1/* writerec.c: The __opiewriterec() library function.
2
3%%% copyright-cmetz-96
4This software is Copyright 1996-2001 by Craig Metz, All Rights Reserved.
5The Inner Net License Version 3 applies to this software.
6You should have received a copy of the license with this software. If
7you didn't get a copy, you may request one from <license@inner.net>.
8
9	History:
10
11	Modified by cmetz for OPIE 2.4. Check that seed and sequence number are
12		valid.
13	Modified by cmetz for OPIE 2.31. Removed active attack protection
14		support. Fixed passwd bug.
15	Created by cmetz for OPIE 2.3 from passwd.c.
16
17$FreeBSD$
18*/
19#include "opie_cfg.h"
20
21#include <stdio.h>
22#if TM_IN_SYS_TIME
23#include <sys/time.h>
24#else /* TM_IN_SYS_TIME */
25#include <time.h>
26#endif /* TM_IN_SYS_TIME */
27#include <sys/types.h>
28#if HAVE_UNISTD_H
29#include <unistd.h>
30#endif /* HAVE_UNISTD_H */
31#if HAVE_STRING_H
32#include <string.h>
33#endif /* HAVE_STRING_H */
34#if HAVE_STDLIB_H
35#include <stdlib.h>
36#endif /* HAVE_STDLIB_H */
37#include <ctype.h>
38#include "opie.h"
39
40char *__opienone = "****************";
41
42int __opiewriterec FUNCTION((opie), struct opie *opie)
43{
44  char buf[17], buf2[64];
45  time_t now;
46  FILE *f, *f2 = NULL;
47  int i = 0;
48  char *c;
49
50  time(&now);
51  if (strftime(buf2, sizeof(buf2), " %b %d,%Y %T", localtime(&now)) < 1)
52    return -1;
53
54  if (!(opie->opie_flags & __OPIE_FLAGS_READ)) {
55    struct opie opie2;
56    i = opielookup(&opie2, opie->opie_principal);
57    opie->opie_flags = opie2.opie_flags;
58    opie->opie_recstart = opie2.opie_recstart;
59  }
60
61  for (c = opie->opie_seed; *c; c++)
62    if (!isalnum(*c))
63      return -1;
64
65  if ((opie->opie_n < 0) || (opie->opie_n > 9999))
66      return -1;
67
68  switch(i) {
69  case 0:
70    if (!(f = __opieopen(KEY_FILE, 1, 0600)))
71      return -1;
72    if (fseek(f, opie->opie_recstart, SEEK_SET))
73      return -1;
74    break;
75  case 1:
76    if (!(f = __opieopen(KEY_FILE, 2, 0600)))
77      return -1;
78    break;
79  default:
80    return -1;
81  }
82
83  if (fprintf(f, "%s %04d %-16s %s %-21s\n", opie->opie_principal, opie->opie_n, opie->opie_seed, opie->opie_val ? opie->opie_val : __opienone, buf2) < 1)
84    return -1;
85
86  fclose(f);
87
88  return 0;
89}
90