int main(int argc, char **argv){
Elf *elf;
Elf_Scn *scn = NULL;
GElf_Shdr shdr;
Elf_Data *data;
int fd, ii, count;
GElf_Dyn sym;
char* custcustname = NULL;
char curLib[1000];
int lib_count = 0, z = 0;
// do arguement checking
if (argc != 2){
cerr << "Usage is: elf filecustname " << endl;
exit(1);
}
// open the file in argv[1] and produce the elf descriptor
elf_version(EV_CURRENT);
if ((fd = open(argv[1], O_RDONLY)) == -1){
cerr << "Could not open file: " << argv[1] << endl;
exit(1);
}
elf = elf_begin(fd, ELF_C_READ, NULL);
// scan through the sections in the file
while ((scn = elf_nextscn(elf, scn)) != NULL)
{
// get the section header and check to see if the it the
// .dynamic section
gelf_getshdr(scn, &shdr);
if (shdr.sh_type == SHT_DYNAMIC)
{
data = elf_getdata(scn, NULL);
ii=0;
do
{
gelf_getdyn(data, ii++, &sym);
if (sym.d_tag == DT_NEEDED){
// if we find a element in the section
// that is a curLib we pull it out
custname = elf_strptr(elf,shdr.sh_link,sym.d_un.d_ptr);
if (custname != NULL){
strcat(curLib,custname); //curLib custnames are added separated by ":"
strcat(curLib,":");
lib_count++; //count the number of libraries read
}
}
if (sym.d_tag == DT_RPATH) {
custname = elf_strptr(elf,shdr.sh_link,sym.d_un.d_ptr);
if (custname != NULL){
char complete_list[5000];
char lib[100];
int count = 0;
//for each curLib, resolve its address
for(int i = 0; i < lib_count; i++) {
int counter = 0;
while(curLib[count] != ':'){
lib[counter++] = curLib[count++];
}
lib[counter] = '\0';
count++;
//if by any chance a curLib cannot be found, exit program
if(get_replace(complete_list,lib,custname) == false){
cerr << "Error some of the libraries not found!" << endl;
exit(1);
}
}
cout<< endl << complete_list << endl; //output all the libraries with their absolute paths
}
}
} while (sym.d_tag != DT_NULL);
}
}
elf_end(elf);
return 0;
}
const bool SM_Net::download_file ( void )
{
if( ! define_info( sm_download->option == OPTION_NOT_ASKED ) )
return false;
if( sm_download->option == OPTION_NOT_ASKED )
{
sm_download->size = get_totalSize();
sm_download->completed = get_comSize();
sm_download->option = get_replace();
}
else
{
set_totalSize ( sm_download->size );
set_replace ( sm_download->option );
}
if( isHTTP() )
{
sm_httpSocket = new SM_HTTP ();
if( ! sm_httpSocket )
{
SM_Util::msg_err( "Error: could not allocate http socket." );
delete sm_httpSocket;
sm_httpSocket = NULL;
return false;
}
if( ! sm_httpSocket->configure( sm_address, sm_port ) )
{
SM_Util::msg_err( "Error: could not connect to server." );
delete sm_httpSocket;
sm_httpSocket = NULL;
return false;
}
if( ! donwload )
{
running = true;
sm_httpSocket->set_speedLimit( sm_speedLimit );
bool get_return;
if( replace && get_comSize() == 0 )
get_return = sm_httpSocket->get_file( sm_download, sm_fileName, sm_path, get_totalSize(), replace );
else
get_return = sm_httpSocket->get_file( sm_download, sm_fileName, sm_path, get_totalSize() - sm_size, replace );
running = false;
delete sm_httpSocket;
sm_httpSocket = NULL;
if( get_return )
{
if( isCompleted() )
sm_signal_completed( this );
else
sm_signal_paused( this );
return true;
}
else
{
SM_Util::msg_err( "Error: could not get file." );
return false;
}
}
delete sm_httpSocket;
sm_httpSocket = NULL;
return true;
}
else if ( isFTP() )
{
sm_ftpSocket = new SM_FTP();
if( ! sm_ftpSocket )
{
SM_Util::msg_err( "Error: could not allocate ftp socket." );
delete sm_ftpSocket;
sm_ftpSocket = NULL;
return false;
}
if( ! sm_ftpSocket->configure( sm_address, sm_port ) )
{
SM_Util::msg_err( "Error: could not connect to server." );
delete sm_ftpSocket;
sm_ftpSocket = NULL;
return false;
}
if( ! sm_ftpSocket->user_conf( sm_download->user, sm_download->pass ) )
{
SM_Util::msg_err( "Error: could not authenticate." );
delete sm_ftpSocket;
sm_ftpSocket = NULL;
return false;
}
if( ! sm_ftpSocket->set_type( true ) )
{
SM_Util::msg_err( "Error: could not set connection type." );
delete sm_ftpSocket;
sm_ftpSocket = NULL;
return false;
}
if( ! donwload )
{
running = true;
sm_ftpSocket->set_speedLimit( sm_speedLimit );
bool get_return;
if( replace && get_comSize() == 0 )
get_return = sm_ftpSocket->get_file( sm_download, sm_fileName, sm_path, 0, replace );
else
get_return = sm_ftpSocket->get_file( sm_download, sm_fileName, sm_path, sm_size, replace );
running = false;
if( get_return )
{
delete sm_ftpSocket;
sm_ftpSocket = NULL;
if( isCompleted() )
sm_signal_completed( this );
else
sm_signal_paused( this );
return true;
}
else
{
SM_Util::msg_err( "Error: could not make download." );
if( ! sm_ftpSocket->quit() )
SM_Util::msg_err( "Error: could not quit connection." );
delete sm_ftpSocket;
sm_ftpSocket = NULL;
return false;
}
}
delete sm_ftpSocket;
sm_ftpSocket = NULL;
return true;
}
else
{
SM_Util::msg_err( "Error: network protocol not supported." );
return false;
}
}