190 lines
3.3 KiB
C
190 lines
3.3 KiB
C
/*
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*
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* Copyright (c) International Business Machines Corp., 2002
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* 01/02/2003 Port to LTP avenkat@us.ibm.com */
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/* 06/30/2001 Port to Linux nsharoff@us.ibm.com */
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/*
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* NAME
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* memcpy -- test memcpy
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*
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* CALLS
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* memcpy1(3)
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*
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* ALGORITHM
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* There are 2 cases for copies: S = Source, D = Destination
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*
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* 1 - S < D no overlap
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* 2 - D < S no overlap
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*
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* We try both cases. Check buffer boundaries.
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*
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* RESTRICTIONS
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*/
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include "test.h"
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char *TCID = "memcpy1";
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#undef BSIZE
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#define BSIZE 4096
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#define LEN 100
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#define FAILED 0
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#define PASSED 1
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int local_flag = PASSED;
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int block_number;
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FILE *temp;
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int TST_TOTAL = 1;
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char buf[BSIZE];
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int anyfail();
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int blenter();
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int blexit();
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void setup();
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void clearit();
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void fill(char *str);
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int checkit(char *str);
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int main(int argc, char *argv[])
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{
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char *p, *q;
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tst_parse_opts(argc, argv, NULL, NULL);
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setup(); /* temp file is now open */
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/*--------------------------------------------------------------*/
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blenter();
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clearit();
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p = &buf[100];
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fill(p);
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q = &buf[800];
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memcpy(q, p, LEN);
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if (checkit(q)) {
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fprintf(temp, "\tcopy failed - missed data\n");
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local_flag = FAILED;
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}
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if (p[-1] || p[LEN]) {
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fprintf(temp, "\tcopy failed - 'to' bounds\n");
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local_flag = FAILED;
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}
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if (q[-1] || q[LEN]) {
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fprintf(temp, "\tcopy failed - 'from' bounds\n");
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local_flag = FAILED;
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}
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blexit();
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/*--------------------------------------------------------------*/
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blenter();
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clearit();
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p = &buf[800];
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fill(p);
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q = &buf[100];
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memcpy(q, p, LEN);
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if (checkit(q)) {
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fprintf(temp, "\tcopy failed - missed data\n");
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local_flag = FAILED;
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}
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if (p[-1] || p[LEN]) {
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fprintf(temp, "\tcopy failed - 'to' bounds\n");
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local_flag = FAILED;
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}
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if (q[-1] || q[LEN]) {
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fprintf(temp, "\tcopy failed - 'from' bounds\n");
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local_flag = FAILED;
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}
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blexit();
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anyfail();
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tst_exit();
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}
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void clearit(void)
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{
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register int i;
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for (i = 0; i < BSIZE; i++)
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buf[i] = 0;
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}
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void fill(char *str)
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{
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register int i;
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for (i = 0; i < LEN; i++)
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*str++ = 'a';
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}
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int checkit(char *str)
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{
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register int i;
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for (i = 0; i < LEN; i++)
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if (*str++ != 'a')
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return (-1);
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return (0);
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}
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int anyfail(void)
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{
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(local_flag == FAILED) ? tst_resm(TFAIL,
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"Test failed") : tst_resm(TPASS,
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"Test passed");
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tst_exit();
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}
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void setup(void)
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{
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temp = stderr;
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}
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int blenter(void)
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{
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local_flag = PASSED;
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return 0;
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}
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int blexit(void)
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{
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(local_flag == FAILED) ? tst_resm(TFAIL,
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"Test failed") : tst_resm(TPASS,
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"Test passed");
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return 0;
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}
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