/*
* Return current line of text.
* 'page' should point to start of current line before calling, and will be
* updated to point to start of next line.
*/
static char *
get_line(MY_OBJ * obj)
{
int i = 0;
long fpos;
obj->end_reached = FALSE;
while (obj->buf[obj->in_buf] != '\n') {
if (obj->buf[obj->in_buf] == '\0') { /* Either end of file or end of buffer reached */
fpos = ftell_obj(obj);
if (fpos < obj->file_size) { /* Not end of file yet */
/* We've reached end of buffer, but not end of file yet, so
* read next part of file into buffer
*/
read_high(obj, BUF_SIZE);
obj->in_buf = 0;
} else {
if (!obj->end_reached)
obj->end_reached = TRUE;
break;
}
} else if (i < MAX_LEN)
obj->line[i++] = obj->buf[obj->in_buf++];
else {
if (i == MAX_LEN) /* Truncate lines longer than MAX_LEN characters */
obj->line[i++] = '\0';
obj->in_buf++;
}
}
if (i <= MAX_LEN)
obj->line[i] = '\0';
if (!obj->end_reached)
obj->in_buf++; /* move past '\n' */
return obj->line;
}
/*
* Display text from a file in a dialog box.
*/
int
dialog_textbox(const char *title, const char *file, int height, int width)
{
/* *INDENT-OFF* */
static DLG_KEYS_BINDING binding[] = {
HELPKEY_BINDINGS,
ENTERKEY_BINDINGS,
DLG_KEYS_DATA( DLGK_GRID_DOWN, 'J' ),
DLG_KEYS_DATA( DLGK_GRID_DOWN, 'j' ),
DLG_KEYS_DATA( DLGK_GRID_DOWN, KEY_DOWN ),
DLG_KEYS_DATA( DLGK_GRID_LEFT, 'H' ),
DLG_KEYS_DATA( DLGK_GRID_LEFT, 'h' ),
DLG_KEYS_DATA( DLGK_GRID_LEFT, KEY_LEFT ),
DLG_KEYS_DATA( DLGK_GRID_RIGHT, 'L' ),
DLG_KEYS_DATA( DLGK_GRID_RIGHT, 'l' ),
DLG_KEYS_DATA( DLGK_GRID_RIGHT, KEY_RIGHT ),
DLG_KEYS_DATA( DLGK_GRID_UP, 'K' ),
DLG_KEYS_DATA( DLGK_GRID_UP, 'k' ),
DLG_KEYS_DATA( DLGK_GRID_UP, KEY_UP ),
DLG_KEYS_DATA( DLGK_PAGE_FIRST, 'g' ),
DLG_KEYS_DATA( DLGK_PAGE_FIRST, KEY_HOME ),
DLG_KEYS_DATA( DLGK_PAGE_LAST, 'G' ),
DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_END ),
DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_LL ),
DLG_KEYS_DATA( DLGK_PAGE_NEXT, ' ' ),
DLG_KEYS_DATA( DLGK_PAGE_NEXT, KEY_NPAGE ),
DLG_KEYS_DATA( DLGK_PAGE_PREV, 'B' ),
DLG_KEYS_DATA( DLGK_PAGE_PREV, 'b' ),
DLG_KEYS_DATA( DLGK_PAGE_PREV, KEY_PPAGE ),
DLG_KEYS_DATA( DLGK_BEGIN, '0' ),
DLG_KEYS_DATA( DLGK_BEGIN, KEY_BEG ),
DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ),
DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ),
END_KEYS_BINDING
};
/* *INDENT-ON* */
#ifdef KEY_RESIZE
int old_height = height;
int old_width = width;
#endif
long fpos;
int x, y, cur_x, cur_y;
int key = 0, fkey;
int next = 0;
int i, code, passed_end;
