From cfebe5825512d187ce2d4ff98ee74e8da8eb901e Mon Sep 17 00:00:00 2001
From: Lucas Fryzek <lucas.fryzek@fryzekconcepts.com>
Date: Sun, 7 Jul 2024 20:12:12 +0100
Subject: Initial commit

---
 drvemu.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 drvemu.c

(limited to 'drvemu.c')

diff --git a/drvemu.c b/drvemu.c
new file mode 100644
index 0000000..d16c44f
--- /dev/null
+++ b/drvemu.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <dlfcn.h>
+
+#define PROLOG(func) \
+    static typeof(func) *orig_##func = NULL; \
+    if(!orig_##func) \
+        orig_##func = dlsym(RTLD_NEXT, #func);
+
+int open64(const char *pathname, int flags, ...) {
+    printf("Called open64 on %s (%d)\n", pathname, flags);
+    PROLOG(open64);
+    int fd = orig_open64(pathname, flags);
+    //check_fd(fd, pathname);
+    return fd;
+}
+
+int openat(int dirfd, const char *pathname, int flags, ...) {
+    assert(false && "openat not implemented");
+    printf("Called openat on %s (%d) (%d)\n", pathname, dirfd, flags);
+    PROLOG(openat);
+    return orig_openat(dirfd, pathname, flags);
+}
-- 
cgit