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//=================================================================

//

//        strncpy2.c

//

//        Testcase for C library strncpy()

//

//=================================================================

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//=================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):     ctarpy, jlarmour

// Contributors:  

// Date:          2000-04-30

// Description:   Contains testcode for C library strncpy() function

//

//

//####DESCRIPTIONEND####

// INCLUDES

#include <string.h>

#include <cyg/infra/testcase.h>

// CONSTANTS

#define NUM_ROBUSTNESS_RUNS 300

// FUNCTIONS

// Functions to avoid having to use libc strings

static int my_strlen(const char *s)

{

    const char *ptr;

    ptr = s;

    for ( ptr=s ; *ptr != '\0' ; ptr++ )

        ;

    return (int)(ptr-s);

} // my_strlen()

static int my_strcmp(const char *s1, const char *s2)

{

    for ( ; *s1 == *s2 ; s1++,s2++ )

    {

        if ( *s1 == '\0' )

            break;

    } // for

    return (*s1 - *s2);

} // my_strcmp()

static char *my_strcpy(char *s1, const char *s2)

{

    while (*s2 != '\0') {

        *(s1++) = *(s2++);

    }

    *s1 = '\0';

    return s1;

} // my_strcpy()

int main( int argc, char *argv[] )

{

    char x[300];

    char y[300];

    char *ret;

    int ctr;

    int fail;

    CYG_TEST_INIT();

    CYG_TEST_INFO("Starting tests from testcase " __FILE__ " for C library "

                  "strncpy() function");

    CYG_TEST_INFO("This testcase tests robustness, and may take some time");

    fail = 0;

    for (ctr = 0; ctr < NUM_ROBUSTNESS_RUNS; ctr++) {

        my_strcpy(x, "Green plastic watering can, ");

        my_strcpy(y, "for her fake Chineese rubber plant");

        ret = strncpy(x, y, my_strlen(y)+1);

        if ( (my_strcmp(x, "for her fake Chineese rubber plant") != 0) ||

             ( ret != x ) )

        {

            fail = 1;

            break;

        } // if

    } // for

    CYG_TEST_PASS_FAIL( (fail == 0), "Robustness test" );

//    CYG_TEST_NA("Testing is not applicable to this configuration");

    CYG_TEST_FINISH("Finished tests from testcase " __FILE__ " for C library "

                    "strncpy() function");

} // main()

// EOF strncpy2.c