3 files changed, 9 insertions, 3 deletions
diff --git a/src/user/lib/include/ctype.h b/src/user/lib/include/ctype.h
new file mode 100644
index 0000000..4b15b1d
--- /dev/null
+++ b/src/user/lib/include/ctype.h
@@ -0,0 +1,8 @@
+#pragma once
+
+int isalnum(int c);
+int isalpha(int c);
+int isdigit(int c);
+int islower(int c);
+int isspace(int c);
+int isupper(int c);
diff --git a/src/user/lib/include/string.h b/src/user/lib/include/string.h
index 9e08ae5..eda4e48 100644
--- a/src/user/lib/include/string.h
+++ b/src/user/lib/include/string.h
@@ -1,8 +1,5 @@
 #pragma once
 #include <shared/mem.h>
 
-int isspace(char c);
-
 long strtol(const char *restrict s, char **restrict end, int base);
-
 char *strchr(const char *s, int c);
diff --git a/src/user/lib/include/unistd.h b/src/user/lib/include/unistd.h
index 2b75a13..9b368dc 100644
--- a/src/user/lib/include/unistd.h
+++ b/src/user/lib/include/unistd.h
@@ -1,5 +1,6 @@
 #pragma once
 #include <camellia/types.h> // TODO only needed because of handle_t
+#include <user/lib/vendor/getopt/getopt.h>
 
 int fork(void);
 int close(handle_t h);