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-rw-r--r--debug/tst-chk1.c847
1 files changed, 836 insertions, 11 deletions
diff --git a/debug/tst-chk1.c b/debug/tst-chk1.c
index 0df660d57f..c450744af5 100644
--- a/debug/tst-chk1.c
+++ b/debug/tst-chk1.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
@@ -17,7 +17,12 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+/* Hack: make sure GCC doesn't know __chk_fail () will not return. */
+#define __noreturn__
+
+#include <assert.h>
#include <fcntl.h>
+#include <locale.h>
#include <paths.h>
#include <setjmp.h>
#include <signal.h>
@@ -25,6 +30,9 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#include <wchar.h>
+#include <sys/socket.h>
+#include <sys/un.h>
char *temp_filename;
static void do_prepare (void);
@@ -69,13 +77,20 @@ handler (int sig)
}
char buf[10];
+wchar_t wbuf[10];
volatile size_t l0;
volatile char *p;
+volatile wchar_t *wp;
const char *str1 = "JIHGFEDCBA";
const char *str2 = "F";
const char *str3 = "%s%n%s%n";
const char *str4 = "Hello, ";
const char *str5 = "World!\n";
+const wchar_t *wstr1 = L"JIHGFEDCBA";
+const wchar_t *wstr2 = L"F";
+const wchar_t *wstr3 = L"%s%n%s%n";
+const wchar_t *wstr4 = L"Hello, ";
+const wchar_t *wstr5 = L"World!\n";
char buf2[10] = "%s";
int num1 = 67;
int num2 = 987654;
@@ -120,6 +135,7 @@ do_test (void)
setenv ("LIBC_FATAL_STDERR_", "1", 1);
struct A { char buf1[9]; char buf2[1]; } a;
+ struct wA { wchar_t buf1[9]; wchar_t buf2[1]; } wa;
printf ("Test checking routines at fortify level %d\n",
#ifdef __USE_FORTIFY_LEVEL
@@ -135,7 +151,8 @@ do_test (void)
if (memcmp (buf, "aabcdefghi", 10))
FAIL ();
- if (mempcpy (buf + 5, "abcde", 5) != buf + 10 || memcmp (buf, "aabcdabcde", 10))
+ if (mempcpy (buf + 5, "abcde", 5) != buf + 10
+ || memcmp (buf, "aabcdabcde", 10))
FAIL ();
memset (buf + 8, 'j', 2);
@@ -166,7 +183,8 @@ do_test (void)
if (memcmp (buf, "aabcdefghi", 10))
FAIL ();
- if (mempcpy (buf + 5, "abcde", l0 + 5) != buf + 10 || memcmp (buf, "aabcdabcde", 10))
+ if (mempcpy (buf + 5, "abcde", l0 + 5) != buf + 10
+ || memcmp (buf, "aabcdabcde", 10))
FAIL ();
memset (buf + 8, 'j', l0 + 2);
@@ -184,20 +202,24 @@ do_test (void)
if (memcmp (buf, "aabcEDX\0\0", 10))
FAIL ();
- if (sprintf (buf + 7, "%d", num1) != 2 || memcmp (buf, "aabcEDX67", 10))
+ if (stpncpy (buf + 5, "cd", l0 + 5) != buf + 7
+ || memcmp (buf, "aabcEcd\0\0", 10))
+ FAIL ();
+
+ if (sprintf (buf + 7, "%d", num1) != 2 || memcmp (buf, "aabcEcd67", 10))
FAIL ();
- if (snprintf (buf + 7, 3, "%d", num2) != 6 || memcmp (buf, "aabcEDX98", 10))
+ if (snprintf (buf + 7, 3, "%d", num2) != 6 || memcmp (buf, "aabcEcd98", 10))
FAIL ();
buf[l0 + 8] = '\0';
strcat (buf, "A");
- if (memcmp (buf, "aabcEDX9A", 10))
+ if (memcmp (buf, "aabcEcd9A", 10))
FAIL ();
buf[l0 + 7] = '\0';
strncat (buf, "ZYXWV", l0 + 2);
- if (memcmp (buf, "aabcEDXZY", 10))
+ if (memcmp (buf, "aabcEcdZY", 10))
