/*
* corrupt_metadata --
* Corrupt the metadata by scribbling on the "corrupt" URI string.
*/
static void
corrupt_metadata(void)
{
FILE *fp;
struct stat sb;
long off;
size_t meta_size;
bool corrupted;
uint8_t *buf, *corrupt;
char path[256];
/*
* Open the file, read its contents. Find the string "corrupt" and
* modify one byte at that offset. That will cause a checksum error
* when WiredTiger next reads it.
*/
testutil_check(__wt_snprintf(
path, sizeof(path), "%s/%s", home, WT_METAFILE));
if ((fp = fopen(path, "r+")) == NULL)
testutil_die(errno, "fopen: %s", path);
testutil_check(fstat(fileno(fp), &sb));
meta_size = (size_t)sb.st_size;
buf = dcalloc(meta_size, 1);
if (fread(buf, 1, meta_size, fp) != meta_size)
testutil_die(errno, "fread: %" WT_SIZET_FMT, meta_size);
corrupted = false;
/*
* Corrupt all occurrences of the string in the file.
*/
while ((corrupt = byte_str(buf, meta_size, CORRUPT)) != NULL) {
corrupted = true;
testutil_assert(*(char *)corrupt != 'X');
*(char *)corrupt = 'X';
off = (long)(corrupt - buf);
if (fseek(fp, off, SEEK_SET) != 0)
testutil_die(errno, "fseek: %ld", off);
if (fwrite("X", 1, 1, fp) != 1)
testutil_die(errno, "fwrite");
}
if (!corrupted)
testutil_die(errno, "corrupt string did not occur");
if (fclose(fp) != 0)
testutil_die(errno, "fclose");
free(buf);
}
bool NetSelectSocket::read() {
EPYX_ASSERT(sock);
const int size = 4096;
byte data[size];
int recvSize = sock->recv(data, size);
// Quit on End-Of-File
if (recvSize == 0)
return false;
// Eat data
try {
this->eat(byte_str(data, recvSize));
} catch (MinorException e) {
log::error << e << log::endl;
log::error << "Closing socket to " << sock->getAddress() <<
" due to an exception" << log::endl;
return false;
}
return sock->isOpened();
}
