X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Fsyscalls.c;h=5774dbe57e84e09b48eb2da380fc7430b458b31e;hb=d1f16adf5f2e94e836ea6658186a6ff6d94f54d8;hp=4275274e6bc1f86751919c8ebbb2480ee9b6807d;hpb=0b1620bcebe5b0c7da24a38f6bae99d3e21c180f;p=tpg%2Facess2.git

diff --git a/Kernel/syscalls.c b/Kernel/syscalls.c
index 4275274e..5774dbe5 100644
--- a/Kernel/syscalls.c
+++ b/Kernel/syscalls.c
@@ -95,6 +95,10 @@ void SyscallHandler(tSyscallRegs *Regs)
 	case SYS_GETUID:	ret = Threads_GetUID();	break;
 	case SYS_GETGID:	ret = Threads_GetGID();	break;
 	
+	// -- Set User/Group IDs
+	case SYS_SETUID:	Log("Setting User ID to %i", Regs->Arg1);	break;
+	case SYS_SETGID:	Log("Setting Group ID to %i", Regs->Arg1);	break;
+	
 	// -- Send Message
 	case SYS_SENDMSG:
 		ret = Proc_SendMessage(&err, Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3);
@@ -115,9 +119,20 @@ void SyscallHandler(tSyscallRegs *Regs)
 	// Binary Control
 	// ---
 	case SYS_EXECVE:
+		if( !Syscall_ValidString(Regs->Arg1) ) {
+			err = -EINVAL;
+			ret = -1;
+			break;
+		}
 		ret = Proc_Execve((char*)Regs->Arg1, (char**)Regs->Arg2, (char**)Regs->Arg3);
 		break;
 	case SYS_LOADBIN:
+		if( !Syscall_ValidString(Regs->Arg1)
+		||  !Syscall_Valid(sizeof(Uint), Regs->Arg2) ) {
+			err = -EINVAL;
+			ret = -1;
+			break;
+		}
 		ret = Binary_Load((char*)Regs->Arg1, (Uint*)Regs->Arg2);
 		break;
 	
@@ -125,6 +140,11 @@ void SyscallHandler(tSyscallRegs *Regs)
 	// Virtual Filesystem
 	// ---
 	case SYS_OPEN:
+		if( !Syscall_ValidString(Regs->Arg1) ) {
+			err = -EINVAL;
+			ret = -1;
+			break;
+		}
 		ret = VFS_Open((char*)Regs->Arg1, Regs->Arg2 | VFS_OPENFLAG_USER);
 		break;