXINCLUDES-y += -I$(UKUNISTD_BASE)/include
 UKUNISTD_SRCS-$(CONFIG_UKUNISTD) += $(UKUNISTD_BASE)/user.c
diff --git a/lib/ukunistd/include/uk/user.h b/lib/ukunistd/include/uk/user.h
new file mode 100644
index 00000000..9c72bc0f
--- /dev/null
+++ b/lib/ukunistd/include/uk/user.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+ * Authors: Costin Lupu <costin.lupu@xxxxxxxxx>
+ *
+ * Copyright (c) 2019, University Politehnica of Bucharest. All rights 
reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
+ */
+
+#ifndef __UK_USER_H__
+#define __UK_USER_H__
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define __NEED_uid_t
+#define __NEED_gid_t
+#include <sys/types.h>
+
+int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid);
+int setresuid(uid_t ruid, uid_t euid, uid_t suid);
+
+int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid);
+int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* __UK_USER_H__ */
diff --git a/lib/ukunistd/user.c b/lib/ukunistd/user.c
index 428cfcf9..4134d6b7 100644
--- a/lib/ukunistd/user.c
+++ b/lib/ukunistd/user.c
@@ -39,6 +39,7 @@
 #include <sys/types.h>
 #include <uk/essentials.h>
 #include <uk/list.h>
+#include <uk/user.h>
 
 static struct passwd_entry {
        struct passwd *passwd;
-- 
2.20.1


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