Merge tag 'debian/1.8.5p2-1' into squeeze

[debian/sudo] / compat / dlfcn.h

diff --git a/compat/dlfcn.h b/compat/dlfcn.h
new file mode 100644 (file)
index 0000000..922c755
--- /dev/null
+++ b/compat/dlfcn.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2010 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * 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 _DLFCN_H_
+#define _DLFCN_H_
+
+/* Emulated functions. */
+void *sudo_dlopen(const char *path, int mode);
+int sudo_dlclose(void *handle);
+void *sudo_dlsym(void *handle, const char *symbol);
+char *sudo_dlerror(void);
+
+/* Map emulated functions to standard names. */
+#define dlopen(p, m)   sudo_dlopen(p, m)
+#define dlclose(h)     sudo_dlclose(h)
+#define dlsym(h, s)    sudo_dlsym(h, s)
+#define dlerror()      sudo_dlerror()
+
+/* Values for dlopen() mode. */
+#define RTLD_LAZY      0x1
+#define RTLD_NOW       0x2
+#define RTLD_GLOBAL    0x4
+#define RTLD_LOCAL     0x8
+
+/* Special handle arguments for dlsym(). */
+#define        RTLD_NEXT       ((void *) -1)   /* Search subsequent objects. */
+#define        RTLD_DEFAULT    ((void *) -2)   /* Use default search algorithm. */
+#define        RTLD_SELF       ((void *) -3)   /* Search the caller itself. */
+
+#endif /* !_DLFCN_H_ */