[thirdparty/newt.git] / whiptail.c

#include "config.h"
#include <fcntl.h>
#include <popt.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
#include <wchar.h>
#include <slang.h>
#include <sys/stat.h>

#include "nls.h"
#include "dialogboxes.h"
#include "newt.h"
#include "newt_pr.h"

enum { NO_ERROR = 0, WAS_ERROR = 1 };

enum mode { MODE_NONE, MODE_INFOBOX, MODE_MSGBOX, MODE_YESNO, MODE_CHECKLIST,
		MODE_INPUTBOX, MODE_RADIOLIST, MODE_MENU, MODE_GAUGE ,
		MODE_TEXTBOX, MODE_PASSWORDBOX};

#define OPT_MSGBOX 		1000
#define OPT_CHECKLIST 		1001
#define OPT_YESNO 		1002
#define OPT_INPUTBOX 		1003
#define OPT_FULLBUTTONS 	1004
#define OPT_MENU	 	1005
#define OPT_RADIOLIST	 	1006
#define OPT_GAUGE	 	1007
#define OPT_INFOBOX	 	1008
#define OPT_TEXTBOX		1009
#define OPT_PASSWORDBOX		1010

static void usage(int err) {
    newtFinished();
    fprintf (err ? stderr : stdout,
             _("Box options: \n"
	       "\t--msgbox <text> <height> <width>\n"
	       "\t--yesno  <text> <height> <width>\n"
	       "\t--infobox <text> <height> <width>\n"
	       "\t--inputbox <text> <height> <width> [init] \n"
	       "\t--passwordbox <text> <height> <width> [init] \n"
	       "\t--textbox <file> <height> <width>\n"
	       "\t--menu <text> <height> <width> <listheight> [tag item] ...\n"
	       "\t--checklist <text> <height> <width> <listheight> [tag item status]...\n"
	       "\t--radiolist <text> <height> <width> <listheight> [tag item status]...\n"
	       "\t--gauge <text> <height> <width> <percent>\n"
	       "Options: (depend on box-option)\n"
	       "\t--clear				clear screen on exit\n"
	       "\t--defaultno			default no button\n"	
	       "\t--default-item <string>		set default string\n"
	       "\t--fb, --fullbuttons		use full buttons\n"
	       "\t--nocancel			no cancel button\n"
	       "\t--yes-button <text>		set text of yes button\n"
	       "\t--no-button <text>		set text of no button\n"
	       "\t--ok-button <text>		set text of ok button\n"
	       "\t--cancel-button <text>		set text of cancel button\n"
	       "\t--noitem			don't display items\n"
	       "\t--notags			don't display tags\n"
	       "\t--separate-output		output one line at a time\n"
	       "\t--output-fd <fd>		output to fd, not stdout\n"
	       "\t--title <title>			display title\n"
	       "\t--backtitle <backtitle>		display backtitle\n"
	       "\t--scrolltext			force vertical scrollbars\n"
	       "\t--topleft			put window in top-left corner\n"
	       "\t-h, --help			print this message\n"
	       "\t-v, --version			print version information\n\n"));
    exit(err ? DLG_ERROR : 0 );
}

static void print_version(void) {
    fprintf (stdout, _("whiptail (newt): %s\n"), VERSION);
}
	     
#if 0
/* FIXME Copied from newt.c
 * Place somewhere better -- dialogboxes? -- amck
 */
int wstrlen(const char *str, int len) {
       mbstate_t ps;
       wchar_t tmp;
       int nchars = 0;

       if (!str) return 0;
      if (!len) return 0;
       if (len < 0) len = strlen(str);
      memset(&ps,0,sizeof(mbstate_t));
       while (len > 0) {
               int x,y;

               x = mbrtowc(&tmp,str,len,&ps);
               if (x >0) {
                       str += x;
                       len -= x;
                       y = wcwidth(tmp);
                       if (y>0)
                         nchars+=y;
               } else break;
       }
       return nchars;
}
#endif

/*
 * The value of *width is increased if it is not as large as the width of
 * the line.
 */
static const char * lineWidth(int * width, const char * line, int *chrs)
{
    const char *    s = line;

    if ( line == NULL )
       return 0;

   while ( *s != '\0' && *s != '\n' )
       s++;

    if ( *s == '\n' )
       s++;

    *chrs = _newt_wstrlen (line, s - line );
    *width = max(*width, *chrs);

    return s;
}


/*
 * cleanNewlines
 * Handle newlines in text. Hack.
 */
void cleanNewlines (char *text)
{
    char *p, *q;

    for (p = q = text; *p; p++, q++)
        if (*p == '\\' && p[1] == 'n') {
            p++;
            *q = '\n';
        } else
            *q = *p;
    *q = '\0';
}

/*
 * The height of a text string is added to height, and width is increased
 * if it is not big enough to store the text string.
 */
static const char * textSize(int * height, int * width,
                            int maxWidth,
                            const char * text)
{
    int h = 0;
    int w = 0;
    int chrs = 0;


    if ( text == NULL )
       return 0;

   while ( *text != '\0' ) {
       h++;
       text = lineWidth(width, text, &chrs);
       /* Allow for text overflowing. May overestimate a bit */
       h += chrs /  maxWidth;
    }

    h += 2;
   w += 2;

    *height += h;
    *width += w;

