+static void
+finish(int sig)
+{
+ endwin();
+#if NO_LEAKS
+ if (vec_lines != 0) {
+ int n;
+ for (n = 0; n < num_lines; ++n) {
+ free(vec_lines[n]);
+ }
+ free(vec_lines);
+ }
+#endif
+ ExitProgram(sig != 0 ? EXIT_FAILURE : EXIT_SUCCESS);
+}
+
+static void
+show_all(const char *tag)
+{
+ int i;
+ char temp[BUFSIZ];
+ NCURSES_CH_T *s;
+ time_t this_time;
+
+#if CAN_RESIZE
+ _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp))
+ "%.20s (%3dx%3d) col %d ", tag, LINES, COLS, shift);
+ i = (int) strlen(temp);
+ if ((i + 7) < (int) sizeof(temp)) {
+ _nc_SPRINTF(temp + i, _nc_SLIMIT(sizeof(temp) - (size_t) i)
+ "view %.*s",
+ (int) (sizeof(temp) - 7 - (size_t) i),
+ fname);
+ }
+#else
+ (void) tag;
+ _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp))
+ "view %.*s", (int) sizeof(temp) - 7, fname);
+#endif
+ move(0, 0);
+ printw("%.*s", COLS, temp);
+ clrtoeol();
+ this_time = time((time_t *) 0);
+ _nc_STRNCPY(temp, ctime(&this_time), (size_t) 30);
+ if ((i = (int) strlen(temp)) != 0) {
+ temp[--i] = 0;
+ if (move(0, COLS - i - 2) != ERR)
+ printw(" %s", temp);
+ }
+
+ scrollok(stdscr, FALSE); /* prevent screen from moving */
+ for (i = 1; i < LINES; i++) {
+ int len;
+ int actual = (int) (lptr + i - vec_lines);
+ if (actual >= num_lines) {
+ clrtobot();
+ break;
+ }
+ move(i, 0);
+ printw("%3d:", actual);
+ clrtoeol();
+ if ((s = lptr[i - 1]) == 0) {
+ continue;
+ }
+ len = ch_len(s);
+ if (len > shift) {
+#if USE_WIDEC_SUPPORT
+ add_wchstr(s + shift);
+#else
+ addchstr(s + shift);
+#endif
+ }
+#if defined(NCURSES_VERSION) || defined(HAVE_WCHGAT)
+ if (try_color)
+ wchgat(stdscr, -1, WA_NORMAL, my_pair, NULL);
+#endif
+ }
+ setscrreg(1, LINES - 1);
+ scrollok(stdscr, TRUE);
+ refresh();
+}
+
+#if CAN_RESIZE
+/*
+ * This uses functions that are "unsafe", but it seems to work on SunOS.
+ * Usually: the "unsafe" refers to the functions that POSIX lists which may be
+ * called from a signal handler. Those do not include buffered I/O, which is
+ * used for instance in wrefresh(). To be really portable, you should use the
+ * KEY_RESIZE return (which relies on ncurses' sigwinch handler).
+ *
+ * The 'wrefresh(curscr)' is needed to force the refresh to start from the top
+ * of the screen -- some xterms mangle the bitmap while resizing.
+ */
+static void
+adjust(int sig)
+{
+ if (waiting || sig == 0) {
+ struct winsize size;
+
+ if (ioctl(fileno(stdout), TIOCGWINSZ, &size) == 0) {
+ resize_term(size.ws_row, size.ws_col);
+ wrefresh(curscr);
+ show_all(sig ? "SIGWINCH" : "interrupt");
+ }
+ interrupted = FALSE;
+ } else {
+ interrupted = TRUE;
+ }
+ (void) signal(SIGWINCH, adjust); /* some systems need this */
+}
+#endif /* CAN_RESIZE */
+
+static void
+read_file(const char *filename)
+{
+ FILE *fp;
+ int pass;
+ int k;
+ size_t j;
+ size_t len;
+ struct stat sb;
+ char *my_blob;
+ char **my_vec = 0;
+
+ if (stat(filename, &sb) != 0
+ || (sb.st_mode & S_IFMT) != S_IFREG) {
+ failed("input is not a file");
+ }
+
+ if (sb.st_size == 0) {
+ failed("input is empty");
+ }
+
+ if ((fp = fopen(filename, "r")) == 0) {
+ failed("cannot open input-file");
+ }
+
+ if ((my_blob = malloc((size_t) sb.st_size + 1)) == 0) {
+ failed("cannot allocate memory for input-file");
+ }
+
+ len = fread(my_blob, sizeof(char), (size_t) sb.st_size, fp);
+ my_blob[sb.st_size] = '\0';
+ fclose(fp);
+
+ for (pass = 0; pass < 2; ++pass) {
+ char *base = my_blob;
+ k = 0;
+ for (j = 0; j < len; ++j) {
+ if (my_blob[j] == '\n') {
+ if (pass) {
+ my_vec[k] = base;
+ my_blob[j] = '\0';
+ }
+ base = my_blob + j + 1;
+ ++k;
+ }
+ }
+ num_lines = k;
+ if (base != (my_blob + j))
+ ++num_lines;
+ if (!pass &&
+ ((my_vec = typeCalloc(char *, (size_t) k + 2)) == 0)) {
+ failed("cannot allocate line-vector #1");
+ }
+ }
+ if ((vec_lines = typeCalloc(NCURSES_CH_T *, (size_t) num_lines + 2)) == 0)
+ failed("cannot allocate line-vector #2");
+
+ Trace(("slurp the file"));
+ for (k = 0; k < num_lines; ++k) {
+ char *buf = my_vec[k];
+ char temp[BUFSIZ], *s, *d;
+ int col;
+
+ lptr = &vec_lines[k];
+
+#if USE_WIDEC_SUPPORT
+ if (lptr == vec_lines) {
+ if (!memcmp("", buf, 3)) {
+ Trace(("trim BOM"));
+ s = buf + 3;
+ d = buf;
+ do {
+ } while ((*d++ = *s++) != '\0');
+ }
+ }
+#endif
+
+ /* convert tabs and nonprinting chars so that shift will work properly */
+ for (s = buf, d = temp, col = 0; (*d = *s) != '\0'; s++) {
+ if (*d == '\r') {
+ if (s[1] == '\n') {
+ continue;
+ } else {
+ break;
+ }
+ }
+ if (*d == '\n') {
+ *d = '\0';
+ break;
+ } else if (*d == '\t') {
+ col = (col | 7) + 1;
+ while ((d - temp) != col)
+ *d++ = ' ';
+ } else
+#if USE_WIDEC_SUPPORT
+ col++, d++;
+#else
+ if (isprint(UChar(*d))) {
+ col++;
+ d++;
+ } else {
+ _nc_SPRINTF(d, _nc_SLIMIT(sizeof(temp) - (d - buf))
+ "\\%03o", UChar(*s));
+ d += strlen(d);
+ col = (int) (d - temp);
+ }
+#endif
+ }
+ *lptr = ch_dup(temp);
+ }
+
+ free(my_vec);
+ free(my_blob);
+}
+