/* Send data through socket
* @param socket: file descriptor of client
* @param filename: name of the file
* @param fdout: file descriptor to write
*
* @return: 0 on success. Error code otherwise
*/
int send_data(int socket, char filename[], int fdout) {
struct stat file_stat;
char type = END;
if (stat(filename, &file_stat) < 0)
return -1;
if (file_stat.st_mode & S_IFDIR) {
send_dir(socket, filename, search_root(filename), fdout);
write(socket, &type, sizeof(char));
} else if (file_stat.st_mode & S_IFREG || file_stat.st_mode & S_IFLNK) {
send_file(socket, filename, search_root(filename), fdout);
write(socket, &type, sizeof(char));
} else {
dprintf(fdout, "It can't be sended that kind of file\n");
dprintf(fdout, "Quitting...\n");
return -1;
}
dprintf(fdout, "\nSe han enviado: - %d directorios\n", DIR_S);
dprintf(fdout, " - %d archivos\n", FILES_S);
dprintf(fdout, "\nTransferencia realizada con éxito.\n");
write_to(socket, &DIR_S, sizeof(int));
write_to(socket, &FILES_S, sizeof(int));
return 0;
}
/* Send file through socket
* @param socket: file descriptor of client
* @param filename: name of the file
* @param position: index of the filename in absolute path
* @param fdout: file descriptor to write
*
* @return: 0 on success. Error code otherwise
*/
int send_dir(int socket, char *dir_name, int position, int fdout) {
DIR *d = NULL;
send_file(socket, dir_name, position, fdout);
/* Check it was opened. -1 on error */
if (!(d = opendir (dir_name))) {
fprintf (stderr, "Cannot open directory '%s': %s\n", \
dir_name, strerror (errno));
return -1;
} else {
while (TRUE) {
struct dirent *d_struct;
char name[PATH_MAX];
/* readdir gets subsequent entries from "d" until the end (NULL) */
if ((d_struct = readdir(d))) {
sprintf(name, "%s%s", dir_name, d_struct->d_name);
if (d_struct->d_type == DT_DIR) {
if (strcmp(d_struct->d_name, ".") && \
strcmp(d_struct->d_name, "..")) {
sprintf(name, "%s%s/", dir_name, d_struct->d_name);
send_dir(socket, name, position, fdout);
} else
/* SEE THIS */
sprintf(name, "%s%s", dir_name, d_struct->d_name);
} else
send_file(socket, name, position, fdout);
} else
break;
}
if (closedir(d)) {
fprintf (stderr, "Could not close '%s': %s\n", \
dir_name, strerror (errno));
exit (EXIT_FAILURE);
}
}
return 0;
}
void send_node(per_request *reqInfo)
{
struct stat finfo;
register x = 0;
int allow;
char allow_options;
int ErrReturn = 0;
exit_callback = NULL;
/* It is no longer necessary to move all but one of the trailing slashes
* to the path_info string, since all multiple slashes are now compressed
* to one as a security precaution.
*/
if(stat(reqInfo->filename,&finfo) == -1) {
ErrReturn = extract_path_info(reqInfo,&finfo);
}
evaluate_access(reqInfo,&finfo,&allow,&allow_options);
if (ErrReturn) {
if(ErrReturn == ENOENT) {
log_reason(reqInfo,"file does not exist",reqInfo->filename);
die(reqInfo,SC_NOT_FOUND,reqInfo->url);
/* Check for AFS/NFS problems, and send back an unavailable message instead
* Larry Schwimmer ([email protected])
*/
} else if ((ErrReturn == ETIMEDOUT) || (ErrReturn == ENODEV)) {
log_reason(reqInfo, "file temporarily unavailable",
reqInfo->filename);
die(reqInfo,SC_SERVICE_UNAVAIL,reqInfo->url);
} else {
log_reason(reqInfo,"(3) file permissions deny server access",
reqInfo->filename);
die(reqInfo,SC_FORBIDDEN,reqInfo->url);
}
}
if(!allow) {
log_reason(reqInfo,"client denied by server configuration",
reqInfo->filename);
die(reqInfo,SC_FORBIDDEN,reqInfo->url);
}
if (S_ISDIR(finfo.st_mode)) {
send_dir(reqInfo,&finfo,allow_options);
} else if (S_ISREG(finfo.st_mode)) {
x = strlen(reqInfo->filename);
/* Remove the trailing slash if its not a directory */
if (reqInfo->filename[x-1] == '/') {
if (reqInfo->path_info[0] == '\0') {
reqInfo->path_info[0] = '/';
reqInfo->path_info[1] = '\0';
}
reqInfo->filename[x-1] = '\0';
}
probe_content_type(reqInfo,reqInfo->filename);
if (!strcmp(reqInfo->outh_content_type, CGI_MAGIC_TYPE))
send_cgi(reqInfo,&finfo,allow_options);
#ifdef IMAGEMAP_SUPPORT
else if (!strcmp(reqInfo->outh_content_type, IMAGEMAP_MAGIC_TYPE))
send_imagemap(reqInfo,&finfo,allow_options);
#endif /* IMAGEMAP_SUPPORT */
#ifdef FCGI_SUPPORT
else if (!strcmp(reqInfo->outh_content_type, FCGI_MAGIC_TYPE))
FastCgiHandler(reqInfo);
#endif /* FCGI_SUPPORT */
else
send_file(reqInfo,&finfo,allow_options);
} else {
log_reason(reqInfo,"improper file type",reqInfo->filename);
/* device driver or pipe, no permission */
die(reqInfo,SC_FORBIDDEN,reqInfo->url);
}
}
int main(int argc , char* argv[])//exe ip port
{
signal(13,SIG_IGN);
signal(17,sig_handle);
if(argc != 3)
{
printf("usge : exe ip port");
exit(-1);
}
int fd_server ,fd_client;
struct sockaddr_in client_addr ;
int addrlen = sizeof(client_addr);
fd_server = listenfd_init(argv[1],argv[2]);
while( (fd_client = accept(fd_server,(struct sockaddr*)&client_addr,&addrlen) ) > 0 )
{
if(fd_client == -1)
{
if(errno == EINTR)
{
continue ;
}
}
printf("a client connect :%s:%d\n",inet_ntoa(client_addr.sin_addr),ntohs(client_addr.sin_port));
if(fork() == 0)
{
close(fd_server);
char comd[1024];
//circle recv msg
while(1)
{
fflush(stdout);
char sign[32];
bzero(comd, 1024);
recv_command(fd_client,comd);
printf("comd:%s\n", comd);
if(strncmp(comd, "ls", 2) == 0)
{
send_dir(fd_client);
}
else if(strncmp(comd, "download", 8) == 0)
{
ul_file(fd_client);
}
else if(strncmp(comd, "cd", 2) == 0)
{
send_path(fd_client, comd);
}
else if(strncmp(comd, "rm", 2) == 0)
{
system(comd);
}
else if(strncmp(comd, "upload", 6) == 0)
{
dl_file(fd_client);
}
else if(strncmp(comd, "cl", 2) == 0)
{
system("clear");
}
}
exit(0);
}
}
}