    *width = min(*width, maxWidth);
    return text;
}

/*
 * Add space for buttons.
 * NOTE: when this is internationalized, the button width might change.
 */
static void spaceForButtons(int * height, int * width, int count, int full) {
    /* Make space for the buttons */
    if ( full ) {
       *height += 4;
       if ( count == 1 )
           *width = max(*width, 7);
       else
           *width = max(*width, 20);
    }
    else {
       *height += 2;
       if ( count == 1 )
           *width = max(*width, 7);
       else
           *width = max(*width, 19);
    }
}

static int menuSize(int * height, int * width, int * listHeight,
                    enum mode mode, poptContext options) {
    const char ** argv = poptGetArgs(options);
    int         h = 0;
    int         tagWidth = 0;
    int         descriptionWidth = 0;
    int         overhead = 10;

    if ( argv == 0 || *argv == 0 )
       return 0;

    if ( mode == MODE_MENU )
       overhead = 5;

    while ( argv[0] != 0 && argv[1] ) {
       tagWidth = max(tagWidth, _newt_wstrlen(argv[0], -1));
       descriptionWidth = max(descriptionWidth, _newt_wstrlen(argv[1], -1));

       if ( mode == MODE_MENU )
           argv += 2;
       else
          argv += 3;
       h++;
    }

    *width = max(*width, tagWidth + descriptionWidth + overhead);
    *width = min(*width, SLtt_Screen_Cols);

    h = min(h, SLtt_Screen_Rows - *height - 4);
    *height = *height + h + 1;
    *listHeight = h;
    return 0;
}

/*
 * Guess the size of a window, given what will be displayed within it.
 */
static void guessSize(int * height, int * width, int * listHeight,
                     enum mode mode, int * flags, int fullButtons,
                     const char * title, const char * text,
                     poptContext options) {

    int w = 0, h = 0, chrs = 0;

    textSize(&h, &w, SLtt_Screen_Cols -4 , text);     /* Width and height for text */
    lineWidth(&w, title, &chrs);             /* Width for title */

    if ( w > 0 )
       w += 4;

    switch ( mode ) {
       case MODE_CHECKLIST:
       case MODE_RADIOLIST:
       case MODE_MENU:
           spaceForButtons(&h, &w, *flags & FLAG_NOCANCEL ? 1 : 2,
            fullButtons);
           menuSize(&h, &w, listHeight, mode, options);
               break;
       case MODE_YESNO:
       case MODE_MSGBOX:
           spaceForButtons(&h, &w, 1, fullButtons);
           break;
       case MODE_INPUTBOX:
           spaceForButtons(&h, &w, *flags & FLAG_NOCANCEL ? 1 : 2,
            fullButtons);
           h += 1;
           break;
       case MODE_GAUGE:
           h += 2;
           break;
       case MODE_NONE:
	   break;
       default:
               break;
    };

    /*
     * Fixed window-border overhead.
     * NOTE: This will change if we add a way to turn off drop-shadow and/or
     * box borders. That would be desirable for display-sized screens.
     */
    w += 2;
    h += 2;

   if ( h > SLtt_Screen_Rows - 1 ) {
       h = SLtt_Screen_Rows - 1;
       *flags |= FLAG_SCROLL_TEXT;
       w += 2; /* Add width of slider - is this right? */
    }

    *width = min(max(*width, w), SLtt_Screen_Cols);
    *height = max(*height, h);
}

char *
readTextFile(const char * filename)
{
    int fd = open(filename, O_RDONLY, 0);
    struct stat s;
    char * buf;

    if ( fd < 0 || fstat(fd, &s) != 0 ) {
       perror(filename);
       exit(DLG_ERROR);
     }

    if ( (buf = malloc(s.st_size + 1)) == 0 ) {
       fprintf(stderr, _("%s: too large to display.\n"), filename);
       exit(DLG_ERROR);
    }

    if ( read(fd, buf, s.st_size) != s.st_size ) {
        perror(filename);
        exit(DLG_ERROR);
    }
   close(fd);
   buf[s.st_size] = '\0';
   return buf;
}

int main(int argc, const char ** argv) {
    enum mode mode = MODE_NONE;
    poptContext optCon;
    int arg;
    char * text;
    const char * nextArg;
    char * end;
    int height;
    int width;
    int listHeight = 1;
    int fd = -1;
    int needSpace = 0;
    int noCancel = 0;
    int noTags = 0;
    int noItem = 0;
    int clear = 0;
    int scrollText = 0;
    int rc = DLG_CANCEL;
    int flags = 0;
    int defaultNo = 0;
    int separateOutput = 0;
    int fullButtons = 0;
    int outputfd = 2;
    int topLeft = 0;
    FILE *output;
    char * result;
    char ** selections, ** next;
    char * title = NULL;
    char *default_item = NULL;
    char * backtitle = NULL;
    char * yes_button = NULL;
    char * no_button = NULL;
    char * ok_button = NULL;
    char * cancel_button = NULL;
    int help = 0, version = 0;
    struct poptOption optionsTable[] = {
	    { "backtitle", '\0', POPT_ARG_STRING, &backtitle, 0 },
	    { "checklist", '\0', 0, 0, OPT_CHECKLIST },
	    { "clear", '\0', 0, &clear, 0 },
	    { "defaultno", '\0', 0, &defaultNo, 0 },
	    { "inputbox", '\0', 0, 0, OPT_INPUTBOX },
	    { "fb", '\0', 0, 0, OPT_FULLBUTTONS },
	    { "fullbuttons", '\0', 0, 0, OPT_FULLBUTTONS },
	    { "gauge", '\0', 0, 0, OPT_GAUGE },
	    { "infobox", '\0', 0, 0, OPT_INFOBOX },
	    { "menu", '\0', 0, 0, OPT_MENU },
	    { "msgbox", '\0', 0, 0, OPT_MSGBOX },
	    { "nocancel", '\0', 0, &noCancel, 0 },
	    { "noitem", '\0', 0, &noItem, 0 },
            { "default-item", '\0', POPT_ARG_STRING, &default_item, 0},
	    { "notags", '\0', 0, &noTags, 0 },
	    { "radiolist", '\0', 0, 0, OPT_RADIOLIST },
	    { "scrolltext", '\0', 0, &scrollText, 0 },
	    { "separate-output", '\0', 0, &separateOutput, 0 },
	    { "title", '\0', POPT_ARG_STRING, &title, 0 },
	    { "textbox", '\0', 0, 0, OPT_TEXTBOX },
	    { "topleft", '\0', 0, &topLeft, 0 },
	    { "yesno", '\0', 0, 0, OPT_YESNO },
	    { "passwordbox", '\0', 0, 0, OPT_PASSWORDBOX },
	    { "output-fd", '\0',  POPT_ARG_INT, &outputfd, 0 },
	    { "yes-button", '\0', POPT_ARG_STRING, &yes_button, 0},
	    { "no-button", '\0', POPT_ARG_STRING, &no_button, 0},
	    { "ok-button", '\0', POPT_ARG_STRING, &ok_button, 0},
	    { "cancel-button", '\0', POPT_ARG_STRING, &cancel_button, 0},
	    { "help", 'h', 0,  &help, 0, NULL, NULL },
	    { "version", 'v', 0, &version, 0, NULL, NULL },
	    { 0, 0, 0, 0, 0 } 
    };
   
