Merging upstream version 1.1~rc0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

test/utils.c

@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
+/*
+ * This file is part of libnvme.
+ *
+ * Common test utilities.
+ *
+ * Copyright (c) 2022 Code Construct
+ */
+
+#include <err.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "utils.h"
+
+FILE *test_setup_log(void)
+{
+	FILE *fd;
+
+	fd = tmpfile();
+	if (!fd)
+		err(EXIT_FAILURE, "can't create temporary file for log buf");
+
+	return fd;
+}
+
+void test_close_log(FILE *fd)
+{
+	fclose(fd);
+}
+
+void test_print_log_buf(FILE *logfd)
+{
+	char buf[4096];
+	int rc;
+
+	if (!ftell(logfd))
+		return;
+
+	rewind(logfd);
+
+	printf("--- begin test output\n");
+
+	while (!feof(logfd) && !ferror(logfd)) {
+		size_t rlen, wlen, wpos;
+
+		rlen = fread(buf, 1, sizeof(buf), logfd);
+		if (rlen <= 0)
+			break;
+
+		for (wpos = 0; wpos < rlen;) {
+			wlen = fwrite(buf + wpos, 1, rlen - wpos, stdout);
+			if (wlen == 0)
+				break;
+			wpos += wlen;
+		}
+
+		if (feof(logfd) || ferror((logfd)))
+			break;
+	}
+
+	printf("--- end test output\n");
+	rewind(logfd);
+	rc = ftruncate(fileno(logfd), 0);
+	if (rc)
+		printf("failed to truncate log buf; further output may be invalid\n");
+}
+