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Fixed bug in flushbuf: did not reset stream->_ptr on write error

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This commit is contained in:
ceriel 1993-01-14 10:02:28 +00:00
parent fd0bc5d531
commit 7eb7218667
1 changed files with 7 additions and 4 deletions
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11
lang/cem/libcc.ansi/stdio/flushbuf.c
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@ -83,7 +83,13 @@ __flushbuf(int c, FILE * stream)
return c; return c;
} else if (io_testflag(stream, _IOLBF)) { } else if (io_testflag(stream, _IOLBF)) {
*stream->_ptr++ = c; *stream->_ptr++ = c;
/* stream->_count has been updated in putc macro. */
if (c == '\n' || stream->_count == -stream->_bufsiz) { if (c == '\n' || stream->_count == -stream->_bufsiz) {
int count = -stream->_count;
stream->_ptr = stream->_buf;
stream->_count = 0;
if (io_testflag(stream, _IOAPPEND)) { if (io_testflag(stream, _IOAPPEND)) {
if (_lseek(fileno(stream), 0L, SEEK_END) == -1) { if (_lseek(fileno(stream), 0L, SEEK_END) == -1) {
stream->_flags |= _IOERR; stream->_flags |= _IOERR;
@ -91,12 +97,9 @@ __flushbuf(int c, FILE * stream)
} }
} }
if (! do_write(fileno(stream), (char *)stream->_buf, if (! do_write(fileno(stream), (char *)stream->_buf,
-stream->_count)) { count)) {
stream->_flags |= _IOERR; stream->_flags |= _IOERR;
return EOF; return EOF;
} else {
stream->_ptr = stream->_buf;
stream->_count = 0;
} }
} }
} else { } else {