#ifdef ENABLE_NLS
    setlocale (LC_ALL, "");
    bindtextdomain (PACKAGE, LOCALEDIR);
    textdomain (PACKAGE);
#endif

    optCon = poptGetContext("whiptail", argc, argv, optionsTable, 0);

    while ((arg = poptGetNextOpt(optCon)) > 0) {
	switch (arg) {
	  case OPT_INFOBOX:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_INFOBOX;
	    break;

	  case OPT_MENU:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_MENU;
	    break;

	  case OPT_MSGBOX:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_MSGBOX;
	    break;

	  case OPT_TEXTBOX:
    	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_TEXTBOX;
	    break;

	  case OPT_PASSWORDBOX:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_PASSWORDBOX;
	    break;

	  case OPT_RADIOLIST:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_RADIOLIST;
	    break;

	  case OPT_CHECKLIST:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_CHECKLIST;
	    break;

	  case OPT_FULLBUTTONS:
	    fullButtons = 1;
	    useFullButtons(1);
	    break;

	  case OPT_YESNO:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_YESNO;
	    break;

	  case OPT_GAUGE:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_GAUGE;
	    break;

	  case OPT_INPUTBOX:
	    if (mode != MODE_NONE) usage(WAS_ERROR);
	    mode = MODE_INPUTBOX;
	    break;
	}
    }
    
    if (help) {
	    usage(NO_ERROR);
	    exit(0);
    }
    if (version) {
	    print_version();
	    exit(0);
    }
    
    if (arg < -1) {
	fprintf(stderr, "%s: %s\n", 
		poptBadOption(optCon, POPT_BADOPTION_NOALIAS), 
		poptStrerror(arg));
	exit(1);
    }

    output = fdopen (outputfd, "w");
    if (output == NULL ) {
        perror ("Cannot open output-fd\n");
        exit (DLG_ERROR);
    }

    if (mode == MODE_NONE) usage(WAS_ERROR);

    if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
    text = strdup(nextArg);

    if (mode == MODE_TEXTBOX) {
	char *t = text;
	text = readTextFile(t);
	free(t);
    }

    if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
    height = strtoul(nextArg, &end, 10);
    if (*end) usage(WAS_ERROR);

    if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
    width = strtoul(nextArg, &end, 10);
    if (*end) usage(WAS_ERROR);

    switch (mode) {
      case MODE_MENU:
      case MODE_RADIOLIST:
      case MODE_CHECKLIST:
	if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
	listHeight = strtoul(nextArg, &end, 10);
	if (*end) usage(WAS_ERROR);
	break;

      case MODE_GAUGE:
	fd = dup(0);
	if (fd < 0 || close(0) < 0) {
	    perror("dup/close stdin");
	    exit(DLG_ERROR);
	}
	if (open("/dev/tty", O_RDWR) != 0) {
	    perror("open /dev/tty");
	    exit(DLG_ERROR);
	}
	break;
    }

    newtInit();
    newtCls();

    cleanNewlines(text);

    if (height <= 0 || width <= 0 || listHeight <= 0) {
	guessSize(&height, &width, &listHeight, mode, &flags, fullButtons,
		 title, text, optCon);
	if (!topLeft && backtitle && SLtt_Screen_Rows > 10 &&
	    height + 1 == SLtt_Screen_Rows &&
	    _newt_wstrlen(backtitle, -1) > (SLtt_Screen_Cols - width) / 2) {
	    height -= 1;
	    listHeight -= 1;
	}
    }

    width -= 2;
    height -= 2;

    newtOpenWindow(topLeft ? 1 : (SLtt_Screen_Cols - width) / 2,
		   topLeft ? 1 : (SLtt_Screen_Rows - height) / 2, width, height, title);
    if (backtitle)
	newtDrawRootText(0, 0, backtitle);

    if (ok_button)
	setButtonText(ok_button, BUTTON_OK);
    if (cancel_button)
	setButtonText(cancel_button, BUTTON_CANCEL);
    if (yes_button)
	setButtonText(yes_button, BUTTON_YES);
    if (no_button)
	setButtonText(no_button, BUTTON_NO);

    if (noCancel) flags |= FLAG_NOCANCEL;
    if (noItem) flags |= FLAG_NOITEM;
    if (noTags) flags |= FLAG_NOTAGS;
    if (scrollText) flags |= FLAG_SCROLL_TEXT;
    if (defaultNo) flags |= FLAG_DEFAULT_NO;

    switch (mode) {
      case MODE_MSGBOX:
      case MODE_TEXTBOX:
	rc = messageBox(text, height, width, MSGBOX_MSG, flags);
	break;

