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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998-2000 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License Version 2 or later (the
* "GPL"), in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your
* version of this file only under the terms of the GPL and not to
* allow others to use your version of this file under the MPL,
* indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by
* the GPL. If you do not delete the provisions above, a recipient
* may use your version of this file under either the MPL or the
* GPL.
*/
#include "primpl.h"
#include <string.h>
/*
** fprintf to a PRFileDesc
*/
PR_IMPLEMENT(PRUint32) PR_fprintf(PRFileDesc* fd, const char *fmt, ...)
{
va_list ap;
PRUint32 rv;
va_start(ap, fmt);
rv = PR_vfprintf(fd, fmt, ap);
va_end(ap);
return rv;
}
PR_IMPLEMENT(PRUint32) PR_vfprintf(PRFileDesc* fd, const char *fmt, va_list ap)
{
/* XXX this could be better */
PRUint32 rv, len;
char* msg = PR_vsmprintf(fmt, ap);
len = strlen(msg);
#ifdef XP_OS2
/*
* OS/2 really needs a \r for every \n.
* In the future we should try to use scatter-gather instead of a
* succession of PR_Write.
*/
if (isatty(PR_FileDesc2NativeHandle(fd))) {
PRUint32 last = 0, idx;
PRInt32 tmp;
rv = 0;
for (idx = 0; idx < len+1; idx++) {
if ((idx - last > 0) && (('\n' == msg[idx]) || (idx == len))) {
tmp = PR_Write(fd, msg + last, idx - last);
if (tmp >= 0) {
rv += tmp;
}
last = idx;
}
/*
* if current character is \n, and
* previous character isn't \r, and
* next character isn't \r
*/
if (('\n' == msg[idx]) &&
((0 == idx) || ('\r' != msg[idx-1])) &&
('\r' != msg[idx+1])) {
/* add extra \r */
tmp = PR_Write(fd, "\r", 1);
if (tmp >= 0) {
rv += tmp;
}
}
}
} else {
rv = PR_Write(fd, msg, len);
}
#else
rv = PR_Write(fd, msg, len);
#endif
PR_DELETE(msg);
return rv;
}
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