Fix dlmalloc horror bug - mman_map overwrites application code

user/tb/main.c

@@ -8,16 +8,21 @@
 #include <ansiq/all.h>
 #include <system/system.h>
 #include <sysdefs/ipcpipe.h>
+#include <sysdefs/ioctl.h>
+#include <sysdefs/processctl.h>
+#include <errors.h>
 
-static struct {
+struct {
   char *modestr;
   enum { MODE_INTERACTIVE = 1, MODE_RUNFILE = 2 } mode;
+  char *filepath;
 } CONFIG;
 
 #define LINEBUF_MAX 1024
 
 static Arg ARGS[] = {
   ARG("-m", ARG_STRING, &CONFIG.modestr),
+  ARG("-f", ARG_STRING, &CONFIG.filepath),
   ARG_END(),
 };
 
@@ -38,11 +43,18 @@ void set_config(void) {
   } else {
     CONFIG.mode = MODE_RUNFILE;
   }
-  uprintf("CONFIG.mode = %d\n", CONFIG.mode);
 }
 
 void process_cmd(char *cmdtext) {
+  
+}
 
+void do_file(char *filepath) {
+  int32_t ioh = ioctl(IOCTL_NOHANDLE, IOCTL_OPENF, (uint64_t)filepath, IOCTL_F_READ, 0);
+  if (ioh < 0) {
+    LOG(LOG_ERR, "Could not open %s: %s\n", filepath, ERRSTRING(ioh));
+    return;
+  }
 }
 
 void do_mode_interactive(void) {
@@ -62,8 +74,6 @@ void do_mode_interactive(void) {
     }
     linebuf[cursor - 1] = '\0';
     uprintf("\n");
-
-    process_cmd(linebuf);
   }
 }
 
@@ -72,5 +82,11 @@ void main(void) {
 
   if (CONFIG.mode == MODE_INTERACTIVE) {
     do_mode_interactive();
+  } else if (CONFIG.mode == MODE_RUNFILE) {
+    if (CONFIG.filepath == NULL) {
+      uprintf("No file provided\n");
+      return;
+    }
+    do_file(CONFIG.filepath);
   }
 }