migrating shell to "userspace"

1 files changed, 86 insertions, 1 deletions

diff --git a/userspace/foolshell.c b/userspace/foolshell.c
index bc02102..7a029ef 100644
--- a/userspace/foolshell.c
+++ b/userspace/foolshell.c
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <string.h>
 #include "syscalls.c"
 
 void hello() {
@@ -12,6 +13,7 @@ void prompt() {
         "$ "
     );
 }
+
 int main(int argc, char **argv) 
 {
     syscalls_init();
@@ -26,9 +28,92 @@ int main(int argc, char **argv)
 	prompt();
         fgets(buf,255,input);
 	buf[strlen(buf)-1]=0;
-	puts(buf);
+//	puts(buf);
+	process(buf);
+
     }
 
 
     return 0;
 }
+
+int process(char *command)
+{
+	// copied from trottelshell
+
+    if(!strcmp(command,"HELP"))
+    {
+	puts("foolshell: supported built-in commands: HELP, ECHO, TIME, MEM, PROC, TASKS, ALLOC, READ, SYSCALL.");
+    }
+    else if(!strcmp(command,"TIME"))
+    {
+//	uint32_t time=task_system_clock;
+//	log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"%d seconds passed since system start.",(time/25));
+	puts("foolshell: TIME not supported now.");
+    }
+    else if(!strcmp(command,"MEM"))
+    {
+	//mmap_show_free();	
+	puts("foolshell: MEM not supported now.");
+    }
+    else if(!strcmp(command,"PROC"))
+    {
+	/*
+        for(int i=0;i<SMP_MAX_PROC;i++)
+	{
+	    if(cpu_counter[i]!=0)
+		log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"cpu: %d => %d.",i,cpu_counter[i]);
+	}
+	*/
+	puts("foolshell: PROC not supported now.");
+    }
+    else if(!strcmp(command,"TASKS"))
+    {
+	//log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"%d %d %d",c1,c2,c2);
+	puts("foolshell: TASKS not supported now.");
+    }
+    else if(!strcmp(command,"ALLOC"))
+    {
+	/*
+	uint32_t *malloc= pmmngr_alloc_block();
+	log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"allocated 4KB block at: %08x.",malloc);
+	*/
+	puts("foolshell: ALLOC not supported now.");
+    }
+    else if(!strcmp(command,"SYSCALL"))
+    {
+
+	puts("system call 10");
+	unsigned int ebx; // will hold return value;
+
+	// system call 
+	asm("pusha");
+	asm("mov $10,%eax"); // select syscall 10 (example_syscall)
+	asm("mov $666,%edx");
+	asm("mov $333,%ecx");
+	asm("int $0x80"); // actual syscall ! interrupt
+        asm("mov %%ebx, %0": "=b" (ebx));
+	asm("popa");
+	//
+
+	printf("system call returned %i\n",ebx);
+
+    }
+    else if(!strcmp(command,"ECHO"))
+    {
+
+	printf("%s\n",command);
+
+    }
+    else
+    {
+	puts("foolshell: command not found");
+    }
+
+    //
+}
+
+
+
+
+