initialHEADmaster

1 files changed, 113 insertions, 0 deletions

diff --git a/hosts.c b/hosts.c
new file mode 100644
index 0000000..fc0db34
--- /dev/null
+++ b/hosts.c
@@ -0,0 +1,113 @@
+#include <ncurses.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define MAX_LINES 1024
+#define MAX_LINE_LEN 512
+
+char *lines[MAX_LINES];
+int total_lines = 0;
+int current_line = 0;
+
+void load_hosts_file() {
+    FILE *fp = fopen("/etc/hosts", "r");
+    if (!fp) exit(1);
+
+    char buffer[MAX_LINE_LEN];
+    while (fgets(buffer, sizeof(buffer), fp) && total_lines < MAX_LINES) {
+        lines[total_lines] = strdup(buffer);
+        total_lines++;
+    }
+
+    fclose(fp);
+}
+
+void cleanup() {
+    for (int i = 0; i < total_lines; i++) {
+        free(lines[i]);
+    }
+}
+
+void draw_screen() {
+    clear();
+    int max_y, max_x;
+    getmaxyx(stdscr, max_y, max_x);
+
+    for (int i = 0; i < max_y && (i + current_line) < total_lines; i++) {
+        mvprintw(i, 0, "%s", lines[i + current_line]);
+    }
+
+    refresh();
+}
+
+int main() {
+    load_hosts_file();
+
+    initscr();
+    noecho();
+    cbreak();
+    keypad(stdscr, TRUE);
+
+    int ch;
+    draw_screen();
+    while ((ch = getch()) != 'q') {
+        switch (ch) {
+            case 'j':
+                if (current_line < total_lines - 1) current_line++;
+                break;
+            case 'k':
+                if (current_line > 0) current_line--;
+                break;
+            case 'c': {
+                for (int i = 0; i < total_lines; i++) {
+                    if (lines[i][0] == '\n' || lines[i][0] == '#') {
+                        free(lines[i]);
+                        lines[i] = NULL;
+                    }
+                }
+                int new_total_lines = 0;
+                for (int i = 0; i < total_lines; i++) {
+                    if (lines[i] != NULL) {
+                        lines[new_total_lines++] = lines[i];
+                    }
+                }
+                total_lines = new_total_lines;
+                draw_screen();
+                break;
+            case 'a': {
+                echo();
+                char url[256];
+                mvprintw(LINES - 1, 0, "URL oder Pfad: ");
+                getnstr(url, 255);
+                noecho();
+
+                char tmpfile[] = "/tmp/hosts_tmp_XXXXXX";
+                int fd = mkstemp(tmpfile);
+                close(fd);
+
+                char cmd[512];
+                snprintf(cmd, sizeof(cmd), "curl -fsSL '%s' -o %s", url, tmpfile);
+                if (system(cmd) == 0) {
+                    FILE *fp = fopen(tmpfile, "r");
+                    if (fp) {
+                        char buffer[MAX_LINE_LEN];
+                        while (fgets(buffer, sizeof(buffer), fp) && total_lines < MAX_LINES) {
+                            lines[total_lines++] = strdup(buffer);
+                        }
+                        fclose(fp);
+                    }
+                }
+                unlink(tmpfile);
+                draw_screen();
+                break;
+            }
+        }
+        draw_screen();
+    }
+
+    endwin();
+    cleanup();
+    return 0;
+}
+