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2.5-18.1

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This commit is contained in:
Jakub Jelinek
2007-07-12 18:26:36 +00:00
parent 7d58530341
commit 0ecb606cb6
6215 changed files with 494638 additions and 305010 deletions
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30
libio/fmemopen.c
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@ -1,5 +1,5 @@
/* Fmemopen implementation.
Copyright (C) 2000, 2002 Free Software Foundation, Inc.
Copyright (C) 2000, 2002, 2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Hanno Mueller, kontakt@hanno.de, 2000.
@ -27,8 +27,6 @@
* but couldn't find it in libio. The following snippet of code is an
* attempt to implement what glibc's documentation describes.
*
* No, it isn't really tested yet. :-)
*
*
*
* I already see some potential problems:
@ -73,6 +71,7 @@
#include <libio.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <sys/types.h>
#include "libioP.h"
@ -128,7 +127,7 @@ fmemopen_write (void *cookie, const char *b, size_t s)
if ((size_t) (c->pos + addnullc) == c->size)
{
__set_errno (ENOSPC);
return -1;
return 0;
}
s = c->size - c->pos - addnullc;
}
@ -166,7 +165,7 @@ fmemopen_seek (void *cookie, _IO_off64_t *p, int w)
break;
case SEEK_END:
np = c->size - *p;
np = c->maxpos - *p;
break;
default:
@ -176,9 +175,9 @@ fmemopen_seek (void *cookie, _IO_off64_t *p, int w)
if (np < 0 || (size_t) np > c->size)
return -1;
c->pos = np;
*p = c->pos = np;
return np;
return 0;
}
@ -203,6 +202,13 @@ fmemopen (void *buf, size_t len, const char *mode)
cookie_io_functions_t iof;
fmemopen_cookie_t *c;
if (__builtin_expect (len == 0, 0))
{
einval:
__set_errno (EINVAL);
return NULL;
}
c = (fmemopen_cookie_t *) malloc (sizeof (fmemopen_cookie_t));
if (c == NULL)
return NULL;
@ -220,7 +226,15 @@ fmemopen (void *buf, size_t len, const char *mode)
c->buffer[0] = '\0';
}
else
c->buffer = buf;
{
if (__builtin_expect ((uintptr_t) len > -(uintptr_t) buf, 0))
{
free (c);
goto einval;
}
c->buffer = buf;
}
c->size = len;