FAIL ();
memcpy (a.buf1, "abcdefghij", l0 + 10);
@@ -213,7 +235,7 @@ do_test (void)
if (memcmp (a.buf1, "aabcdabcjj", 10))
FAIL ();
-#if __USE_FORTIFY_LEVEL < 2
+#if __USE_FORTIFY_LEVEL < 2 || !__GNUC_PREREQ (4, 0)
/* The following tests are supposed to crash with -D_FORTIFY_SOURCE=2
and sufficient GCC support, as the string operations overflow
from a.buf1 into a.buf2. */
@@ -221,14 +243,16 @@ do_test (void)
if (memcmp (a.buf1, "aabcEDCBA", 10))
FAIL ();
- if (stpcpy (a.buf1 + 8, str2) != a.buf1 + 9 || memcmp (a.buf1, "aabcEDCBF", 10))
+ if (stpcpy (a.buf1 + 8, str2) != a.buf1 + 9
+ || memcmp (a.buf1, "aabcEDCBF", 10))
FAIL ();
strncpy (a.buf1 + 6, "X", l0 + 4);
if (memcmp (a.buf1, "aabcEDX\0\0", 10))
FAIL ();
- if (sprintf (a.buf1 + 7, "%d", num1) != 2 || memcmp (a.buf1, "aabcEDX67", 10))
+ if (sprintf (a.buf1 + 7, "%d", num1) != 2
+ || memcmp (a.buf1, "aabcEDX67", 10))
FAIL ();
if (snprintf (a.buf1 + 7, 3, "%d", num2) != 6
@@ -279,6 +303,10 @@ do_test (void)
CHK_FAIL_END
CHK_FAIL_START
+ stpncpy (buf + 6, "cd", l0 + 5);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
sprintf (buf + 8, "%d", num1);
CHK_FAIL_END
@@ -312,7 +340,7 @@ do_test (void)
memset (a.buf1 + 9, 'j', l0 + 2);
CHK_FAIL_END
-#if __USE_FORTIFY_LEVEL >= 2
+#if __USE_FORTIFY_LEVEL >= 2 && __GNUC_PREREQ (4, 0)
# define O 0
#else
# define O 1
@@ -349,6 +377,219 @@ do_test (void)
CHK_FAIL_END
#endif
+
+ /* These ops can be done without runtime checking of object size. */
+ wmemcpy (wbuf, L"abcdefghij", 10);
+ wmemmove (wbuf + 1, wbuf, 9);
+ if (wmemcmp (wbuf, L"aabcdefghi", 10))
+ FAIL ();
+
+ if (wmempcpy (wbuf + 5, L"abcde", 5) != wbuf + 10
+ || wmemcmp (wbuf, L"aabcdabcde", 10))
+ FAIL ();
+
+ wmemset (wbuf + 8, L'j', 2);
+ if (wmemcmp (wbuf, L"aabcdabcjj", 10))
+ FAIL ();
+
+ wcscpy (wbuf + 4, L"EDCBA");
+ if (wmemcmp (wbuf, L"aabcEDCBA", 10))
+ FAIL ();
+
+ if (wcpcpy (wbuf + 8, L"F") != wbuf + 9 || wmemcmp (wbuf, L"aabcEDCBF", 10))
+ FAIL ();
+
+ wcsncpy (wbuf + 6, L"X", 4);
+ if (wmemcmp (wbuf, L"aabcEDX\0\0", 10))
+ FAIL ();
+
+ if (swprintf (wbuf + 7, 3, L"%ls", L"987654") >= 0
+ || wmemcmp (wbuf, L"aabcEDX98", 10))
+ FAIL ();
+
+ if (swprintf (wbuf + 7, 3, L"64") != 2
+ || wmemcmp (wbuf, L"aabcEDX64", 10))
+ FAIL ();
+
+ /* These ops need runtime checking, but shouldn't __chk_fail. */
+ wmemcpy (wbuf, L"abcdefghij", l0 + 10);
+ wmemmove (wbuf + 1, wbuf, l0 + 9);
+ if (wmemcmp (wbuf, L"aabcdefghi", 10))
+ FAIL ();
+
+ if (wmempcpy (wbuf + 5, L"abcde", l0 + 5) != wbuf + 10
+ || wmemcmp (wbuf, L"aabcdabcde", 10))
+ FAIL ();
+
+ wmemset (wbuf + 8, L'j', l0 + 2);
+ if (wmemcmp (wbuf, L"aabcdabcjj", 10))
+ FAIL ();
+
+ wcscpy (wbuf + 4, wstr1 + 5);
+ if (wmemcmp (wbuf, L"aabcEDCBA", 10))
+ FAIL ();
+
+ if (wcpcpy (wbuf + 8, wstr2) != wbuf + 9 || wmemcmp (wbuf, L"aabcEDCBF", 10))
+ FAIL ();
+
+ wcsncpy (wbuf + 6, L"X", l0 + 4);
+ if (wmemcmp (wbuf, L"aabcEDX\0\0", 10))
