1 files changed, 24 insertions, 6 deletions
diff --git a/include/sys.h b/include/sys.h
index 15fba2a..e7573bf 100644
--- a/include/sys.h
+++ b/include/sys.h
@@ -19,15 +19,33 @@
 // -----------------------------------------------------------------------
 // functions
 
-/*
- * system calls with errno-free interface
- */
-int sys·call(int num, ...);
+char *sys·errormsg(int num);
 
 /* file operations */
 int sys·open(char *path, int flag, int mode, int *fd);
 int sys·close(int fd);
-int sys·write(int fd, intptr len, void *buf, intptr *nw);
-int sys·read(int fd, intptr len, void *buf, intptr *nr);
+int sys·write(int fd, uintptr len, void *buf, intptr *nw);
+int sys·read(int fd, uintptr len, void *buf, intptr *nr);
 int sys·seek(int fd, intptr offset, int from, intptr *pos);
 int sys·dup(int from, int to);
+
+/* directory operations */
+int sys·chdirfd(int fd);
+int sys·chdir(char *path);
+int sys·direntry(int fd, int len, void *buffer, uintptr *size);
+
+/* process operations */
+int sys·fork(void);
+int sys·exec(char *program, char *argv[], char *env[]);
+
+/* memory operations */
+int sys·brk(void *addr);
+int sys·sbrk(intptr delta, void **ret);
+
+int sys·mmap(void *addr, uintptr len, int prot, int flags, int fd, intptr off, void **ret);
+int sys·mremap(void *old, uintptr from, uintptr to, int flags, void **new);
+int sys·munmap(void *addr, uintptr len);
+int sys·madvise(void *addr, uintptr len, int advice);
+int sys·mprotect(void *addr, uintptr len, int prot);
+int sys·mlock(void *addr, uintptr len);
+int sys·munlock(void *addr, uintptr len);