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OS/2 Shareware BBS: 10 Tools
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10-Tools.zip
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ldapsdk.zip
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libraries
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libldap
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init.c
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2001-09-08
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/* $OpenLDAP: pkg/ldap/libraries/libldap/init.c,v 1.33.2.9 2001/09/07 21:17:03 kurt Exp $ */
/*
* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
#include <stdio.h>
#include <ac/stdlib.h>
#include <ac/socket.h>
#include <ac/string.h>
#include <ac/ctype.h>
#include <ac/time.h>
#include <limits.h>
#include "ldap-int.h"
#include "ldap_defaults.h"
struct ldapoptions ldap_int_global_options =
{ LDAP_UNINITIALIZED, LDAP_DEBUG_NONE };
#define ATTR_NONE 0
#define ATTR_BOOL 1
#define ATTR_INT 2
#define ATTR_KV 3
#define ATTR_STRING 4
#define ATTR_OPTION 5
#define ATTR_SASL 6
#define ATTR_TLS 7
struct ol_keyvalue {
const char * key;
int value;
};
static const struct ol_keyvalue deref_kv[] = {
{"never", LDAP_DEREF_NEVER},
{"searching", LDAP_DEREF_SEARCHING},
{"finding", LDAP_DEREF_FINDING},
{"always", LDAP_DEREF_ALWAYS},
{NULL, 0}
};
static const struct ol_attribute {
int useronly;
int type;
const char * name;
const void * data;
size_t offset;
} attrs[] = {
{0, ATTR_KV, "DEREF", deref_kv, /* or &deref_kv[0] */
offsetof(struct ldapoptions, ldo_deref)},
{0, ATTR_INT, "SIZELIMIT", NULL,
offsetof(struct ldapoptions, ldo_sizelimit)},
{0, ATTR_INT, "TIMELIMIT", NULL,
offsetof(struct ldapoptions, ldo_timelimit)},
{1, ATTR_STRING, "BINDDN", NULL,
offsetof(struct ldapoptions, ldo_defbinddn)},
{0, ATTR_STRING, "BASE", NULL,
offsetof(struct ldapoptions, ldo_defbase)},
{0, ATTR_INT, "PORT", NULL, /* deprecated */
offsetof(struct ldapoptions, ldo_defport)},
{0, ATTR_OPTION, "HOST", NULL, LDAP_OPT_HOST_NAME}, /* deprecated */
{0, ATTR_OPTION, "URI", NULL, LDAP_OPT_URI}, /* replaces HOST/PORT */
{0, ATTR_BOOL, "REFERRALS", NULL, LDAP_BOOL_REFERRALS},
{0, ATTR_BOOL, "RESTART", NULL, LDAP_BOOL_RESTART},
#ifdef HAVE_CYRUS_SASL
{1, ATTR_STRING, "SASL_MECH", NULL,
offsetof(struct ldapoptions, ldo_def_sasl_mech)},
{1, ATTR_STRING, "SASL_REALM", NULL,
offsetof(struct ldapoptions, ldo_def_sasl_realm)},
{1, ATTR_STRING, "SASL_AUTHCID", NULL,
offsetof(struct ldapoptions, ldo_def_sasl_authcid)},
{1, ATTR_STRING, "SASL_AUTHZID", NULL,
offsetof(struct ldapoptions, ldo_def_sasl_authzid)},
{0, ATTR_SASL, "SASL_SECPROPS", NULL, LDAP_OPT_X_SASL_SECPROPS},
#endif
#ifdef HAVE_TLS
{0, ATTR_TLS, "TLS", NULL, LDAP_OPT_X_TLS},
{1, ATTR_TLS, "TLS_CERT", NULL, LDAP_OPT_X_TLS_CERTFILE},
{1, ATTR_TLS, "TLS_KEY", NULL, LDAP_OPT_X_TLS_KEYFILE},
{0, ATTR_TLS, "TLS_CACERT", NULL, LDAP_OPT_X_TLS_CACERTFILE},
{0, ATTR_TLS, "TLS_CACERTDIR",NULL, LDAP_OPT_X_TLS_CACERTDIR},
{0, ATTR_TLS, "TLS_REQCERT", NULL, LDAP_OPT_X_TLS_REQUIRE_CERT},
{0, ATTR_TLS, "TLS_RANDFILE", NULL, LDAP_OPT_X_TLS_RANDOM_FILE},
#endif
{0, ATTR_NONE, NULL, NULL, 0}
};
#define MAX_LDAP_ATTR_LEN sizeof("TLS_CACERTDIR")
#define MAX_LDAP_ENV_PREFIX_LEN 8
static void openldap_ldap_init_w_conf(
const char *file, int userconf )
{
char linebuf[128];
FILE *fp;
int i;
char *cmd, *opt;
char *start, *end;
struct ldapoptions *gopts;
if ((gopts = LDAP_INT_GLOBAL_OPT()) == NULL) {
return; /* Could not allocate mem for global options */
}
if (file == NULL) {
/* no file name */
return;
}
Debug(LDAP_DEBUG_TRACE, "ldap_init: trying %s\n", file, 0, 0);
fp = fopen(file, "r");
if(fp == NULL) {
/* could not open file */
return;
}
Debug(LDAP_DEBUG_TRACE, "ldap_init: using %s\n", file, 0, 0);
while((start = fgets(linebuf, sizeof(linebuf), fp)) != NULL) {
/* skip lines starting with '#' */
if(*start == '#') continue;
/* trim leading white space */
while((*start != '\0') && isspace((unsigned char) *start))
start++;
/* anything left? */
if(*start == '\0') continue;
/* trim trailing white space */
end = &start[strlen(start)-1];
