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-rw-r--r--third_party/heimdal/lib/roken/parse_reply-test.c126
1 files changed, 126 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/roken/parse_reply-test.c b/third_party/heimdal/lib/roken/parse_reply-test.c
new file mode 100644
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+++ b/third_party/heimdal/lib/roken/parse_reply-test.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2002 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#endif
+#include <fcntl.h>
+
+#include "roken.h"
+#include "resolve.h"
+
+struct dns_reply*
+parse_reply(const unsigned char *, size_t);
+
+enum { MAX_BUF = 36};
+
+static struct testcase {
+ unsigned char buf[MAX_BUF];
+ size_t buf_len;
+} tests[] = {
+ {{0x12, 0x67, 0x84, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
+ 0x03, 'f', 'o', 'o', 0x00,
+ 0x00, 0x10, 0x00, 0x01,
+ 0x03, 'f', 'o', 'o', 0x00,
+ 0x00, 0x10, 0x00, 0x01,
+ 0x00, 0x00, 0x12, 0x67, 0xff, 0xff}, 36}
+};
+
+#ifndef MAP_FAILED
+#define MAP_FAILED (-1)
+#endif
+
+static sig_atomic_t val = 0;
+
+static RETSIGTYPE
+segv_handler(int sig)
+{
+ val = 1;
+}
+
+int
+main(int argc, char **argv)
+{
+#ifndef HAVE_MMAP
+ return 77; /* signal to automake that this test
+ cannot be run */
+#else /* HAVE_MMAP */
+ int ret;
+ int i;
+ struct sigaction sa;
+
+ sigemptyset (&sa.sa_mask);
+ sa.sa_flags = 0;
+ sa.sa_handler = segv_handler;
+ sigaction (SIGSEGV, &sa, NULL);
+
+ for (i = 0; val == 0 && i < sizeof(tests)/sizeof(tests[0]); ++i) {
+ const struct testcase *t = &tests[i];
+ unsigned char *p1, *p2;
+ int flags;
+ int fd;
+ size_t pagesize = getpagesize();
+ unsigned char *buf;
+
+#ifdef MAP_ANON
+ flags = MAP_ANON;
+ fd = -1;
+#else
+ flags = 0;
+ fd = open ("/dev/zero", O_RDONLY);
+ if(fd < 0)
+ err (1, "open /dev/zero");
+#endif
+ flags |= MAP_PRIVATE;
+
+ p1 = (unsigned char *)mmap(0, 2 * pagesize, PROT_READ | PROT_WRITE,
+ flags, fd, 0);
+ if (p1 == (unsigned char *)MAP_FAILED)
+ err (1, "mmap");
+ p2 = p1 + pagesize;
+ ret = mprotect ((void *)p2, pagesize, 0);
+ if (ret < 0)
+ err (1, "mprotect");
+ buf = p2 - t->buf_len;
+ memcpy (buf, t->buf, t->buf_len);
+ parse_reply (buf, t->buf_len);
+ ret = munmap ((void *)p1, 2 * pagesize);
+ if (ret < 0)
+ err (1, "munmap");
+ }
+ return val;
+#endif /* HAVE_MMAP */
+}