1 files changed, 83 insertions, 0 deletions
diff --git a/libghack/src/log.c b/libghack/src/log.c
new file mode 100755
index 0000000..de83688
--- /dev/null
+++ b/libghack/src/log.c
@@ -0,0 +1,83 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <time.h>
+
+#include "log.h"
+
+FILE *log_file = NULL;
+static time_t log_initTime;
+
+
+extern BOOL log_init(char *p_fname)
+{
+    char fpath[BUFSIZ];
+
+    memset(&fpath[0], '\0', BUFSIZ);
+    snprintf(fpath, BUFSIZ, "%s.log", p_fname);
+    log_initTime = time(NULL);
+    return ( (log_file = fopen(fpath, "a+")) != NULL );
+}
+
+extern void log_to(const char *file, SIZE_T line, const char *msg, ...)
+{
+    time_t now;
+    double diffTime;
+    char buf[BUFSIZ+1];
+    char out[BUFSIZ+1];
+    va_list va;
+    va_start(va, msg);
+
+    memset(&buf[0], '\0', (BUFSIZ+1)*sizeof(char));
+    memset(&out[0], '\0', (BUFSIZ+1)*sizeof(char));
+    vsnprintf(buf, BUFSIZ, msg, va);
+    now = time(NULL);
+    diffTime = difftime(now, log_initTime);
+    snprintf(out, BUFSIZ, "%8.0f [%s:%lu]: %s\n", diffTime, file, line, buf);
+    if (log_file != NULL)
+    {
+        fprintf(log_file, "%s", out);
+    }
+    else
+    {
+        printf("%s", out);
+    }
+}
+
+#ifdef UNICODE
+extern void logw_to(const char *file, SIZE_T line, char *msg, ...)
+{
+    if (!log_file) return;
+    time_t now;
+    double diffTime;
+    wchar_t buf[BUFSIZ+1];
+    wchar_t out[BUFSIZ+1];
+    va_list va;
+    va_start(va, msg);
+
+    memset(&buf[0], '\0', (BUFSIZ+1)*sizeof(char));
+    memset(&out[0], '\0', (BUFSIZ+1)*sizeof(char));
+    vsnwprintf(buf, BUFSIZ, msg, va);
+    now = time(NULL);
+    diffTime = difftime(now, log_initTime);
+    snwprintf(out, BUFSIZ, L"%8.0f [%s:%lu]: %s\n", diffTime, file, line, buf);
+    fwprintf(log_file, L"%s", out);
+}
+#endif
+
+extern void log_flush(void)
+{
+    if (log_file)
+    {
+        fflush(log_file);
+    }
+}
+
+extern void log_close(void)
+{
+    if (!log_file) return;
+    log_to(__FILE__, __LINE__, "%s", "closing log file");
+    log_flush();
+    fclose(log_file);
+    log_file = NULL;
+}