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

//

//        strncat1.c

//

//        Testcase for C library strncat()

//

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

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

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

//

// Author(s):     ctarpy, jlarmour

// Contributors:  

// Date:          2000-04-30

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

//

//

//####DESCRIPTIONEND####

// CONFIGURATION

#include <pkgconf/system.h>

#include <pkgconf/libc_string.h>   // Configuration header

// INCLUDES

#include <string.h>

#include <cyg/infra/testcase.h>

// 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;

    CYG_TEST_INIT();

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

                  "memmove() function");

    CYG_TEST_INFO("This testcase provides simple basic tests");

    // Check 1

    my_strcpy(x, "One ring to rule them all.");

    my_strcpy(y, "One ring to find them.");

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

    if ( my_strcmp(x, "One ring to rule them all.One ring to find them.")==0 )

        CYG_TEST_PASS("Simple concatenation");

    else

        CYG_TEST_FAIL("Simple concatenation");

    // Check return val

    CYG_TEST_PASS_FAIL( ( ret == x ), "Simple concatenation return value" );

    // Check 2

    my_strcpy(x, "One ring to bring them all,");

    my_strcpy(y, "");

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

    if ( my_strcmp(x, "One ring to bring them all,")==0 )

        CYG_TEST_PASS("Concatenation of empty string");

    else

        CYG_TEST_FAIL("Concatenation of empty string");

    // Check return val

    CYG_TEST_PASS_FAIL( ( ret == x ),

                        "Concatenation of empty string return value" );

    // Check 3

    my_strcpy(x, "and in the darkness bind them");

    my_strcpy(y, "");

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

    if ( my_strcmp(x, "and in the darkness bind them")==0 )

        CYG_TEST_PASS("Concatenation to empty string");

    else

        CYG_TEST_FAIL("Concatenation to empty string");

    // Check return val

    CYG_TEST_PASS_FAIL( ( ret == y ),

                        "Concatenation to empty string return value" );

    // Check 4

    my_strcpy(x, "in the land of ");

    my_strcpy(y, "Mordor, where the shadows lie");

    ret = strncat(x, y, 6 );

    if ( my_strcmp(x, "in the land of Mordor")==0 )

        CYG_TEST_PASS("Concatenation of partial string string");

    else

        CYG_TEST_FAIL("Concatenation of partial string");

    // Check return val

    CYG_TEST_PASS_FAIL( ( ret == x ),

                        "Concatenation to empty string return value" );

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

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

                    "strncat() function");

} // main()

// EOF strncat1.c