Plugin Management support C plugin

src/plugin_manager/plugin_manager_util.cpp

@@ -0,0 +1,40 @@
+#include <string.h>
+#include <stdlib.h>
+
+#include "plugin_manager_util.h"
+
+char *safe_dup(const char *str)
+{
+	if (str == NULL)
+	{
+		return NULL;
+	}
+
+	char *dup = safe_alloc(char, strlen(str) + 1);
+	memcpy(dup, str, strlen(str));
+
+	return dup;
+}
+
+void strcat_prefix_and_file(const char *prefix, const char *file, char *buff, int size)
+{
+	char prefix_buffer[4096] = {0};
+	char file_buffer[4096] = {0};
+	char *ptr = NULL;
+
+	memcpy(prefix_buffer, prefix, strlen(prefix));
+	memcpy(file_buffer, file, strlen(file));
+
+	if (prefix_buffer[strlen(prefix_buffer) - 1] != '/')
+	{
+		prefix_buffer[strlen(prefix_buffer)] = '/';
+	}
+	file_buffer[strcspn(file_buffer, "\r\n")] = 0;
+
+	ptr = file_buffer;
+	if (file_buffer[0] == '.' && file_buffer[1] == '/')
+	{
+		ptr += 2;
+	}
+	snprintf(buff, size, "%s%s", prefix_buffer, ptr);
+}