void
CommandShell(void)
{
int tUsed, bUsed;
ArgvInfo ai;
char prompt[64];
char *lineRead;
#if defined(WIN32) || defined(_WINDOWS)
#else
int sj;
#endif
time_t cmdStart, cmdStop;
/* Execution may jump back to this point to restart the shell. */
#if defined(WIN32) || defined(_WINDOWS)
#elif defined(HAVE_SIGSETJMP)
sj = sigsetjmp(gBackToTopJmp, 1);
#else /* HAVE_SIGSETJMP */
sj = setjmp(gBackToTopJmp);
#endif /* HAVE_SIGSETJMP */
#if defined(WIN32) || defined(_WINDOWS)
#else
if (sj != 0) {
Trace(0, "Caught signal %d, back at top.\n", gGotSig);
if (gGotSig == SIGALRM) {
(void) printf("\nRemote host was not responding, closing down the session.");
FTPShutdownHost(&gConn);
} else{
(void) printf("\nInterrupted.\n");
if (gCancelCtrl != 0) {
gCancelCtrl = 0;
(void) printf("Closing down the current FTP session: ");
FTPShutdownHost(&gConn);
(void) sleep(1);
(void) printf("done.\n");
}
}
}
gMayBackToTopJmp = 1;
#endif
++gEventNumber;
while (gDoneApplication == 0) {
#if defined(WIN32) || defined(_WINDOWS)
#else
(void) NcSignal(SIGINT, BackToTop);
(void) NcSignal(SIGPIPE, BackToTop);
(void) NcSignal(SIGALRM, BackToTop);
#endif
MakePrompt(prompt, sizeof(prompt));
if (gConn.connected == 0) {
SetXtermTitle("DEFAULT");
} else {
SetXtermTitle("%s - NcFTP", gConn.host);
}
lineRead = Readline(prompt);
if (lineRead == NULL) {
/* EOF, Control-D */
(void) printf("\n");
break;
}
Trace(0, "> %s\n", lineRead);
AddHistory(lineRead);
for (tUsed = 0;;) {
(void) memset(&ai, 0, sizeof(ai));
bUsed = MakeArgv(lineRead + tUsed, &ai.cargc, ai.cargv,
(int) (sizeof(ai.cargv) / sizeof(char *)),
ai.argbuf, sizeof(ai.argbuf),
ai.noglobargv, 0);
if (bUsed <= 0)
break;
tUsed += bUsed;
if (ai.cargc == 0)
continue;
gRunningCommand = 1;
(void) time(&cmdStart);
if (DoCommand(&ai) < 0) {
(void) time(&cmdStop);
gRunningCommand = 0;
break;
}
(void) time(&cmdStop);
gRunningCommand = 0;
if ((cmdStop - cmdStart) > kBeepAfterCmdTime) {
/* Let the user know that a time-consuming
* operation has completed.
*/
#if defined(WIN32) || defined(_WINDOWS)
MessageBeep(MB_OK);
#else
(void) fprintf(stderr, "\007");
#endif
}
++gEventNumber;
}
free(lineRead);
}
CloseHost();
gMayBackToTopJmp = 0;
} /* Shell */
void
GetScreenColumns(void)
{
#if defined(WIN32) || defined(_WINDOWS)
CONSOLE_SCREEN_BUFFER_INFO csbi;
if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi)) {
gScreenColumns = (int) csbi.dwSize.X;
if (gScreenColumns < 80)
gScreenColumns = 80;
}
#else /* Unix */
#ifdef BINDIR
char ncftpbookmarks[256];
FILE *infp;
vsigproc_t osigpipe;
int columns;
#endif /* BINDIR */
char *cp;
if ((cp = (char *) getenv("COLUMNS")) == NULL) {
gScreenColumns = 80;
} else {
gScreenColumns = atoi(cp);
return;
}
#ifdef TIOCGWINSZ
{
struct winsize felix;
memset(&felix, 0, sizeof(felix));
if (ioctl(0, TIOCGWINSZ, &felix) == 0) {
columns = felix.ws_col;
if ((columns > 0) && (columns < GL_BUF_SIZE))
gScreenColumns = columns;
else
gScreenColumns = 80;
return;
}
}
#endif
#ifdef BINDIR
/* Don't run things as root unless really necessary. */
if (gUid == 0)
return;
/* This is a brutal hack where we've hacked a
* special command line option into ncftp_bookmarks
* (which is linked with curses) so that it computes
* the screen size and prints it to stdout.
*
* This function runs ncftp_bookmarks and gets
* that information. The reason we do this is that
* we may or may not have a sane installation of
* curses/termcap, and we don't want to increase
* NcFTP's complexity by the curses junk just to
* get the screen size. Instead, we delegate this
* to ncftp_bookmarks which already deals with the
* ugliness of curses.
