!286 添加查询设备是否支持指定的SystemCapability。

Merge pull request !286 from chenyude/commit-syscap

bundle.json

@@ -57,7 +57,8 @@
                             "fs_manager/fs_manager.h",
                             "init_reboot.h",
                             "service_control.h",
-                            "beget_ext.h"
+                            "beget_ext.h",
+                            "systemcapability.h"
                         ]
                     },
                     "name": "//base/startup/init_lite/interfaces/innerkits:libbegetutil"

interfaces/innerkits/BUILD.gn

@@ -31,6 +31,7 @@ ohos_shared_library("libbegetutil") {
     "reboot/init_reboot_innerkits.c",
     "service_control/service_control.c",
     "socket/init_socket.c",
+    "syscap/init_syscap.c",
   ]
   sources += fs_manager_sources
 

interfaces/innerkits/include/systemcapability.h

+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef INIT_SYSCAP_API_H
+#define INIT_SYSCAP_API_H
+
+#include <stdbool.h>
+
+#ifdef __cplusplus
+#if __cplusplus
+extern "C" {
+#endif
+#endif
+
+
+bool HasSystemCapability(const char *cap);
+
+#ifdef __cplusplus
+#if __cplusplus
+}
+#endif
+#endif
+#endif
\ No newline at end of file

interfaces/innerkits/syscap/init_syscap.c

+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+#include "sys_param.h"
+#include "beget_ext.h"
+#include "securec.h"
+#include "systemcapability.h"
+
+#define SYSCAP_MAX_SIZE 100
+#define SYSCAP_PREFIX_NAME "SystemCapability"
+
+bool HasSystemCapability(const char *cap)
+{
+    char capName[SYSCAP_MAX_SIZE] = { 0 };
+    char paramValue[PARAM_VALUE_LEN_MAX] = { 0 };
+    unsigned int valueLen = PARAM_VALUE_LEN_MAX;
+
+    if (strncmp(SYSCAP_PREFIX_NAME, cap, sizeof(SYSCAP_PREFIX_NAME) - 1) != 0) {
+        if (strncpy_s(capName, sizeof(capName), cap, sizeof(capName) - 1) < 0) {
+            BEGET_LOGE("Failed strncpy_s err=%d", errno);
+            return false;
+        }
+    } else if (snprintf_s(capName, SYSCAP_MAX_SIZE, SYSCAP_MAX_SIZE - 1, SYSCAP_PREFIX_NAME".%s", cap) == -1) {
+        BEGET_LOGE("Failed snprintf_s err=%d", errno);
+        return false;
+    }
+
+    if (SystemGetParameter(capName, paramValue, &valueLen) != 0) {
+        BEGET_LOGE("Failed get paramName.");
+        return false;
+    }
+    
+    return true;
+}
\ No newline at end of file