ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/tools/testing/selftests/proc/fd-002-posix-eq.c b/marvell/linux/tools/testing/selftests/proc/fd-002-posix-eq.c
new file mode 100644
index 0000000..417322c
--- /dev/null
+++ b/marvell/linux/tools/testing/selftests/proc/fd-002-posix-eq.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+// Test that open(/proc/*/fd/*) opens the same file.
+#undef NDEBUG
+#include <assert.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+int main(void)
+{
+ int fd0, fd1, fd2;
+ struct stat st0, st1, st2;
+ char buf[64];
+ int rv;
+
+ fd0 = open("/", O_DIRECTORY|O_RDONLY);
+ assert(fd0 >= 0);
+
+ snprintf(buf, sizeof(buf), "/proc/self/fd/%u", fd0);
+ fd1 = open(buf, O_RDONLY);
+ assert(fd1 >= 0);
+
+ snprintf(buf, sizeof(buf), "/proc/thread-self/fd/%u", fd0);
+ fd2 = open(buf, O_RDONLY);
+ assert(fd2 >= 0);
+
+ rv = fstat(fd0, &st0);
+ assert(rv == 0);
+ rv = fstat(fd1, &st1);
+ assert(rv == 0);
+ rv = fstat(fd2, &st2);
+ assert(rv == 0);
+
+ assert(st0.st_dev == st1.st_dev);
+ assert(st0.st_ino == st1.st_ino);
+
+ assert(st0.st_dev == st2.st_dev);
+ assert(st0.st_ino == st2.st_ino);
+
+ return 0;
+}