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- updating GPL notices

    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:    As a special exception, you have permission to link this program
   20:    with the TtH/TtM library and distribute executables, as long as you
   21:    follow the requirements of the GNU GPL in regard to all of the
   22:    software in the executable aside from TtH/TtM.
   23: */
   24: 
   25: 
   26: #include "capaCommon.h"
   27: #include <sys/stat.h>
   28: #include <sys/types.h>
   29: #include <fcntl.h>
   30: #include <unistd.h>
   31: #include <ctype.h>
   32: 
   33: char* strtoupper(char* source)
   34: {
   35:   char* result;
   36:   int i,len=strlen(source);
   37:   result=capa_malloc(len+2,1);
   38:   for(i=0;i<len;i++) result[i]=toupper(source[i]);
   39:   result[i]='\0';
   40:   return result;
   41: }
   42: 
   43: int capa_set_subjective (int set,int problem,char *student_num,char* response)
   44: {
   45:   char buf[FILE_NAME_LENGTH],*upperstunum;
   46:   FILE *responsefile;
   47: 
   48:   sprintf(buf,"records/set%d",set);
   49:   if( capa_access(buf, F_OK) == -1 ) { 
   50:     if ( mkdir(buf, S_IREAD | S_IWRITE | S_IEXEC ) == -1 ) { return -1; }
   51:   }
   52: 
   53:   sprintf(buf,"records/set%d/problem%d",set,problem);
   54:   if( capa_access(buf, F_OK) == -1 ) { 
   55:     if ( mkdir(buf, S_IREAD | S_IWRITE | S_IEXEC ) == -1 ) { return -2; }
   56:   }
   57: 
   58:   upperstunum=strtoupper(student_num);
   59:   sprintf(buf,"records/set%d/problem%d/%s",set,problem,upperstunum);
   60:   if ((responsefile=fopen(buf,"w"))==NULL)  { return -3; }
   61:   
   62:   fwrite(response,strlen(response),1,responsefile);
   63:   fclose(responsefile);
   64:   return 0;
   65: }
   66: 
   67: char* capa_get_subjective (int set,int problem,char *student_num)
   68: {
   69:   char buf[FILE_NAME_LENGTH],*upperstunum,*response;
   70:   FILE *responsefile;
   71:   long length;
   72: 
   73:   upperstunum=strtoupper(student_num);
   74:   sprintf(buf,"records/set%d/problem%d/%s",set,problem,upperstunum);
   75:   if ((responsefile=fopen(buf,"r"))==NULL)  { return NULL; }
   76:   fseek(responsefile,0,SEEK_END);
   77:   length=ftell(responsefile);
   78:   rewind(responsefile);
   79:   response=capa_malloc(length+1,1);
   80:   fread(response,length,1,responsefile);
   81:   response[length]='\0';
   82:   return response;
   83: }