diff options
Diffstat (limited to 'librols/stdio/filewrite.c')
-rw-r--r-- | librols/stdio/filewrite.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/librols/stdio/filewrite.c b/librols/stdio/filewrite.c new file mode 100644 index 0000000..dd3603f --- /dev/null +++ b/librols/stdio/filewrite.c @@ -0,0 +1,107 @@ +/* + * This file has been modified for the cdrkit suite. + * + * The behaviour and appearence of the program code below can differ to a major + * extent from the version distributed by the original author(s). + * + * For details, see Changelog file distributed with the cdrkit package. If you + * received this file from another source then ask the distributing person for + * a log of modifications. + * + */ + +/* @(#)filewrite.c 1.14 04/08/08 Copyright 1986, 1995-2003 J. Schilling */ +/* + * Copyright (c) 1986, 1995-2003 J. Schilling + */ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * 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; see the file COPYING. If not, write to the Free Software + * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include "schilyio.h" + +static char _writeerr[] = "file_write_err"; + +#ifdef HAVE_USG_STDIO + +EXPORT int +filewrite(f, vbuf, len) + register FILE *f; + void *vbuf; + int len; +{ + register int n; + int cnt; + char *buf = vbuf; + + down2(f, _IOWRT, _IORW); + + if (f->_flag & _IONBF) { + cnt = write(fileno(f), buf, len); + if (cnt < 0) { + f->_flag |= _IOERR; + if (!(my_flag(f) & _IONORAISE)) + raisecond(_writeerr, 0L); + } + return (cnt); + } + cnt = 0; + while (len > 0) { + if (f->_cnt <= 0) { + if (usg_flsbuf((unsigned char) *buf++, f) == EOF) + break; + cnt++; + if (--len == 0) + break; + } + if ((n = f->_cnt >= len ? len : f->_cnt) > 0) { + f->_ptr = (unsigned char *)movebytes(buf, f->_ptr, n); + buf += n; + f->_cnt -= n; + cnt += n; + len -= n; + } + } + if (!ferror(f)) + return (cnt); + if (!(my_flag(f) & _IONORAISE)) + raisecond(_writeerr, 0L); + return (-1); +} + +#else + +EXPORT int +filewrite(f, vbuf, len) + register FILE *f; + void *vbuf; + int len; +{ + int cnt; + char *buf = vbuf; + + down2(f, _IOWRT, _IORW); + + if (my_flag(f) & _IOUNBUF) + return (write(fileno(f), buf, len)); + cnt = fwrite(buf, 1, len, f); + + if (!ferror(f)) + return (cnt); + if (!(my_flag(f) & _IONORAISE)) + raisecond(_writeerr, 0L); + return (-1); +} + +#endif /* HAVE_USG_STDIO */ |