+ FAIL ();
+
+ if (wcpncpy (wbuf + 5, L"cd", l0 + 5) != wbuf + 7
+ || wmemcmp (wbuf, L"aabcEcd\0\0", 10))
+ FAIL ();
+
+ if (swprintf (wbuf + 7, 3, L"%d", num2) >= 0
+ || wmemcmp (wbuf, L"aabcEcd98", 10))
+ FAIL ();
+
+ wbuf[l0 + 8] = L'\0';
+ wcscat (wbuf, L"A");
+ if (wmemcmp (wbuf, L"aabcEcd9A", 10))
+ FAIL ();
+
+ wbuf[l0 + 7] = L'\0';
+ wcsncat (wbuf, L"ZYXWV", l0 + 2);
+ if (wmemcmp (wbuf, L"aabcEcdZY", 10))
+ FAIL ();
+
+ wmemcpy (wa.buf1, L"abcdefghij", l0 + 10);
+ wmemmove (wa.buf1 + 1, wa.buf1, l0 + 9);
+ if (wmemcmp (wa.buf1, L"aabcdefghi", 10))
+ FAIL ();
+
+ if (wmempcpy (wa.buf1 + 5, L"abcde", l0 + 5) != wa.buf1 + 10
+ || wmemcmp (wa.buf1, L"aabcdabcde", 10))
+ FAIL ();
+
+ wmemset (wa.buf1 + 8, L'j', l0 + 2);
+ if (wmemcmp (wa.buf1, L"aabcdabcjj", 10))
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL < 2
+ /* The following tests are supposed to crash with -D_FORTIFY_SOURCE=2
+ and sufficient GCC support, as the string operations overflow
+ from a.buf1 into a.buf2. */
+ wcscpy (wa.buf1 + 4, wstr1 + 5);
+ if (wmemcmp (wa.buf1, L"aabcEDCBA", 10))
+ FAIL ();
+
+ if (wcpcpy (wa.buf1 + 8, wstr2) != wa.buf1 + 9
+ || wmemcmp (wa.buf1, L"aabcEDCBF", 10))
+ FAIL ();
+
+ wcsncpy (wa.buf1 + 6, L"X", l0 + 4);
+ if (wmemcmp (wa.buf1, L"aabcEDX\0\0", 10))
+ FAIL ();
+
+ if (swprintf (wa.buf1 + 7, 3, L"%d", num2) >= 0
+ || wmemcmp (wa.buf1, L"aabcEDX98", 10))
+ FAIL ();
+
+ wa.buf1[l0 + 8] = L'\0';
+ wcscat (wa.buf1, L"A");
+ if (wmemcmp (wa.buf1, L"aabcEDX9A", 10))
+ FAIL ();
+
+ wa.buf1[l0 + 7] = L'\0';
+ wcsncat (wa.buf1, L"ZYXWV", l0 + 2);
+ if (wmemcmp (wa.buf1, L"aabcEDXZY", 10))
+ FAIL ();
+
+#endif
+
+#if __USE_FORTIFY_LEVEL >= 1
+ /* Now check if all buffer overflows are caught at runtime. */
+
+ CHK_FAIL_START
+ wmemcpy (wbuf + 1, L"abcdefghij", l0 + 10);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ wmemmove (wbuf + 2, wbuf + 1, l0 + 9);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ wp = wmempcpy (wbuf + 6, L"abcde", l0 + 5);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ wmemset (wbuf + 9, L'j', l0 + 2);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ wcscpy (wbuf + 5, wstr1 + 5);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ wp = wcpcpy (wbuf + 9, wstr2);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ wcsncpy (wbuf + 7, L"X", l0 + 4);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ wcpncpy (wbuf + 6, L"cd", l0 + 5);
+ CHK_FAIL_END
+
+ wmemcpy (wbuf, wstr1 + 2, l0 + 9);
+ CHK_FAIL_START
+ wcscat (wbuf, L"AB");
+ CHK_FAIL_END
+
+ wmemcpy (wbuf, wstr1 + 3, l0 + 8);
+ CHK_FAIL_START
+ wcsncat (wbuf, L"ZYXWV", l0 + 3);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ wmemcpy (wa.buf1 + 1, L"abcdefghij", l0 + 10);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ wmemmove (wa.buf1 + 2, wa.buf1 + 1, l0 + 9);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ wp = wmempcpy (wa.buf1 + 6, L"abcde", l0 + 5);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ wmemset (wa.buf1 + 9, L'j', l0 + 2);
