From be956cd27353a4bb585b1a648e8469cf7adb5edf Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 14 Jan 2022 16:03:48 +0100
Subject: Adding upstream version 0.2.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/test/writer_unixsock.c | 134 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 src/test/writer_unixsock.c

(limited to 'src/test/writer_unixsock.c')

diff --git a/src/test/writer_unixsock.c b/src/test/writer_unixsock.c
new file mode 100644
index 0000000..3290c9b
--- /dev/null
+++ b/src/test/writer_unixsock.c
@@ -0,0 +1,134 @@
+#include <dnswire/writer.h>
+#include <dnswire/reader.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <sys/wait.h>
+
+#include "create_dnstap.c"
+
+int main(int argc, const char* argv[])
+{
+    if (argc < 2) {
+        return 1;
+    }
+
+    struct sockaddr_un path;
+    memset(&path, 0, sizeof(struct sockaddr_un));
+    path.sun_family = AF_UNIX;
+    strncpy(path.sun_path, argv[1], sizeof(path.sun_path) - 1);
+
+    int fd = socket(AF_UNIX, SOCK_STREAM, 0);
+    if (fd == -1) {
+        return 1;
+    }
+
+    int ret = 1, attempts = 5;
+    while (attempts--) {
+        if (!(ret = connect(fd, (struct sockaddr*)&path, sizeof(struct sockaddr_un)))) {
+            break;
+        } else {
+            fprintf(stderr, "sleep\n");
+            sleep(1);
+        }
+    }
+    if (ret) {
+        close(fd);
+        return ret;
+    }
+
+    struct dnswire_writer writer;
+    if (dnswire_writer_init(&writer) != dnswire_ok) {
+        return 1;
+    }
+    if (dnswire_writer_set_bidirectional(&writer, true) != dnswire_ok) {
+        return 1;
+    }
+
+    // force small buffers to trigger buf resizing
+    writer.read_size = 4;
+    writer.read_inc  = 4;
+    if (dnswire_writer_set_bufsize(&writer, 4) != dnswire_ok) {
+        return 1;
+    }
+    if (dnswire_writer_set_bufinc(&writer, 4) != dnswire_ok) {
+        return 1;
+    }
+
+    struct dnstap d = DNSTAP_INITIALIZER;
+    create_dnstap(&d, "writer_reader_unixsock-1");
+
+    dnswire_writer_set_dnstap(writer, &d);
+
+    while (1) {
+        enum dnswire_result res = dnswire_writer_write(&writer, fd);
+        switch (res) {
+        case dnswire_ok:
+            break;
+
+        case dnswire_again:
+        case dnswire_need_more:
+            continue;
+
+        default:
+            fprintf(stderr, "dnswire_writer_write() error\n");
+            return 1;
+        }
+        break;
+    }
+
+    create_dnstap(&d, "writer_reader_unixsock-2");
+
+    while (1) {
+        enum dnswire_result res = dnswire_writer_write(&writer, fd);
+        switch (res) {
+        case dnswire_ok:
+            break;
+
+        case dnswire_again:
+        case dnswire_need_more:
+            continue;
+
+        default:
+            fprintf(stderr, "dnswire_writer_write() error\n");
+            return 1;
+        }
+        break;
+    }
+
+    if (dnswire_writer_stop(&writer) != dnswire_ok) {
+        fprintf(stderr, "dnswire_writer_stop() failed\n");
+        return 1;
+    }
+
+    while (1) {
+        enum dnswire_result res = dnswire_writer_write(&writer, fd);
+        switch (res) {
+        case dnswire_ok:
+        case dnswire_endofdata:
+            break;
+
+        case dnswire_again:
+        case dnswire_need_more:
+            continue;
+
+        default:
+            fprintf(stderr, "dnswire_writer_write() error\n");
+            return 1;
+        }
+        break;
+    }
+
+    dnswire_writer_destroy(writer);
+
+    shutdown(fd, SHUT_RDWR);
+    close(fd);
+
+    return ret;
+}
-- 
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