/*static*/ status_t
FSUtils::CompareSymLinks(BSymLink& symLink1, BSymLink& symLink2, bool& _equal)
{
char buffer1[B_PATH_NAME_LENGTH];
ssize_t bytesRead1 = symLink1.ReadLink(buffer1, sizeof(buffer1));
if (bytesRead1 < 0)
return bytesRead1;
char buffer2[B_PATH_NAME_LENGTH];
ssize_t bytesRead2 = symLink2.ReadLink(buffer2, sizeof(buffer2));
if (bytesRead2 < 0)
return bytesRead2;
_equal = bytesRead1 == bytesRead2
&& memcmp(buffer1, buffer2, bytesRead1) == 0;
return B_OK;
}
// ReadLinkTest
void
SymLinkTest::ReadLinkTest()
{
const char *dirLink = dirLinkname;
const char *fileLink = fileLinkname;
const char *badLink = badLinkname;
const char *cyclicLink1 = cyclicLinkname1;
const char *cyclicLink2 = cyclicLinkname2;
const char *existingDir = existingDirname;
const char *existingFile = existingFilename;
const char *nonExisting = nonExistingDirname;
BSymLink link;
char buffer[B_PATH_NAME_LENGTH + 1];
// uninitialized
// R5: returns B_BAD_ADDRESS instead of (as doc'ed) B_FILE_ERROR
NextSubTest();
CPPUNIT_ASSERT( link.InitCheck() == B_NO_INIT );
CPPUNIT_ASSERT( equals(link.ReadLink(buffer, sizeof(buffer)),
B_BAD_ADDRESS, B_FILE_ERROR) );
// existing dir link
NextSubTest();
CPPUNIT_ASSERT( link.SetTo(dirLink) == B_OK );
CPPUNIT_ASSERT( link.ReadLink(buffer, sizeof(buffer))
== (ssize_t)strlen(existingDir) );
CPPUNIT_ASSERT( strcmp(buffer, existingDir) == 0 );
// existing file link
NextSubTest();
CPPUNIT_ASSERT( link.SetTo(fileLink) == B_OK );
CPPUNIT_ASSERT( link.ReadLink(buffer, sizeof(buffer))
== (ssize_t)strlen(existingFile) );
CPPUNIT_ASSERT( strcmp(buffer, existingFile) == 0 );
// existing cyclic link
NextSubTest();
CPPUNIT_ASSERT( link.SetTo(cyclicLink1) == B_OK );
CPPUNIT_ASSERT( link.ReadLink(buffer, sizeof(buffer))
== (ssize_t)strlen(cyclicLink2) );
CPPUNIT_ASSERT( strcmp(buffer, cyclicLink2) == 0 );
// existing link to non-existing entry
NextSubTest();
CPPUNIT_ASSERT( link.SetTo(badLink) == B_OK );
CPPUNIT_ASSERT( link.ReadLink(buffer, sizeof(buffer))
== (ssize_t)strlen(nonExisting) );
CPPUNIT_ASSERT( strcmp(buffer, nonExisting) == 0 );
// non-existing link
// R5: returns B_BAD_ADDRESS instead of (as doc'ed) B_FILE_ERROR
NextSubTest();
CPPUNIT_ASSERT( link.SetTo(nonExisting) == B_ENTRY_NOT_FOUND );
CPPUNIT_ASSERT( equals(link.ReadLink(buffer, sizeof(buffer)),
B_BAD_ADDRESS, B_FILE_ERROR) );
// dir
NextSubTest();
CPPUNIT_ASSERT( link.SetTo(existingDir) == B_OK );
CPPUNIT_ASSERT( link.ReadLink(buffer, sizeof(buffer)) == B_BAD_VALUE );
// file
NextSubTest();
CPPUNIT_ASSERT( link.SetTo(existingFile) == B_OK );
CPPUNIT_ASSERT( link.ReadLink(buffer, sizeof(buffer)) == B_BAD_VALUE );
// small buffer
// R5: returns the size of the contents, not the number of bytes copied
// OBOS: ... so do we
NextSubTest();
char smallBuffer[2];
CPPUNIT_ASSERT( link.SetTo(dirLink) == B_OK );
CPPUNIT_ASSERT( link.ReadLink(smallBuffer, sizeof(smallBuffer))
== (ssize_t)strlen(dirLink) );
CPPUNIT_ASSERT( strncmp(smallBuffer, existingDir, sizeof(smallBuffer)) == 0 );
// bad args
NextSubTest();
CPPUNIT_ASSERT( link.SetTo(fileLink) == B_OK );
CPPUNIT_ASSERT( equals(link.ReadLink(NULL, sizeof(buffer)), B_BAD_ADDRESS,
B_BAD_VALUE) );
}
