first public release of samba4 code

source/lib/dprintf.c

@@ -0,0 +1,113 @@
+/* 
+   Unix SMB/CIFS implementation.
+   display print functions
+   Copyright (C) Andrew Tridgell 2001
+   
+   This program 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 program 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 program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+
+/*
+  this module provides functions for printing internal strings in the "display charset"
+  This charset may be quite different from the chosen unix charset
+
+  Eventually these functions will need to take care of column count constraints
+
+  The d_ prefix on print functions in Samba refers to the display character set
+  conversion
+*/
+
+#include "includes.h"
+
+ int d_vfprintf(FILE *f, const char *format, va_list ap)
+{
+	char *p, *p2;
+	int ret, maxlen, clen;
+	const char *msgstr;
+	va_list ap2;
+
+	/* do any message translations */
+	msgstr = lang_msg(format);
+	if (!msgstr) return -1;
+
+	VA_COPY(ap2, ap);
+
+	ret = vasprintf(&p, msgstr, ap2);
+
+	lang_msg_free(msgstr);
+
+	if (ret <= 0) return ret;
+
+	/* now we have the string in unix format, convert it to the display
+	   charset, but beware of it growing */
+	maxlen = ret*2;
+again:
+	p2 = malloc(maxlen);
+	if (!p2) {
+		SAFE_FREE(p);
+		return -1;
+	}
+	clen = convert_string(CH_UNIX, CH_DISPLAY, p, ret, p2, maxlen);
+
+	if (clen >= maxlen) {
+		/* it didn't fit - try a larger buffer */
+		maxlen *= 2;
+		SAFE_FREE(p2);
+		goto again;
+	}
+
+	/* good, its converted OK */
+	SAFE_FREE(p);
+	ret = fwrite(p2, 1, clen, f);
+	SAFE_FREE(p2);
+
+	return ret;
+}
+
+
+ int d_fprintf(FILE *f, const char *format, ...)
+{
+	int ret;
+	va_list ap;
+
+	va_start(ap, format);
+	ret = d_vfprintf(f, format, ap);
+	va_end(ap);
+
+	return ret;
+}
+
+static FILE *outfile;
+
+ int d_printf(const char *format, ...)
+{
+	int ret;
+	va_list ap;
+
+	if (!outfile) outfile = stdout;
+	
+	va_start(ap, format);
+	ret = d_vfprintf(outfile, format, ap);
+	va_end(ap);
+
+	return ret;
+}
+
+/* interactive programs need a way of tell d_*() to write to stderr instead
+   of stdout */
+void display_set_stderr(void)
+{
+	outfile = stderr;
+}