      case MODE_INFOBOX:
	rc = messageBox(text, height, width, MSGBOX_INFO, flags);
	break;

      case MODE_YESNO:
	rc = messageBox(text, height, width, MSGBOX_YESNO, flags);
	break;

      case MODE_INPUTBOX:
	rc = inputBox(text, height, width, optCon, flags, &result);
	if (rc == DLG_OKAY) {
	    fprintf(output, "%s", result);
	    free(result);
	}
	break;

      case MODE_PASSWORDBOX:
	rc = inputBox(text, height, width, optCon, flags | FLAG_PASSWORD,
	      &result);
	if (rc == DLG_OKAY) {
	    fprintf (output, "%s", result);
	    free(result);
	}
	break;

      case MODE_MENU:
	rc = listBox(text, height, width, listHeight, optCon, flags, default_item, &result);
	if (rc == DLG_OKAY) {
	    fprintf(output, "%s", result);
	    free(result);
	}
	break;

      case MODE_RADIOLIST:
	rc = checkList(text, height, width, listHeight, optCon, 1, flags, &selections);
	if (rc == DLG_OKAY && selections[0]) {
	    fprintf(output, "%s", selections[0]);
	    free(selections[0]);
	    free(selections);
	}
	break;

      case MODE_CHECKLIST:
	rc = checkList(text, height, width, listHeight, optCon, 0, flags, &selections);

	if (!rc) {
	    for (next = selections; *next; next++) {
		if (!separateOutput) {
		    if (needSpace) putc(' ', output);
		    fprintf(output, "\"%s\"", *next);
		    needSpace = 1;
		} else {
		    fprintf(output, "%s\n", *next);
		}
		free(*next);
	    }

	    free(selections);
	}
	break;

      case MODE_GAUGE:
	rc = gauge(text, height, width, optCon, fd, flags);
	break;

      default:
	usage(WAS_ERROR);
    }

    if (rc == DLG_ERROR) usage(WAS_ERROR);

    if (clear)
	newtPopWindow();
    newtFinished();

    free(text);
    poptFreeContext(optCon);

