* sysdeps/unix/sysv/linux/syscalls.list: Add __pipe2 alias.

	* io/pipe2.c: Likewise.
	* sysdeps/unix/sysv/linux/kernel-features.h: Define __ASSUME_PIPE2
	instead of __ASSUME_PACCEPT.
	* include/unistd.h: Declare __have_pipe2.
	* libio/iopopen.c: Implement "e" flag.
	* libio/Makefile (tests): Add tst-popen1.
	* libio/tst-popen1.c: New file.

1 files changed, 49 insertions, 0 deletions

diff --git a/libio/tst-popen1.c b/libio/tst-popen1.c
new file mode 100644
index 0000000..bae6615
--- /dev/null
+++ b/libio/tst-popen1.c
@@ -0,0 +1,49 @@
+#include <fcntl.h>
+#include <stdio.h>
+
+static int
+do_test (void)
+{
+  int res = 0;
+
+  FILE *fp = popen ("echo hello", "r");
+  if (fp == NULL)
+    {
+      puts ("first popen failed");
+      res = 1;
+    }
+  else
+    {
+      int fd = fileno (fp);
+      if (fcntl (fd, F_GETFD) == FD_CLOEXEC)
+	{
+	  puts ("first popen(\"r\") set FD_CLOEXEC");
+	  res = 1;
+	}
+
+      fclose (fp);
+    }
+
+  fp = popen ("echo hello", "re");
+  if (fp == NULL)
+    {
+      puts ("second popen failed");
+      res = 1;
+    }
+  else
+    {
+      int fd = fileno (fp);
+      if (fcntl (fd, F_GETFD) != FD_CLOEXEC)
+	{
+	  puts ("second popen(\"r\") did not set FD_CLOEXEC");
+	  res = 1;
+	}
+
+      fclose (fp);
+    }
+
+  return res;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"