test_sprintf_s.c

/*------------------------------------------------------------------
 * test_sprintf_s
 * File 'str/sprintf_s.c'
 * Lines executed:96.88% of 32
 *
 *------------------------------------------------------------------
 */

#include "test_private.h"
#include "safe_str_lib.h"
#if defined(TEST_MSVCRT) && defined(HAVE_SPRINTF_S)
#ifdef SAFECLIB_HAVE_C99
#undef sprintf_s
EXTERN int sprintf_s(char *restrict dest, rsize_t dmax,
                     const char *restrict fmt, ...);
#endif
#endif

#ifdef HAVE_SPRINTF_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];
int test_sprintf_s(void);

int test_sprintf_s(void) {
    errno_t rc;
    int ind;
    int len2;
    int len3;
    int errs = 0;

    /*--------------------------------------------------*/

    str2[0] = '\0';

#ifndef HAVE_CT_BOS_OVR
    print_msvcrt(use_msvcrt);
    /* older windows sprintf_s segv here */
    EXPECT_BOS("empty dest")
    rc = sprintf_s(NULL, LEN, "%s", str2);
    init_msvcrt(rc == -ESNULLP, &use_msvcrt);
    ERR_MSVC(-ESNULLP, -1);
    ERRNO_MSVC(0, EINVAL);

    /*--------------------------------------------------*/

    EXPECT_BOS("dest overflow")
    rc = sprintf_s(str1, RSIZE_MAX_STR + 1, "%s", str2);
    ERR_MSVC(-ESLEMAX, 0);
    ERRNO(0);

    /*--------------------------------------------------*/

    /* wine msvcrt doesn't check fmt==NULL */
#if !(defined(_WINE_MSVCRT) && defined(TEST_MSVCRT) && defined(HAVE_SPRINTF_S))
    EXPECT_BOS("empty fmt")
    rc = sprintf_s(str1, LEN, NULL);
    ERR_MSVC(-ESNULLP, -1);
    ERRNO_MSVC(0, EINVAL);
#endif

    /*--------------------------------------------------*/

    EXPECT_BOS("empty dest or dmax")
    rc = sprintf_s(str1, 0, "%s", str2);
    ERR_MSVC(-ESZEROL, -1);
    ERRNO_MSVC(0, EINVAL);
#endif
    /*--------------------------------------------------*/

    rc = sprintf_s(str1, LEN, "%s %n", str2, &ind);
    ERR(-1); /* EINVAL */
    errno = 0;

    rc = sprintf_s(str1, LEN, "%s %%n", str2);
    ERR(3)

    rc = sprintf_s(str1, LEN, "%%n");
    ERR(2);

    /*--------------------------------------------------*/

    /* TODO not yet implemented
    rc = sprintf_s(str1, LEN, "%p", NULL);
    ERR(-1);
    ERRNO_MSVC(ESNULLP, EINVAL);
    */

    /*--------------------------------------------------*/

    strcpy(str1, "aaaaaaaaaa");
    strcpy(str2, "keep it simple");

    rc = sprintf_s(str1, 1, "%s", str2);
#ifdef HAVE_CT_BOS_OVR
    print_msvcrt(use_msvcrt);
#endif
    init_msvcrt(rc == -ESNOSPC, &use_msvcrt);
    ERR_MSVC(-ESNOSPC, -1); /* ERANGE */
    ERRNO_MSVC(0, ERANGE);
    EXPNULL(str1)

    /*--------------------------------------------------*/

    strcpy(str1, "aaaaaaaaaa");
    strcpy(str2, "keep it simple");

    rc = sprintf_s(str1, 2, "%s", str2);
    ERR_MSVC(-ESNOSPC, -1);
    ERRNO_MSVC(0, ERANGE);
    EXPNULL(str1)

    /*--------------------------------------------------*/

    strcpy(str1, "aaaaaaaaaa");
    strcpy(str2, "keep it simple");

    len2 = strlen(str2);

    rc = sprintf_s(str1, 50, "%s", str2);
    ERR(len2)
    len3 = strlen(str1);
    if (len3 != len2) {
#ifdef DEBUG
        int len1 = strlen(str1);
        debug_printf("%s %u lengths wrong: %d  %d  %d \n", __FUNCTION__,
                     __LINE__, len1, len2, len3);
#endif
        errs++;
    }

    /*--------------------------------------------------*/

    str1[0] = '\0';
    strcpy(str2, "keep it simple");

    rc = sprintf_s(str1, 1, "%s", str2);
    ERR_MSVC(-ESNOSPC, -1);
    ERRNO_MSVC(0, ERANGE);
    EXPNULL(str1)

    /*--------------------------------------------------*/

    str1[0] = '\0';
    strcpy(str2, "keep it simple");

    rc = sprintf_s(str1, 2, "%s", str2);
    ERR_MSVC(-ESNOSPC, -1);
    ERRNO_MSVC(0, ERANGE);
    EXPNULL(str1)

    /*--------------------------------------------------*/

    str1[0] = '\0';
    strcpy(str2, "keep it simple");

    rc = sprintf_s(str1, 20, "%s", str2);
    NOERRNULL()
    EXPSTR(str1, str2)

    /*--------------------------------------------------*/

    str1[0] = '\0';
    str2[0] = '\0';

    rc = sprintf_s(str1, LEN, "%s", str2);
    ERR(0)
    EXPNULL(str1)

    /*--------------------------------------------------*/

    str1[0] = '\0';
    strcpy(str2, "keep it simple");

    rc = sprintf_s(str1, LEN, "%s", str2);
    NOERRNULL()
    EXPSTR(str1, str2)

    /*--------------------------------------------------*/

    strcpy(str1, "qqweqq");
    strcpy(str2, "keep it simple");

    rc = sprintf_s(str1, LEN, "%s", str2);
    NOERRNULL()
    EXPSTR(str1, "keep it simple")

    /*--------------------------------------------------*/

    strcpy(str1, "1234");
    strcpy(str2, "keep it simple");

    rc = sprintf_s(str1, 12, "%s", str2);
    ERR_MSVC(-ESNOSPC, -1);
    ERRNO_MSVC(0, ERANGE);

    /*--------------------------------------------------*/

    strcpy(str1, "1234");
    strcpy(str2, "keep it simple");

    rc = sprintf_s(str1, 52, "%s", str2);
    NOERRNULL()
    EXPSTR(str1, "keep it simple")

    /*--------------------------------------------------*/

    strcpy(str1, "12345678901234567890");

    rc = sprintf_s(str1, 8, "%s", &str1[7]);
    ERR_MSVC(-ESNOSPC, -1);
    ERRNO_MSVC(0, ERANGE);
    EXPNULL(str1)

    /*--------------------------------------------------*/

    strcpy(str1, "123456789");

    rc = sprintf_s(str1, 9, "%s", &str1[8]);
    ERR(1) /* overlapping allowed */
    EXPSTR(str1, "9")

    /*--------------------------------------------------*/

    strcpy(str2, "123");
    strcpy(str1, "keep it simple");

    rc = sprintf_s(str2, 31, "%s", &str1[0]);
    NOERRNULL()
    EXPSTR(str2, "keep it simple")

    /*--------------------------------------------------*/

    strcpy(str2, "1234");
    strcpy(str1, "56789");

    rc = sprintf_s(str2, 10, "%s", str1);
    NOERRNULL()
    EXPSTR(str2, "56789")

    /*--------------------------------------------------*/

    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_sprintf_s()); }
#endif