From d88d199f23088ac1c3d7696374b0a1c1c1c18358 Mon Sep 17 00:00:00 2001
From: Cameron Katri <me@cameronkatri.com>
Date: Mon, 10 May 2021 14:55:20 -0400
Subject: libpcap-98.40.1

---
 lib/libpcap/libpcap/tests/offlinereadtest.c | 95 +++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 lib/libpcap/libpcap/tests/offlinereadtest.c

(limited to 'lib/libpcap/libpcap/tests/offlinereadtest.c')

diff --git a/lib/libpcap/libpcap/tests/offlinereadtest.c b/lib/libpcap/libpcap/tests/offlinereadtest.c
new file mode 100644
index 0000000..f5f23fe
--- /dev/null
+++ b/lib/libpcap/libpcap/tests/offlinereadtest.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2017-2018 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+
+#include <pcap.h>
+#include <stdio.h>
+#include <err.h>
+#include <stdlib.h>
+#include <string.h>
+#include <libgen.h>
+
+
+#define PAD32(x) (((x) + 3) & ~3)
+#define	SWAPLONG(y) \
+((((y)&0xff)<<24) | (((y)&0xff00)<<8) | (((y)&0xff0000)>>8) | (((y)>>24)&0xff))
+#define	SWAPSHORT(y) \
+( (((y)&0xff)<<8) | ((u_short)((y)&0xff00)>>8) )
+#define	SWAPLONGLONG(y) \
+(SWAPLONG((unsigned long)(y)) << 32 | SWAPLONG((unsigned long)((y) >> 32)))
+
+void hex_and_ascii_print(const char *, const void *, size_t, const char *);
+
+void
+read_callback(u_char *user, const struct pcap_pkthdr *hdr, const u_char *bytes)
+{
+	fprintf(stderr, "pcap_pkthdr ts %ld.%06d caplen %u len %u\n",
+			hdr->ts.tv_sec,
+			hdr->ts.tv_usec,
+			hdr->caplen,
+			hdr->len);
+
+	hex_and_ascii_print("", bytes, hdr->caplen, "\n");
+}
+
+int
+main(int argc, const char * argv[])
+{
+	int i;
+	char errbuf[PCAP_ERRBUF_SIZE];
+
+	for (i = 1; i < argc; i++) {
+		pcap_t *pcap;
+
+		if (strcmp(argv[i], "-h") == 0) {
+			char *path = strdup((argv[0]));
+			printf("# usage: %s  file...\n", getprogname());
+			if (path != NULL)
+				free(path);
+			exit(0);
+		}
+
+		printf("#\n# opening %s\n#\n", argv[i]);
+
+		pcap = pcap_open_offline(argv[i], errbuf);
+		if (pcap == NULL) {
+			warnx("pcap_open_offline(%s) failed: %s\n",
+				  argv[i], errbuf);
+			continue;
+		}
+		int result = pcap_loop(pcap, -1, read_callback, (u_char *)pcap);
+		if (result < 0) {
+			warnx("pcap_dispatch failed: %s\n",
+				  pcap_statustostr(result));
+		} else {
+			printf("# read %d packets\n", result);
+		}
+		pcap_close(pcap);
+	}
+	return 0;
+}
-- 
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