From 1cb7a6bd1ab40188987feeaeefce021d441819e6 Mon Sep 17 00:00:00 2001
From: Michal Idziorek <m.i@gmx.at>
Date: Mon, 24 Nov 2014 03:11:16 +0100
Subject: some progress with userspace

---
 kernel/syscalls.c     |  4 +++-
 userspace/Makefile    |  2 +-
 userspace/foolshell.c |  8 ++++++--
 userspace/ls.c        | 46 ++++++++++++++++++++++++++++------------------
 4 files changed, 38 insertions(+), 22 deletions(-)

diff --git a/kernel/syscalls.c b/kernel/syscalls.c
index 941a8e3..590d96e 100644
--- a/kernel/syscalls.c
+++ b/kernel/syscalls.c
@@ -194,6 +194,7 @@ int syscall_execve(char *name, char **argv, char **env)
     //
     char *env1="PS1=$ ";
     char *env2="PATH=/bin";
+    char *env3="PWD=/home/miguel";
     char environstr[256];
 
     char **oldenviron=env;
@@ -203,7 +204,8 @@ int syscall_execve(char *name, char **argv, char **env)
     {
 	environ[0]=env1;
 	environ[1]=env2;
-	environ[2]=NULL;
+	environ[2]=env3;
+	environ[3]=NULL;
     }
     else
     {
diff --git a/userspace/Makefile b/userspace/Makefile
index 3327375..3de83ea 100644
--- a/userspace/Makefile
+++ b/userspace/Makefile
@@ -16,7 +16,7 @@ ext2.img: $(PROGS)
 	echo "hello one" > mnt/home/miguel/test1.txt
 	mkdir -p mnt/bin
 	cp $^ mnt/bin
-	cp ~/temp/fool-os-stuff/binutils-build-host-foolos/binutils/readelf mnt/bin
+#	cp ~/temp/fool-os-stuff/binutils-build-host-foolos/binutils/readelf mnt/bin
 	mkdir -p mnt/etc
 	echo "127.0.0.1  localhost" > mnt/etc/hosts
 	sync
diff --git a/userspace/foolshell.c b/userspace/foolshell.c
index 2a70940..29e8438 100644
--- a/userspace/foolshell.c
+++ b/userspace/foolshell.c
@@ -25,7 +25,7 @@ void hello()
 
 void prompt() 
 {
-    printf("%s",getenv("PS1"));
+    printf("%s%s",getenv("PWD"),getenv("PS1"));
 }
 
 int main(int argc, char **argv) 
@@ -105,7 +105,11 @@ int process(char *buf)
 
     if(!strcmp(command,"help"))
     {
-	puts("foolshell: supported built-in commands: 'help', 'echo [string]', 'malloc [bytes]', 'free [address]', 'getenv [var]', 'putenv [var] [val]', 'env'");
+	puts("foolshell: supported built-in commands: 'help', 'echo [string]', 'malloc [bytes]', 'free [address]', 'getenv [var]', 'putenv [var] [val]', 'env' 'cd [dir]'");
+    }
+    else if(!strcmp(command,"cd"))
+    {
+
     }
     else if(!strcmp(command,"echo"))
     {
diff --git a/userspace/ls.c b/userspace/ls.c
index 5b5034b..4cbcb6d 100644
--- a/userspace/ls.c
+++ b/userspace/ls.c
@@ -7,28 +7,38 @@ void usage()
 
 int main(int argc, char **argv)
 {
-	fs_dirent *dirs=malloc(sizeof(fs_dirent)*25);
+    char *dir;
+    fs_dirent *dirs=malloc(sizeof(fs_dirent)*25);
 
-	if(argc!=2)
+    if(argc!=2)
+    {
+	dir=getenv("PWD");
+    }
+    else
+    {
+	if(argv[1][0]=="/")dir=argv[1];
+	else
 	{
-	    usage();
-	    return 0;
-	}
-
-	char *dir=argv[1];
-	int  ls=readdir(dir,dirs,25);
-	if(ls==-1)
-	{
-	    printf("%s: file or directory '%s' not found.\n",argv[0],dir);
-	    return 0;
-	}
-    
+	    char buf[256];
+	    sprintf(buf,"%s/%s",getenv("PWD"),argv[1]);
+	    dir=buf;
 
-	int i;
-	for(i=0;i<ls;i++)
-	{
-	    printf("%i %s%c\n",dirs[i].inode, dirs[i].name, ((dirs[i].type==FS_FILE_TYPE_DIR)?'/':' '));
 	}
+    }
 
+    int  ls=readdir(dir,dirs,25);
+    if(ls==-1)
+    {
+	printf("%s: file or directory '%s' not found.\n",argv[0],dir);
 	return 0;
+    }
+
+
+    int i;
+    for(i=0;i<ls;i++)
+    {
+	printf("%i %s%c\n",dirs[i].inode, dirs[i].name, ((dirs[i].type==FS_FILE_TYPE_DIR)?'/':' '));
+    }
+
+    return 0;
 }
-- 
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