/*
* winsftp.c: the Windows-specific parts of PSFTP and PSCP.
*/
#include "putty.h"
#include "psftp.h"
/* ----------------------------------------------------------------------
* Interface to GUI driver program.
*/
/* This is just a base value from which the main message numbers are
* derived. */
#define WM_APP_BASE 0x8000
/* These two pass a single character value in wParam. They represent
* the visible output from PSCP. */
#define WM_STD_OUT_CHAR ( WM_APP_BASE+400 )
#define WM_STD_ERR_CHAR ( WM_APP_BASE+401 )
/* These pass a transfer status update. WM_STATS_CHAR passes a single
* character in wParam, and is called repeatedly to pass the name of
* the file, terminated with "\n". WM_STATS_SIZE passes the size of
* the file being transferred in wParam. WM_STATS_ELAPSED is called
* to pass the elapsed time (in seconds) in wParam, and
* WM_STATS_PERCENT passes the percentage of the transfer which is
* complete, also in wParam. */
#define WM_STATS_CHAR ( WM_APP_BASE+402 )
#define WM_STATS_SIZE ( WM_APP_BASE+403 )
#define WM_STATS_PERCENT ( WM_APP_BASE+404 )
#define WM_STATS_ELAPSED ( WM_APP_BASE+405 )
/* These are used at the end of a run to pass an error code in
* wParam: zero means success, nonzero means failure. WM_RET_ERR_CNT
* is used after a copy, and WM_LS_RET_ERR_CNT is used after a file
* list operation. */
#define WM_RET_ERR_CNT ( WM_APP_BASE+406 )
#define WM_LS_RET_ERR_CNT ( WM_APP_BASE+407 )
/* More transfer status update messages. WM_STATS_DONE passes the
* number of bytes sent so far in wParam. WM_STATS_ETA passes the
* estimated time to completion (in seconds). WM_STATS_RATEBS passes
* the average transfer rate (in bytes per second). */
#define WM_STATS_DONE ( WM_APP_BASE+408 )
#define WM_STATS_ETA ( WM_APP_BASE+409 )
#define WM_STATS_RATEBS ( WM_APP_BASE+410 )
#define NAME_STR_MAX 2048
static char statname[NAME_STR_MAX + 1];
static unsigned long statsize = 0;
static unsigned long statdone = 0;
static unsigned long stateta = 0;
static unsigned long statratebs = 0;
static int statperct = 0;
static unsigned long statelapsed = 0;
static HWND gui_hwnd = NULL;
static void send_msg(HWND h, UINT message, WPARAM wParam)
{
while (!PostMessage(h, message, wParam, 0))
SleepEx(1000, TRUE);
}
void gui_send_char(int is_stderr, int c)
{
unsigned int msg_id = WM_STD_OUT_CHAR;
if (is_stderr)
msg_id = WM_STD_ERR_CHAR;
send_msg(gui_hwnd, msg_id, (WPARAM) c);
}
void gui_send_errcount(int list, int errs)
{
unsigned int msg_id = WM_RET_ERR_CNT;
if (list)
msg_id = WM_LS_RET_ERR_CNT;
while (!PostMessage(gui_hwnd, msg_id, (WPARAM) errs, 0))
SleepEx(1000, TRUE);
}
void gui_update_stats(char *name, unsigned long size,
int percentage, unsigned long elapsed,
unsigned long done, unsigned long eta,
unsigned long ratebs)
{
unsigned int i;
if (strcmp(name, statname) != 0) {
for (i = 0; i < strlen(name); ++i)
send_msg(gui_hwnd, WM_STATS_CHAR, (WPARAM) name[i]);
send_msg(gui_hwnd, WM_STATS_CHAR, (WPARAM) '\n');
strcpy(statname, name);
}
if (statsize != size) {
send_msg(gui_hwnd, WM_STATS_SIZE, (WPARAM) size);
statsize = size;
}
if (statdone != done) {
send_msg(gui_hwnd, WM_STATS_DONE, (WPARAM) done);
statdone = done;
}
if (stateta != eta) {
send_msg(gui_hwnd, WM_STATS_ETA, (WPARAM) eta);
stateta = eta;
}
if (statratebs != ratebs) {
send_msg(gui_hwnd, WM_STATS_RATEBS, (WPARAM) ratebs);
statratebs = ratebs;
}
if (statelapsed != elapsed) {
send_msg(gui_hwnd, WM_STATS_ELAPSED, (WPARAM) elapsed);
statelapsed = elapsed;
}
if (statperct != percentage) {
send_msg(gui_hwnd, WM_STATS_PERCENT, (WPARAM) percentage);
statperct = percentage;
}
}
void gui_enable(char *arg)
{
gui_hwnd = (HWND) atoi(arg);
}
/* ----------------------------------------------------------------------
* File access abstraction.