char search_term[MAX_LEN + 1];
MY_OBJ obj;
WINDOW *dialog;
bool moved;
int result = DLG_EXIT_UNKNOWN;
int button = dlg_default_button();
int min_width = 12;
search_term[0] = '\0'; /* no search term entered yet */
memset(&obj, 0, sizeof(obj));
obj.begin_reached = TRUE;
obj.buffer_first = TRUE;
obj.end_reached = FALSE;
obj.buttons = dlg_exit_label();
/* Open input file for reading */
if ((obj.fd = open(file, O_RDONLY)) == -1)
dlg_exiterr("Can't open input file %s", file);
/* Get file size. Actually, 'file_size' is the real file size - 1,
since it's only the last byte offset from the beginning */
lseek_end(&obj, 0L);
/* Restore file pointer to beginning of file after getting file size */
lseek_set(&obj, 0L);
read_high(&obj, BUF_SIZE);
dlg_button_layout(obj.buttons, &min_width);
#ifdef KEY_RESIZE
retry:
#endif
moved = TRUE;
dlg_auto_sizefile(title, file, &height, &width, 2, min_width);
dlg_print_size(height, width);
dlg_ctl_size(height, width);
x = dlg_box_x_ordinate(width);
y = dlg_box_y_ordinate(height);
dialog = dlg_new_window(height, width, y, x);
dlg_register_window(dialog, "textbox", binding);
dlg_register_buttons(dialog, "textbox", obj.buttons);
dlg_mouse_setbase(x, y);
/* Create window for text region, used for scrolling text */
obj.text = dlg_sub_window(dialog, PAGE_LENGTH, PAGE_WIDTH, y + 1, x + 1);
/* register the new window, along with its borders */
dlg_mouse_mkbigregion(0, 0, PAGE_LENGTH + 2, width, KEY_MAX, 1, 1, 1 /* lines */ );
dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr);
dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr);
dlg_draw_title(dialog, title);
dlg_draw_buttons(dialog, PAGE_LENGTH + 2, 0, obj.buttons, button, FALSE, width);
(void) wnoutrefresh(dialog);
getyx(dialog, cur_y, cur_x); /* Save cursor position */
dlg_attr_clear(obj.text, PAGE_LENGTH, PAGE_WIDTH, dialog_attr);
while (result == DLG_EXIT_UNKNOWN) {
/*
* Update the screen according to whether we shifted up/down by a line
* or not.
*/
if (moved) {
if (next < 0) {
(void) scrollok(obj.text, TRUE);
(void) scroll(obj.text); /* Scroll text region up one line */
(void) scrollok(obj.text, FALSE);
print_line(&obj, PAGE_LENGTH - 1, PAGE_WIDTH);
(void) wnoutrefresh(obj.text);
} else if (next > 0) {
/*
* We don't call print_page() here but use scrolling to ensure
* faster screen update. However, 'end_reached' and
* 'page_length' should still be updated, and 'in_buf' should
* point to start of next page. This is done by calling
* get_line() in the following 'for' loop.
