1 files changed, 37 insertions, 0 deletions
diff --git a/include/envctl.h b/include/envctl.h
new file mode 100644
index 0000000..c8ef357
--- /dev/null
+++ b/include/envctl.h
@@ -0,0 +1,37 @@
+#ifndef STASIS_ENVCTL_H
+#define STASIS_ENVCTL_H
+
+#include <stdlib.h>
+
+#define STASIS_ENVCTL_PASSTHRU 0
+#define STASIS_ENVCTL_REQUIRED 1 << 1
+#define STASIS_ENVCTL_REDACT 1 << 2
+#define STASIS_ENVCTL_DEFAULT_ALLOC 100
+
+#define STASIS_ENVCTL_RET_FAIL (-1)
+#define STASIS_ENVCTL_RET_SUCCESS 1
+#define STASIS_ENVCTL_RET_IGNORE 2
+typedef int (envctl_except_fn)(const void *, const void *);
+
+struct EnvCtl_Item {
+    unsigned flags; //<! One or more STASIS_ENVCTL_* flags
+    const char *name; //<! Environment variable name
+    envctl_except_fn *callback;
+};
+
+struct EnvCtl {
+    size_t num_alloc;
+    size_t num_used;
+    struct EnvCtl_Item **item;
+};
+
+struct EnvCtl *envctl_init();
+int envctl_register(struct EnvCtl **envctl, unsigned flags, envctl_except_fn *callback, const char *name);
+unsigned envctl_get_flags(const struct EnvCtl *envctl, const char *name);
+unsigned envctl_check_required(unsigned flags);
+unsigned envctl_check_redact(unsigned flags);
+int envctl_check_present(const struct EnvCtl_Item *item, const char *name);
+void envctl_do_required(const struct EnvCtl *envctl, int verbose);
+void envctl_free(struct EnvCtl **envctl);
+
+#endif // STASIS_ENVCTL_H
+\ No newline at end of file