1 files changed, 57 insertions, 0 deletions
diff --git a/include/sudo_dso.h b/include/sudo_dso.h
new file mode 100644
index 0000000..c2e1aaf
--- /dev/null
+++ b/include/sudo_dso.h
@@ -0,0 +1,57 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2010, 2013, 2014 Todd C. Miller <Todd.Miller@sudo.ws>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef SUDO_DSO_H
+#define SUDO_DSO_H
+
+/* Values for sudo_dso_load() mode. */
+#define SUDO_DSO_LAZY	 0x1
+#define SUDO_DSO_NOW	 0x2
+#define SUDO_DSO_GLOBAL	 0x4
+#define SUDO_DSO_LOCAL	 0x8
+
+/* Special handle arguments for sudo_dso_findsym(). */
+#define SUDO_DSO_NEXT	 ((void *)-1)	/* Search subsequent objects. */
+#define SUDO_DSO_DEFAULT ((void *)-2)	/* Use default search algorithm. */
+#define SUDO_DSO_SELF	 ((void *)-3)	/* Search the caller itself. */
+
+/* Internal structs for static linking of plugins. */
+struct sudo_preload_symbol {
+    const char *name;
+    void *addr;
+};
+struct sudo_preload_table {
+    const char *path;
+    void *handle;
+    struct sudo_preload_symbol *symbols;
+};
+
+/* Public functions. */
+sudo_dso_public char *sudo_dso_strerror_v1(void);
+sudo_dso_public int sudo_dso_unload_v1(void *handle);
+sudo_dso_public void *sudo_dso_findsym_v1(void *handle, const char *symbol);
+sudo_dso_public void *sudo_dso_load_v1(const char *path, int mode);
+sudo_dso_public void sudo_dso_preload_table_v1(struct sudo_preload_table *table);
+
+#define sudo_dso_strerror() sudo_dso_strerror_v1()
+#define sudo_dso_unload(_a) sudo_dso_unload_v1((_a))
+#define sudo_dso_findsym(_a, _b) sudo_dso_findsym_v1((_a), (_b))
+#define sudo_dso_load(_a, _b) sudo_dso_load_v1((_a), (_b))
+#define sudo_dso_preload_table(_a) sudo_dso_preload_table_v1((_a))
+
+#endif /* SUDO_DSO_H */