1 files changed, 194 insertions, 0 deletions
diff --git a/ui.c b/ui.c
new file mode 100644
index 0000000..c8a6e90
--- /dev/null
+++ b/ui.c
@@ -0,0 +1,194 @@
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <signal.h>
+#include <pthread.h>
+#include <errno.h>
+#include <string.h>
+#include <fcntl.h>
+#include <ncurses.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/sysinfo.h>
+
+#include "ui.h"
+
+#define PKGNAME "nask"
+#define LOGLEN 128
+#define DEFWIN stdscr
+#define PWSTR "PASSWORD: "
+#define MAXINPUT 40
+#define MAXPASS 64
+#define MAXTRIES 3
+#define SRELPOSY -4
+#define PWTIMEOUT 10
+#define APPTIMEOUT 600
+#define SHTDWN_CMD "echo 'o' >/proc/sysrq-trigger"
+
+#define RET_OK 0
+#define RET_FORK -1
+#define RET_SHELL 127
+#define RET_DENIED 512
+#define RET_BUSY 1280
+
+
+static WINDOW *wnd_main;
+static struct nask_ui *nui = NULL;
+static pthread_t thrd;
+static bool active;
+static pthread_cond_t cnd_update = PTHREAD_COND_INITIALIZER;
+static pthread_mutex_t mtx_update = PTHREAD_MUTEX_INITIALIZER;
+
+pthread_mutex_t tmretmtx = PTHREAD_MUTEX_INITIALIZER;
+pthread_mutex_t ncbsy = PTHREAD_MUTEX_INITIALIZER;
+
+
+static void getwmaxyx(WINDOW *wnd, int x, int y, size_t len, int *startyp, int *startxp)
+{
+  int maxy, maxx;
+
+  getmaxyx(wnd, maxy, maxx);
+  *startxp = ( ((int)(maxx/2)) - x - ((int)(len/2)));
+  *startyp = ( ((int)(maxy/2)) - y);
+}
+
+static void print_rel_to_wnd(WINDOW *wnd, int x, int y, char *text, size_t addwidth)
+{
+  int startx, starty;
+  size_t len = strlen(text);
+
+  getwmaxyx(wnd, x, y, len+addwidth, &starty, &startx);
+
+  pthread_mutex_lock(&ncbsy);
+  mvhline(starty-2, startx-2, 0, len+addwidth+3);
+  mvhline(starty+2, startx-2, 0, len+addwidth+3);
+  mvvline(starty-1, startx-3, 0, 3);
+  mvvline(starty-1, startx+len+addwidth+1, 0, 3);
+  mvaddch(starty-2, startx-3, ACS_ULCORNER);
+  mvaddch(starty+2, startx-3, ACS_LLCORNER);
+  mvaddch(starty-2, startx+len+addwidth+1, ACS_URCORNER);
+  mvaddch(starty+2, startx+len+addwidth+1, ACS_LRCORNER);
+  mvwprintw(wnd, starty, startx, text);
+  pthread_mutex_unlock(&ncbsy);
+}
+
+static size_t print_pw_status(WINDOW *wnd, char *text)
+{
+  int startx, starty;
+  size_t len = strlen(text);
+
+  curs_set(0);
+  getwmaxyx(wnd, 0, SRELPOSY, len+4, &starty, &startx);
+  pthread_mutex_lock(&ncbsy);
+  attron(A_BLINK);
+  mvwprintw(wnd, starty, startx-2, "< ");
+  mvwprintw(wnd, starty, startx+len, " >");
+  attroff(A_BLINK);
+  attron(A_BOLD | COLOR_PAIR(1));
+  mvwprintw(wnd, starty, startx, "%s", text);
+  attroff(A_BOLD | COLOR_PAIR(1));
+  pthread_mutex_unlock(&ncbsy);
+  return (strlen(text));
+}
+
+static void clear_pw_status(WINDOW *wnd, size_t len)
+{
+  int startx, starty, curx, cury;
+  char buf[len+5];
+  if (len <= 0) return;
+
+  attroff(A_BLINK | A_BOLD | COLOR_PAIR(1));
+  memset(buf, ' ', len+4);
+  buf[len+4] = '\0';
+
+  pthread_mutex_lock(&ncbsy);
+  getyx(wnd, cury, curx);
+  getwmaxyx(wnd, 0, SRELPOSY, len+4, &starty, &startx);
+  mvwprintw(wnd, starty, startx-2, "%s", buf);
+  wmove(wnd, cury, curx);
+  curs_set(1);
+  pthread_mutex_unlock(&ncbsy);
+}
+
+void register_ui_elt(ui_callback uicb, void *data)
+{
+  struct nask_ui *tmp;
+
+  if (nui == NULL) {
+    nui = calloc(1, sizeof(struct nask_ui));
+    nui->next = NULL;
+  }
+  tmp = nui;
+  while (tmp->next != NULL) {
+   tmp = tmp->next;
+  }
+  tmp->next = calloc(1, sizeof(struct nask_ui));
+  tmp->next->ui_elt_cb = uicb;
+  tmp->next->do_update = true;
+  tmp->next->data = data;
+  tmp->next->next = NULL;
+}
+
+static void *ui_thrd(void *arg) {
+  struct timeval now;
+  struct timespec wait;
+
+  pthread_mutex_lock(&mtx_update);
+  gettimeofday(&now, NULL);
+  wait.tv_sec = now.tv_sec + 1;
+  wait.tv_nsec = now.tv_usec;
+  while (active == true) {
+    pthread_cond_timedwait(&cnd_update, &mtx_update, &wait);
+    if (active == false) break;
+  }
+  pthread_mutex_unlock(&mtx_update);
+  return (NULL);
+}
+
+int do_update(void) {
+  
+}
+
+int run_ui_thrd(void) {
+  active = true;
+  return (pthread_create(&thrd, NULL, &ui_thrd, NULL));
+}
+
+int stop_ui_thrd(void) {
+  active = false;
+  return (pthread_join(thrd, NULL));
+}
+
+void init_ui(void)
+{
+  wnd_main = initscr();
+  start_color();
+  init_pair(1, COLOR_RED, COLOR_BLACK);
+  init_pair(2, COLOR_WHITE, COLOR_WHITE);
+  init_pair(3, COLOR_BLACK, COLOR_WHITE);
+  raw();
+  keypad(DEFWIN, TRUE);
+  noecho();
+  cbreak();
+}
+
+void free_ui(void)
+{
+  endwin();
+  clear();
+}
+
+int main(int argc, char **argv)
+{
+  init_ui();
+
+  if (run_ui_thrd() != 0) {
+    exit(EXIT_FAILURE);
+  }
+  stop_ui_thrd();
+
+  free_ui();
+  return (0);
+}