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Annotation of capa/capa51/pProj/capaSubjective.c, revision 1.3

1.3     ! albertel    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: 
1.1       albertel   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);
1.2       albertel   30:   result=capa_malloc(len+2,1);
1.1       albertel   31:   for(i=0;i<len;i++) result[i]=toupper(source[i]);
1.2       albertel   32:   result[i]='\0';
1.1       albertel   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: }