| /* |
| * |
| * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* ported from SPIE, section2/filesuite/stream3.c, by Airong Zhang */ |
| |
| /*====================================================================== |
| =================== TESTPLAN SEGMENT =================== |
| >KEYS: < fseek() ftell() |
| >WHAT: < 1) Ensure ftell reports the correct current byte offset. |
| >HOW: < 1) Open a file, write to it, reposition the file pointer and |
| check it. |
| >BUGS: < |
| ======================================================================*/ |
| #define _XOPEN_SOURCE 500 |
| #include <stdio.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include "test.h" |
| #include "usctest.h" |
| |
| char *TCID = "stream03"; |
| int TST_TOTAL = 1; |
| extern int Tst_count; |
| int local_flag; |
| |
| #define PASSED 1 |
| #define FAILED 0 |
| |
| char progname[] = "stream03()" ; |
| char tempfile1[40]=""; |
| long ftell(); |
| |
| /*--------------------------------------------------------------------*/ |
| int main(int ac, char *av[]) |
| { |
| FILE *stream; |
| char buf[30]; |
| char *junk="abcdefghijklmnopqrstuvwxyz"; |
| long pos; |
| off_t opos; |
| int lc; /* loop counter */ |
| char *msg; /* message returned from parse_opts */ |
| |
| /* |
| * parse standard options |
| */ |
| if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){ |
| tst_resm(TBROK, "OPTION PARSING ERROR - %s", msg); |
| tst_exit(); |
| /*NOTREACHED*/ |
| } |
| |
| local_flag = PASSED; |
| tst_tmpdir(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| sprintf(tempfile1, "stream03.%d", getpid()); |
| /*--------------------------------------------------------------------*/ |
| //block0: |
| if(creat(tempfile1,0666) < 0) { |
| tst_resm(TBROK,"\tcreat failed\n"); |
| tst_exit(); |
| } |
| if((stream=fopen(tempfile1,"a+")) == NULL) { |
| tst_resm(TBROK,"\tfopen a+ failed\n"); |
| tst_exit(); |
| } |
| /* make sure offset of zero at start */ |
| pos=ftell(stream); |
| if ( pos != 0 ) { |
| tst_resm(TFAIL,"file pointer descrepancy 1"); |
| local_flag = FAILED; |
| } |
| /* write something and check */ |
| if(fwrite(junk,sizeof(*junk),strlen(junk),stream) == 0) { |
| tst_resm(TFAIL,"\tfwrite failed\n"); |
| tst_exit(); |
| } |
| pos=ftell(stream); |
| if (pos != strlen(junk) ) { |
| tst_resm(TFAIL, "strlen(junk):file pointer descrepancy 2"); |
| local_flag = FAILED; |
| } |
| /* rewind and check */ |
| rewind(stream); |
| pos=ftell(stream); |
| if ( pos != 0 ) { |
| tst_resm(TFAIL,0,"file pointer descrepancy 3"); |
| local_flag = FAILED; |
| } |
| /* seek from current position and then check */ |
| if (fseek(stream,strlen(junk),1) != 0) { |
| tst_resm(TFAIL,"\tfseek failed\n"); |
| tst_exit(); |
| } |
| pos=ftell(stream); |
| if (pos != strlen(junk) ) { |
| tst_resm(TFAIL,"strlen(junk),file pointer descrepancy 4"); |
| local_flag = FAILED; |
| } |
| /* seek from end of file and then check */ |
| if (fseek(stream,0,2) != 0) { |
| tst_resm(TFAIL,"\tfseek failed\n"); |
| tst_exit(); |
| } |
| pos=ftell(stream); |
| if (pos != strlen(junk) ) { |
| tst_resm(TFAIL,"strlen(junk),file pointer descrepancy 5"); |
| local_flag = FAILED; |
| } |
| /* rewind with seek and then check */ |
| if (fseek(stream,0,0) != 0) { |