*/
(void) scrollok(obj.text, TRUE);
(void) wscrl(obj.text, -1); /* Scroll text region down one line */
(void) scrollok(obj.text, FALSE);
obj.page_length = 0;
passed_end = 0;
for (i = 0; i < PAGE_LENGTH; i++) {
if (!i) {
print_line(&obj, 0, PAGE_WIDTH); /* print first line of page */
(void) wnoutrefresh(obj.text);
} else
(void) get_line(&obj); /* Called to update 'end_reached' and 'in_buf' */
if (!passed_end)
obj.page_length++;
if (obj.end_reached && !passed_end)
passed_end = 1;
}
} else {
print_page(&obj, PAGE_LENGTH, PAGE_WIDTH);
}
print_position(&obj, dialog, height, width);
(void) wmove(dialog, cur_y, cur_x); /* Restore cursor position */
wrefresh(dialog);
}
moved = FALSE; /* assume we'll not move */
next = 0; /* ...but not scroll by a line */
key = dlg_mouse_wgetch(dialog, &fkey);
if (dlg_result_key(key, fkey, &result))
break;
if (!fkey && (code = dlg_char_to_button(key, obj.buttons)) >= 0) {
result = dlg_ok_buttoncode(code);
break;
}
if (fkey) {
switch (key) {
default:
if (is_DLGK_MOUSE(key)) {
result = dlg_exit_buttoncode(key - M_EVENT);
if (result < 0)
result = DLG_EXIT_OK;
} else {
beep();
}
break;
case DLGK_FIELD_NEXT:
button = dlg_next_button(obj.buttons, button);
if (button < 0)
button = 0;
dlg_draw_buttons(dialog,
height - 2, 0,
obj.buttons, button,
FALSE, width);
break;
case DLGK_FIELD_PREV:
button = dlg_prev_button(obj.buttons, button);
if (button < 0)
button = 0;
dlg_draw_buttons(dialog,
height - 2, 0,
obj.buttons, button,
FALSE, width);
break;
case DLGK_ENTER:
if (dialog_vars.nook)
result = DLG_EXIT_OK;
else
result = dlg_exit_buttoncode(button);
break;
case DLGK_PAGE_FIRST:
if (!obj.begin_reached) {
obj.begin_reached = 1;
/* First page not in buffer? */
fpos = ftell_obj(&obj);
if (fpos > obj.fd_bytes_read) {
/* Yes, we have to read it in */
lseek_set(&obj, 0L);
read_high(&obj, BUF_SIZE);
}
obj.in_buf = 0;
moved = TRUE;
}
break;
case DLGK_PAGE_LAST:
obj.end_reached = TRUE;
/* Last page not in buffer? */
fpos = ftell_obj(&obj);
if (fpos < obj.file_size) {
/* Yes, we have to read it in */
lseek_end(&obj, -BUF_SIZE);
read_high(&obj, BUF_SIZE);
}
obj.in_buf = obj.bytes_read;
back_lines(&obj, (long) PAGE_LENGTH);
moved = TRUE;
break;
case DLGK_GRID_UP: /* Previous line */
if (!obj.begin_reached) {
back_lines(&obj, obj.page_length + 1);
next = 1;
moved = TRUE;
}
break;
case DLGK_PAGE_PREV: /* Previous page */
case DLGK_MOUSE(KEY_PPAGE):
if (!obj.begin_reached) {
back_lines(&obj, obj.page_length + PAGE_LENGTH);
moved = TRUE;
}
break;
case DLGK_GRID_DOWN: /* Next line */
if (!obj.end_reached) {
obj.begin_reached = 0;
next = -1;
moved = TRUE;
}
break;
case DLGK_PAGE_NEXT: /* Next page */
case DLGK_MOUSE(KEY_NPAGE):
if (!obj.end_reached) {
obj.begin_reached = 0;
moved = TRUE;
}
break;
case DLGK_BEGIN: /* Beginning of line */
if (obj.hscroll > 0) {
obj.hscroll = 0;
/* Reprint current page to scroll horizontally */
back_lines(&obj, obj.page_length);
moved = TRUE;
}
break;
case DLGK_GRID_LEFT: /* Scroll left */
if (obj.hscroll > 0) {
obj.hscroll--;
/* Reprint current page to scroll horizontally */
back_lines(&obj, obj.page_length);
