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10 reyssat 1
/*    Copyright (C) 1998-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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 */
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/* daemon option processing */
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#include "wimslogd.h"
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char opt_class[MAX_CLASSLEN+1];
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char opt_module[MAX_FNAME+1];
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char opt_session[MAX_CLASSLEN+1];
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char opt_user[MAX_FNAME+1];
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/* returns -1 if error */
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int options(void)
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{
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  int i;
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  char c, *p1, *p2, *p3;
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  opt_class[0]=opt_module[0]=opt_session[0]=opt_user[0]=0;
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  for(i=0, p1=find_word_start(textptr); *p1=='-'; p1=find_word_start(p2),i++) {
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    p1++; c=*p1++; p1=find_word_start(p1);
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    p2=find_word_end(p1); if(*p2) *p2++=0;
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    switch(c) {
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      case 'c': {                  /* class */
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        if(cwdtype!=dir_home) {
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          sockerror(2,"option_conflict"); return -1;
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        }
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        if(strlen(p1)>=MAX_CLASSLEN || !myisdigit(*p1) || strstr(p1,"..")!=NULL) {
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          sockerror(2,"illegal_fname %s",p1);
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          return -1;
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        }
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        (void)chdir(classd); if(chdir(p1)<0) {
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          sockerror(2,"bad_class %s",p1);
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          return -1;
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        }
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        mystrncpy(opt_class,p1,sizeof(opt_class));
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        cwdtype=dir_class; break;
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      }
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      case 'm': {                  /* module */
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        if(cwdtype!=dir_home) {
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          sockerror(2,"option_conflict"); return -1;
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        }
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        if(strlen(p1)>MAX_FNAME || *p1=='/' || strstr(p1,"..")!=NULL) {
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          sockerror(2,"illegal_fname %s",p1);
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          return -1;
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        }
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        (void)chdir(modd); if(chdir(p1)<0) {
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          sockerror(2,"bad_module:%s",p1);
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          return -1;
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        }
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        mystrncpy(opt_module,p1,sizeof(opt_module));
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        cwdtype=dir_module; break;
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      }
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      case 's': {                  /* session */
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        if(cwdtype!=dir_home) {
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          sockerror(2,"option_conflict"); return -1;
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        }
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        if(strlen(p1)>=MAX_CLASSLEN || *p1=='/' || strstr(p1,"..")!=NULL) {
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          sockerror(2,"illegal_fname:%s",p1);
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          return -1;
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        }
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        (void)chdir(sesd); if(chdir(p1)<0) {
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          sockerror(2,"bad_session:%s",p1);
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          return -1;
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        }
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        mystrncpy(opt_session,p1,sizeof(opt_session));
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        cwdtype=dir_session; break;
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      }
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      case 'u': {                  /* user definition */
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        if(strchr(p1,'/')!=NULL) {
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          sockerror(2,"illegal_fname %s",p1);
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          return -1;
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        }
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        mystrncpy(opt_user,p1,sizeof(opt_user));
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        for(p3=strchr(opt_user,'.'); p3!=NULL; p3=strchr(p3,'.')) *p3++='@';
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        break;
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      }
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      default: {
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        sockerror(2,"bad_option"); return -1;
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      }
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    }
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  }
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  textptr=p1; return i;
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}