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Realloc error handling memory leak fix.

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This commit is contained in:
Ulrich Drepper
2001-12-29 15:57:15 +00:00
parent 9403ec5d23
commit d1dddedf78
10 changed files with 100 additions and 50 deletions
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11
libio/iogetdelim.c
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@ -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;