moved = TRUE;
}
break;
case DLGK_GRID_RIGHT: /* Scroll right */
if (obj.hscroll < MAX_LEN) {
obj.hscroll++;
/* Reprint current page to scroll horizontally */
back_lines(&obj, obj.page_length);
moved = TRUE;
}
break;
#ifdef KEY_RESIZE
case KEY_RESIZE:
/* reset data */
height = old_height;
width = old_width;
back_lines(&obj, obj.page_length);
/* repaint */
dlg_clear();
dlg_del_window(dialog);
refresh();
dlg_mouse_free_regions();
goto retry;
#endif
}
} else {
switch (key) {
case '/': /* Forward search */
case 'n': /* Repeat forward search */
case '?': /* Backward search */
case 'N': /* Repeat backward search */
moved = perform_search(&obj, height, width, key, search_term);
fkey = FALSE;
break;
default:
beep();
break;
}
}
}
dlg_del_window(dialog);
free(obj.buf);
(void) close(obj.fd);
dlg_mouse_free_regions();
return result;
}
static bool
perform_search(MY_OBJ * obj, int height, int width, int key, char *search_term)
{
int dir;
long tempinx;
long fpos;
int result;
bool found;
bool temp, temp1;
bool moved = FALSE;
/* set search direction */
dir = (key == '/' || key == 'n') ? 1 : 0;
if (dir ? !obj->end_reached : !obj->begin_reached) {
if (key == 'n' || key == 'N') {
if (search_term[0] == '\0') { /* No search term yet */
(void) beep();
return FALSE;
}
/* Get search term from user */
} else if ((result = get_search_term(obj->text, search_term,
PAGE_LENGTH,
PAGE_WIDTH)) != DLG_EXIT_OK
|| search_term[0] == '\0') {
#ifdef KEY_RESIZE
if (result == DLG_EXIT_CANCEL) {
ungetch(key);
ungetch(KEY_RESIZE);
/* FALLTHRU */
}
#endif
/* ESC pressed, or no search term, reprint page to clear box */
(void) wattrset(obj->text, dialog_attr);
back_lines(obj, obj->page_length);
return TRUE;
}
/* Save variables for restoring in case search term can't be found */
tempinx = obj->in_buf;
temp = obj->begin_reached;
temp1 = obj->end_reached;
fpos = ftell_obj(obj) - obj->fd_bytes_read;
/* update 'in_buf' to point to next (previous) line before
forward (backward) searching */
back_lines(obj, (dir
? obj->page_length - 1
: obj->page_length + 1));
if (dir) { /* Forward search */
while ((found = match_string(obj, search_term)) == FALSE) {
if (obj->end_reached)
break;
}
} else { /* Backward search */
while ((found = match_string(obj, search_term)) == FALSE) {
if (obj->begin_reached)
break;
back_lines(obj, 2L);
}
}
if (found == FALSE) { /* not found */
(void) beep();
/* Restore program state to that before searching */
lseek_set(obj, fpos);
read_high(obj, BUF_SIZE);
obj->in_buf = tempinx;
obj->begin_reached = temp;
obj->end_reached = temp1;
/* move 'in_buf' to point to start of current page to
* re-print current page. Note that 'in_buf' always points
* to start of next page, so this is necessary
*/
back_lines(obj, obj->page_length);
} else { /* Search term found */
back_lines(obj, 1L);
}
/* Reprint page */
(void) wattrset(obj->text, dialog_attr);
moved = TRUE;
} else { /* no need to find */
(void) beep();
}
return moved;
}
/*
* Go back 'n' lines in text file. Called by dialog_textbox().
* 'in_buf' will be updated to point to the desired line in 'buf'.
