[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

3 files changed, 100 insertions, 0 deletions

diff --git a/common/os/Makefile.am b/common/os/Makefile.am
new file mode 100644
index 00000000..23e4dfb2
--- /dev/null
+++ b/common/os/Makefile.am
@@ -0,0 +1,5 @@
+noinst_LTLIBRARIES = libos.la
+
+HDRS = print.h
+
+libos_la_SOURCES = $(HDRS) print.c
diff --git a/common/os/print.c b/common/os/print.c
new file mode 100644
index 00000000..a38ea2fe
--- /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 */
+
diff --git a/common/os/print.h b/common/os/print.h
new file mode 100644
index 00000000..471002cf
--- /dev/null
+++ b/common/os/print.h
@@ -0,0 +1,37 @@
+/* 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.
+ */
+
+#ifndef OS_PRINT_H
+#define OS_PRINT_H
+
+#ifdef HAVE_COMMON_CONFIG_H
+#include <common-config.h>
+#endif
+
+#ifdef WIN32
+#include <common-config.win32.h>
+#endif
+
+#include <stdarg.h>
+#include <sys/types.h>
+
+#ifndef HAVE_VSNPRINTF
+int vsnprintf(char *str, size_t n, const char *format, va_list ap);
+#endif
+
+#endif /* OS_PRINT_H */