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/*------------------------------------------------------------------
* test_scanf_s
* File 'io/scanf_s.c'
* Lines executed:100.00% of 19
*
*------------------------------------------------------------------
*/
#include "test_private.h"
#include "safe_str_lib.h"
#include <stdio.h>
#include <stdarg.h>
#include <unistd.h>
#ifdef HAVE_SCANF_S
#define HAVE_NATIVE 1
#else
#define HAVE_NATIVE 0
#endif
#include "test_msvcrt.h"
#define LEN (128)
static char str1[LEN];
static char str2[LEN];
#define TMP "tmpscanf"
static FILE *stream = NULL;
void stuff_stdin(const char *dest);
int test_scanf_s(void);
void stuff_stdin(const char *dest) {
stream = fopen(TMP, "w+");
fprintf(stream, "%s\n", dest);
fclose(stream);
stream = freopen(TMP, "r", stdin);
}
int test_scanf_s(void) {
errno_t rc;
int32_t ind;
int i1;
size_t len1;
size_t len2;
size_t len3;
int errs = 0;
/*--------------------------------------------------*/
print_msvcrt(use_msvcrt);
#ifndef HAVE_CT_BOS_OVR
EXPECT_BOS("empty fmt")
GCC_DIAG_IGNORE(-Wformat-extra-args)
rc = scanf_s(NULL, NULL);
GCC_DIAG_RESTORE
init_msvcrt(errno == ESNULLP, &use_msvcrt);
ERREOF_MSVC(ESNULLP, EINVAL);
#endif
/* TODO: should error, but just hangs in both */
#if 0
rc = scanf_s("%s", NULL);
ERREOF_MSVC(ESNULLP,EINVAL);
#endif
/*--------------------------------------------------*/
stuff_stdin(" 24");
GCC_DIAG_IGNORE(-Wformat-extra-args)
rc = scanf_s("%s %%n", str2, LEN);
GCC_DIAG_RESTORE
#ifdef BSD_LIKE
if (rc != 0) { /* BSD's return -1 on %%n */
printf("%s %u wrong fscanf(\"\",L\"%%n\"): %d\n", __FUNCTION__,
__LINE__, (int)rc);
} else
#endif
if (rc != 1) {
printf("flapping tests - abort\n");
return errs;
}
ERR(1);
ERRNO(0);
stuff_stdin(" 24");
GCC_DIAG_IGNORE(-Wformat-extra-args)
rc = scanf_s("%s %%n", str2, 6);
GCC_DIAG_RESTORE
if (rc != 1) {
printf("flapping tests - abort\n");
return errs;
}
ERR(1);
ERRNO(0);
EXPSTR(str2, "24");
/*stuff_stdin(" 24");
rc = scanf_s("%s %%n", str3, 6);
ERR(1);
ERRNO(0);
EXPSTR(str3, "24");*/
stuff_stdin(" 24");
rc = scanf_s(" %d", &i1);
if (rc != 1) {
printf("flapping tests - abort\n");
return errs;
}
ERR(1);
ERRNO(0);
if (i1 != 24) {
debug_printf("%s %u wrong arg: %d\n", __FUNCTION__, __LINE__,
i1);
errs++;
}
/*--------------------------------------------------*/
strcpy(str1, "aaaaaaaaaa");
len1 = strlen(str1);
stuff_stdin(str1);
GCC_DIAG_IGNORE(-Wformat-extra-args)
rc = scanf_s("%s", str2, LEN);
GCC_DIAG_RESTORE
if (rc != 1) {
printf("flapping tests - abort\n");
return errs;
}
ERR(1)
len2 = strlen(str2);
len3 = strlen(str1);
if (len3 != len2) {
#ifdef DEBUG
len1 = strlen(str1);
#endif
debug_printf("%s %u lengths wrong: %d %d %d \n", __FUNCTION__,
__LINE__, (int)len1, (int)len2, (int)len3);
errs++;
}
/*--------------------------------------------------*/
strcpy(str1, "keep it simple");
stuff_stdin(str1);
GCC_DIAG_IGNORE(-Wformat-extra-args)
rc = scanf_s("%s", str2, LEN);
GCC_DIAG_RESTORE
if (rc != 1) {
printf("flapping tests - abort\n");
return errs;
}
ERR(1);
/* flapping test! */
/*EXPSTR(str2, "keep");*/
/*--------------------------------------------------*/
strcpy(str1, "qqweqq");
strcpy(str2, "keep it simple");
stuff_stdin(str1);
rc = scanf_s("%s", str2);
NOERR()
EXPSTR(str2, str1);
/*--------------------------------------------------*/
/* overlapping works fine on darwin, different on linux glibc */
/*
strcpy(str1, "12345678901234567890");
rc = scanf_s("%s", &str1[7]);
ERR(1);
EXPSTR(str1, "123456712345678901234567890");
strcpy(str1, "123456789");
rc = scanf_s("%s", &str1[8]);
ERR(1);
EXPSTR(str1, "12345678123456789");
*/
/*--------------------------------------------------*/
stuff_stdin(" 24");
GCC_DIAG_IGNORE(-Wformat)
GCC_DIAG_IGNORE(-Wformat-extra-args)
rc = scanf_s("%s %n", str2, LEN, &ind);
GCC_DIAG_RESTORE
ERREOF(EINVAL);
/*--------------------------------------------------*/
str1[0] = '\0';
str2[0] = '\0';
stuff_stdin(str1);
GCC_DIAG_IGNORE(-Wformat-extra-args)
rc = scanf_s("%s", str2, LEN);
GCC_DIAG_RESTORE
if (rc == -1) { /* flapping test */
ERR(-1);
EXPNULL(str2);
} else if (!use_msvcrt) {
ERR(1);
} /* else wine returns 0 */
/*--------------------------------------------------*/
str1[0] = '\0';
stuff_stdin(str1);
GCC_DIAG_IGNORE(-Wformat-extra-args)
rc = scanf_s("%s", str2, LEN);
GCC_DIAG_RESTORE
if (rc != -1) {
printf("flapping tests - abort\n");
return errs;
}
ERR(-1)
/*--------------------------------------------------*/
#ifdef __linux
debug_printf("%s %u skip test reading from closed stream\n", __FUNCTION__,
__LINE__);
#else
fclose(stream); /* crashes with linux glibc or musl: double free */
strcpy(str1, "qqweqq");
stuff_stdin(str1);
/* would block reading */
GCC_DIAG_IGNORE(-Wformat-extra-args)
rc = scanf_s("%s", str2, LEN);
GCC_DIAG_RESTORE
#endif
/*--------------------------------------------------*/
unlink(TMP);
return (errs);
}
#ifndef __KERNEL__
/* simple hack to get this to work for both userspace and Linux kernel,
until a better solution can be created. */
int main(void) { return (test_scanf_s()); }
#endif
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