Revert "vl: Fix to create migration object before block backends again"

[mirror_qemu.git] / tests / tpm-util.c

diff --git a/tests/tpm-util.c b/tests/tpm-util.c
index 9f3f156e42a336de24b5d7f50835c49d5d263ee1..e08b13765148f3c44e8a97564a0396424a19700e 100644 (file)
--- a/tests/tpm-util.c
+++ b/tests/tpm-util.c
@@ -145,39 +145,33 @@ void tpm_util_pcrread(QTestState *s, tx_func *tx,
     g_assert_cmpmem(buffer, exp_resp_size, exp_resp, exp_resp_size);
 }
 
-static gboolean tpm_util_swtpm_has_tpm2(void)
+bool tpm_util_swtpm_has_tpm2(void)
 {
-    gint mystdout;
-    gboolean succ;
-    unsigned i;
-    char buffer[10240];
-    ssize_t n;
-    gchar *swtpm_argv[] = {
-        g_strdup("swtpm"), g_strdup("socket"), g_strdup("--help"), NULL
+    bool has_tpm2 = false;
+    char *out = NULL;
+    static const char *argv[] = {
+        "swtpm", "socket", "--help", NULL
     };
 
-    succ = g_spawn_async_with_pipes(NULL, swtpm_argv, NULL,
-                                    G_SPAWN_SEARCH_PATH, NULL, NULL, NULL,
-                                    NULL, &mystdout, NULL, NULL);
-    if (!succ) {
-        goto cleanup;
-    }
-
-    n = read(mystdout, buffer, sizeof(buffer) - 1);
-    if (n < 0) {
-        goto cleanup;
-    }
-    buffer[n] = 0;
-    if (!strstr(buffer, "--tpm2")) {
-        succ = false;
+    if (!g_spawn_sync(NULL /* working_dir */,
+                      (char **)argv,
+                      NULL /* envp */,
+                      G_SPAWN_SEARCH_PATH,
+                      NULL /* child_setup */,
+                      NULL /* user_data */,
+                      &out,
+                      NULL /* err */,
+                      NULL /* exit_status */,
+                      NULL)) {
+        return false;
     }
 
- cleanup:
-    for (i = 0; swtpm_argv[i]; i++) {
-        g_free(swtpm_argv[i]);
+    if (strstr(out, "--tpm2")) {
+        has_tpm2 = true;
     }
 
-    return succ;
+    g_free(out);
+    return has_tpm2;
 }
 
 gboolean tpm_util_swtpm_start(const char *path, GPid *pid,
@@ -196,11 +190,6 @@ gboolean tpm_util_swtpm_start(const char *path, GPid *pid,
     gboolean succ;
     unsigned i;
 
-    succ = tpm_util_swtpm_has_tpm2();
-    if (!succ) {
-        goto cleanup;
-    }
-
     *addr = g_new0(SocketAddress, 1);
     (*addr)->type = SOCKET_ADDRESS_TYPE_UNIX;
     (*addr)->u.q_unix.path = g_build_filename(path, "sock", NULL);
@@ -208,7 +197,6 @@ gboolean tpm_util_swtpm_start(const char *path, GPid *pid,
     succ = g_spawn_async(NULL, swtpm_argv, NULL, G_SPAWN_SEARCH_PATH,
                          NULL, NULL, pid, error);
 
-cleanup:
     for (i = 0; swtpm_argv[i]; i++) {
         g_free(swtpm_argv[i]);
     }