    return ( rc == DLG_ESCAPE ) ? -1 : rc;
}
Commit	Line	Data
feef2cb5	1	#include "config.h"
9be6d60e	2	#include <fcntl.h>
6c049389	3	#include <popt.h>
9be6d60e	4	#include <stdio.h>
	5	#include <string.h>
	6	#include <stdlib.h>
feef2cb5	7	#include <signal.h>
9be6d60e	8	#include <unistd.h>
feef2cb5	9	#include <wchar.h>
feef2cb5	10	#include <slang.h>
83fe9fde	11	#include <sys/stat.h>
9be6d60e	12
feef2cb5	13	#include "nls.h"
649a0152	14	#include "dialogboxes.h"
9be6d60e	15	#include "newt.h"
feef2cb5	16	#include "newt_pr.h"
	17
	18	enum { NO_ERROR = 0, WAS_ERROR = 1 };
9be6d60e	19
139f06bc	20	enum mode { MODE_NONE, MODE_INFOBOX, MODE_MSGBOX, MODE_YESNO, MODE_CHECKLIST,
feef2cb5	21	MODE_INPUTBOX, MODE_RADIOLIST, MODE_MENU, MODE_GAUGE ,
feef2cb5	22	MODE_TEXTBOX, MODE_PASSWORDBOX};
9be6d60e	23
6f481af2	24	#define OPT_MSGBOX 1000
	25	#define OPT_CHECKLIST 1001
	26	#define OPT_YESNO 1002
	27	#define OPT_INPUTBOX 1003
	28	#define OPT_FULLBUTTONS 1004
	29	#define OPT_MENU 1005
	30	#define OPT_RADIOLIST 1006
	31	#define OPT_GAUGE 1007
	32	#define OPT_INFOBOX 1008
feef2cb5	33	#define OPT_TEXTBOX 1009
	34	#define OPT_PASSWORDBOX 1010
	35
	36	static void usage(int err) {
	37	newtFinished();
	38	fprintf (err ? stderr : stdout,
	39	_("Box options: \n"
	40	"\t--msgbox <text> <height> <width>\n"
	41	"\t--yesno <text> <height> <width>\n"
	42	"\t--infobox <text> <height> <width>\n"
	43	"\t--inputbox <text> <height> <width> [init] \n"
	44	"\t--passwordbox <text> <height> <width> [init] \n"
	45	"\t--textbox <file> <height> <width>\n"
	46	"\t--menu <text> <height> <width> <listheight> [tag item] ...\n"
	47	"\t--checklist <text> <height> <width> <listheight> [tag item status]...\n"
30cfd38a	48	"\t--radiolist <text> <height> <width> <listheight> [tag item status]...\n"
feef2cb5	49	"\t--gauge <text> <height> <width> <percent>\n"
	50	"Options: (depend on box-option)\n"
	51	"\t--clear clear screen on exit\n"
45bffa7f	52	"\t--defaultno default no button\n"
feef2cb5	53	"\t--default-item <string> set default string\n"
6c7007a6	54	"\t--fb, --fullbuttons use full buttons\n"
feef2cb5	55	"\t--nocancel no cancel button\n"
60d3c50b	56	"\t--yes-button <text> set text of yes button\n"
	57	"\t--no-button <text> set text of no button\n"
	58	"\t--ok-button <text> set text of ok button\n"
	59	"\t--cancel-button <text> set text of cancel button\n"
6c7007a6 ML	60	"\t--noitem don't display items\n"
6c7007a6 ML	61	"\t--notags don't display tags\n"
f0e9344a	62	"\t--separate-output output one line at a time\n"
feef2cb5	63	"\t--output-fd <fd> output to fd, not stdout\n"
	64	"\t--title <title> display title\n"
	65	"\t--backtitle <backtitle> display backtitle\n"
c3a3b1e8	66	"\t--scrolltext force vertical scrollbars\n"
6c7007a6 ML	67	"\t--topleft put window in top-left corner\n"
	68	"\t-h, --help print this message\n"
	69	"\t-v, --version print version information\n\n"));
feef2cb5	70	exit(err ? DLG_ERROR : 0 );
	71	}
	72
	73	static void print_version(void) {
	74	fprintf (stdout, _("whiptail (newt): %s\n"), VERSION);
	75	}
	76
feef2cb5	77	#if 0
	78	/* FIXME Copied from newt.c
	79	* Place somewhere better -- dialogboxes? -- amck
	80	*/
	81	int wstrlen(const char *str, int len) {
	82	mbstate_t ps;
	83	wchar_t tmp;
	84	int nchars = 0;
	85
	86	if (!str) return 0;
	87	if (!len) return 0;
	88	if (len < 0) len = strlen(str);
	89	memset(&ps,0,sizeof(mbstate_t));
	90	while (len > 0) {
	91	int x,y;
	92
	93	x = mbrtowc(&tmp,str,len,&ps);
	94	if (x >0) {
	95	str += x;
	96	len -= x;
	97	y = wcwidth(tmp);
	98	if (y>0)
	99	nchars+=y;
	100	} else break;
	101	}
	102	return nchars;
	103	}
	104	#endif
	105
	106	/*
	107	* The value of *width is increased if it is not as large as the width of
	108	* the line.
	109	*/
	110	static const char * lineWidth(int * width, const char * line, int *chrs)
	111	{
	112	const char * s = line;
	113
	114	if ( line == NULL )
	115	return 0;
	116
	117	while ( s != '\0' && s != '\n' )
	118	s++;
	119
	120	if ( *s == '\n' )
	121	s++;
	122
	123	*chrs = _newt_wstrlen (line, s - line );
	124	width = max(width, *chrs);
9be6d60e	125
feef2cb5	126	return s;
	127	}
	128
	129
	130	/*
	131	* cleanNewlines
	132	* Handle newlines in text. Hack.
	133	*/
	134	void cleanNewlines (char *text)
	135	{
ba84e71b ML	136	char p, q;
	137
	138	for (p = q = text; *p; p++, q++)
	139	if (*p == '\\' && p[1] == 'n') {
	140	p++;
	141	*q = '\n';
	142	} else
	143	q = p;
	144	*q = '\0';
feef2cb5	145	}
	146
	147	/*
	148	* The height of a text string is added to height, and width is increased
	149	* if it is not big enough to store the text string.
	150	*/
	151	static const char * textSize(int * height, int * width,
	152	int maxWidth,
	153	const char * text)
	154	{
	155	int h = 0;
	156	int w = 0;
	157	int chrs = 0;
	158
	159
	160	if ( text == NULL )
