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glibc/stdio-common/tst-cookie.c
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#include <sys/types.h> | |
#include <sys/stat.h> | |
#include <fcntl.h> | |
#include <errno.h> | |
#include <stdio.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); | |
fread (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" |