*/
STRNCPY(ncftpbookmarks, BINDIR);
STRNCAT(ncftpbookmarks, "/");
STRNCAT(ncftpbookmarks, "ncftpbookmarks");
if (access(ncftpbookmarks, X_OK) < 0)
return;
STRNCAT(ncftpbookmarks, " --dimensions-terse");
osigpipe = NcSignal(SIGPIPE, SIG_IGN);
infp = popen(ncftpbookmarks, "r");
if (infp != NULL) {
columns = 0;
(void) fscanf(infp, "%d", &columns);
while (getc(infp) != EOF) {}
(void) pclose(infp);
if ((columns > 0) && (columns < GL_BUF_SIZE))
gScreenColumns = columns;
}
(void) NcSignal(SIGPIPE, (sigproc_t) osigpipe);
#endif /* BINDIR */
#endif /* Windows */
} /* GetScreenColumns */
/* Runs the host editor. Another big use for this is to open sites
* that are in your host list.
*/
int HostWindow(void)
{
int c;
char cmd[256];
volatile BookmarkPtr toOpen;
vsigproc_t si;
int maxy, maxx;
int lmaxy;
si = (sigproc_t) (-1);
if (gWinInit) {
gHostListWin = NULL;
gHostWin = NULL;
gHostWin = newwin(LINES, COLS, 0, 0);
if (gHostWin == NULL)
return (-1);
curs_set(0);
cbreak();
/* Set the clear flag for the first update. */
wclear(gHostWin);
keypad(gHostWin, TRUE); /* For arrow keys. */
#ifdef HAVE_NOTIMEOUT
notimeout(gHostWin, TRUE);
#endif
#ifdef HAVE_SIGSETJMP
if (sigsetjmp(gHostWinJmp, 1) == 0) {
#else /* HAVE_SIGSETJMP */
if (setjmp(gHostWinJmp) == 0) {
#endif /* HAVE_SIGSETJMP */
/* Gracefully cleanup the screen if the user ^C's. */
si = NcSignal(SIGINT, SigIntHostWin);
/* Initialize the page start and select a host to be
* the current one.
*/
gHostListWinStart = 0;
gHilitedHost = 0;
if (gNumBookmarks == 0)
gCurHostListItem = NULL;
else
gCurHostListItem = &gBookmarkTable[gHilitedHost];
/* Initially, we don't want to connect to any site in
* the host list.
*/
toOpen = NULL;
getmaxyx(gHostWin, maxy, maxx);
WAttr(gHostWin, kBold, 1);
WAddCenteredStr(gHostWin, 0, "NcFTP Bookmark Editor");
WAttr(gHostWin, kBold, 0);
DrawStrAt(gHostWin, 3, 2, "Open selected site: <enter>");
DrawStrAt(gHostWin, 4, 2, "Edit selected site: /ed");
DrawStrAt(gHostWin, 5, 2, "Delete selected site: /del");
DrawStrAt(gHostWin, 6, 2, "Duplicate selected site: /dup");
DrawStrAt(gHostWin, 7, 2, "Add a new site: /new");
DrawStrAt(gHostWin, 9, 2, "Up one: <u>");
DrawStrAt(gHostWin, 10, 2, "Down one: <d>");
DrawStrAt(gHostWin, 11, 2, "Previous page: <p>");
DrawStrAt(gHostWin, 12, 2, "Next page: <n>");
DrawStrAt(gHostWin, 14, 2, "Capital letters selects first");
DrawStrAt(gHostWin, 15, 2, " site starting with the letter.");
DrawStrAt(gHostWin, 17, 2, "Exit the bookmark editor: <x>");
/* Initialize the scrolling host list window. */
if (maxx < 110) {
gHostListWinWide = 0;
gHostListWin = subwin(
gHostWin,
LINES - 7,
40,
3,
COLS - 40 - 2
);
} else {
gHostListWinWide = COLS - 42;
gHostListWin = subwin(
gHostWin,
LINES - 7,
gHostListWinWide,
3,
38
);
}
if (gHostListWin == NULL)
return (-1);
lmaxy = getmaxy(gHostListWin);
gHostListPageSize = lmaxy;
DrawHostList();
wmove(gHostWin, maxy - 1, 0);
UpdateHostWindows(1);
for (;;) {
c = HostWinGetKey();
if (gNeedToClearMsg) {
wmove(gHostWin, maxy - 2, 0);
wclrtoeol(gHostWin);
wrefresh(gHostWin);
}
if ((c >= 'A') && (c <= 'Z')) {
/* isupper can coredump if wgetch returns a meta key. */
HostWinZoomTo(c);
} else if (c == '/') {
/* Get an "extended" command. Sort of like vi's
* :colon commands.
