strlen.c File Reference

#include <apitest.h>
#include <stdio.h>
#include <tchar.h>
#include <pseh/pseh2.h>
#include <ntstatus.h>

Include dependency graph for strlen.c:

Go to the source code of this file.

Macros
#define	EFLAGS_DF   0x400L

Typedefs
typedef *	PNTSTATUS
typedef size_t(*	PFN_STRLEN) (const char *)

Functions
typedef	_Return_type_success_ (return >=0) long NTSTATUS
void	Test_strlen (PFN_STRLEN pstrlen)
	START_TEST (strlen)

Macro Definition Documentation

EFLAGS_DF

#define EFLAGS_DF   0x400L

Definition at line 26 of file strlen.c.

Typedef Documentation

PFN_STRLEN

typedef size_t(* PFN_STRLEN) (const char *)

Definition at line 28 of file strlen.c.

PNTSTATUS

typedef * PNTSTATUS

Definition at line 14 of file strlen.c.

Function Documentation

_Return_type_success_()

typedef _Return_type_success_

(

return >=

0

)

START_TEST()

START_TEST

(

strlen

)

Definition at line 68 of file strlen.c.

{
    Test_strlen(strlen);
#ifdef __GNUC__
    Test_strlen(GCC_builtin_strlen);
#endif // __GNUC__
}

Test_strlen()

void Test_strlen

(

PFN_STRLEN

pstrlen

)

Definition at line 31 of file strlen.c.

{
    size_t len;
#if defined(_M_IX86) || defined(_M_AMD64)
    volatile uintptr_t eflags, eflags2;
    char *teststr = "a\0bcdefghijk";
#endif
 
    /* basic parameter tests */
    StartSeh()
        len = pstrlen(NULL);
    EndSeh(STATUS_ACCESS_VIOLATION);
    (void)len;
 
    ok_int((int)pstrlen("test"), 4);
 
#if defined(_M_IX86) || defined(_M_AMD64)
    eflags = __readeflags();
    __writeeflags(eflags | EFLAGS_DF);
    len = pstrlen(teststr + 4);
    eflags2 = __readeflags();
    MemoryBarrier();
    ok((eflags2 & EFLAGS_DF) != 0, "Direction flag in ELFAGS was changed: 0x%Ix -> 0x%Ix.\n", eflags | EFLAGS_DF, eflags2);
    __writeeflags(eflags);
 
    /* Only test this for the exported versions, intrinsics might do it
       differently. It's up to us to not do fishy stuff! Also crtdll does
       not do it like this. */
#ifndef TEST_CRTDLL
    if (pstrlen == strlen)
    {
        ok(len == 8, "Should not have gone backwards (got len %i)", (int)len);
    }
#endif // TEST_CRTDLL
#endif
}

Referenced by START_TEST().