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-rw-r--r--src/internal/ntapi_log.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/src/internal/ntapi_log.h b/src/internal/ntapi_log.h
new file mode 100644
index 0000000..108bc18
--- /dev/null
+++ b/src/internal/ntapi_log.h
@@ -0,0 +1,66 @@
+/********************************************************/
+/* ntapi: Native API core library */
+/* Copyright (C) 2013--2016 Z. Gilboa */
+/* Released under GPLv2 and GPLv3; see COPYING.NTAPI. */
+/********************************************************/
+
+#include <psxtypes/psxtypes.h>
+#include <ntapi/nt_file.h>
+#include <ntapi/ntapi.h>
+#include "ntapi_impl.h"
+
+static inline int __ntapi_uintptr_to_utf8(uintptr_t value,unsigned char * buf)
+{
+ int i,len;
+ uintptr_t val;
+
+ if (!value) {
+ *buf = '0';
+ len = 1;
+ } else {
+ for (len=0,val=value; val; val=val/10,len++);
+ for (i=len,buf+=len-1; i; i--,buf--,value=value/10)
+ *buf = '0' + (value % 10);
+ }
+
+ return len;
+}
+
+static inline ssize_t __ntapi_log_write(void * msg,uint32_t size)
+{
+ int32_t status;
+ void * hlog;
+ nt_iosb iosb;
+ uintptr_t buffer[8] = {0};
+ char * ch = (char *)buffer;
+
+ if (!(hlog = __ntapi_internals()->rtdata->hlog))
+ return NT_STATUS_INVALID_HANDLE;
+
+ *ch++ = '@';
+ ch += __ntapi_uintptr_to_utf8(
+ pe_get_current_process_id(),
+ ch);
+ *ch++ = ':';
+ ch += __ntapi_uintptr_to_utf8(
+ pe_get_current_thread_id(),
+ ch);
+ *ch++ = '@';
+ *ch++ = ' ';
+
+ __ntapi->zw_write_file(
+ hlog,
+ 0,0,0,&iosb,
+ buffer,
+ (uint32_t)(ch-(char *)buffer),
+ 0,0);
+
+ status = __ntapi->zw_write_file(
+ hlog,
+ 0,0,0,&iosb,
+ msg,
+ (uint32_t)size,
+ 0,0);
+
+ return status ? -1 : iosb.info;
+}