From: "Paul E. McKenney" <[email protected]>
To: [email protected]
Cc: [email protected], [email protected], [email protected],
Willy Tarreau <[email protected]>,
"Paul E . McKenney" <[email protected]>
Subject: [PATCH nolibc 07/14] tools/nolibc: add getuid() and geteuid()
Date: Mon, 20 Mar 2023 18:11:30 -0700 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <6a3206d0-e5cd-4990-9604-444a24a8207c@paulmck-laptop>
From: Willy Tarreau <[email protected]>
This can be useful to avoid attempting some privileged operations,
starting from the nolibc-test tool that gets two failures when not
privileged.
We call getuid32() and geteuid32() when they are defined, and fall
back to getuid() and geteuid() otherwise.
Signed-off-by: Willy Tarreau <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
---
tools/include/nolibc/sys.h | 42 ++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h
index b5f8cd35c03b..115579e7f1db 100644
--- a/tools/include/nolibc/sys.h
+++ b/tools/include/nolibc/sys.h
@@ -410,6 +410,27 @@ int getdents64(int fd, struct linux_dirent64 *dirp, int count)
}
+/*
+ * uid_t geteuid(void);
+ */
+
+static __attribute__((unused))
+uid_t sys_geteuid(void)
+{
+#ifdef __NR_geteuid32
+ return my_syscall0(__NR_geteuid32);
+#else
+ return my_syscall0(__NR_geteuid);
+#endif
+}
+
+static __attribute__((unused))
+uid_t geteuid(void)
+{
+ return sys_geteuid();
+}
+
+
/*
* pid_t getpgid(pid_t pid);
*/
@@ -544,6 +565,27 @@ int gettimeofday(struct timeval *tv, struct timezone *tz)
}
+/*
+ * uid_t getuid(void);
+ */
+
+static __attribute__((unused))
+uid_t sys_getuid(void)
+{
+#ifdef __NR_getuid32
+ return my_syscall0(__NR_getuid32);
+#else
+ return my_syscall0(__NR_getuid);
+#endif
+}
+
+static __attribute__((unused))
+uid_t getuid(void)
+{
+ return sys_getuid();
+}
+
+
/*
* int ioctl(int fd, unsigned long req, void *value);
*/
--
2.40.0.rc2
next prev parent reply other threads:[~2023-03-21 1:11 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-21 1:11 [PATCH nolibc 0/14] nolibc updates for v6.4 Paul E. McKenney
2023-03-21 1:11 ` [PATCH nolibc 01/14] tools/nolibc: always disable stack protector for tests Paul E. McKenney
2023-03-21 1:11 ` [PATCH nolibc 02/14] tools/nolibc: Add gitignore to avoid git complaints about sysroot Paul E. McKenney
2023-03-21 1:11 ` [PATCH nolibc 03/14] tools/nolibc: add stdint.h Paul E. McKenney
2023-03-21 1:11 ` [PATCH nolibc 04/14] tools/nolibc: add integer types and integer limit macros Paul E. McKenney
2023-03-21 1:11 ` [PATCH nolibc 05/14] tools/nolibc: enlarge column width of tests Paul E. McKenney
2023-03-21 1:11 ` [PATCH nolibc 06/14] tools/nolibc: add tests for the integer limits in stdint.h Paul E. McKenney
2023-03-21 1:11 ` Paul E. McKenney [this message]
2023-03-21 1:11 ` [PATCH nolibc 08/14] selftests/nolibc: skip the chroot_root and link_dir tests when not privileged Paul E. McKenney
2023-03-21 1:11 ` [PATCH nolibc 09/14] tools/nolibc: check for S_I* macros before defining them Paul E. McKenney
2023-03-21 1:11 ` [PATCH nolibc 10/14] tools/nolibc: Include linux/fcntl.h and remove duplicate code Paul E. McKenney
2023-03-21 1:11 ` [PATCH nolibc 11/14] tools/nolibc: Add statx() and make stat() rely on statx() if necessary Paul E. McKenney
2023-03-21 1:11 ` [PATCH nolibc 12/14] tools/nolibc: Add support for LoongArch Paul E. McKenney
2023-03-21 1:11 ` [PATCH nolibc 13/14] selftests/nolibc: " Paul E. McKenney
2023-03-21 1:11 ` [PATCH nolibc 14/14] selftests/nolibc: Adjust indentation for Makefile Paul E. McKenney
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