#include "config.h"
#undef _LIBC
-#define test_parent test_parent_tunables
-#define test_child test_child_tunables
-
-static int test_child_tunables (void);
-static int test_parent_tunables (void);
-
-#include "tst-env-setuid.c"
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <intprops.h>
+#include <array_length.h>
+
+#include <support/check.h>
+#include <support/support.h>
+#include <support/test-driver.h>
+#include <support/capture_subprocess.h>
+
+const char *teststrings[] =
+{
+ "glibc.malloc.check=2:glibc.malloc.mmap_threshold=4096",
+};
-#define CHILD_VALSTRING_VALUE "glibc.malloc.mmap_threshold=4096"
-#define PARENT_VALSTRING_VALUE \
- "glibc.malloc.check=2:glibc.malloc.mmap_threshold=4096"
+const char *resultstrings[] =
+{
+ "glibc.malloc.mmap_threshold=4096",
+};
static int
-test_child_tunables (void)
+test_child (int off)
{
const char *val = getenv ("GLIBC_TUNABLES");
#if HAVE_TUNABLES
- if (val != NULL && strcmp (val, CHILD_VALSTRING_VALUE) == 0)
+ if (val != NULL && strcmp (val, resultstrings[off]) == 0)
return 0;
if (val != NULL)
- printf ("Unexpected GLIBC_TUNABLES VALUE %s\n", val);
+ printf ("[%d] Unexpected GLIBC_TUNABLES VALUE %s\n", off, val);
return 1;
#else
if (val != NULL)
{
- printf ("GLIBC_TUNABLES not cleared\n");
+ printf ("[%d] GLIBC_TUNABLES not cleared\n", off);
return 1;
}
return 0;
}
static int
-test_parent_tunables (void)
+do_test (int argc, char **argv)
{
- const char *val = getenv ("GLIBC_TUNABLES");
+ /* Setgid child process. */
+ if (argc == 2)
+ {
+ if (getgid () == getegid ())
+ /* This can happen if the file system is mounted nosuid. */
+ FAIL_UNSUPPORTED ("SGID failed: GID and EGID match (%jd)\n",
+ (intmax_t) getgid ());
- if (val != NULL && strcmp (val, PARENT_VALSTRING_VALUE) == 0)
- return 0;
+ int ret = test_child (atoi (argv[1]));
- if (val != NULL)
- printf ("Unexpected GLIBC_TUNABLES VALUE %s\n", val);
+ if (ret != 0)
+ exit (1);
- return 1;
+ exit (EXIT_SUCCESS);
+ }
+ else
+ {
+ int ret = 0;
+
+ /* Spawn tests. */
+ for (int i = 0; i < array_length (teststrings); i++)
+ {
+ char buf[INT_BUFSIZE_BOUND (int)];
+
+ printf ("Spawned test for %s (%d)\n", teststrings[i], i);
+ snprintf (buf, sizeof (buf), "%d\n", i);
+ if (setenv ("GLIBC_TUNABLES", teststrings[i], 1) != 0)
+ exit (1);
+
+ int status = support_capture_subprogram_self_sgid (buf);
+
+ /* Bail out early if unsupported. */
+ if (WEXITSTATUS (status) == EXIT_UNSUPPORTED)
+ return EXIT_UNSUPPORTED;
+
+ ret |= status;
+ }
+ return ret;
+ }
}
+
+#define TEST_FUNCTION_ARGV do_test
+#include <support/test-driver.c>