2 * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
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34 #include "krb5_locl.h"
36 RCSID("$Id: keytab_memory.c,v 1.5 2001/05/14 06:14:49 assar Exp $");
38 /* memory operations -------------------------------------------- */
41 krb5_keytab_entry *entries;
45 static krb5_error_code
46 mkt_resolve(krb5_context context, const char *name, krb5_keytab id)
49 d = malloc(sizeof(*d));
51 krb5_set_error_string (context, "malloc: out of memory");
60 static krb5_error_code
61 mkt_close(krb5_context context, krb5_keytab id)
63 struct mkt_data *d = id->data;
65 for(i = 0; i < d->num_entries; i++)
66 krb5_kt_free_entry(context, &d->entries[i]);
72 static krb5_error_code
73 mkt_get_name(krb5_context context,
78 strlcpy(name, "", namesize);
82 static krb5_error_code
83 mkt_start_seq_get(krb5_context context,
92 static krb5_error_code
93 mkt_next_entry(krb5_context context,
95 krb5_keytab_entry *entry,
98 struct mkt_data *d = id->data;
99 if(c->fd >= d->num_entries)
101 return krb5_kt_copy_entry_contents(context, &d->entries[c->fd++], entry);
104 static krb5_error_code
105 mkt_end_seq_get(krb5_context context,
107 krb5_kt_cursor *cursor)
112 static krb5_error_code
113 mkt_add_entry(krb5_context context,
115 krb5_keytab_entry *entry)
117 struct mkt_data *d = id->data;
118 krb5_keytab_entry *tmp;
119 tmp = realloc(d->entries, (d->num_entries + 1) * sizeof(*d->entries));
121 krb5_set_error_string (context, "malloc: out of memory");
125 return krb5_kt_copy_entry_contents(context, entry,
126 &d->entries[d->num_entries++]);
129 static krb5_error_code
130 mkt_remove_entry(krb5_context context,
132 krb5_keytab_entry *entry)
134 struct mkt_data *d = id->data;
135 krb5_keytab_entry *e, *end;
137 /* do this backwards to minimize copying */
138 for(end = d->entries + d->num_entries, e = end - 1; e >= d->entries; e--) {
139 if(krb5_kt_compare(context, e, entry->principal,
140 entry->vno, entry->keyblock.keytype)) {
141 krb5_kt_free_entry(context, e);
142 memmove(e, e + 1, (end - e - 1) * sizeof(*e));
143 memset(end - 1, 0, sizeof(*end));
148 e = realloc(d->entries, d->num_entries * sizeof(*d->entries));
154 const krb5_kt_ops krb5_mkt_ops = {