*/
/*
* Set local current directory. Returns NULL on success, or else an
* error message which must be freed after printing.
*/
char *psftp_lcd(char *dir)
{
char *ret = NULL;
if (!SetCurrentDirectory(dir)) {
LPVOID message;
int i;
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&message, 0, NULL);
i = strcspn((char *)message, "\n");
ret = dupprintf("%.*s", i, (LPCTSTR)message);
LocalFree(message);
}
return ret;
}
/*
* Get local current directory. Returns a string which must be
* freed.
*/
char *psftp_getcwd(void)
{
char *ret = snewn(256, char);
int len = GetCurrentDirectory(256, ret);
if (len > 256)
ret = sresize(ret, len, char);
GetCurrentDirectory(len, ret);
return ret;
}
#define TIME_POSIX_TO_WIN(t, ft) (*(LONGLONG*)&(ft) = \
((LONGLONG) (t) + (LONGLONG) 11644473600) * (LONGLONG) 10000000)
#define TIME_WIN_TO_POSIX(ft, t) ((t) = (unsigned long) \
((*(LONGLONG*)&(ft)) / (LONGLONG) 10000000 - (LONGLONG) 11644473600))
struct RFile {
HANDLE h;
};
RFile *open_existing_file(char *name, unsigned long *size,
unsigned long *mtime, unsigned long *atime)
{
HANDLE h;
RFile *ret;
h = CreateFile(name, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, 0, 0);
if (h == INVALID_HANDLE_VALUE)
return NULL;
ret = snew(RFile);
ret->h = h;
if (size)
*size = GetFileSize(h, NULL);
if (mtime || atime) {
FILETIME actime, wrtime;
GetFileTime(h, NULL, &actime, &wrtime);
if (atime)
TIME_WIN_TO_POSIX(actime, *atime);
if (mtime)
TIME_WIN_TO_POSIX(wrtime, *mtime);
}
return ret;
}
int read_from_file(RFile *f, void *buffer, int length)
{
int ret, read;
ret = ReadFile(f->h, buffer, length, &read, NULL);
if (!ret)
return -1; /* error */
else
return read;
}
void close_rfile(RFile *f)
{
CloseHandle(f->h);
sfree(f);
}
struct WFile {
HANDLE h;
};
WFile *open_new_file(char *name)
{
HANDLE h;
WFile *ret;
h = CreateFile(name, GENERIC_WRITE, 0, NULL,
CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
if (h == INVALID_HANDLE_VALUE)
return NULL;
ret = snew(WFile);
ret->h = h;
return ret;
}
int write_to_file(WFile *f, void *buffer, int length)
{
int ret, written;
ret = WriteFile(f->h, buffer, length, &written, NULL);
if (!ret)
return -1; /* error */
else
return written;
}
void set_file_times(WFile *f, unsigned long mtime, unsigned long atime)
{
FILETIME actime, wrtime;
TIME_POSIX_TO_WIN(atime, actime);
TIME_POSIX_TO_WIN(mtime, wrtime);
SetFileTime(f->h, NULL, &actime, &wrtime);
}
void close_wfile(WFile *f)
{
CloseHandle(f->h);
sfree(f);
}
int file_type(char *name)
{
DWORD attr;
attr = GetFileAttributes(name);
/* We know of no `weird' files under Windows. */
if (attr == (DWORD)-1)
return FILE_TYPE_NONEXISTENT;
else if (attr & FILE_ATTRIBUTE_DIRECTORY)
return FILE_TYPE_DIRECTORY;
else
return FILE_TYPE_FILE;
}
struct DirHandle {
HANDLE h;
char *name;
};
DirHandle *open_directory(char *name)
{
HANDLE h;
WIN32_FIND_DATA fdat;
char *findfile;
DirHandle *ret;
/* To enumerate files in dir `foo', we search for `foo/*'. */
findfile = dupcat(name, "/*", NULL);
h = FindFirstFile(findfile, &fdat);
if (h == INVALID_HANDLE_VALUE)
return NULL;
sfree(findfile);
ret = snew(DirHandle);
ret->h = h;
ret->name = dupstr(fdat.cFileName);
return ret;
}
char *read_filename(DirHandle *dir)
{
while (!dir->name) {
WIN32_FIND_DATA fdat;
int ok = FindNextFile(dir->h, &fdat);
if (!ok)
return NULL;
if (fdat.cFileName[0] == '.' &&
(fdat.cFileName[1] == '\0' ||
(fdat.cFileName[1] == '.' && fdat.cFileName[2] == '\0')))
dir->name = NULL;
else
dir->name = dupstr(fdat.cFileName);
}
if (dir->name) {
char *ret = dir->name;
dir->name = NULL;
return ret;
} else
return NULL;
}
void close_directory(DirHandle *dir)
{
FindClose(dir->h);
if (dir->name)
sfree(dir->name);
sfree(dir);
}
int test_wildcard(char *name, int cmdline)
{
HANDLE fh;
WIN32_FIND_DATA fdat;
/* First see if the exact name exists. */
if (GetFileAttributes(name) != (DWORD)-1)
return WCTYPE_FILENAME;
/* Otherwise see if a wildcard match finds anything. */
fh = FindFirstFile(name, &fdat);
if (fh == INVALID_HANDLE_VALUE)
return WCTYPE_NONEXISTENT;
FindClose(fh);
return WCTYPE_WILDCARD;
}
struct WildcardMatcher {
HANDLE h;
char *name;
char *srcpath;
};
/*
* Return a pointer to the portion of str that comes after the last
* slash (or backslash or colon, if `local' is TRUE).