	161	return 0;
	162
	163	while ( *text != '\0' ) {
	164	h++;
	165	text = lineWidth(width, text, &chrs);
	166	/* Allow for text overflowing. May overestimate a bit */
	167	h += chrs / maxWidth;
	168	}
	169
	170	h += 2;
	171	w += 2;
	172
	173	*height += h;
	174	*width += w;
	175
	176	width = min(width, maxWidth);
	177	return text;
	178	}
	179
	180	/*
	181	* Add space for buttons.
	182	* NOTE: when this is internationalized, the button width might change.
	183	*/
	184	static void spaceForButtons(int * height, int * width, int count, int full) {
	185	/* Make space for the buttons */
	186	if ( full ) {
	187	*height += 4;
	188	if ( count == 1 )
	189	width = max(width, 7);
	190	else
	191	width = max(width, 20);
	192	}
	193	else {
	194	*height += 2;
	195	if ( count == 1 )
	196	width = max(width, 7);
	197	else
	198	width = max(width, 19);
	199	}
	200	}
	201
9c4eb622 ML	202	static int menuSize(int * height, int * width, int * listHeight,
9c4eb622 ML	203	enum mode mode, poptContext options) {
c00a8d1b	204	const char ** argv = poptGetArgs(options);
feef2cb5	205	int h = 0;
	206	int tagWidth = 0;
	207	int descriptionWidth = 0;
	208	int overhead = 10;
feef2cb5	209
	210	if ( argv == 0 \|\| *argv == 0 )
	211	return 0;
	212
feef2cb5	213	if ( mode == MODE_MENU )
	214	overhead = 5;
	215
	216	while ( argv[0] != 0 && argv[1] ) {
ce98a323 ML	217	tagWidth = max(tagWidth, _newt_wstrlen(argv[0], -1));
ce98a323 ML	218	descriptionWidth = max(descriptionWidth, _newt_wstrlen(argv[1], -1));
feef2cb5	219
	220	if ( mode == MODE_MENU )
	221	argv += 2;
	222	else
	223	argv += 3;
	224	h++;
	225	}
	226
	227	width = max(width, tagWidth + descriptionWidth + overhead);
	228	width = min(width, SLtt_Screen_Cols);
	229
	230	h = min(h, SLtt_Screen_Rows - *height - 4);
	231	height = height + h + 1;
9c4eb622	232	*listHeight = h;
feef2cb5	233	return 0;
	234	}
	235
	236	/*
	237	* Guess the size of a window, given what will be displayed within it.
	238	*/
9c4eb622 ML	239	static void guessSize(int * height, int * width, int * listHeight,
9c4eb622 ML	240	enum mode mode, int * flags, int fullButtons,
feef2cb5	241	const char * title, const char * text,
	242	poptContext options) {
	243
	244	int w = 0, h = 0, chrs = 0;
	245
	246	textSize(&h, &w, SLtt_Screen_Cols -4 , text); /* Width and height for text */
	247	lineWidth(&w, title, &chrs); /* Width for title */
	248
	249	if ( w > 0 )
	250	w += 4;
	251
	252	switch ( mode ) {
	253	case MODE_CHECKLIST:
	254	case MODE_RADIOLIST:
	255	case MODE_MENU:
	256	spaceForButtons(&h, &w, *flags & FLAG_NOCANCEL ? 1 : 2,
	257	fullButtons);
9c4eb622	258	menuSize(&h, &w, listHeight, mode, options);
feef2cb5	259	break;
	260	case MODE_YESNO:
	261	case MODE_MSGBOX:
	262	spaceForButtons(&h, &w, 1, fullButtons);
	263	break;
	264	case MODE_INPUTBOX:
	265	spaceForButtons(&h, &w, *flags & FLAG_NOCANCEL ? 1 : 2,
	266	fullButtons);
	267	h += 1;
	268	break;
	269	case MODE_GAUGE:
	270	h += 2;
	271	break;
	272	case MODE_NONE:
	273	break;
	274	default:
	275	break;
	276	};
	277
	278	/*
	279	* Fixed window-border overhead.
	280	* NOTE: This will change if we add a way to turn off drop-shadow and/or
	281	* box borders. That would be desirable for display-sized screens.
	282	*/
	283	w += 2;
	284	h += 2;
	285
	286	if ( h > SLtt_Screen_Rows - 1 ) {
	287	h = SLtt_Screen_Rows - 1;
	288	*flags \|= FLAG_SCROLL_TEXT;
	289	w += 2; /* Add width of slider - is this right? */
	290	}
	291
	292	width = min(max(width, w), SLtt_Screen_Cols);
	293	height = max(height, h);
9be6d60e	294	}
9be6d60e	295
585f5503	296	char *
	297	readTextFile(const char * filename)
	298	{
	299	int fd = open(filename, O_RDONLY, 0);
	300	struct stat s;
	301	char * buf;
	302
	303	if ( fd < 0 \|\| fstat(fd, &s) != 0 ) {
	304	perror(filename);
	305	exit(DLG_ERROR);
	306	}
	307
3341bdc5	308	if ( (buf = malloc(s.st_size + 1)) == 0 ) {
feef2cb5	309	fprintf(stderr, _("%s: too large to display.\n"), filename);
3341bdc5 ML	310	exit(DLG_ERROR);
3341bdc5 ML	311	}
585f5503	312
	313	if ( read(fd, buf, s.st_size) != s.st_size ) {
	314	perror(filename);
	315	exit(DLG_ERROR);
	316	}
	317	close(fd);
659af8f0	318	buf[s.st_size] = '\0';
585f5503	319	return buf;
	320	}
	321
eb0a0545	322	int main(int argc, const char ** argv) {
9be6d60e	323	enum mode mode = MODE_NONE;
	324	poptContext optCon;
	325	int arg;
feef2cb5	326	char * text;
eb0a0545	327	const char * nextArg;
9be6d60e	328	char * end;
	329	int height;
	330	int width;
bb5f279b	331	int listHeight = 1;
649a0152	332	int fd = -1;
649a0152	333	int needSpace = 0;
9be6d60e	334	int noCancel = 0;
57cb49e7	335	int noTags = 0;
9be6d60e	336	int noItem = 0;
	337	int clear = 0;
	338	int scrollText = 0;
feef2cb5	339	int rc = DLG_CANCEL;
9be6d60e	340	int flags = 0;
ff3d94b9	341	int defaultNo = 0;
9be6d60e	342	int separateOutput = 0;
