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gss: implement gss_krb5_ccache_name()

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Correctly implement gss_krb5_ccache_name() in terms of
gss_set_sec_context_option(GSS_KRB5_CCACHE_NAME_X). The previous implementation
was a NOOP.

Note: global ccache name should really be thread-specific rather than global.

Closes #803.
This commit is contained in:
Luke Howard
2021-09-06 13:22:53 +10:00
parent 971648b71e
commit fc9f9b322a
4 changed files with 52 additions and 38 deletions
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27
lib/gssapi/krb5/ccache_name.c
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@@ -33,7 +33,7 @@
#include "gsskrb5_locl.h"
char *last_out_name;
static heim_base_atomic(char *) last_out_name; /* XXX should be thread-specific */
OM_uint32
_gsskrb5_krb5_ccache_name(OM_uint32 *minor_status,
@@ -48,24 +48,25 @@ _gsskrb5_krb5_ccache_name(OM_uint32 *minor_status,
GSSAPI_KRB5_INIT(&context);
if (out_name) {
const char *n;
const char *def_name;
if (last_out_name) {
free(last_out_name);
last_out_name = NULL;
*out_name = NULL;
def_name = krb5_cc_default_name(context);
if (def_name) {
char *s = strdup(def_name);
if (s) {
s = heim_base_exchange_pointer(&last_out_name, s);
free(s);
*out_name = last_out_name;
}
}
n = krb5_cc_default_name(context);
if (n == NULL) {
if (*out_name == NULL) {
*minor_status = ENOMEM;
return GSS_S_FAILURE;
}
last_out_name = strdup(n);
if (last_out_name == NULL) {
*minor_status = ENOMEM;
return GSS_S_FAILURE;
}
*out_name = last_out_name;
}
kret = krb5_cc_set_default_name(context, name);