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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 19:05:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 19:05:44 +0000
commitb045529c40c83601909dca7b76a53498e9a70f33 (patch)
tree88371572105933fd950676c07b3a12163a0c9de0 /tests-fuzz/main.c
parentInitial commit. (diff)
downloadknot-b045529c40c83601909dca7b76a53498e9a70f33.tar.xz
knot-b045529c40c83601909dca7b76a53498e9a70f33.zip
Adding upstream version 3.3.4.upstream/3.3.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests-fuzz/main.c')
-rw-r--r--tests-fuzz/main.c140
1 files changed, 140 insertions, 0 deletions
diff --git a/tests-fuzz/main.c b/tests-fuzz/main.c
new file mode 100644
index 0000000..e8eb428
--- /dev/null
+++ b/tests-fuzz/main.c
@@ -0,0 +1,140 @@
+/* Copyright (C) 2018 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+ * Copyright (C) 2017 Tim Ruehsen
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/stat.h>
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
+
+#ifndef __AFL_LOOP
+
+#include <dirent.h>
+
+static void test_all_from(const char *dirname)
+{
+ DIR *dirp = opendir(dirname);
+ if (dirp == NULL) {
+ return;
+ }
+
+ struct dirent *dp;
+ while ((dp = readdir(dirp))) {
+ if (*dp->d_name == '.') {
+ continue;
+ }
+
+ char fname[strlen(dirname) + strlen(dp->d_name) + 2];
+ int ret = snprintf(fname, sizeof(fname), "%s/%s", dirname, dp->d_name);
+ if (ret < 0 || ret >= sizeof(fname)) {
+ fprintf(stderr, "Invalid path %s/%s\n", dirname, dp->d_name);
+ }
+
+ int fd;
+ if ((fd = open(fname, O_RDONLY)) == -1) {
+ fprintf(stderr, "Failed to open %s (%d)\n", fname, errno);
+ continue;
+ }
+
+ struct stat st;
+ if (fstat(fd, &st) != 0) {
+ fprintf(stderr, "Failed to stat %d (%d)\n", fd, errno);
+ close(fd);
+ continue;
+ }
+
+ uint8_t *data = malloc(st.st_size);
+ if (data == NULL) {
+ fprintf(stderr, "Failed to stat %d (%d)\n", fd, ENOMEM);
+ close(fd);
+ continue;
+ }
+
+ ssize_t n;
+ if ((n = read(fd, data, st.st_size)) == st.st_size) {
+ printf("testing %llu bytes from '%s'\n", (unsigned long long) st.st_size, fname);
+ fflush(stdout);
+ LLVMFuzzerTestOneInput(data, st.st_size);
+ fflush(stderr);
+ } else {
+ fprintf(stderr, "Failed to read %llu bytes from %s (%d), got %zd\n",
+ (unsigned long long) st.st_size, fname, errno, n);
+ }
+
+ free(data);
+ close(fd);
+ }
+ closedir(dirp);
+}
+
+int main(int argc, char **argv)
+{
+ const char *target = strrchr(argv[0], '/');
+ target = target ? target + 1 : argv[0];
+
+ char corporadir[sizeof(SRCDIR) + 1 + strlen(target) + 8];
+
+ if (strncmp(target, "lt-", 3) == 0) {
+ target += 3;
+ }
+
+ int ret = snprintf(corporadir, sizeof(corporadir), SRCDIR "/%s.in", target);
+ if (ret < 0 || ret >= sizeof(corporadir)) {
+ fprintf(stderr, "Invalid path %s/%s\n", SRCDIR "/%s.in", target);
+ }
+
+ test_all_from(corporadir);
+
+ ret = snprintf(corporadir, sizeof(corporadir), SRCDIR "/%s.repro", target);
+ if (ret < 0 || ret >= sizeof(corporadir)) {
+ fprintf(stderr, "Invalid path %s/%s\n", SRCDIR "/%s.repro", target);
+ }
+
+ test_all_from(corporadir);
+
+ return 0;
+}
+
+#else
+
+int main(int argc, char **argv)
+{
+ unsigned char buf[64 * 1024];
+
+ while (__AFL_LOOP(10000)) {
+ int ret = fread(buf, 1, sizeof(buf), stdin);
+ if (ret < 0) {
+ return 0;
+ }
+
+ LLVMFuzzerTestOneInput(buf, ret);
+ }
+
+ return 0;
+}
+
+#endif /* __AFL_LOOP */