feef2cb5	343	int fullButtons = 0;
9623bfae	344	int outputfd = 2;
45bffa7f	345	int topLeft = 0;
638f672c	346	FILE *output;
f40f18ae ML	347	char * result;
f40f18ae ML	348	char selections, next;
9be6d60e	349	char * title = NULL;
feef2cb5	350	char *default_item = NULL;
9be6d60e	351	char * backtitle = NULL;
60d3c50b	352	char * yes_button = NULL;
	353	char * no_button = NULL;
	354	char * ok_button = NULL;
	355	char * cancel_button = NULL;
feef2cb5	356	int help = 0, version = 0;
9be6d60e	357	struct poptOption optionsTable[] = {
6f481af2	358	{ "backtitle", '\0', POPT_ARG_STRING, &backtitle, 0 },
	359	{ "checklist", '\0', 0, 0, OPT_CHECKLIST },
	360	{ "clear", '\0', 0, &clear, 0 },
	361	{ "defaultno", '\0', 0, &defaultNo, 0 },
	362	{ "inputbox", '\0', 0, 0, OPT_INPUTBOX },
	363	{ "fb", '\0', 0, 0, OPT_FULLBUTTONS },
	364	{ "fullbuttons", '\0', 0, 0, OPT_FULLBUTTONS },
	365	{ "gauge", '\0', 0, 0, OPT_GAUGE },
	366	{ "infobox", '\0', 0, 0, OPT_INFOBOX },
	367	{ "menu", '\0', 0, 0, OPT_MENU },
	368	{ "msgbox", '\0', 0, 0, OPT_MSGBOX },
	369	{ "nocancel", '\0', 0, &noCancel, 0 },
	370	{ "noitem", '\0', 0, &noItem, 0 },
feef2cb5	371	{ "default-item", '\0', POPT_ARG_STRING, &default_item, 0},
6f481af2	372	{ "notags", '\0', 0, &noTags, 0 },
	373	{ "radiolist", '\0', 0, 0, OPT_RADIOLIST },
	374	{ "scrolltext", '\0', 0, &scrollText, 0 },
	375	{ "separate-output", '\0', 0, &separateOutput, 0 },
	376	{ "title", '\0', POPT_ARG_STRING, &title, 0 },
6f481af2	377	{ "textbox", '\0', 0, 0, OPT_TEXTBOX },
45bffa7f	378	{ "topleft", '\0', 0, &topLeft, 0 },
feef2cb5	379	{ "yesno", '\0', 0, 0, OPT_YESNO },
	380	{ "passwordbox", '\0', 0, 0, OPT_PASSWORDBOX },
	381	{ "output-fd", '\0', POPT_ARG_INT, &outputfd, 0 },
60d3c50b	382	{ "yes-button", '\0', POPT_ARG_STRING, &yes_button, 0},
	383	{ "no-button", '\0', POPT_ARG_STRING, &no_button, 0},
	384	{ "ok-button", '\0', POPT_ARG_STRING, &ok_button, 0},
	385	{ "cancel-button", '\0', POPT_ARG_STRING, &cancel_button, 0},
feef2cb5	386	{ "help", 'h', 0, &help, 0, NULL, NULL },
feef2cb5	387	{ "version", 'v', 0, &version, 0, NULL, NULL },
6f481af2	388	{ 0, 0, 0, 0, 0 }
9be6d60e	389	};
feef2cb5	390
970ce9d5	391	#ifdef ENABLE_NLS
feef2cb5	392	setlocale (LC_ALL, "");
	393	bindtextdomain (PACKAGE, LOCALEDIR);
	394	textdomain (PACKAGE);
970ce9d5	395	#endif
feef2cb5	396
649a0152	397	optCon = poptGetContext("whiptail", argc, argv, optionsTable, 0);
9be6d60e	398
9be6d60e	399	while ((arg = poptGetNextOpt(optCon)) > 0) {
6f481af2	400	switch (arg) {
6f481af2	401	case OPT_INFOBOX:
feef2cb5	402	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	403	mode = MODE_INFOBOX;
	404	break;
	405
	406	case OPT_MENU:
feef2cb5	407	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	408	mode = MODE_MENU;
	409	break;
	410
	411	case OPT_MSGBOX:
feef2cb5	412	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	413	mode = MODE_MSGBOX;
6f481af2	414	break;
feef2cb5	415
	416	case OPT_TEXTBOX:
	417	if (mode != MODE_NONE) usage(WAS_ERROR);
	418	mode = MODE_TEXTBOX;
	419	break;
	420
	421	case OPT_PASSWORDBOX:
	422	if (mode != MODE_NONE) usage(WAS_ERROR);
	423	mode = MODE_PASSWORDBOX;
	424	break;
	425
6f481af2	426	case OPT_RADIOLIST:
feef2cb5	427	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	428	mode = MODE_RADIOLIST;
	429	break;
	430
	431	case OPT_CHECKLIST:
feef2cb5	432	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	433	mode = MODE_CHECKLIST;
	434	break;
	435
	436	case OPT_FULLBUTTONS:
feef2cb5	437	fullButtons = 1;
6f481af2	438	useFullButtons(1);
	439	break;
	440
	441	case OPT_YESNO:
feef2cb5	442	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	443	mode = MODE_YESNO;
	444	break;
	445
	446	case OPT_GAUGE:
feef2cb5	447	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	448	mode = MODE_GAUGE;
	449	break;
	450
	451	case OPT_INPUTBOX:
feef2cb5	452	if (mode != MODE_NONE) usage(WAS_ERROR);
6f481af2	453	mode = MODE_INPUTBOX;
	454	break;
	455	}
9be6d60e	456	}
9be6d60e	457
feef2cb5	458	if (help) {
	459	usage(NO_ERROR);
	460	exit(0);
	461	}
	462	if (version) {
	463	print_version();
	464	exit(0);
	465	}
	466
9be6d60e	467	if (arg < -1) {
6f481af2	468	fprintf(stderr, "%s: %s\n",
	469	poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
	470	poptStrerror(arg));
	471	exit(1);
9be6d60e	472	}
9be6d60e	473
9623bfae	474	output = fdopen (outputfd, "w");
	475	if (output == NULL ) {
	476	perror ("Cannot open output-fd\n");
	477	exit (DLG_ERROR);
	478	}
	479
feef2cb5	480	if (mode == MODE_NONE) usage(WAS_ERROR);
9be6d60e	481
c00a8d1b	482	if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
c00a8d1b	483	text = strdup(nextArg);
9be6d60e	484
3341bdc5 ML	485	if (mode == MODE_TEXTBOX) {
	486	char *t = text;
	487	text = readTextFile(t);
	488	free(t);
	489	}
585f5503	490