*/
static char *stripslashes(char *str, int local)
{
char *p;
if (local) {
p = strchr(str, ':');
if (p) str = p+1;
}
p = strrchr(str, '/');
if (p) str = p+1;
if (local) {
p = strrchr(str, '\\');
if (p) str = p+1;
}
return str;
}
WildcardMatcher *begin_wildcard_matching(char *name)
{
HANDLE h;
WIN32_FIND_DATA fdat;
WildcardMatcher *ret;
char *last;
h = FindFirstFile(name, &fdat);
if (h == INVALID_HANDLE_VALUE)
return NULL;
ret = snew(WildcardMatcher);
ret->h = h;
ret->srcpath = dupstr(name);
last = stripslashes(ret->srcpath, 1);
*last = '\0';
if (fdat.cFileName[0] == '.' &&
(fdat.cFileName[1] == '\0' ||
(fdat.cFileName[1] == '.' && fdat.cFileName[2] == '\0')))
ret->name = NULL;
else
ret->name = dupcat(ret->srcpath, fdat.cFileName, NULL);
return ret;
}
char *wildcard_get_filename(WildcardMatcher *dir)
{
while (!dir->name) {
WIN32_FIND_DATA fdat;
int ok = FindNextFile(dir->h, &fdat);
if (!ok)
return NULL;
if (fdat.cFileName[0] == '.' &&
(fdat.cFileName[1] == '\0' ||
(fdat.cFileName[1] == '.' && fdat.cFileName[2] == '\0')))
dir->name = NULL;
else
dir->name = dupcat(dir->srcpath, fdat.cFileName, NULL);
}
if (dir->name) {
char *ret = dir->name;
dir->name = NULL;
return ret;
} else
return NULL;
}
void finish_wildcard_matching(WildcardMatcher *dir)
{
FindClose(dir->h);
if (dir->name)
sfree(dir->name);
sfree(dir->srcpath);
sfree(dir);
}
int create_directory(char *name)
{
return CreateDirectory(name, NULL) != 0;
}
char *dir_file_cat(char *dir, char *file)
{
return dupcat(dir, "\\", file, NULL);
}
/* ----------------------------------------------------------------------
* Platform-specific network handling.
*/
/*
* Be told what socket we're supposed to be using.
*/
static SOCKET sftp_ssh_socket;
char *do_select(SOCKET skt, int startup)
{
if (startup)
sftp_ssh_socket = skt;
else
sftp_ssh_socket = INVALID_SOCKET;
return NULL;
}
extern int select_result(WPARAM, LPARAM);
/*
* Wait for some network data and process it.
*/
int ssh_sftp_loop_iteration(void)
{
fd_set readfds;
if (sftp_ssh_socket == INVALID_SOCKET)
return -1; /* doom */
FD_ZERO(&readfds);
FD_SET(sftp_ssh_socket, &readfds);
if (p_select(1, &readfds, NULL, NULL, NULL) < 0)
return -1; /* doom */
select_result((WPARAM) sftp_ssh_socket, (LPARAM) FD_READ);
return 0;
}
/* ----------------------------------------------------------------------
* Main program. Parse arguments etc.
*/
int main(int argc, char *argv[])
{
int ret;
ret = psftp_main(argc, argv);
return ret;
}