mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 04:50:07 +00:00
a84dcb4bdf
With fortification enabled, fread calls return result needs to be checked, has it gets the __wur macro enabled. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
99 lines
1.8 KiB
C
99 lines
1.8 KiB
C
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <errno.h>
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <support/xstdio.h>
|
|
|
|
|
|
#define THE_COOKIE ((void *) 0xdeadbeeful)
|
|
|
|
static int errors;
|
|
|
|
|
|
static int cookieread_called;
|
|
static ssize_t
|
|
cookieread (void *cookie, char *buf, size_t count)
|
|
{
|
|
printf ("`%s' called with cookie %#lx\n", __FUNCTION__,
|
|
(unsigned long int) cookie);
|
|
if (cookie != THE_COOKIE)
|
|
++errors;
|
|
cookieread_called = 1;
|
|
return 42;
|
|
}
|
|
|
|
|
|
static int cookiewrite_called;
|
|
static ssize_t
|
|
cookiewrite (void *cookie, const char *buf, size_t count)
|
|
{
|
|
printf ("`%s' called with cookie %#lx\n", __FUNCTION__,
|
|
(unsigned long int) cookie);
|
|
if (cookie != THE_COOKIE)
|
|
++errors;
|
|
cookiewrite_called = 1;
|
|
return 43;
|
|
}
|
|
|
|
|
|
static int cookieseek_called;
|
|
static int
|
|
cookieseek (void *cookie, off64_t *offset, int whence)
|
|
{
|
|
printf ("`%s' called with cookie %#lx\n", __FUNCTION__,
|
|
(unsigned long int) cookie);
|
|
if (cookie != THE_COOKIE)
|
|
++errors;
|
|
cookieseek_called = 1;
|
|
return 44;
|
|
}
|
|
|
|
|
|
static int cookieclose_called;
|
|
static int
|
|
cookieclose (void *cookie)
|
|
{
|
|
printf ("`%s' called with cookie %#lx\n", __FUNCTION__,
|
|
(unsigned long int) cookie);
|
|
if (cookie != THE_COOKIE)
|
|
++errors;
|
|
cookieclose_called = 1;
|
|
return 45;
|
|
}
|
|
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
cookie_io_functions_t fcts;
|
|
char buf[1];
|
|
FILE *f;
|
|
|
|
fcts.read = cookieread;
|
|
fcts.seek = cookieseek;
|
|
fcts.close = cookieclose;
|
|
fcts.write = cookiewrite;
|
|
|
|
f = fopencookie (THE_COOKIE, "r+", fcts);
|
|
|
|
xfread (buf, 1, 1, f);
|
|
|
|
fwrite (buf, 1, 1, f);
|
|
fseek (f, 0, SEEK_CUR);
|
|
fclose (f);
|
|
|
|
if (cookieread_called == 0
|
|
|| cookiewrite_called == 0
|
|
|| cookieseek_called == 0
|
|
|| cookieclose_called == 0)
|
|
++errors;
|
|
|
|
return errors != 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|