+ CHK_FAIL_END
+
+#if __USE_FORTIFY_LEVEL >= 2
+# define O 0
+#else
+# define O 1
+#endif
+
+ CHK_FAIL_START
+ wcscpy (wa.buf1 + (O + 4), wstr1 + 5);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ wp = wcpcpy (wa.buf1 + (O + 8), wstr2);
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ wcsncpy (wa.buf1 + (O + 6), L"X", l0 + 4);
+ CHK_FAIL_END
+
+ wmemcpy (wa.buf1, wstr1 + (3 - O), l0 + 8 + O);
+ CHK_FAIL_START
+ wcscat (wa.buf1, L"AB");
+ CHK_FAIL_END
+
+ wmemcpy (wa.buf1, wstr1 + (4 - O), l0 + 7 + O);
+ CHK_FAIL_START
+ wcsncat (wa.buf1, L"ZYXWV", l0 + 3);
+ CHK_FAIL_END
+#endif
+
+
/* Now checks for %n protection. */
/* Constant literals passed directly are always ok
@@ -455,6 +696,121 @@ do_test (void)
CHK_FAIL_END
#endif
+ rewind (stdin);
+
+ if (fgets (buf, sizeof (buf), stdin) != buf
+ || memcmp (buf, "abcdefgh\n", 10))
+ FAIL ();
+ if (fgets (buf, sizeof (buf), stdin) != buf || memcmp (buf, "ABCDEFGHI", 10))
+ FAIL ();
+
+ rewind (stdin);
+
+ if (fgets (buf, l0 + sizeof (buf), stdin) != buf
+ || memcmp (buf, "abcdefgh\n", 10))
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ if (fgets (buf, sizeof (buf) + 1, stdin) != buf)
+ FAIL ();
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ if (fgets (buf, l0 + sizeof (buf) + 1, stdin) != buf)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+
+ rewind (stdin);
+
+ if (fgets_unlocked (buf, sizeof (buf), stdin) != buf
+ || memcmp (buf, "abcdefgh\n", 10))
+ FAIL ();
+ if (fgets_unlocked (buf, sizeof (buf), stdin) != buf
+ || memcmp (buf, "ABCDEFGHI", 10))
+ FAIL ();
+
+ rewind (stdin);
+
+ if (fgets_unlocked (buf, l0 + sizeof (buf), stdin) != buf
+ || memcmp (buf, "abcdefgh\n", 10))
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ if (fgets_unlocked (buf, sizeof (buf) + 1, stdin) != buf)
+ FAIL ();
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ if (fgets_unlocked (buf, l0 + sizeof (buf) + 1, stdin) != buf)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+
+ lseek (fileno (stdin), 0, SEEK_SET);
+
+ if (read (fileno (stdin), buf, sizeof (buf) - 1) != sizeof (buf) - 1
+ || memcmp (buf, "abcdefgh\n", 9))
+ FAIL ();
+ if (read (fileno (stdin), buf, sizeof (buf) - 1) != sizeof (buf) - 1
+ || memcmp (buf, "ABCDEFGHI", 9))
+ FAIL ();
+
+ lseek (fileno (stdin), 0, SEEK_SET);
+
+ if (read (fileno (stdin), buf, l0 + sizeof (buf) - 1) != sizeof (buf) - 1
+ || memcmp (buf, "abcdefgh\n", 9))
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ if (read (fileno (stdin), buf, sizeof (buf) + 1) != sizeof (buf) + 1)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+
+ if (pread (fileno (stdin), buf, sizeof (buf) - 1, sizeof (buf) - 2)
+ != sizeof (buf) - 1
+ || memcmp (buf, "\nABCDEFGH", 9))
+ FAIL ();
+ if (pread (fileno (stdin), buf, sizeof (buf) - 1, 0) != sizeof (buf) - 1
