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/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* File for ldaptool routines for SASL
*/
#include <ldap.h>
#include "ldaptool-sasl.h"
#ifdef SOLARIS_LDAP_CMD
#include <sasl/sasl.h>
#include <locale.h>
#include "ldaptool.h"
#else
#include <sasl.h>
#endif /* SOLARIS_LDAP_CMD */
#include <stdio.h>
#ifndef SOLARIS_LDAP_CMD
#define gettext(s) s
#endif
#ifdef HAVE_SASL_OPTIONS
#define SASL_PROMPT "SASL"
typedef struct {
char *mech;
char *authid;
char *username;
char *passwd;
char *realm;
} ldaptoolSASLdefaults;
static int get_default(ldaptoolSASLdefaults *defaults, sasl_interact_t *interact);
static int get_new_value(sasl_interact_t *interact, unsigned flags);
void *
ldaptool_set_sasl_defaults ( LDAP *ld, char *mech, char *authid, char *username,
char *passwd, char *realm )
{
ldaptoolSASLdefaults *defaults;
if ((defaults = calloc(sizeof(defaults[0]), 1)) == NULL)
return NULL;
if (mech)
defaults->mech = mech;
else
ldap_get_option(ld, LDAP_OPT_X_SASL_MECH, &defaults->mech);
if (authid)
defaults->authid = authid;
else
ldap_get_option(ld, LDAP_OPT_X_SASL_AUTHCID, &defaults->authid);
if (username)
defaults->username = username;
else
ldap_get_option(ld, LDAP_OPT_X_SASL_AUTHZID, &defaults->username);
defaults->passwd = passwd;
if (realm)
defaults->realm = realm;
else
ldap_get_option(ld, LDAP_OPT_X_SASL_REALM, &defaults->realm);
return defaults;
}
int
ldaptool_sasl_interact( LDAP *ld, unsigned flags, void *defaults, void *prompts ) {
sasl_interact_t *interact;
ldaptoolSASLdefaults *sasldefaults = defaults;
int rc;
if (prompts == NULL || flags != LDAP_SASL_INTERACTIVE)
return (LDAP_PARAM_ERROR);
for (interact = prompts; interact->id != SASL_CB_LIST_END; interact++) {
/* Obtain the default value */
if ((rc = get_default(sasldefaults, interact)) != LDAP_SUCCESS)
return (rc);
/* If no default, get the new value from stdin */
if (interact->result == NULL) {
if ((rc = get_new_value(interact, flags)) != LDAP_SUCCESS)
return (rc);
}
}
return (LDAP_SUCCESS);
}
static int
get_default(ldaptoolSASLdefaults *defaults, sasl_interact_t *interact) {
const char *defvalue = interact->defresult;
if (defaults != NULL) {
switch( interact->id ) {
case SASL_CB_AUTHNAME:
defvalue = defaults->authid;
break;
case SASL_CB_USER:
defvalue = defaults->username;
break;
case SASL_CB_PASS:
defvalue = defaults->passwd;
break;
case SASL_CB_GETREALM:
defvalue = defaults->realm;
break;
}
}
if (defvalue != NULL) {
interact->result = (char *)malloc(strlen(defvalue)+1);
if ((char *)interact->result != NULL) {
strcpy((char *)interact->result,defvalue);
interact->len = strlen((char *)(interact->result));
}
/* Clear passwd */
if (interact->id == SASL_CB_PASS && defaults != NULL) {
/* At this point defaults->passwd is not NULL */
memset( defaults->passwd, '\0', strlen(defaults->passwd));
}
if ((char *)interact->result == NULL) {
return (LDAP_NO_MEMORY);
}
}
return (LDAP_SUCCESS);
}
static int
get_new_value(sasl_interact_t *interact, unsigned flags) {
char *newvalue, str[1024];
int len;
#ifdef SOLARIS_LDAP_CMD
char *tmpstr;
#endif
if (interact->id == SASL_CB_ECHOPROMPT || interact->id == SASL_CB_NOECHOPROMPT) {
if (interact->challenge)
fprintf(stderr, gettext("Challenge:%s\n"), interact->challenge);
}
#ifdef SOLARIS_LDAP_CMD
tmpstr = ldaptool_UTF82local(interact->prompt);
snprintf(str, sizeof(str), "%s:", tmpstr?tmpstr:SASL_PROMPT);
if (tmpstr != NULL)
free(tmpstr);
#else
#ifdef HAVE_SNPRINTF
snprintf(str, sizeof(str), "%s:", interact->prompt?interact->prompt:SASL_PROMPT);
#else
sprintf(str, "%s:", interact->prompt?interact->prompt:SASL_PROMPT);
#endif
#endif /* SOLARIS_LDAP_CMD */
/* Get the new value */
if (interact->id == SASL_CB_PASS || interact->id == SASL_CB_NOECHOPROMPT) {
#if defined(_WIN32)
char pbuf[257];
fputs(str,stdout);
fflush(stdout);
if (fgets(pbuf,256,stdin) == NULL) {
newvalue = NULL;
} else {
char *tmp;
tmp = strchr(pbuf,'\n');
if (tmp) *tmp = '\0';
tmp = strchr(pbuf,'\r');
if (tmp) *tmp = '\0';
newvalue = strdup(pbuf);
}
if ( newvalue == NULL) {
#else
#if defined(SOLARIS)
if ((newvalue = (char *)getpassphrase(str)) == NULL) {
#else
if ((newvalue = (char *)getpass(str)) == NULL) {
#endif
#endif
return (LDAP_UNAVAILABLE);
}
len = strlen(newvalue);
} else {
fputs(str, stderr);
if ((newvalue = fgets(str, sizeof(str), stdin)) == NULL)
return (LDAP_UNAVAILABLE);
len = strlen(str);
if (len > 0 && str[len - 1] == '\n')
str[len - 1] = 0;
}
interact->result = (char *) strdup(newvalue);
memset(newvalue, '\0', len);
if (interact->result == NULL)
return (LDAP_NO_MEMORY);
interact->len = len;
return (LDAP_SUCCESS);
}
#endif /* HAVE_SASL_OPTIONS */
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