Trying to reduce the ability for a fork bomb to fault the kernel

[tpg/acess2.git] / Usermode / Applications / init_src / main.c

diff --git a/Usermode/Applications/init_src/main.c b/Usermode/Applications/init_src/main.c
index 2a4d668..a88af9f 100644 (file)
--- a/Usermode/Applications/init_src/main.c
+++ b/Usermode/Applications/init_src/main.c
@@ -2,33 +2,110 @@
  * Acess2 System Init Task
  */
 #include <acess/sys.h>
+#include <stdlib.h>
+#include <stdio.h>
+//#include <spiderscript.h>
+//#include "common.h"
 
 // === CONSTANTS ===
 #define NULL   ((void*)0)
+#define NUM_TERMS      4
 #define        DEFAULT_TERMINAL        "/Devices/VTerm/0"
-#define DEFAULT_SHELL  "/Acess/CLIShell"
+#define DEFAULT_SHELL  "/Acess/SBin/login"
+#define DEFAULT_SCRIPT "/Acess/Conf/BootConf.isc"
+
+#define ARRAY_SIZE(x)  ((sizeof(x))/(sizeof((x)[0])))
+
+// === PROTOTYPES ===
+/*
+tSpiderVariable        *Script_System_IO_Open(tSpiderScript *, int, tSpiderVariable *);
+*/
+
+// === GLOBALS ===
+/*
+tSpiderFunction        gaScriptNS_IO_Fcns[] = {
+       {"Open", Script_System_IO_Open}
+};
+tSpiderNamespace       gaScriptNS_System[] = {
+       {
+               "IO",
+               0, NULL,
+               ARRAY_SIZE(gaScriptNS_IO_Fcns), gaScriptNS_IO_Fcns,
+               0, NULL
+       }
+};
+
+tSpiderNamespace       gaScriptNamespaces[] = {
+       {
+               "System",
+               ARRAY_SIZE(gaScriptNS_System), gaScriptNS_System,
+               0, NULL,
+               0, NULL
+       }
+};
+
+tSpiderVariant gScriptVariant = {
+       "init", 0,
+       ARRAY_SIZE(gaScriptNamespaces), gaScriptNamespaces
+};
+*/
 
 // === CODE ===
 /**
  * \fn int main(int argc, char *argv[])
+ * \brief Entrypoint
  */
 int main(int argc, char *argv[])
 {
         int    tid;
-       open(DEFAULT_TERMINAL, OPENFLAG_READ);  // Stdin
-       open(DEFAULT_TERMINAL, OPENFLAG_WRITE); // Stdout
-       open(DEFAULT_TERMINAL, OPENFLAG_WRITE); // Stderr
+        int    i;
+       char    termpath[sizeof(DEFAULT_TERMINAL)] = DEFAULT_TERMINAL;
+       char    *child_argv[2] = {DEFAULT_SHELL, 0};
        
-       write(1, 13, "Hello, World!");
+       // - Parse init script
        
-       tid = clone(CLONE_VM, 0);
-       if(tid == 0)
-       {
-               execve(DEFAULT_SHELL, NULL, NULL);
-               for(;;) __asm__ __volatile__("hlt");
+       // - Start virtual terminals
+       for( i = 0; i < NUM_TERMS; i++ )
+       {               
+               tid = clone(CLONE_VM, 0);
+               if(tid == 0)
+               {
+                       termpath[sizeof(DEFAULT_TERMINAL)-2] = '0' + i;
+                       
+                       open(termpath, OPENFLAG_READ);  // Stdin
+                       open(termpath, OPENFLAG_WRITE); // Stdout
+                       open(termpath, OPENFLAG_WRITE); // Stderr
+                       execve(DEFAULT_SHELL, child_argv, NULL);
+                       for(;;) sleep();
+               }
        }
        
+       // TODO: Implement message watching
        for(;;) sleep();
        
        return 42;
 }
+
+/**
+ * \brief Reads and parses the boot configuration script
+ * \param Filename     File to parse and execute
+ */
+void ExecuteScript(const char *Filename)
+{
+       /*
+       tSpiderScript   *script;
+       script = SpiderScript_ParseFile(&gScriptVariant, Filename);
+       SpiderScript_ExecuteMethod(script, "");
+       SpiderScript_Free(script);
+       */
+}
+
+/**
+ * \brief Open a file
+ */
+/*
+tSpiderVariable        *Script_System_IO_Open(tSpiderScript *Script, int NArgs, tSpiderVariable *Args)
+{
+       return NULL;
+}
+*/