1 files changed, 35 insertions, 28 deletions

diff --git a/interface/syscalls.c b/interface/syscalls.c
index 7d12002..06846bb 100644
--- a/interface/syscalls.c
+++ b/interface/syscalls.c
@@ -1,3 +1,5 @@
+#include "syscalls.h"
+
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
@@ -7,8 +9,9 @@
 #include <sys/stat.h>
 #include <sys/termios.h>
 
-#include "fs.h"
-#include "syscalls.h"
+#include <errno.h>
+
+// BASICS //
 
 // everybody is root
 uid_t getuid(void)
@@ -27,6 +30,20 @@ void sync(void)
 {
 }
 
+// set working directory - we simply save this in PWD environment var
+int chdir(const char *path)
+{
+        sprintf(buf,"PWD=%s",path);
+        putenv(buf);
+        return 0; // assume success
+}
+
+// get working dir (see chdir)
+char* getwd(char *buf)
+{
+        return getenv("PWD");
+}
+
 // C NEWLIB // 
 
 // first of all we have a few posix syscalls required by newlib 
@@ -202,7 +219,7 @@ int write(int file, char *ptr, int len)
 //////////////////////////////////////////////////////////////////////
 
 
-int _readdir(const char *name,fs_dirent *dirs,int max)
+int _readdir(const char *name,void *dirs,int max)
 {
     return syscall(SYSCALL_READDIR,name,dirs,max);
 }
@@ -222,23 +239,16 @@ int _lstat(const char *file, struct stat *st)
     return syscall(SYSCALL_LSTAT,file,st,0);
 }
 
-// EXTRA STUFF
-
-        static struct termios tty1; // only one global terminal managed here... more might/should follow
-        //TODO : implement this properly
+// termios
 
-       int tcgetattr(int fd, struct termios *termios_p)
+        int tcgetattr(int fd, struct termios *termios_p)
         {
-           syscall(SYSCALL_UNIMPLEMENTED,"tcgetattr",0,0);
-           *termios_p=tty1;
-           return 0;
+           return syscall(SYSCALL_TCGETATTR,fd,termios_p,0);
         }
 
         int tcsetattr(int fd, int optional_actions, const struct termios *termios_p)
         {
-           syscall(SYSCALL_UNIMPLEMENTED,"tcsetattr",0,0);
-           tty1=*termios_p;
-           return 0;
+           return syscall(SYSCALL_TCSETATTR,fd,termios_p,0);
         }
 
 /*
@@ -302,15 +312,6 @@ int _lstat(const char *file, struct stat *st)
             return syscall(SYSCALL_UNIMPLEMENTED,"mkdir",0,0);
     }
 
-    int chdir(const char *path)
-    {
-            return syscall(SYSCALL_UNIMPLEMENTED,"chdir",0,0);
-    }
-
-    char* getwd(char *buf)
-    {
-            return syscall(SYSCALL_UNIMPLEMENTED,"getwd",0,0);
-    }
 
     char *ttyname(int fd)
     {
@@ -319,14 +320,15 @@ int _lstat(const char *file, struct stat *st)
 
 //
 
-    struct dirent *readdir(DIR *dirp)
+    struct void *readdir(DIR *dirp) // returns dirent
     {
             return syscall(SYSCALL_UNIMPLEMENTED,"readdir",0,0);
     }
 
     DIR *opendir(const char *name)
     {
-            return syscall(SYSCALL_UNIMPLEMENTED,"opendir",0,0);
+            errno=EACCES;
+            return syscall(SYSCALL_UNIMPLEMENTED,"opendir",name,0);
     }
 
     int closedir(DIR *dirp)
@@ -432,8 +434,7 @@ int gethostname(char *name, size_t len)
 
 ssize_t readlink(const char *pathname, char *buf, size_t bufsiz)
 {
-    syscall(SYSCALL_UNIMPLEMENTED,"readlink",0,0);
-    return 0;
+    return syscall(SYSCALL_UNIMPLEMENTED,"readlink",pathname,0);
 }
 
 int rmdir(const char *pathname)
@@ -468,7 +469,7 @@ int execvp(const char *file, char *const argv[])
 
 long sysconf(int name)
 {
-    syscall(SYSCALL_UNIMPLEMENTED,"sysconf",0,0);
+    return syscall(SYSCALL_UNIMPLEMENTED,"sysconf",name,0);
     return 0;
 }
 
@@ -477,3 +478,9 @@ int chmod(const char *pathname, mode_t mode)
     syscall(SYSCALL_UNIMPLEMENTED,"chmod",0,0);
     return 0;
 }
+
+void _flushing()
+{
+    fflush(stdout);
+}
+