| /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| #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); |
| if (NULL == msg) { |
| return -1; |
| } |
| 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; |
| } |