+ || memcmp (buf, "abcdefgh\n", 9))
+ FAIL ();
+ if (pread (fileno (stdin), buf, l0 + sizeof (buf) - 1, sizeof (buf) - 3)
+ != sizeof (buf) - 1
+ || memcmp (buf, "h\nABCDEFG", 9))
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ if (pread (fileno (stdin), buf, sizeof (buf) + 1, 2 * sizeof (buf))
+ != sizeof (buf) + 1)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+
+ if (pread64 (fileno (stdin), buf, sizeof (buf) - 1, sizeof (buf) - 2)
+ != sizeof (buf) - 1
+ || memcmp (buf, "\nABCDEFGH", 9))
+ FAIL ();
+ if (pread64 (fileno (stdin), buf, sizeof (buf) - 1, 0) != sizeof (buf) - 1
+ || memcmp (buf, "abcdefgh\n", 9))
+ FAIL ();
+ if (pread64 (fileno (stdin), buf, l0 + sizeof (buf) - 1, sizeof (buf) - 3)
+ != sizeof (buf) - 1
+ || memcmp (buf, "h\nABCDEFG", 9))
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ if (pread64 (fileno (stdin), buf, sizeof (buf) + 1, 2 * sizeof (buf))
+ != sizeof (buf) + 1)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+
if (freopen (temp_filename, "r", stdin) == NULL)
{
puts ("could not open temporary file");
@@ -491,5 +847,474 @@ do_test (void)
snprintf (buf, sizeof (buf), "%3$d\n", 1, 2, 3, 4);
CHK_FAIL2_END
+ int sp[2];
+ if (socketpair (PF_UNIX, SOCK_STREAM, 0, sp))
+ FAIL ();
+ else
+ {
+ const char *sendstr = "abcdefgh\nABCDEFGH\n0123456789\n";
+ if (send (sp[0], sendstr, strlen (sendstr), 0) != strlen (sendstr))
+ FAIL ();
+
+ char recvbuf[12];
+ if (recv (sp[1], recvbuf, sizeof recvbuf, MSG_PEEK)
+ != sizeof recvbuf
+ || memcmp (recvbuf, sendstr, sizeof recvbuf) != 0)
+ FAIL ();
+
+ if (recv (sp[1], recvbuf + 6, l0 + sizeof recvbuf - 7, MSG_PEEK)
+ != sizeof recvbuf - 7
+ || memcmp (recvbuf + 6, sendstr, sizeof recvbuf - 7) != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ if (recv (sp[1], recvbuf + 1, sizeof recvbuf, MSG_PEEK)
+ != sizeof recvbuf)
+ FAIL ();
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ if (recv (sp[1], recvbuf + 4, l0 + sizeof recvbuf - 3, MSG_PEEK)
+ != sizeof recvbuf - 3)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+
+ socklen_t sl;
+ struct sockaddr_un sa_un;
+
+ sl = sizeof (sa_un);
+ if (recvfrom (sp[1], recvbuf, sizeof recvbuf, MSG_PEEK, &sa_un, &sl)
+ != sizeof recvbuf
+ || memcmp (recvbuf, sendstr, sizeof recvbuf) != 0)
+ FAIL ();
+
+ sl = sizeof (sa_un);
+ if (recvfrom (sp[1], recvbuf + 6, l0 + sizeof recvbuf - 7, MSG_PEEK,
+ &sa_un, &sl) != sizeof recvbuf - 7
+ || memcmp (recvbuf + 6, sendstr, sizeof recvbuf - 7) != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ sl = sizeof (sa_un);
+ if (recvfrom (sp[1], recvbuf + 1, sizeof recvbuf, MSG_PEEK, &sa_un, &sl)
+ != sizeof recvbuf)
+ FAIL ();
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ sl = sizeof (sa_un);
+ if (recvfrom (sp[1], recvbuf + 4, l0 + sizeof recvbuf - 3, MSG_PEEK,
+ &sa_un, &sl) != sizeof recvbuf - 3)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+
