-/* Copyright (C) 1993, 1997, 1998 Free Software Foundation, Inc.
- This file is part of the GNU IO Library.
+/* Copyright (C) 1993-2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
- This library 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, or (at
- your option) any later version.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
- This library is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
+ The GNU C Library 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.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this library; see the file COPYING. If not, write to
- the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>.
- As a special exception, if you link this library with files
- compiled with a GNU compiler to produce an executable, this does
- not cause the resulting executable to be covered by the GNU General
- Public License. This exception does not however invalidate any
- other reasons why the executable file might be covered by the GNU
- General Public License. */
+ As a special exception, if you link the code in this file with
+ files compiled with a GNU compiler to produce an executable,
+ that does not cause the resulting executable to be covered by
+ the GNU Lesser General Public License. This exception does not
+ however invalidate any other reasons why the executable file
+ might be covered by the GNU Lesser General Public License.
+ This exception applies to code released by its copyright holders
+ in files containing the exception. */
#include "libioP.h"
#include <string.h>
-#if defined _LIBC || !_G_HAVE_IO_GETLINE_INFO
-
-_IO_size_t
-_IO_getline (fp, buf, n, delim, extract_delim)
- _IO_FILE *fp;
- char *buf;
- _IO_size_t n;
- int delim;
- int extract_delim;
+size_t
+_IO_getline (FILE *fp, char *buf, size_t n, int delim,
+ int extract_delim)
{
return _IO_getline_info (fp, buf, n, delim, extract_delim, (int *) 0);
}
+libc_hidden_def (_IO_getline)
/* Algorithm based on that used by Berkeley pre-4.4 fgets implementation.
If extract_delim < 0, leave delimiter unread.
If extract_delim > 0, insert delim in output. */
-_IO_size_t
-_IO_getline_info (fp, buf, n, delim, extract_delim, eof)
- _IO_FILE *fp;
- char *buf;
- _IO_size_t n;
- int delim;
- int extract_delim;
- int *eof;
+size_t
+_IO_getline_info (FILE *fp, char *buf, size_t n, int delim,
+ int extract_delim, int *eof)
{
char *ptr = buf;
if (eof != NULL)
*eof = 0;
- do
+ if (__builtin_expect (fp->_mode, -1) == 0)
+ _IO_fwide (fp, -1);
+ while (n != 0)
{
- _IO_ssize_t len = fp->_IO_read_end - fp->_IO_read_ptr;
+ ssize_t len = fp->_IO_read_end - fp->_IO_read_ptr;
if (len <= 0)
{
int c = __uflow (fp);
if (c == EOF)
{
- if (eof) *eof = c;
+ if (eof)
+ *eof = c;
break;
}
if (c == delim)
*ptr++ = c;
else if (extract_delim < 0)
_IO_sputbackc (fp, c);
- return ptr - buf;
if (extract_delim > 0)
++len;
+ return ptr - buf;
}
*ptr++ = c;
n--;
}
- else
- {
- char *t;
- if ((_IO_size_t) len >= n)
- len = n;
- t = (char *) memchr ((void *) fp->_IO_read_ptr, delim, len);
- if (t != NULL)
- {
- _IO_size_t old_len = ptr-buf;
- len = t - fp->_IO_read_ptr;
- if (extract_delim >= 0)
- {
- ++t;
- if (extract_delim > 0)
- ++len;
- }
- memcpy ((void *) ptr, (void *) fp->_IO_read_ptr, len);
- fp->_IO_read_ptr = t;
- return old_len + len;
- }
- memcpy ((void *) ptr, (void *) fp->_IO_read_ptr, len);
- fp->_IO_read_ptr += len;
- ptr += len;
- n -= len;
- }
- } while (n != 0);
+ else
+ {
+ char *t;
+ if ((size_t) len >= n)
+ len = n;
+ t = (char *) memchr ((void *) fp->_IO_read_ptr, delim, len);
+ if (t != NULL)
+ {
+ size_t old_len = ptr-buf;
+ len = t - fp->_IO_read_ptr;
+ if (extract_delim >= 0)
+ {
+ ++t;
+ if (extract_delim > 0)
+ ++len;
+ }
+ memcpy ((void *) ptr, (void *) fp->_IO_read_ptr, len);
+ fp->_IO_read_ptr = t;
+ return old_len + len;
+ }
+ memcpy ((void *) ptr, (void *) fp->_IO_read_ptr, len);
+ fp->_IO_read_ptr += len;
+ ptr += len;
+ n -= len;
+ }
+ }
return ptr - buf;
}
-
-#endif /* Defined _LIBC || !_G_HAVE_IO_GETLINE_INFO */
+libc_hidden_def (_IO_getline_info)
projects / thirdparty / glibc.git / blobdiff