1 files changed, 41 insertions, 0 deletions
diff --git a/lib/libc/include/unistd.h b/lib/libc/include/unistd.h
index 0a8c429..40ebee2 100644
--- a/lib/libc/include/unistd.h
+++ b/lib/libc/include/unistd.h
@@ -30,15 +30,56 @@
 #ifndef _UNISTD_H
 #define _UNISTD_H
 
+#include <sys/exec.h>
 #include <sys/types.h>
 #include <sys/cdefs.h>
 #include <stddef.h>
 
+#define F_OK 0
+
+/* lseek whence, follows Hyra ABI */
+#define SEEK_SET 0
+#define SEEK_CUR 1
+#define SEEK_END 2
+
 __BEGIN_DECLS
 
+int sysconf(int name);
+int setuid(uid_t new);
+
+int gethostname(char *name, size_t size);
+int sethostname(const char *name, size_t size);
+
+uid_t getuid(void);
+char *getlogin(void);
+
+char *getcwd(char *buf, size_t size);
+char *getwd(char *pathname);
+
+int symlink(const char *target, const char *linkpath);
+int synlinkat(const char *target, int newdirfd, const char *linkpath);
+
 ssize_t read(int fd, void *buf, size_t count);
 ssize_t write(int fd, const void *buf, size_t count);
+
 int close(int fd);
+int access(const char *path, int mode);
+
+off_t lseek(int fildes, off_t offset, int whence);
+int unlinkat(int dirfd, const char *pathname, int flags);
+int unlink(const char *path);
+
+int dup(int fd);
+int dup2(int fd, int fd1);
+
+pid_t getpid(void);
+pid_t getppid(void);
+pid_t fork(void);
+
+extern char *optarg;
+extern int optind, opterr, optopt;
+
+int getopt(int argc, char *argv[], const char *optstring);
 
 __END_DECLS