-const char jcc_rcs[] = "$Id: jcc.c,v 1.228 2009/03/06 20:30:13 fabiankeil Exp $";
+const char jcc_rcs[] = "$Id: jcc.c,v 1.232 2009/03/08 19:29:16 fabiankeil Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/jcc.c,v $
*
* Revisions :
* $Log: jcc.c,v $
+ * Revision 1.232 2009/03/08 19:29:16 fabiankeil
+ * Reinitialize the timeout structure every time before passing
+ * it to select(). Apparently some implementations mess with it.
+ * Probably fixes #2669131 reported by cyberpatrol.
+ *
+ * Revision 1.231 2009/03/08 14:19:23 fabiankeil
+ * Fix justified (but harmless) compiler warnings
+ * on platforms where sizeof(int) < sizeof(long).
+ *
+ * Revision 1.230 2009/03/07 13:09:17 fabiankeil
+ * Change csp->expected_content and_csp->expected_content_length from
+ * size_t to unsigned long long to reduce the likelihood of integer
+ * overflows that would let us close the connection prematurely.
+ * Bug found while investigating #2669131, reported by cyberpatrol.
+ *
+ * Revision 1.229 2009/03/07 11:17:01 fabiankeil
+ * Fix compiler warning.
+ *
* Revision 1.228 2009/03/06 20:30:13 fabiankeil
* Log unsigned values as such.
*
* FALSE otherwise.
*
*********************************************************************/
-static int server_response_is_complete(struct client_state *csp, size_t content_length)
+static int server_response_is_complete(struct client_state *csp,
+ unsigned long long content_length)
{
int content_length_known = !!(csp->flags & CSP_FLAG_CONTENT_LENGTH_SET);
jb_socket maxfd;
int server_body;
int ms_iis5_hack = 0;
- size_t byte_count = 0;
+ unsigned long long byte_count = 0;
int forwarded_connect_retries = 0;
int max_forwarded_connect_retries = csp->config->forwarded_connect_retries;
const struct forward_spec *fwd;
struct http_request *http;
- int len = 0; /* for buffer sizes (and negative error codes) */
+ long len = 0; /* for buffer sizes (and negative error codes) */
/* Function that does the content filtering for the current request */
filter_function_ptr content_filter = NULL;
struct timeval timeout;
memset(buf, 0, sizeof(buf));
- memset(&timeout, 0, sizeof(timeout));
- timeout.tv_sec = csp->config->socket_timeout;
http = csp->http;
log_error(LOG_LEVEL_CONNECT,
"Looks like we read the last chunk together with "
"the server headers. We better stop reading.");
- byte_count = (size_t)(csp->iob->eod - csp->iob->cur);
+ byte_count = (unsigned long long)(csp->iob->eod - csp->iob->cur);
csp->expected_content_length = byte_count;
csp->flags |= CSP_FLAG_CONTENT_LENGTH_SET;
}
if (server_body && server_response_is_complete(csp, byte_count))
{
log_error(LOG_LEVEL_CONNECT,
- "Done reading from server. Expected content length: %u. "
- "Actual content length: %u. Most recently received: %d.",
+ "Done reading from server. Expected content length: %llu. "
+ "Actual content length: %llu. Most recently received: %d.",
csp->expected_content_length, byte_count, len);
len = 0;
/*
}
#endif /* FEATURE_CONNECTION_KEEP_ALIVE */
+ timeout.tv_sec = csp->config->socket_timeout;
+ timeout.tv_usec = 0;
n = select((int)maxfd+1, &rfds, NULL, NULL, &timeout);
if (n == 0)
log_error(LOG_LEVEL_CONNECT,
"Looks like we reached the end of the last chunk. "
"We better stop reading.");
- csp->expected_content_length = byte_count + (size_t)len;
+ csp->expected_content_length = byte_count + (unsigned long long)len;
csp->flags |= CSP_FLAG_CONTENT_LENGTH_SET;
}
}
}
if (write_socket(csp->cfd, hdr, strlen(hdr))
- || write_socket(csp->cfd, p != NULL ? p : csp->iob->cur, csp->content_length))
+ || write_socket(csp->cfd,
+ ((p != NULL) ? p : csp->iob->cur), (size_t)csp->content_length))
{
log_error(LOG_LEVEL_ERROR, "write modified content to client failed: %E");
freez(hdr);
if (add_to_iob(csp, buf, len))
{
size_t hdrlen;
- int flushed;
+ long flushed;
log_error(LOG_LEVEL_INFO,
"Flushing header and buffers. Stepping back from filtering.");
* we just flushed. len will be added a few lines below,
* hdrlen doesn't matter for LOG_LEVEL_CLF.
*/
- byte_count = (size_t)flushed;
+ byte_count = (unsigned long long)flushed;
freez(hdr);
content_filter = NULL;
server_body = 1;
return;
}
}
- byte_count += (size_t)len;
+ byte_count += (unsigned long long)len;
continue;
}
else
* Since we have to wait for more from the server before
* we can parse the headers we just continue here.
*/
- int header_offset = csp->iob->cur - header_start;
+ long header_offset = csp->iob->cur - header_start;
assert(csp->iob->cur >= header_start);
- byte_count += (size_t)(len - header_offset);
+ byte_count += (unsigned long long)(len - header_offset);
log_error(LOG_LEVEL_CONNECT, "Continuing buffering headers. "
- "byte_count: %u. header_offset: %d. len: %d.",
+ "byte_count: %llu. header_offset: %d. len: %d.",
byte_count, header_offset, len);
continue;
}
return;
}
- byte_count += (size_t)len;
+ byte_count += (unsigned long long)len;
}
else
{
* XXX: the header lenght should probably
* be calculated by get_server_headers().
*/
- int header_length = csp->iob->cur - header_start;
+ long header_length = csp->iob->cur - header_start;
assert(csp->iob->cur > header_start);
- byte_count += (size_t)(len - header_length);
+ byte_count += (unsigned long long)(len - header_length);
}
/* we're finished with the server's header */
&& (csp->expected_content_length != byte_count))
{
log_error(LOG_LEVEL_CONNECT,
- "Received %u bytes while expecting %u.",
+ "Received %llu bytes while expecting %llu.",
byte_count, csp->expected_content_length);
mark_server_socket_tainted(csp);
}
#endif
- log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 200 %u",
+ log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 200 %llu",
csp->ip_addr_str, http->ocmd, csp->content_length);
}
projects / privoxy.git / blobdiff