oysteikt/heimdal
0
0
Fork 0
Code Issues 5 Pull Requests Releases Activity

Add _krb5_expand_default_cc_name that expand variables in the default

Browse Source 
cc name. Supported variables now are: ${time},${uid} and ${null}


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@14109 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2004-08-11 21:42:34 +00:00
parent 71ddb66f10
commit 92b867f617
1 changed files with 81 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

86
lib/krb5/cache.c
View File

@@ -189,6 +189,75 @@ krb5_cc_get_ops(krb5_context context, krb5_ccache id)
return id->ops;
}
/*
* Expand variables in `str' into `res'
*/
krb5_error_code
_krb5_expand_default_cc_name(krb5_context context, const char *str, char **res)
{
size_t tlen, len = 0;
char *tmp, *tmp2, *append;
*res = NULL;
while (str && *str) {
tmp = strstr(str, "${");
if (tmp && tmp != str) {
append = strndup(str, tmp - str);
str = tmp;
} else if (tmp) {
tmp2 = strchr(tmp, '}');
if (tmp2 == NULL) {
free(*res);
*res = NULL;
krb5_set_error_string(context, "variable missing }");
return KRB5_CONFIG_BADFORMAT;
}
if (strncasecmp(tmp, "${uid}", 6) == 0)
asprintf(&append, "%u", (unsigned)getuid());
else if (strncasecmp(tmp, "${time}", 7) == 0)
asprintf(&append, "%u", (unsigned)time(NULL));
else if (strncasecmp(tmp, "${null}", 7) == 0)
append = strdup("");
else {
free(*res);
*res = NULL;
krb5_set_error_string(context,
"expand default cache unknown "
"variable \"%.*s\"",
(int)(tmp2 - tmp) - 2, tmp + 2);
return KRB5_CONFIG_BADFORMAT;
}
if (append == NULL) {
free(*res);
res = NULL;
krb5_set_error_string(context, "malloc - out of memory");
return ENOMEM;
}
str = tmp2 + 1;
} else {
append = (char *)str;
str = NULL;
}
tlen = strlen(append);
tmp = realloc(*res, len + tlen + 1);
if (tmp == NULL) {
free(*res);
*res = NULL;
krb5_set_error_string(context, "malloc - out of memory");
return ENOMEM;
}
*res = tmp;
memcpy(*res + len, append, tlen + 1);
len = len + tlen;
if (str)
free(append);
}
return 0;
}
/*
* Set the default cc name for `context' to `name'.
*/
@@ -202,14 +271,21 @@ krb5_cc_set_default_name(krb5_context context, const char *name)
if (name == NULL) {
const char *e = NULL;
if(!issuid())
if(!issuid()) {
e = getenv("KRB5CCNAME");
if (e == NULL)
if (e)
p = strdup(e);
}
if (e == NULL) {
e = krb5_config_get_string(context, NULL, "libdefaults",
"default_cc_name", NULL);
if (e)
p = strdup(e);
else
if (e) {
ret = _krb5_expand_default_cc_name(context, e, &p);
if (ret)
return ret;
}
}
if (e == NULL)
asprintf(&p,"FILE:/tmp/krb5cc_%u", (unsigned)getuid());
} else
p = strdup(name);