| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2002 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /* Ported from SPIE, section2/iosuite/stream4.c, by Airong Zhang */ |
| |
| /*====================================================================== |
| =================== TESTPLAN SEGMENT =================== |
| >KEYS: < fwrite() fread() |
| >WHAT: < 1) Ensure fwrite appends data to stream. |
| < 2) Ensure fread and fwrite return values are valid. |
| >HOW: < 1) Open a file, write to it, and then check it. |
| < 2) Fwrite a know quanity, check return value. |
| < Fread a know quanity, check return value. |
| >BUGS: < |
| ======================================================================*/ |
| |
| #include <stdio.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include "test.h" |
| |
| char *TCID = "stream04"; |
| int TST_TOTAL = 1; |
| int local_flag; |
| |
| #define PASSED 1 |
| #define FAILED 0 |
| |
| char progname[] = "stream04()"; |
| char tempfile1[40] = ""; |
| long ftell(); |
| |
| /* XXX: add setup and cleanup */ |
| |
| /*--------------------------------------------------------------------*/ |
| int main(int ac, char *av[]) |
| { |
| FILE *stream; |
| char *junk = "abcdefghijklmnopqrstuvwxyz"; |
| char *inbuf; |
| int ret; |
| |
| int lc; |
| const char *msg; |
| |
| /* |
| * parse standard options |
| */ |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| tst_tmpdir(); |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| local_flag = PASSED; |
| |
| sprintf(tempfile1, "stream04.%d", getpid()); |
| /*--------------------------------------------------------------------*/ |
| //block0: |
| if ((stream = fopen(tempfile1, "a+")) == NULL) { |
| tst_brkm(TFAIL | TERRNO, tst_rmdir, "fopen(%s) a+ failed", |
| tempfile1); |
| } |
| /* write something and check */ |
| if ((ret = |
| fwrite(junk, sizeof(*junk), strlen(junk), stream)) == 0) { |
| tst_brkm(TFAIL, tst_rmdir, "fwrite failed: %s", |
| strerror(errno)); |
| } |
| |
| if ((size_t) ret != strlen(junk)) { |
| tst_resm(TFAIL, |
| "strlen(junk) = %zi != return value from fwrite = %zi", |
| strlen(junk), ret); |
| local_flag = FAILED; |
| } |
| |
| fclose(stream); |
| if ((stream = fopen(tempfile1, "r+")) == NULL) { |
| tst_brkm(TFAIL, tst_rmdir, "fopen(%s) r+ failed: %s", tempfile1, |
| strerror(errno)); |
| } |
| if ((inbuf = malloc(strlen(junk))) == 0) { |
| tst_brkm(TBROK, tst_rmdir, "test failed because of malloc: %s", |
| strerror(errno)); |
| } |
| if ((ret = |
| fread(inbuf, sizeof(*junk), strlen(junk), stream)) == 0) { |
| tst_brkm(TFAIL, tst_rmdir, "fread failed: %s", |
| strerror(errno)); |
| } |
| if ((size_t) ret != strlen(junk)) { |
| tst_resm(TFAIL, |
| "strlen(junk) = %zi != return value from fread = %zi", |
| strlen(junk), ret); |
| local_flag = FAILED; |
| } |
| fclose(stream); |
| if (local_flag == PASSED) { |
| tst_resm(TPASS, "Test passed."); |
| } else { |
| tst_resm(TFAIL, "Test failed."); |
| } |
| /*--------------------------------------------------------------------*/ |
| unlink(tempfile1); |
| } /* end for */ |
| tst_rmdir(); |
| tst_exit(); |
| } |