feef2cb5	491	if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
9be6d60e	492	height = strtoul(nextArg, &end, 10);
feef2cb5	493	if (*end) usage(WAS_ERROR);
9be6d60e	494
feef2cb5	495	if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
9be6d60e	496	width = strtoul(nextArg, &end, 10);
feef2cb5	497	if (*end) usage(WAS_ERROR);
9be6d60e	498
9c4eb622 ML	499	switch (mode) {
	500	case MODE_MENU:
	501	case MODE_RADIOLIST:
	502	case MODE_CHECKLIST:
	503	if (!(nextArg = poptGetArg(optCon))) usage(WAS_ERROR);
	504	listHeight = strtoul(nextArg, &end, 10);
	505	if (*end) usage(WAS_ERROR);
	506	break;
	507
	508	case MODE_GAUGE:
6f481af2	509	fd = dup(0);
3341bdc5 ML	510	if (fd < 0 \|\| close(0) < 0) {
	511	perror("dup/close stdin");
	512	exit(DLG_ERROR);
	513	}
	514	if (open("/dev/tty", O_RDWR) != 0) {
	515	perror("open /dev/tty");
	516	exit(DLG_ERROR);
	517	}
9c4eb622	518	break;
9be6d60e	519	}
	520
	521	newtInit();
	522	newtCls();
feef2cb5	523
	524	cleanNewlines(text);
	525
73bb4086	526	if (height <= 0 \|\| width <= 0 \|\| listHeight <= 0) {
9c4eb622 ML	527	guessSize(&height, &width, &listHeight, mode, &flags, fullButtons,
9c4eb622 ML	528	title, text, optCon);
73bb4086 ML	529	if (!topLeft && backtitle && SLtt_Screen_Rows > 10 &&
	530	height + 1 == SLtt_Screen_Rows &&
	531	_newt_wstrlen(backtitle, -1) > (SLtt_Screen_Cols - width) / 2) {
	532	height -= 1;
	533	listHeight -= 1;
	534	}
	535	}
feef2cb5	536
9be6d60e	537	width -= 2;
9be6d60e	538	height -= 2;
9be6d60e	539
45bffa7f	540	newtOpenWindow(topLeft ? 1 : (SLtt_Screen_Cols - width) / 2,
45bffa7f	541	topLeft ? 1 : (SLtt_Screen_Rows - height) / 2, width, height, title);
9be6d60e	542	if (backtitle)
6f481af2	543	newtDrawRootText(0, 0, backtitle);
9be6d60e	544
60d3c50b	545	if (ok_button)
	546	setButtonText(ok_button, BUTTON_OK);
	547	if (cancel_button)
	548	setButtonText(cancel_button, BUTTON_CANCEL);
	549	if (yes_button)
	550	setButtonText(yes_button, BUTTON_YES);
	551	if (no_button)
	552	setButtonText(no_button, BUTTON_NO);
	553
9be6d60e	554	if (noCancel) flags \|= FLAG_NOCANCEL;
9be6d60e	555	if (noItem) flags \|= FLAG_NOITEM;
57cb49e7	556	if (noTags) flags \|= FLAG_NOTAGS;
9be6d60e	557	if (scrollText) flags \|= FLAG_SCROLL_TEXT;
ff3d94b9	558	if (defaultNo) flags \|= FLAG_DEFAULT_NO;
9be6d60e	559
	560	switch (mode) {
	561	case MODE_MSGBOX:
585f5503	562	case MODE_TEXTBOX:
6f481af2	563	rc = messageBox(text, height, width, MSGBOX_MSG, flags);
6f481af2	564	break;
9be6d60e	565
139f06bc	566	case MODE_INFOBOX:
6f481af2	567	rc = messageBox(text, height, width, MSGBOX_INFO, flags);
6f481af2	568	break;
139f06bc	569
9be6d60e	570	case MODE_YESNO:
6f481af2	571	rc = messageBox(text, height, width, MSGBOX_YESNO, flags);
6f481af2	572	break;
9be6d60e	573
9be6d60e	574	case MODE_INPUTBOX:
6f481af2	575	rc = inputBox(text, height, width, optCon, flags, &result);
f40f18ae ML	576	if (rc == DLG_OKAY) {
	577	fprintf(output, "%s", result);
	578	free(result);
	579	}
feef2cb5	580	break;
	581
	582	case MODE_PASSWORDBOX:
	583	rc = inputBox(text, height, width, optCon, flags \| FLAG_PASSWORD,
	584	&result);
f40f18ae ML	585	if (rc == DLG_OKAY) {
	586	fprintf (output, "%s", result);
	587	free(result);
	588	}
6f481af2	589	break;
9be6d60e	590
9be6d60e	591	case MODE_MENU:
9c4eb622	592	rc = listBox(text, height, width, listHeight, optCon, flags, default_item, &result);
f40f18ae ML	593	if (rc == DLG_OKAY) {
	594	fprintf(output, "%s", result);
	595	free(result);
	596	}
6f481af2	597	break;
9be6d60e	598
9be6d60e	599	case MODE_RADIOLIST:
9c4eb622	600	rc = checkList(text, height, width, listHeight, optCon, 1, flags, &selections);
f40f18ae ML	601	if (rc == DLG_OKAY && selections[0]) {
	602	fprintf(output, "%s", selections[0]);
	603	free(selections[0]);
6f481af2	604	free(selections);
	605	}
	606	break;
9be6d60e	607
9be6d60e	608	case MODE_CHECKLIST:
9c4eb622	609	rc = checkList(text, height, width, listHeight, optCon, 0, flags, &selections);
6f481af2	610
	611	if (!rc) {
	612	for (next = selections; *next; next++) {
	613	if (!separateOutput) {
	614	if (needSpace) putc(' ', output);
	615	fprintf(output, "\"%s\"", *next);
	616	needSpace = 1;
	617	} else {
	618	fprintf(output, "%s\n", *next);
	619	}
f40f18ae	620	free(*next);
6f481af2	621	}
	622
	623	free(selections);
	624	}
	625	break;
9be6d60e	626
9be6d60e	627	case MODE_GAUGE:
6f481af2	628	rc = gauge(text, height, width, optCon, fd, flags);
6f481af2	629	break;
9be6d60e	630
9be6d60e	631	default:
feef2cb5	632	usage(WAS_ERROR);
9be6d60e	633	}
9be6d60e	634
feef2cb5	635	if (rc == DLG_ERROR) usage(WAS_ERROR);
649a0152	636
9be6d60e	637	if (clear)
6f481af2	638	newtPopWindow();
9be6d60e	639	newtFinished();
9be6d60e	640
3341bdc5 ML	641	free(text);
	642	poptFreeContext(optCon);
	643
feef2cb5	644	return ( rc == DLG_ESCAPE ) ? -1 : rc;
9be6d60e	645	}