1 files changed, 14 insertions, 0 deletions
diff --git a/userland/libc/unistd.h b/userland/libc/unistd.h
new file mode 100644
index 0000000..b1e3434
--- /dev/null
+++ b/userland/libc/unistd.h
@@ -0,0 +1,14 @@
+#ifndef UNISTD_H
+#define UNISTD_H
+#include <stddef.h>
+
+extern int opterr, optind, optopt;
+extern char *optarg;
+
+int close(int fildes);
+int ftruncate(int fildes, size_t length);
+int execv(char *path, char **argv);
+int pipe(int fd[2]);
+int dup2(int org_fd, int new_fd);
+int getopt(int argc, char * const argv[], const char *optstring);
+#endif