diff options
Diffstat (limited to 'libio/iogetdelim.c')
| -rw-r--r-- | libio/iogetdelim.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/libio/iogetdelim.c b/libio/iogetdelim.c deleted file mode 100644 index 59138881b8..0000000000 --- a/libio/iogetdelim.c +++ /dev/null @@ -1,129 +0,0 @@ -/* Copyright (C) 1994-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - 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. - - 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 - Lesser General Public License for more details. - - 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 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 <stdlib.h> -#include "libioP.h" -#include <string.h> -#include <errno.h> -#include <limits.h> - -/* Read up to (and including) a TERMINATOR from FP into *LINEPTR - (and null-terminate it). *LINEPTR is a pointer returned from malloc (or - NULL), pointing to *N characters of space. It is realloc'ed as - necessary. Returns the number of characters read (not including the - null terminator), or -1 on error or EOF. */ - -_IO_ssize_t -_IO_getdelim (char **lineptr, _IO_size_t *n, int delimiter, _IO_FILE *fp) -{ - _IO_ssize_t result; - _IO_ssize_t cur_len = 0; - _IO_ssize_t len; - - if (lineptr == NULL || n == NULL) - { - MAYBE_SET_EINVAL; - return -1; - } - CHECK_FILE (fp, -1); - _IO_acquire_lock (fp); - if (_IO_ferror_unlocked (fp)) - { - result = -1; - goto unlock_return; - } - - if (*lineptr == NULL || *n == 0) - { - *n = 120; - *lineptr = (char *) malloc (*n); - if (*lineptr == NULL) - { - result = -1; - goto unlock_return; - } - } - - len = fp->_IO_read_end - fp->_IO_read_ptr; - if (len <= 0) - { - if (__underflow (fp) == EOF) - { - result = -1; - goto unlock_return; - } - len = fp->_IO_read_end - fp->_IO_read_ptr; - } - - for (;;) - { - _IO_size_t needed; - char *t; - t = (char *) memchr ((void *) fp->_IO_read_ptr, delimiter, len); - if (t != NULL) - len = (t - fp->_IO_read_ptr) + 1; - if (__glibc_unlikely (len >= SSIZE_MAX - cur_len)) - { - __set_errno (EOVERFLOW); - result = -1; - goto unlock_return; - } - /* Make enough space for len+1 (for final NUL) bytes. */ - needed = cur_len + len + 1; - if (needed > *n) - { - char *new_lineptr; - - if (needed < 2 * *n) - needed = 2 * *n; /* Be generous. */ - new_lineptr = (char *) realloc (*lineptr, needed); - if (new_lineptr == NULL) - { - result = -1; - goto unlock_return; - } - *lineptr = new_lineptr; - *n = needed; - } - memcpy (*lineptr + cur_len, (void *) fp->_IO_read_ptr, len); - fp->_IO_read_ptr += len; - cur_len += len; - if (t != NULL || __underflow (fp) == EOF) - break; - len = fp->_IO_read_end - fp->_IO_read_ptr; - } - (*lineptr)[cur_len] = '\0'; - result = cur_len; - -unlock_return: - _IO_release_lock (fp); - return result; -} - -#ifdef weak_alias -weak_alias (_IO_getdelim, __getdelim) -weak_alias (_IO_getdelim, getdelim) -#endif |