| tst_resm(TFAIL,"\tfseek failed\n"); |
| tst_exit(); |
| } |
| pos=ftell(stream); |
| if (pos != 0 ) { |
| tst_resm(TFAIL,"file pointer descrepancy 6"); |
| local_flag = FAILED; |
| } |
| |
| /* read till EOF, do getc and then check ftell */ |
| while (fgets (buf, 30, stream)); |
| pos=ftell(stream); |
| (void) getc(stream); |
| pos=ftell(stream); |
| if (pos != strlen(junk) ) { |
| tst_resm(TFAIL,"strlen(junk),file pointer descrepancy 7"); |
| local_flag = FAILED; |
| } |
| fclose(stream); |
| if (local_flag == PASSED) { |
| tst_resm(TPASS, "Test passed in block0.\n"); |
| } else { |
| tst_resm(TFAIL, "Test failed in block0.\n"); |
| } |
| |
| local_flag = PASSED; |
| |
| unlink(tempfile1); |
| /*--------------------------------------------------------------------*/ |
| //block1: |
| if(creat(tempfile1,0666) < 0) { |
| tst_resm(TFAIL,"\tcreat failed\n"); |
| tst_exit(); |
| } |
| if((stream=fopen(tempfile1,"a+")) == NULL) { |
| tst_resm(TFAIL,"\tfopen a+ failed\n"); |
| tst_exit(); |
| } |
| /* make sure offset of zero at start */ |
| opos=ftello(stream); |
| if ( opos != 0 ) { |
| tst_resm(TFAIL,"file pointer descrepancy 1"); |
| local_flag = FAILED; |
| } |
| /* write something and check */ |
| if(fwrite(junk,sizeof(*junk),strlen(junk),stream) == 0) { |
| tst_resm(TFAIL,"\tfwrite failed\n"); |
| tst_exit(); |
| } |
| opos=ftello(stream); |
| if (opos != strlen(junk) ) { |
| tst_resm(TFAIL,"strlen(junk),file pointer descrepancy 2"); |
| local_flag = FAILED; |
| } |
| /* rewind and check */ |
| rewind(stream); |
| opos=ftello(stream); |
| if ( opos != 0 ) { |
| tst_resm(TFAIL,"file pointer descrepancy 3"); |
| local_flag = FAILED; |
| } |
| /* seek from current position and then check */ |
| if (fseeko(stream, (off_t)strlen(junk), 1) != 0) { |
| tst_resm(TFAIL,"\tfseeko failed\n"); |
| tst_exit(); |
| } |
| opos=ftello(stream); |
| if (opos != strlen(junk) ) { |
| tst_resm(TFAIL,"strlen(junk),file pointer descrepancy 4"); |
| local_flag = FAILED; |
| } |
| /* seek from end of file and then check */ |
| if (fseeko(stream, (off_t)0, 2) != 0) { |
| tst_resm(TFAIL,"\tfseeko failed\n"); |
| tst_exit(); |
| } |
| opos=ftello(stream); |
| if (opos != strlen(junk) ) { |
| tst_resm(TFAIL,"strlen(junk),file pointer descrepancy 5"); |
| local_flag = FAILED; |
| } |
| /* rewind with seek and then check */ |
| if (fseeko(stream, (off_t)0, 0) != 0) { |
| tst_resm(TFAIL,"\tfseeko failed\n"); |
| tst_exit(); |
| } |
| opos=ftello(stream); |
| if (opos != 0 ) { |
| tst_resm(TFAIL,"file pointer descrepancy 6"); |
| local_flag = FAILED; |
| } |
| |
| /* read till EOF, do getc and then check ftello */ |
| while (fgets (buf, 30, stream)); |
| opos=ftello(stream); |
| (void) getc(stream); |
| opos=ftello(stream); |
| if (opos != strlen(junk) ) { |
| tst_resm(TFAIL,"strlen(junk),file pointer descrepancy 7"); |
| local_flag = FAILED; |
| } |
| fclose(stream); |
| if (local_flag == PASSED) { |
| tst_resm(TPASS, "Test passed in block1.\n"); |
| } else { |
| tst_resm(TFAIL, "Test failed in block1.\n"); |
| } |
| /*--------------------------------------------------------------------*/ |
| unlink(tempfile1); |
| } /* end for */ |
| tst_rmdir(); |
| tst_exit(); |
| return(0); |
| } |