File:  [LON-CAPA] / capa / capa51 / pProj / capaSubjective.c
Revision 1.3: download - view: text, annotated - select for diffs
Fri Jun 30 21:36:16 2000 UTC (24 years, 1 month ago) by albertel
Branches: MAIN
CVS tags: HEAD
- gave everyone the GPL header

    1: /* library to enable getting and setting subjective responses
    2:    Copyright (C) 1992-2000 Michigan State University
    3: 
    4:    The CAPA system is free software; you can redistribute it and/or
    5:    modify it under the terms of the GNU Library General Public License as
    6:    published by the Free Software Foundation; either version 2 of the
    7:    License, or (at your option) any later version.
    8: 
    9:    The CAPA system is distributed in the hope that it will be useful,
   10:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   12:    Library General Public License for more details.
   13: 
   14:    You should have received a copy of the GNU Library General Public
   15:    License along with the CAPA system; see the file COPYING.  If not,
   16:    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   17:    Boston, MA 02111-1307, USA.  */
   18: 
   19: #include "capaCommon.h"
   20: #include <sys/stat.h>
   21: #include <sys/types.h>
   22: #include <fcntl.h>
   23: #include <unistd.h>
   24: #include <ctype.h>
   25: 
   26: char* strtoupper(char* source)
   27: {
   28:   char* result;
   29:   int i,len=strlen(source);
   30:   result=capa_malloc(len+2,1);
   31:   for(i=0;i<len;i++) result[i]=toupper(source[i]);
   32:   result[i]='\0';
   33:   return result;
   34: }
   35: 
   36: int capa_set_subjective (int set,int problem,char *student_num,char* response)
   37: {
   38:   char buf[FILE_NAME_LENGTH],*upperstunum;
   39:   FILE *responsefile;
   40: 
   41:   sprintf(buf,"records/set%d",set);
   42:   if( capa_access(buf, F_OK) == -1 ) { 
   43:     if ( mkdir(buf, S_IREAD | S_IWRITE | S_IEXEC ) == -1 ) { return -1; }
   44:   }
   45: 
   46:   sprintf(buf,"records/set%d/problem%d",set,problem);
   47:   if( capa_access(buf, F_OK) == -1 ) { 
   48:     if ( mkdir(buf, S_IREAD | S_IWRITE | S_IEXEC ) == -1 ) { return -2; }
   49:   }
   50: 
   51:   upperstunum=strtoupper(student_num);
   52:   sprintf(buf,"records/set%d/problem%d/%s",set,problem,upperstunum);
   53:   if ((responsefile=fopen(buf,"w"))==NULL)  { return -3; }
   54:   
   55:   fwrite(response,strlen(response),1,responsefile);
   56:   fclose(responsefile);
   57:   return 0;
   58: }
   59: 
   60: char* capa_get_subjective (int set,int problem,char *student_num)
   61: {
   62:   char buf[FILE_NAME_LENGTH],*upperstunum,*response;
   63:   FILE *responsefile;
   64:   long length;
   65: 
   66:   upperstunum=strtoupper(student_num);
   67:   sprintf(buf,"records/set%d/problem%d/%s",set,problem,upperstunum);
   68:   if ((responsefile=fopen(buf,"r"))==NULL)  { return NULL; }
   69:   fseek(responsefile,0,SEEK_END);
   70:   length=ftell(responsefile);
   71:   rewind(responsefile);
   72:   response=capa_malloc(length+1,1);
   73:   fread(response,length,1,responsefile);
   74:   response[length]='\0';
   75:   return response;
   76: }

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