From ae581a19fbe896a797450b9d9573fb66f2735227 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 16:37:38 +0200
Subject: Adding upstream version 1.9.13p3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 lib/iolog/regress/fuzz/fuzz_iolog_timing.c | 132 +++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 lib/iolog/regress/fuzz/fuzz_iolog_timing.c

(limited to 'lib/iolog/regress/fuzz/fuzz_iolog_timing.c')

diff --git a/lib/iolog/regress/fuzz/fuzz_iolog_timing.c b/lib/iolog/regress/fuzz/fuzz_iolog_timing.c
new file mode 100644
index 0000000..dac9736
--- /dev/null
+++ b/lib/iolog/regress/fuzz/fuzz_iolog_timing.c
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2021 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.
+ */
+
+#include <config.h>
+
+#include <sys/stat.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#if defined(HAVE_STDINT_H)
+# include <stdint.h>
+#elif defined(HAVE_INTTYPES_H)
+# include <inttypes.h>
+#endif
+#ifdef HAVE_STDBOOL_H
+# include <stdbool.h>
+#else
+# include "compat/stdbool.h"
+#endif /* HAVE_STDBOOL_H */
+
+#include "sudo_compat.h"
+#include "sudo_debug.h"
+#include "sudo_eventlog.h"
+#include "sudo_fatal.h"
+#include "sudo_iolog.h"
+#include "sudo_plugin.h"
+#include "sudo_util.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
+
+static int
+fuzz_conversation(int num_msgs, const struct sudo_conv_message msgs[],
+    struct sudo_conv_reply replies[], struct sudo_conv_callback *callback)
+{
+    int n;
+
+    for (n = 0; n < num_msgs; n++) {
+	const struct sudo_conv_message *msg = &msgs[n];
+
+	switch (msg->msg_type & 0xff) {
+	    case SUDO_CONV_PROMPT_ECHO_ON:
+	    case SUDO_CONV_PROMPT_MASK:
+	    case SUDO_CONV_PROMPT_ECHO_OFF:
+		/* input not supported */
+		return -1;
+	    case SUDO_CONV_ERROR_MSG:
+	    case SUDO_CONV_INFO_MSG:
+		/* no output for fuzzers */
+		break;
+	    default:
+		return -1;
+	}
+    }
+    return 0;
+}
+
+int
+LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+    struct iolog_file iolog_file = { true };
+    struct timing_closure closure;
+    char logdir[] = "/tmp/timing.XXXXXX";
+    int dfd = -1, fd = -1;
+
+    initprogname("fuzz_iolog_timing");
+    if (getenv("SUDO_FUZZ_VERBOSE") == NULL)
+	sudo_warn_set_conversation(fuzz_conversation);
+
+    /* I/O logs consist of multiple files in a directory. */
+    if (mkdtemp(logdir) == NULL)
+	return 0;
+
+    /* Create a timing file from the supplied data. */
+    dfd = open(logdir, O_RDONLY);
+    if (dfd == -1)
+	goto cleanup;
+
+    fd = openat(dfd, "timing", O_WRONLY|O_CREAT|O_EXCL, S_IRWXU);
+    if (fd == -1)
+	goto cleanup;
+
+    if (write(fd, data, size) != (ssize_t)size)
+	goto cleanup;
+    close(fd);
+    fd = -1;
+
+    /* Open the timing file we wrote and try to parse it. */
+    if (!iolog_open(&iolog_file, dfd, IOFD_TIMING, "r"))
+	goto cleanup;
+
+    memset(&closure, 0, sizeof(closure));
+    closure.decimal = ".";
+    for (;;) {
+	if (iolog_read_timing_record(&iolog_file, &closure) != 0)
+	    break;
+    }
+    iolog_close(&iolog_file, NULL);
+
+cleanup:
+    if (dfd != -1) {
+	if (fd != -1)
+	    close(fd);
+	unlinkat(dfd, "timing", 0);
+	close(dfd);
+    }
+    rmdir(logdir);
+    fflush(stdout);
+
+    return 0;
+}
+
+/* STUB */
+bool
+iolog_swapids(bool restore)
+{
+    return false;
+}
-- 
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