kdc/v4_dump.c

   1 /*
   2  * Copyright (c) 2000 - 2001, 2003 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "hprop.h"
  35
  36 static time_t
  37 time_parse(const char *cp)
  38 {
  39     char wbuf[5];
  40     struct tm tp;
  41     int local;
  42
  43     memset(&tp, 0, sizeof(tp)); /* clear out the struct */
  44
  45     /* new format is YYYYMMDDHHMM UTC,
  46        old format is YYMMDDHHMM local time */
  47     if (strlen(cp) > 10) {              /* new format */
  48         strlcpy(wbuf, cp, sizeof(wbuf));
  49         tp.tm_year = atoi(wbuf) - 1900;
  50         cp += 4;
  51         local = 0;
  52     } else {
  53         wbuf[0] = *cp++;
  54         wbuf[1] = *cp++;
  55         wbuf[2] = '\0';
  56         tp.tm_year = atoi(wbuf);
  57         if(tp.tm_year < 38)
  58             tp.tm_year += 100;
  59         local = 1;
  60     }
  61
  62     wbuf[0] = *cp++;
  63     wbuf[1] = *cp++;
  64     wbuf[2] = 0;
  65     tp.tm_mon = atoi(wbuf) - 1;
  66
  67     wbuf[0] = *cp++;
  68     wbuf[1] = *cp++;
  69     tp.tm_mday = atoi(wbuf);
  70
  71     wbuf[0] = *cp++;
  72     wbuf[1] = *cp++;
  73     tp.tm_hour = atoi(wbuf);
  74
  75     wbuf[0] = *cp++;
  76     wbuf[1] = *cp++;
  77     tp.tm_min = atoi(wbuf);
  78
  79     return(tm2time(tp, local));
  80 }
  81
  82 /* convert a version 4 dump file */
  83 int
  84 v4_prop_dump(void *arg, const char *file)
  85 {
  86     char buf [1024];
  87     FILE *f;
  88     int lineno = 0;
  89
  90     f = fopen(file, "r");
  91     if(f == NULL)
  92         return errno;
  93
  94     while(fgets(buf, sizeof(buf), f)) {
  95         int ret;
  96         unsigned long key[2]; /* yes, long */
  97         char exp_date[64], mod_date[64];
  98         struct v4_principal pr;
  99         int attributes;
 100
 101         memset(&pr, 0, sizeof(pr));
 102         errno = 0;
 103         lineno++;
 104         ret = sscanf(buf, "%63s %63s %d %d %d %d %lx %lx %63s %63s %63s %63s",
 105                      pr.name, pr.instance,
 106                      &pr.max_life, &pr.mkvno, &pr.kvno,
 107                      &attributes,
 108                      &key[0], &key[1],
 109                      exp_date, mod_date,
 110                      pr.mod_name, pr.mod_instance);
 111         if(ret != 12){
 112             warnx("Line %d malformed (ignored)", lineno);
 113             continue;
 114         }
 115         if(attributes != 0) {
 116             warnx("Line %d (%s.%s) has non-zero attributes - skipping",
 117                   lineno, pr.name, pr.instance);
 118             continue;
 119         }
 120         pr.key[0] = (key[0] >> 24) & 0xff;
 121         pr.key[1] = (key[0] >> 16) & 0xff;
 122         pr.key[2] = (key[0] >> 8) & 0xff;
 123         pr.key[3] = (key[0] >> 0) & 0xff;
 124         pr.key[4] = (key[1] >> 24) & 0xff;
 125         pr.key[5] = (key[1] >> 16) & 0xff;
 126         pr.key[6] = (key[1] >> 8) & 0xff;
 127         pr.key[7] = (key[1] >> 0) & 0xff;
 128         pr.exp_date = time_parse(exp_date);
 129         pr.mod_date = time_parse(mod_date);
 130         if (pr.instance[0] == '*')
 131             pr.instance[0] = '\0';
 132         if (pr.mod_name[0] == '*')
 133             pr.mod_name[0] = '\0';
 134         if (pr.mod_instance[0] == '*')
 135             pr.mod_instance[0] = '\0';
 136         v4_prop(arg, &pr);
 137         memset(&pr, 0, sizeof(pr));
 138     }
 139     fclose(f);
 140     return 0;
 141 }