1 files changed, 64 insertions, 0 deletions
diff --git a/src/libc/include/unistd.h b/src/libc/include/unistd.h
new file mode 100644
index 0000000..005e79c
--- /dev/null
+++ b/src/libc/include/unistd.h
@@ -0,0 +1,64 @@
+#pragma once
+#include <camellia/types.h> // TODO only needed because of hid_t
+#include <sys/types.h>
+#include <getopt.h>
+
+// TODO custom stdint.h, ssize_t doesn't belong here
+typedef long long ssize_t;
+
+extern char **environ;
+
+int fork(void);
+pid_t vfork(void);
+int close(hid_t h);
+_Noreturn void _exit(int);
+
+ssize_t readlink(const char *restrict path, char *restrict buf, size_t bufsize);
+int link(const char *path1, const char *path2);
+int unlink(const char *path);
+int symlink(const char *path1, const char *path2);
+int isatty(int fd);
+
+int execv(const char *path, char *const argv[]);
+int execve(const char *path, char *const argv[], char *const envp[]);
+
+int chdir(const char *path);
+char *getcwd(char *buf, size_t size);
+
+uid_t getuid(void);
+uid_t geteuid(void);
+gid_t getgid(void);
+gid_t getegid(void);
+
+int chown(const char *path, uid_t owner, gid_t group);
+
+int setpgid(pid_t pid, pid_t pgid);
+pid_t tcgetpgrp(int fd);
+int tcsetpgrp(int fd, pid_t pgrp);
+pid_t getpgrp(void);
+pid_t getpid(void);
+pid_t getppid(void);
+
+int getgroups(int size, gid_t list[]);
+
+ssize_t read(int fd, void *buf, size_t count);
+ssize_t write(int fd, const void *buf, size_t count);
+int pipe(int pipefd[2]);
+int dup2(int oldfd, int newfd);
+
+/* Converts a relative path to an absolute one, simplifying it if possible.
+ * If in == NULL - return the length of cwd. Doesn't include the trailing slash,
+ *                 except for the root dir. Includes the null byte.
+ * If size isn't enough to fit the path, returns the amount of bytes needed to fit
+ * it, including the null byte.
+ *
+ * Note that some errors are only detected if *out != NULL, so you must check the return
+ * value twice.
+ * @return 0 on failure, length of the path otherwise */
+size_t absolutepath(char *out, const char *in, size_t size);
+
+// TODO put in an internal libc header
+void __setinitialcwd(const char *c);
+
+void intr_set(void (*fn)(void));
+void intr_default(void);