1 files changed, 21 insertions, 0 deletions
diff --git a/kernel/syscalls.h b/kernel/syscalls.h
index 6569aa6..63aafc4 100644
--- a/kernel/syscalls.h
+++ b/kernel/syscalls.h
@@ -1,6 +1,27 @@
 #include "fs/fs.h"
 
+#define SYSCALL_WRITE 61
+#define SYSCALL_READ 62
+#define SYSCALL_READDIR 63
+#define SYSCALL_EXECVE 64
+#define SYSCALL_OPEN 65
+#define SYSCALL_CLOSE 66
+#define SYSCALL_FSTAT 67
+#define SYSCALL_ISATTY 68
+#define SYSCALL_LSEEK 69
+#define SYSCALL_SBRK 70
+
+
+int syscall_open(char *name, int flags, int len);
 int syscall_write(int file, char *buf, int len);
 int syscall_read(int file, char *buf, int len);
 int syscall_readdir(const char *name,fs_dirent *dirs,int max);
 int syscall_execve(char *name, char **argv, char **env);
+
+int syscall_close(int file,int none1,int none2);
+int syscall_fstat(int file, struct stat *st,int none);
+int syscall_isatty(int file,int none1,int none2);  
+int syscall_lseek(int file,int ptr,int dir); 
+int syscall_sbrk(int incr, int none1, int none2);
+
+// missing: _exit, environ, fork, getpid, kill, link, stat, times, unlink, wait;