*/
static void
back_lines(MY_OBJ * obj, long n)
{
int i;
long fpos;
long val_to_tabize;
obj->begin_reached = FALSE;
/* We have to distinguish between end_reached and !end_reached since at end
* of file, the line is not ended by a '\n'. The code inside 'if'
* basically does a '--in_buf' to move one character backward so as to
* skip '\n' of the previous line */
if (!obj->end_reached) {
/* Either beginning of buffer or beginning of file reached? */
if (obj->in_buf == 0) {
fpos = ftell_obj(obj);
if (fpos > obj->fd_bytes_read) { /* Not beginning of file yet */
/* We've reached beginning of buffer, but not beginning of file
* yet, so read previous part of file into buffer. Note that
* we only move backward for BUF_SIZE/2 bytes, but not BUF_SIZE
* bytes to avoid re-reading again in print_page() later
*/
/* Really possible to move backward BUF_SIZE/2 bytes? */
if (fpos < BUF_SIZE / 2 + obj->fd_bytes_read) {
/* No, move less than */
lseek_set(obj, 0L);
val_to_tabize = fpos - obj->fd_bytes_read;
} else { /* Move backward BUF_SIZE/2 bytes */
lseek_cur(obj, -(BUF_SIZE / 2 + obj->fd_bytes_read));
val_to_tabize = BUF_SIZE / 2;
}
read_high(obj, BUF_SIZE);
obj->in_buf = tabize(obj, val_to_tabize, (long *) 0);
} else { /* Beginning of file reached */
obj->begin_reached = TRUE;
return;
}
}
obj->in_buf--;
if (obj->buf[obj->in_buf] != '\n')
/* Something's wrong... */
dlg_exiterr("Internal error in back_lines().");
}
/* Go back 'n' lines */
for (i = 0; i < n; i++) {
do {
if (obj->in_buf == 0) {
fpos = ftell_obj(obj);
if (fpos > obj->fd_bytes_read) {
/* Really possible to move backward BUF_SIZE/2 bytes? */
if (fpos < BUF_SIZE / 2 + obj->fd_bytes_read) {
/* No, move less than */
lseek_set(obj, 0L);
val_to_tabize = fpos - obj->fd_bytes_read;
} else { /* Move backward BUF_SIZE/2 bytes */
lseek_cur(obj, -(BUF_SIZE / 2 + obj->fd_bytes_read));
val_to_tabize = BUF_SIZE / 2;
}
read_high(obj, BUF_SIZE);
obj->in_buf = tabize(obj, val_to_tabize, (long *) 0);
} else { /* Beginning of file reached */
obj->begin_reached = TRUE;
return;
}
}
} while (obj->buf[--(obj->in_buf)] != '\n');
}
obj->in_buf++;
}
int main(int argc, char* argv[])
{
int opt, option_index;
int test_num = -1;
int level = -1;
context_t ctx = NULL;
security_context_t ctx_check = NULL;
char *path = NULL;
char *log_path = NULL;
time_t t;
static struct option long_options[] = {
{"output", required_argument, 0, 'o'},
{"test", required_argument, 0, 't'},
{"file", required_argument, 0, 'f'},
{0, 0, 0, 0}
};
while ((opt = getopt_long(argc, argv, "o:t:f:",
long_options, &option_index)) != -1)
{
switch (opt) {
case 'o':
log_path = optarg;
if (freopen(log_path, "a+", stdout) == NULL) {
exit(-1);
}
if (freopen(log_path, "a+", stderr) == NULL) {
exit(-1);
}
break;
case 't':
test_num = atoi(optarg);
break;
case 'f':
path = optarg;
break;
default:
printf("bad argument.\n");
exit(-1);
}
}
if (test_num == -1) {
printf("no test specified.\n");
exit(-1);
} else if (path == NULL) {
printf("no path specified.\n");
exit(-1);
}
time(&t);
printf("\n%s", ctime(&t));
getcon(&ctx_check);
printf("Context: '%s'\n", ctx_check);
ctx = context_new(ctx_check);
const char *range = context_range_get(ctx);
if (strncmp(LVL_HIGH"-", range, sizeof(LVL_HIGH"-")-1) == 0) {
level = AT_HIGH;
printf("process is at high\n");
} else if (strncmp(LVL_LOW"-", range, sizeof(LVL_LOW"-")-1) == 0) {
level = AT_LOW;
printf("process is at low\n");
} else {
printf("unexpected level\n");
exit(-1);
}
fflush(stdout); fflush(stderr);
switch(test_num) {
case 1:
read_low(level, path);
break;
case 2:
read_high(level, path);
break;
case 3:
write_low(level, path);
break;
case 4:
write_high(level, path);
break;
default:
printf("invalid test chosen\n");
exit(-1);
break;
}
return 0;
}