Upgrade libutils to C++

native/jni/utils/logging.cpp

@@ -0,0 +1,93 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <android/log.h>
+
+#include "logging.h"
+#include "flags.h"
+
+int nop_log(const char *fmt, va_list ap) {
+	return 0;
+}
+
+void nop_ex(int i) {}
+
+struct log_callback log_cb = {
+	.d = nop_log,
+	.i = nop_log,
+	.w = nop_log,
+	.e = nop_log,
+	.ex = nop_ex
+};
+
+void no_logging() {
+	log_cb.d = nop_log;
+	log_cb.i = nop_log;
+	log_cb.w = nop_log;
+	log_cb.e = nop_log;
+	log_cb.ex = nop_ex;
+}
+
+#define LOG_TAG "Magisk"
+
+static int log_d(const char *fmt, va_list ap) {
+	return __android_log_vprint(ANDROID_LOG_DEBUG, LOG_TAG, fmt, ap);
+}
+
+static int log_i(const char *fmt, va_list ap) {
+	return __android_log_vprint(ANDROID_LOG_INFO, LOG_TAG, fmt, ap);
+}
+
+static int log_w(const char *fmt, va_list ap) {
+	return __android_log_vprint(ANDROID_LOG_WARN, LOG_TAG, fmt, ap);
+}
+
+static int log_e(const char *fmt, va_list ap) {
+	return __android_log_vprint(ANDROID_LOG_ERROR, LOG_TAG, fmt, ap);
+}
+
+void android_logging() {
+#ifdef MAGISK_DEBUG
+	log_cb.d = log_d;
+#else
+	log_cb.d = nop_log;
+#endif
+	log_cb.i = log_i;
+	log_cb.w = log_w;
+	log_cb.e = log_e;
+	log_cb.ex = nop_ex;
+}
+
+static int vprinte(const char *fmt, va_list ap) {
+	return vfprintf(stderr, fmt, ap);
+}
+
+void cmdline_logging() {
+	log_cb.d = vprinte;
+	log_cb.i = vprintf;
+	log_cb.w = vprinte;
+	log_cb.e = vprinte;
+	log_cb.ex = exit;
+}
+
+int log_handler(log_type t, const char *fmt, ...) {
+	va_list argv;
+	int ret = 0;
+	va_start(argv, fmt);
+	switch (t) {
+		case L_DEBUG:
+			ret = log_cb.d(fmt, argv);
+			break;
+		case L_INFO:
+			ret = log_cb.i(fmt, argv);
+			break;
+		case L_WARN:
+			ret = log_cb.w(fmt, argv);
+			break;
+		case L_ERR:
+			ret = log_cb.e(fmt, argv);
+			log_cb.ex(1);
+			break;
+	}
+	va_end(argv);
+	return ret;
+}