+ close (sp[0]);
+ close (sp[1]);
+ }
+
+ char fname[] = "/tmp/tst-chk1-dir-XXXXXX\0foo";
+ char *enddir = strchr (fname, '\0');
+ if (mkdtemp (fname) == NULL)
+ {
+ printf ("mkdtemp failed: %m\n");
+ return 1;
+ }
+ *enddir = '/';
+ if (symlink ("bar", fname) != 0)
+ FAIL ();
+
+ char readlinkbuf[4];
+ if (readlink (fname, readlinkbuf, 4) != 3
+ || memcmp (readlinkbuf, "bar", 3) != 0)
+ FAIL ();
+ if (readlink (fname, readlinkbuf + 1, l0 + 3) != 3
+ || memcmp (readlinkbuf, "bbar", 4) != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ if (readlink (fname, readlinkbuf + 2, l0 + 3) != 3)
+ FAIL ();
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ if (readlink (fname, readlinkbuf + 3, 4) != 3)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+
+ int tmpfd = open ("/tmp", O_RDONLY | O_DIRECTORY);
+ if (tmpfd < 0)
+ FAIL ();
+
+ if (readlinkat (tmpfd, fname + sizeof ("/tmp/") - 1, readlinkbuf, 4) != 3
+ || memcmp (readlinkbuf, "bar", 3) != 0)
+ FAIL ();
+ if (readlinkat (tmpfd, fname + sizeof ("/tmp/") - 1, readlinkbuf + 1,
+ l0 + 3) != 3
+ || memcmp (readlinkbuf, "bbar", 4) != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ if (readlinkat (tmpfd, fname + sizeof ("/tmp/") - 1, readlinkbuf + 2,
+ l0 + 3) != 3)
+ FAIL ();
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ if (readlinkat (tmpfd, fname + sizeof ("/tmp/") - 1, readlinkbuf + 3,
+ 4) != 3)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+
+ close (tmpfd);
+
+ char *cwd1 = getcwd (NULL, 0);
+ if (cwd1 == NULL)
+ FAIL ();
+
+ char *cwd2 = getcwd (NULL, 250);
+ if (cwd2 == NULL)
+ FAIL ();
+
+ if (cwd1 && cwd2)
+ {
+ if (strcmp (cwd1, cwd2) != 0)
+ FAIL ();
+
+ *enddir = '\0';
+ if (chdir (fname))
+ FAIL ();
+
+ char *cwd3 = getcwd (NULL, 0);
+ if (cwd3 == NULL)
+ FAIL ();
+ if (strcmp (fname, cwd3) != 0)
+ printf ("getcwd after chdir is '%s' != '%s',"
+ "get{c,}wd tests skipped\n", cwd3, fname);
+ else
+ {
+ char getcwdbuf[sizeof fname - 3];
+
+ char *cwd4 = getcwd (getcwdbuf, sizeof getcwdbuf);
+ if (cwd4 != getcwdbuf
+ || strcmp (getcwdbuf, fname) != 0)
+ FAIL ();
+
+ cwd4 = getcwd (getcwdbuf + 1, l0 + sizeof getcwdbuf - 1);
+ if (cwd4 != getcwdbuf + 1
+ || getcwdbuf[0] != fname[0]
+ || strcmp (getcwdbuf + 1, fname) != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ if (getcwd (getcwdbuf + 2, l0 + sizeof getcwdbuf)
+ != getcwdbuf + 2)
+ FAIL ();
+ CHK_FAIL_END
+
+ CHK_FAIL_START
+ if (getcwd (getcwdbuf + 2, sizeof getcwdbuf)
+ != getcwdbuf + 2)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+
+ if (getwd (getcwdbuf) != getcwdbuf
+ || strcmp (getcwdbuf, fname) != 0)
+ FAIL ();
+
+ if (getwd (getcwdbuf + 1) != getcwdbuf + 1
+ || strcmp (getcwdbuf + 1, fname) != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ if (getwd (getcwdbuf + 2) != getcwdbuf + 2)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+ }
+
+ if (chdir (cwd1) != 0)
+ FAIL ();
