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Annotation of capa/capa51/pProj/capaSubjective.c, revision 1.4

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,
1.4     ! albertel   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: 
1.3       albertel   25: 
1.1       albertel   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);
1.2       albertel   37:   result=capa_malloc(len+2,1);
1.1       albertel   38:   for(i=0;i<len;i++) result[i]=toupper(source[i]);
1.2       albertel   39:   result[i]='\0';
1.1       albertel   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: }