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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /libio/fmemopen.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'libio/fmemopen.c')
-rw-r--r--libio/fmemopen.c30
1 files changed, 8 insertions, 22 deletions
diff --git a/libio/fmemopen.c b/libio/fmemopen.c
index f3b2800..ab6ffdd 100644
--- a/libio/fmemopen.c
+++ b/libio/fmemopen.c
@@ -1,5 +1,5 @@
/* Fmemopen implementation.
- Copyright (C) 2000, 2002, 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Hanno Mueller, kontakt@hanno.de, 2000.
@@ -27,6 +27,8 @@
* 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:
@@ -71,7 +73,6 @@
#include <libio.h>
#include <stdio.h>
#include <stdlib.h>
-#include <stdint.h>
#include <string.h>
#include <sys/types.h>
#include "libioP.h"
@@ -127,7 +128,7 @@ fmemopen_write (void *cookie, const char *b, size_t s)
if ((size_t) (c->pos + addnullc) == c->size)
{
__set_errno (ENOSPC);
- return 0;
+ return -1;
}
s = c->size - c->pos - addnullc;
}
@@ -165,7 +166,7 @@ fmemopen_seek (void *cookie, _IO_off64_t *p, int w)
break;
case SEEK_END:
- np = c->maxpos - *p;
+ np = c->size - *p;
break;
default:
@@ -175,9 +176,9 @@ fmemopen_seek (void *cookie, _IO_off64_t *p, int w)
if (np < 0 || (size_t) np > c->size)
return -1;
- *p = c->pos = np;
+ c->pos = np;
- return 0;
+ return np;
}
@@ -202,13 +203,6 @@ 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;
@@ -226,15 +220,7 @@ fmemopen (void *buf, size_t len, const char *mode)
c->buffer[0] = '\0';
}
else
- {
- if (__builtin_expect ((uintptr_t) len > -(uintptr_t) buf, 0))
- {
- free (c);
- goto einval;
- }
-
- c->buffer = buf;
- }
+ c->buffer = buf;
c->size = len;