+ free (cwd3);
+ }
+
+ free (cwd1);
+ free (cwd2);
+ *enddir = '/';
+ if (unlink (fname) != 0)
+ FAIL ();
+
+ *enddir = '\0';
+ if (rmdir (fname) != 0)
+ FAIL ();
+
+
+#if PATH_MAX > 0
+ char largebuf[PATH_MAX];
+ char *realres = realpath (".", largebuf);
+ if (realres != largebuf)
+ FAIL ();
+
+# if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ char realbuf[1];
+ realres = realpath (".", realbuf);
+ if (realres != realbuf)
+ FAIL ();
+ CHK_FAIL_END
+# endif
+#endif
+
+ if (setlocale (LC_ALL, "de_DE.UTF-8") != NULL)
+ {
+ assert (MB_CUR_MAX <= 10);
+
+ /* First a simple test. */
+ char enough[10];
+ if (wctomb (enough, L'A') != 1)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ /* We know the wchar_t encoding is ISO 10646. So pick a
+ character which has a multibyte representation which does not
+ fit. */
+ CHK_FAIL_START
+ char smallbuf[2];
+ if (wctomb (smallbuf, L'\x100') != 2)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+
+ mbstate_t s;
+ memset (&s, '\0', sizeof (s));
+ if (wcrtomb (enough, L'D', &s) != 1 || enough[0] != 'D')
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ /* We know the wchar_t encoding is ISO 10646. So pick a
+ character which has a multibyte representation which does not
+ fit. */
+ CHK_FAIL_START
+ char smallbuf[2];
+ if (wcrtomb (smallbuf, L'\x100', &s) != 2)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+
+ wchar_t wenough[10];
+ memset (&s, '\0', sizeof (s));
+ const char *cp = "A";
+ if (mbsrtowcs (wenough, &cp, 10, &s) != 1
+ || wcscmp (wenough, L"A") != 0)
+ FAIL ();
+
+ cp = "BC";
+ if (mbsrtowcs (wenough, &cp, l0 + 10, &s) != 2
+ || wcscmp (wenough, L"BC") != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ wchar_t wsmallbuf[2];
+ cp = "ABC";
+ mbsrtowcs (wsmallbuf, &cp, 10, &s);
+ CHK_FAIL_END
+#endif
+
+ cp = "A";
+ if (mbstowcs (wenough, cp, 10) != 1
+ || wcscmp (wenough, L"A") != 0)
+ FAIL ();
+
+ cp = "DEF";
+ if (mbstowcs (wenough, cp, l0 + 10) != 3
+ || wcscmp (wenough, L"DEF") != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ wchar_t wsmallbuf[2];
+ cp = "ABC";
+ mbstowcs (wsmallbuf, cp, 10);
+ CHK_FAIL_END
+#endif
+
+ memset (&s, '\0', sizeof (s));
+ cp = "ABC";
+ wcscpy (wenough, L"DEF");
+ if (mbsnrtowcs (wenough, &cp, 1, 10, &s) != 1
+ || wcscmp (wenough, L"AEF") != 0)
+ FAIL ();
+
+ cp = "IJ";
+ if (mbsnrtowcs (wenough, &cp, 1, l0 + 10, &s) != 1
+ || wcscmp (wenough, L"IEF") != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ wchar_t wsmallbuf[2];
+ cp = "ABC";
+ mbsnrtowcs (wsmallbuf, &cp, 3, 10, &s);
+ CHK_FAIL_END
+#endif
+
+ memset (&s, '\0', sizeof (s));
+ const wchar_t *wcp = L"A";
+ if (wcsrtombs (enough, &wcp, 10, &s) != 1
+ || strcmp (enough, "A") != 0)
+ FAIL ();
+
+ wcp = L"BC";
+ if (wcsrtombs (enough, &wcp, l0 + 10, &s) != 2
+ || strcmp (enough, "BC") != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ char smallbuf[2];
+ wcp = L"ABC";
