[Refactoring] Introduced common/os/ directory for platform dependent
implementations and move vsnprintf() declaration there.
[Refactoring] Introduced common/common-config.win.h for handling WIN32
platform specifics.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@3167 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/os/print.c b/common/os/print.c
new file mode 100644
index 0000000..a38ea2f
--- /dev/null
+++ b/common/os/print.c
@@ -0,0 +1,58 @@
+/* Copyright (C) 2008 TightVNC Team. All Rights Reserved.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * USA.
+ */
+
+#ifdef HAVE_COMMON_CONFIG_H
+#include <common-config.h>
+#endif
+
+#include <os/print.h>
+#include <stdarg.h>
+
+#ifndef HAVE_VSNPRINTF
+int vsnprintf(char *str, size_t n, const char *format, va_list ap) {
+ static FILE *fp = NULL;
+ va_list ap_new;
+ int len, written;
+
+ if (n < 1)
+ return 0;
+
+ str[0] = '\0';
+ if (fp == NULL) {
+ fp = fopen("/dev/null","w");
+ if (fp == NULL)
+ return 0;
+ }
+
+ va_copy(ap_new, ap);
+ len = vfprintf(fp, format, ap_new);
+ va_end(ap_new);
+
+ if (len <= 0)
+ return 0;
+
+ CharArray s(len+1);
+ vsprintf(s.buf, format, ap);
+
+ written = (len < (n - 1)) ? len : (n - 1);
+ memcpy(str, s.buf, written);
+ str[written] = '\0';
+ return len;
+}
+#endif /* HAVE_VSNPRINTF */
+