diff options
Diffstat (limited to 'libio')
| -rw-r--r-- | libio/iogetdelim.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/libio/iogetdelim.c b/libio/iogetdelim.c index e648bf0374..edc5228693 100644 --- a/libio/iogetdelim.c +++ b/libio/iogetdelim.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc. +/* Copyright (C) 1994, 1996, 1997, 1998, 2001 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 @@ -96,15 +96,18 @@ _IO_getdelim (lineptr, n, delimiter, fp) needed = cur_len + len + 1; if (needed > *n) { + char *new_lineptr; + if (needed < 2 * *n) needed = 2 * *n; /* Be generous. */ - *n = needed; - *lineptr = (char *) realloc (*lineptr, needed); - if (*lineptr == NULL) + 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; |