/**
* open file for read.
* @param name
*
* @return bool
*/
bool LibPCapReader::Create(char * name, int loops)
{
this->m_loops = loops;
if(name == NULL) {
return false;
}
if (m_is_open) {
return true;
}
m_file_handler = CAP_FOPEN_64(name,"rb");
if (m_file_handler == 0) {
printf(" failed to open cap file %s : errno : %d\n",name, errno);
return false;
}
CAP_FSEEK_64 (m_file_handler, 0, SEEK_END);
m_file_size = CAP_FTELL_64 (m_file_handler);
rewind (m_file_handler);
if (init()) {
m_is_open = true;
return true;
}
fclose(m_file_handler);
return false;
}
/**
* try to create type by type
* @param name
*
* @return CCapReaderBase*
*/
CCapReaderBase * CCapReaderFactory::CreateReader(char * name, int loops)
{
if (name == NULL) {
printf("Got null file name\n");
return NULL;
}
/* make sure we have a file */
FILE * f = CAP_FOPEN_64(name, "rb");
if (f == NULL) {
if (errno == ENOENT) {
printf("\nERROR: Cap file not found %s\n\n",name);
} else {
printf("\nERROR: Failed to open cap file '%s' with errno %d\n\n", name, errno);
}
return NULL;
}
// close the file
fclose(f);
for (capture_type_e i = LIBPCAP ; i<LAST_TYPE ; i = (capture_type_e(i+1)) )
{
CCapReaderBase * next = CCapReaderFactory::CreateReaderInstace(i);
if (next == NULL || next->Create(name,loops)) {
return next;
}
delete next;
}
printf("\nERROR: file %s format not supported",name);
printf("\nERROR: formats supported are LIBPCAP and ERF. other formats are deprecated\n\n");
return NULL;
}
/**
* Try to open file for writing.
* @param name - file nae
*
* @return bool
*/
bool LibPCapWriter::Create(char * name)
{
if (name == NULL) {
return false;
}
if (m_is_open) {
return true;
}
m_file_handler = CAP_FOPEN_64(name,"wb");
if (m_file_handler == 0) {
printf(" ERROR create file \n");
return(false);
}
/* prepare the write counter */
m_pkt_count = 0;
return init();
}
