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am aed0c3ac: am b94b2851: Merge "libc: upgrade sprintf to _FORTIFY_SOURCE=2"

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* commit 'aed0c3ac54fa944b1f8512938277e7dc6b6fa2ee':
  libc: upgrade sprintf to _FORTIFY_SOURCE=2
This commit is contained in:
Nick Kralevich 2013-04-30 08:54:30 -07:00 committed by Android Git Automerger
commit d411fbd497
4 changed files with 33 additions and 4 deletions
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2
libc/include/stdio.h
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@ -494,7 +494,7 @@ __attribute__((__nonnull__ (2)))
int sprintf(char *dest, const char *format, ...)
{
return __builtin___sprintf_chk(dest, 0,
__builtin_object_size(dest, 0), format, __builtin_va_arg_pack());
__bos(dest), format, __builtin_va_arg_pack());
}
extern char *__fgets_real(char *, int, FILE *)

4
libc/include/sys/cdefs.h
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@ -518,9 +518,9 @@
#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0 && !defined(__clang__)
#define __BIONIC_FORTIFY 1
#if _FORTIFY_SOURCE == 2
#define __bos(s) __builtin_object_size((s), 1);
#define __bos(s) __builtin_object_size((s), 1)
#else
#define __bos(s) __builtin_object_size((s), 0);
#define __bos(s) __builtin_object_size((s), 0)
#endif
#define __BIONIC_FORTIFY_INLINE \

8
tests/fortify1_test.cpp
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@ -52,3 +52,11 @@ TEST(Fortify1_DeathTest, strrchr_fortified) {
ASSERT_EXIT(printf("%s", strrchr(buf, 'a')), testing::KilledBySignal(SIGSEGV), "");
}
#endif
TEST(Fortify1_DeathTest, sprintf_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char buf[10];
char source_buf[15];
memcpy(source_buf, "12345678901234", 15);
ASSERT_EXIT(sprintf(buf, "%s", source_buf), testing::KilledBySignal(SIGSEGV), "");
}

23
tests/fortify2_test.cpp
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@ -27,7 +27,7 @@ struct foo {
// We have to say "DeathTest" here so gtest knows to run this test (which exits)
// in its own process.
TEST(Fortify2_DeathTest, strncpy_fortified) {
TEST(Fortify2_DeathTest, strncpy_fortified2) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
foo myfoo;
int copy_amt = atoi("11");
@ -35,6 +35,19 @@ TEST(Fortify2_DeathTest, strncpy_fortified) {
testing::KilledBySignal(SIGSEGV), "");
}
TEST(Fortify2_DeathTest, sprintf_fortified2) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
foo myfoo;
char source_buf[15];
memcpy(source_buf, "12345678901234", 15);
ASSERT_EXIT(sprintf(myfoo.a, "%s", source_buf),
testing::KilledBySignal(SIGSEGV), "");
}
/***********************************************************/
/* TESTS BELOW HERE DUPLICATE TESTS FROM fortify1_test.cpp */
/***********************************************************/
#if __BIONIC__
TEST(Fortify2_DeathTest, strcpy_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
@ -65,3 +78,11 @@ TEST(Fortify2_DeathTest, strrchr_fortified) {
ASSERT_EXIT(printf("%s", strrchr(buf, 'a')), testing::KilledBySignal(SIGSEGV), "");
}
#endif
TEST(Fortify2_DeathTest, sprintf_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char buf[10];
char source_buf[15];
memcpy(source_buf, "12345678901234", 15);
ASSERT_EXIT(sprintf(buf, "%s", source_buf), testing::KilledBySignal(SIGSEGV), "");
}