Version 1.0.0

Initial version.

zh_syslog.c

@@ -0,0 +1,72 @@
+#include "zh_syslog.h"
+
+static zh_syslog_init_config_t _init_config = {0};
+static struct sockaddr_in _syslog_server = {0};
+static int _socket = 0;
+static bool _is_initialized = false;
+
+static const char *TAG = "zh_syslog";
+
+esp_err_t zh_syslog_init(const zh_syslog_init_config_t *config)
+{
+    ESP_LOGI(TAG, "Syslog client initialization begin.");
+    if (config == NULL)
+    {
+        ESP_LOGE(TAG, "Syslog client initialization fail. Invalid argument.");
+        return ESP_ERR_INVALID_ARG;
+    }
+    _init_config = *config;
+    _syslog_server.sin_addr.s_addr = inet_addr(_init_config.syslog_ip);
+    _syslog_server.sin_family = AF_INET;
+    _syslog_server.sin_port = htons(_init_config.syslog_port);
+    _socket = socket(AF_INET, SOCK_DGRAM, 0);
+    if (_socket < 0)
+    {
+        ESP_LOGE(TAG, "Syslog client initialization fail. Create socket error.");
+        return ESP_FAIL;
+    }
+    ESP_LOGI(TAG, "Syslog client initialization success.");
+    _is_initialized = true;
+    return ESP_OK;
+}
+
+esp_err_t zh_syslog_deinit(void)
+{
+    ESP_LOGI(TAG, "Syslog client deinitialization begin.");
+    if (_is_initialized == false)
+    {
+        ESP_LOGE(TAG, "Syslog client deinitialization fail. Syslog client not initialized.");
+        return ESP_ERR_NOT_FOUND;
+    }
+    shutdown(_socket, 0);
+    close(_socket);
+    ESP_LOGI(TAG, "Syslog client deinitialization success.");
+    return ESP_OK;
+}
+
+esp_err_t zh_syslog_send(const zh_syslog_facility_code_t facility, const zh_syslog_severity_code_t severity, const char *hostname, const char *app_name, const char *message)
+{
+    ESP_LOGI(TAG, "Syslog client send begin.");
+    if (hostname == NULL || app_name == NULL || message == NULL)
+    {
+        ESP_LOGE(TAG, "Syslog client send fail. Invalid argument.");
+        return ESP_ERR_INVALID_ARG;
+    }
+    if (_is_initialized == false)
+    {
+        ESP_LOGE(TAG, "Syslog client send fail. Syslog client not initialized.");
+        return ESP_ERR_NOT_FOUND;
+    }
+    char *payload = (char *)heap_caps_malloc(1024, MALLOC_CAP_8BIT);
+    memset(payload, 0, 1024);
+    sprintf(payload, "<%d>1 - %s %s - - - %s", (facility * 8) + severity, hostname, app_name, message);
+    if (sendto(_socket, payload, strlen(payload), 0, (struct sockaddr *)&_syslog_server, sizeof(_syslog_server)) < 0)
+    {
+        ESP_LOGE(TAG, "Syslog client send fail. Socker error.");
+        heap_caps_free(payload);
+        return ESP_FAIL;
+    }
+    heap_caps_free(payload);
+    ESP_LOGI(TAG, "Syslog client send success.");
+    return ESP_OK;
+}