+ wcsrtombs (smallbuf, &wcp, 10, &s);
+ CHK_FAIL_END
+#endif
+
+ memset (enough, 'Z', sizeof (enough));
+ wcp = L"EF";
+ if (wcstombs (enough, wcp, 10) != 2
+ || strcmp (enough, "EF") != 0)
+ FAIL ();
+
+ wcp = L"G";
+ if (wcstombs (enough, wcp, l0 + 10) != 1
+ || strcmp (enough, "G") != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ char smallbuf[2];
+ wcp = L"ABC";
+ wcstombs (smallbuf, wcp, 10);
+ CHK_FAIL_END
+#endif
+
+ memset (&s, '\0', sizeof (s));
+ wcp = L"AB";
+ if (wcsnrtombs (enough, &wcp, 1, 10, &s) != 1
+ || strcmp (enough, "A") != 0)
+ FAIL ();
+
+ wcp = L"BCD";
+ if (wcsnrtombs (enough, &wcp, 1, l0 + 10, &s) != 1
+ || strcmp (enough, "B") != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ char smallbuf[2];
+ wcp = L"ABC";
+ wcsnrtombs (smallbuf, &wcp, 3, 10, &s);
+ CHK_FAIL_END
+#endif
+ }
+ else
+ {
+ puts ("cannot set locale");
+ ret = 1;
+ }
+
+ fd = posix_openpt (O_RDWR);
+ if (fd != -1)
+ {
+ char enough[1000];
+ if (ptsname_r (fd, enough, sizeof (enough)) != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ char smallbuf[2];
+ if (ptsname_r (fd, smallbuf, sizeof (smallbuf) + 1) == 0)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+ close (fd);
+ }
+
+#if PATH_MAX > 0
+ confstr (_CS_GNU_LIBC_VERSION, largebuf, sizeof (largebuf));
+# if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ char smallbuf[1];
+ confstr (_CS_GNU_LIBC_VERSION, smallbuf, sizeof (largebuf));
+ CHK_FAIL_END
+# endif
+#endif
+
+ gid_t grpslarge[5];
+ int ngr = getgroups (5, grpslarge);
+ asm volatile ("" : : "r" (ngr));
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ char smallbuf[1];
+ ngr = getgroups (5, (gid_t *) smallbuf);
+ asm volatile ("" : : "r" (ngr));
+ CHK_FAIL_END
+#endif
+
+ fd = open (_PATH_TTY, O_RDONLY);
+ if (fd != -1)
+ {
+ char enough[1000];
+ if (ttyname_r (fd, enough, sizeof (enough)) != 0)
+ FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ char smallbuf[2];
+ if (ttyname_r (fd, smallbuf, sizeof (smallbuf) + 1) == 0)
+ FAIL ();
+ CHK_FAIL_END
+#endif
+ close (fd);
+ }
+
+ char hostnamelarge[1000];
+ gethostname (hostnamelarge, sizeof (hostnamelarge));
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ char smallbuf[1];
+ gethostname (smallbuf, sizeof (hostnamelarge));
+ CHK_FAIL_END
+#endif
+
+ char loginlarge[1000];
+ getlogin_r (loginlarge, sizeof (hostnamelarge));
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ char smallbuf[1];
+ getlogin_r (smallbuf, sizeof (loginlarge));
+ CHK_FAIL_END
+#endif
+
+ char domainnamelarge[1000];
+ int res = getdomainname (domainnamelarge, sizeof (domainnamelarge));
+ asm volatile ("" : : "r" (res));
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ char smallbuf[1];
+ res = getdomainname (smallbuf, sizeof (domainnamelarge));
+ asm volatile ("" : : "r" (res));
+ CHK_FAIL_END
+#endif
+
return ret;
}
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