From 2c4e2813c105e40b962e7982b40a348dc0b272e6 Mon Sep 17 00:00:00 2001
From: John Hodge <tpg@portege.thepowersgang.com>
Date: Sat, 26 Sep 2009 23:03:58 +0800
Subject: [PATCH] Implemented SYS_CHDIR at user level. Added process dump key
 combo to KB driver

---
 Kernel/drv/kb.c                            |  4 ++++
 Usermode/Applications/CLIShell_src/main.c  | 22 +++++++++++++++++++---
 Usermode/Libraries/libacess.so_src/vfs.asm |  1 +
 3 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/Kernel/drv/kb.c b/Kernel/drv/kb.c
index 0de8fe12..fc078974 100644
--- a/Kernel/drv/kb.c
+++ b/Kernel/drv/kb.c
@@ -12,6 +12,9 @@
 // === CONSTANTS ===
 #define	KB_BUFFER_SIZE	1024
 
+// === IMPORTS ===
+void	Threads_Dump();
+
 // === PROTOTYPES ===
  int	KB_Install(char **Arguments);
 void	KB_IRQHandler();
@@ -178,6 +181,7 @@ void KB_IRQHandler()
 		switch(ch)
 		{
 		case 'D':	__asm__ __volatile__ ("xchg %bx, %bx");	break;
+		case 'P':	Threads_Dump();	break;
 		}
 	}
 	
diff --git a/Usermode/Applications/CLIShell_src/main.c b/Usermode/Applications/CLIShell_src/main.c
index 5c431bd8..24c93ddf 100644
--- a/Usermode/Applications/CLIShell_src/main.c
+++ b/Usermode/Applications/CLIShell_src/main.c
@@ -48,7 +48,7 @@ int main(int argc, char *argv[], char *envp[])
 	 int	bCached = 1;
 	t_sysFInfo	info;
 	
-	//Command_Clear(0, NULL);
+	Command_Clear(0, NULL);
 	
 	{
 		char	*tmp = getenv("CWD");
@@ -70,7 +70,6 @@ int main(int argc, char *argv[], char *envp[])
 		if(saArgs[0])	free(saArgs);
 		if(!bCached)	free(sCommandStr);
 		bCached = 0;
-		write(_stdout, 1, "\n");
 		write(_stdout, strlen(gsCurrentDirectory), gsCurrentDirectory);
 		write(_stdout, 3, "$ ");
 		
@@ -131,6 +130,7 @@ int main(int argc, char *argv[], char *envp[])
 		}
 		// Load new executable
 		pid = clone(CLONE_VM, 0);
+		printf("pid = %i\n", pid);
 		if(pid == 0)	execve(gsTmpBuffer, &saArgs[1], envp);
 		if(pid <= 0) {
 			Print("Unablt to create process: `");Print(gsTmpBuffer);Print("'\n");	// Error Message
@@ -155,6 +155,7 @@ char *ReadCommandLine(int *Length)
 	 
 	// Preset Variables
 	ret = malloc( space+1 );
+	if(!ret)	return NULL;
 	len = 0;
 	pos = 0;
 		
@@ -162,7 +163,22 @@ char *ReadCommandLine(int *Length)
 	do {
 		read(_stdin, 1, &ch);	// Read Character from stdin (read is a blocking call)
 		// Ignore control characters
-		if(ch < 0)	continue;
+		if(ch == '\x1B') {
+			read(_stdin, 1, &ch);	// Read control character
+			switch(ch)
+			{
+			case 'D':	if(pos)	pos--;	break;
+			case 'C':	if(pos<len)	pos++;	break;
+			case '[':
+				read(_stdin, 1, &ch);	// Read control character
+				switch(ch)
+				{
+				case 'D':	if(pos)	pos--;	break;
+				case 'C':	if(pos<len)	pos++;	break;
+				}
+			}
+			continue;
+		}
 		// Backspace
 		if(ch == '\b') {
 			if(len <= 0)		continue;	// Protect against underflows
diff --git a/Usermode/Libraries/libacess.so_src/vfs.asm b/Usermode/Libraries/libacess.so_src/vfs.asm
index 4cd41539..1f9ba34e 100644
--- a/Usermode/Libraries/libacess.so_src/vfs.asm
+++ b/Usermode/Libraries/libacess.so_src/vfs.asm
@@ -16,3 +16,4 @@ SYSCALL4	seek, SYS_SEEK		; int, int64_t, int
 SYSCALL3	finfo, SYS_FINFO	; int, void*, int
 SYSCALL2	readdir, SYS_READDIR	; int, char*
 SYSCALL2	_SysGetACL, SYS_GETACL	; int, void*
+SYSCALL1	chdir, SYS_CHDIR	; char*
-- 
2.20.1