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From 9879affbbdec684adb343b331f47f06788681e3b Mon Sep 17 00:00:00 2001
From: Thomas Klausner <tk@giga.or.at>
Date: Fri, 6 Oct 2017 12:24:22 +0200
Subject: [PATCH] nonrandomopen: override open64() as well.
---
regress/nonrandomopen.c | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/regress/nonrandomopen.c b/regress/nonrandomopen.c
index 4f74222..dd90c14 100644
--- a/regress/nonrandomopen.c
+++ b/regress/nonrandomopen.c
@@ -47,7 +47,8 @@
#endif
static int inited = 0;
-static int (*real_open)(const char *path, int mode, ...) = NULL;
+static int (*real_open)(const char *path, int flags, ...) = NULL;
+static int (*real_open64)(const char *path, int flags, ...) = NULL;
static void
init(void)
@@ -55,6 +56,10 @@ init(void)
real_open = dlsym(RTLD_NEXT, "open");
if (!real_open)
abort();
+ real_open64 = dlsym(RTLD_NEXT, "open64");
+ if (!real_open64) {
+ /* does not have to exist */
+ }
inited = 1;
}
@@ -78,3 +83,28 @@ open(const char *path, int flags, ...)
return real_open(path, flags, mode);
}
}
+
+int
+open64(const char *path, int flags, ...)
+{
+ va_list ap;
+ mode_t mode;
+
+ if (!inited) {
+ init();
+ }
+
+ if (!real_open64) {
+ abort();
+ }
+
+ va_start(ap, flags);
+ mode = va_arg(ap, mode_t);
+ va_end(ap);
+
+ if (strcmp(path, "/dev/urandom") == 0) {
+ return real_open64("/dev/zero", flags, mode);
+ } else {
+ return real_open64(path, flags, mode);
+ }
+}
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