*/
HostWinGetStr(cmd, sizeof(cmd));
if (ISTREQ(cmd, "ed"))
HostWinEdit();
else if (ISTREQ(cmd, "dup"))
HostWinDup();
else if (ISTREQ(cmd, "del"))
HostWinDelete();
else if (ISTREQ(cmd, "new"))
HostWinNew();
else
HostWinMsg("Invalid bookmark editor command.");
} else switch(c) {
case 10: /* ^J == newline */
goto enter;
case 13: /* ^M == carriage return */
goto enter;
#ifdef KEY_ENTER
case KEY_ENTER:
Trace(1, " [0x%04X, %s]\n", c, "ENTER");
#endif
enter:
if (gCurHostListItem == NULL)
HostWinMsg("Nothing to open. Try 'open sitename' from the main screen.");
else {
toOpen = (BookmarkPtr) gCurHostListItem;
goto done;
}
break;
case kControl_L:
UpdateHostWindows(1);
break;
case 'u':
case 'k': /* vi up key */
case 'h': /* vi left key */
HostListLineUp();
break;
#ifdef KEY_UP
case KEY_UP:
Trace(1, " [0x%04X, %s]\n", c, "UP");
HostListLineUp();
break;
#endif
#ifdef KEY_LEFT
case KEY_LEFT:
Trace(1, " [0x%04X, %s]\n", c, "LEFT");
HostListLineUp();
break;
#endif
case 'd':
case 'j': /* vi down key */
case 'l': /* vi right key */
HostListLineDown();
break;
#ifdef KEY_DOWN
case KEY_DOWN:
Trace(1, " [0x%04X, %s]\n", c, "DOWN");
HostListLineDown();
break;
#endif
#ifdef KEY_RIGHT
case KEY_RIGHT:
Trace(1, " [0x%04X, %s]\n", c, "RIGHT");
HostListLineDown();
break;
#endif
case 'p':
HostListPageUp();
break;
#ifdef KEY_PPAGE
case KEY_PPAGE:
Trace(1, " [0x%04X, %s]\n", c, "PPAGE");
HostListPageUp();
break;
#endif
case 'n':
HostListPageDown();
break;
#ifdef KEY_NPAGE
case KEY_NPAGE:
Trace(1, " [0x%04X, %s]\n", c, "NPAGE");
HostListPageDown();
break;
#endif
case 'x':
case 'q':
goto done;
default:
HostWinMsg("Invalid key.");
Trace(1, " [0x%04X, %s]\n", c, "<invalid>");
break;
}
}
}
NcSignal(SIGINT, (FTPSigProc) SIG_IGN);
done:
if (gHostListWin != NULL)
delwin(gHostListWin);
if (gHostWin != NULL)
delwin(gHostWin);
gHostListWin = gHostWin = NULL;
if (si != (sigproc_t) (-1))
NcSignal(SIGINT, si);
if (toOpen != (BookmarkPtr) 0) {
/* If the user selected a site to open, connect to it now. */
if (gStandAlone != 0) {
LaunchNcFTP(toOpen->bookmarkName);
/*NOTREACHED*/
Exit(0);
} else if (gBookmarkSelectionFile != NULL) {
WriteSelectedBMToFile(toOpen->bookmarkName);
}
return (kNoErr);
}
}
return (kNoErr);
} /* HostWindow */
main_void_return_t
main(int argc, const char **argv)
{
int result;
int argi;
gStandAlone = 1;
gBookmarkSelectionFile = NULL;
InitUserInfo();
if (LoadBookmarkTable() < 0) {
exit(7);
}
if (argc > 1) {
/* The following hack is used by NcFTP
* to get the number of columns without
* having to link with curses/termcap.
* This simplifies things since the
* system may or may not have a good
* curses implementation, and we don't
* want to complicate NcFTP itself with
* that.
*/
argi = 1;
if (strcmp(argv[1], "--dimensions") == 0) {
result = PrintDimensions(0);
exit((result == 0) ? 0 : 1);
} else if (strcmp(argv[1], "--dimensions-terse") == 0) {
result = PrintDimensions(1);
exit((result == 0) ? 0 : 1);
} else if (strcmp(argv[1], "--debug") == 0) {
SetDebug(1);
argi++;
}
/* Requested that we were run from ncftp. */
gStandAlone = 0;
if ((argc > argi) && (argv[argi][0] == '/'))
gBookmarkSelectionFile = (const char *) argv[argi];
if (gNumBookmarks < 1)
exit(7);
}
result = FTPInitLibrary(&gLib);
if (result < 0) {
(void) fprintf(stderr, "ncftp: init library error %d (%s).\n", result, FTPStrError(result));
exit(1);
}
result = FTPInitConnectionInfo(&gLib, &gConn, kDefaultFTPBufSize);
if (result < 0) {
(void) fprintf(stderr, "ncftp: init connection info error %d (%s).\n", result, FTPStrError(result));
exit(1);
}
if (gDebug > 0)
OpenTrace();
InitPrefs();
LoadFirewallPrefs(0);
LoadPrefs();
InitWindows();
Trace(1, "Terminal size is %d columns by %d rows.\n", gScreenWidth, gScreenHeight);
HostWindow();
if (gDebug > 0)
CloseTrace();
EndWin();
exit(0);
} /* main */