while(isspace((unsigned char)*end)) end--;
end[1] = '\0';
/* anything left? */
if(*start == '\0') continue;
/* parse the command */
cmd=start;
while((*start != '\0') && !isspace((unsigned char)*start)) {
start++;
}
if(*start == '\0') {
/* command has no argument */
continue;
}
*start++ = '\0';
/* we must have some whitespace to skip */
while(isspace((unsigned char)*start)) start++;
opt = start;
for(i=0; attrs[i].type != ATTR_NONE; i++) {
void *p;
if( !userconf && attrs[i].useronly ) {
continue;
}
if(strcasecmp(cmd, attrs[i].name) != 0) {
continue;
}
switch(attrs[i].type) {
case ATTR_BOOL:
if((strcasecmp(opt, "on") == 0)
|| (strcasecmp(opt, "yes") == 0)
|| (strcasecmp(opt, "true") == 0))
{
LDAP_BOOL_SET(gopts, attrs[i].offset);
} else {
LDAP_BOOL_CLR(gopts, attrs[i].offset);
}
break;
case ATTR_INT:
p = &((char *) gopts)[attrs[i].offset];
* (int*) p = atoi(opt);
break;
case ATTR_KV: {
const struct ol_keyvalue *kv;
for(kv = attrs[i].data;
kv->key != NULL;
kv++) {
if(strcasecmp(opt, kv->key) == 0) {
p = &((char *) gopts)[attrs[i].offset];
* (int*) p = kv->value;
break;
}
}
} break;
case ATTR_STRING:
p = &((char *) gopts)[attrs[i].offset];
if (* (char**) p != NULL) LDAP_FREE(* (char**) p);
* (char**) p = LDAP_STRDUP(opt);
break;
case ATTR_OPTION:
ldap_set_option( NULL, attrs[i].offset, opt );
break;
case ATTR_SASL:
#ifdef HAVE_CYRUS_SASL
ldap_int_sasl_config( gopts, attrs[i].offset, opt );
#endif
break;
case ATTR_TLS:
#ifdef HAVE_TLS
ldap_int_tls_config( NULL, attrs[i].offset, opt );
#endif
break;
}
break;
}
}
fclose(fp);
}
static void openldap_ldap_init_w_sysconf(const char *file)
{
openldap_ldap_init_w_conf( file, 0 );
}
static void openldap_ldap_init_w_userconf(const char *file)
{
char *home;
char *path = NULL;
if (file == NULL) {
/* no file name */
return;
}
home = getenv("HOME");
if (home != NULL) {
Debug(LDAP_DEBUG_TRACE, "ldap_init: HOME env is %s\n",
home, 0, 0);
path = LDAP_MALLOC(strlen(home) + strlen(file) + 3);
} else {
Debug(LDAP_DEBUG_TRACE, "ldap_init: HOME env is NULL\n",
0, 0, 0);
}
if(home != NULL && path != NULL) {
/* we assume UNIX path syntax is used... */
/* try ~/file */
sprintf(path, "%s/%s", home, file);
openldap_ldap_init_w_conf(path, 1);
/* try ~/.file */
sprintf(path, "%s/.%s", home, file);
openldap_ldap_init_w_conf(path, 1);
}
if(path != NULL) {
LDAP_FREE(path);
}
/* try file */
openldap_ldap_init_w_conf(file, 1);
}
static void openldap_ldap_init_w_env(
struct ldapoptions *gopts,
const char *prefix)
{
char buf[MAX_LDAP_ATTR_LEN+MAX_LDAP_ENV_PREFIX_LEN];
int len;
int i;
void *p;
char *value;
if (prefix == NULL) {
prefix = LDAP_ENV_PREFIX;
}
strncpy(buf, prefix, MAX_LDAP_ENV_PREFIX_LEN);
buf[MAX_LDAP_ENV_PREFIX_LEN] = '\0';
len = strlen(buf);
for(i=0; attrs[i].type != ATTR_NONE; i++) {
strcpy(&buf[len], attrs[i].name);
value = getenv(buf);
if(value == NULL) {
continue;
}
switch(attrs[i].type) {
case ATTR_BOOL:
if((strcasecmp(value, "on") == 0)
|| (strcasecmp(value, "yes") == 0)
|| (strcasecmp(value, "true") == 0))
{
LDAP_BOOL_SET(gopts, attrs[i].offset);
} else {
LDAP_BOOL_CLR(gopts, attrs[i].offset);
}
break;
case ATTR_INT:
p = &((char *) gopts)[attrs[i].offset];
* (int*) p = atoi(value);
break;
case ATTR_KV: {
const struct ol_keyvalue *kv;
for(kv = attrs[i].data;
kv->key != NULL;
kv++) {
if(strcasecmp(value, kv->key) == 0) {
p = &((char *) gopts)[attrs[i].offset];
* (int*) p = kv->value;
break;
}
}
} break;
case ATTR_STRING:
p = &((char *) gopts)[attrs[i].offset];
if (* (char**) p != NULL) LDAP_FREE(* (char**) p);
if (*value == '\0') {
* (char**) p = NULL;
} else {
* (char**) p = LDAP_STRDUP(value);
}
break;
case ATTR_OPTION:
ldap_set_option( NULL, attrs[i].offset, value );
break;
case ATTR_SASL:
#ifdef HAVE_CYRUS_SASL
ldap_int_sasl_config( gopts, attrs[i].offset, value );
#endif
break;
case ATTR_TLS:
#ifdef HAVE_TLS
ldap_int_tls_config( NULL, attrs[i].offset, value );
#endif
break;
}
}
}
/*
* Initialize the global options structure with default values.
*/
void ldap_int_initialize_global_options( struct ldapoptions *gopts, int *dbglvl )
{
if (dbglvl)
gopts->ldo_debug = *dbglvl;
else
gopts->ldo_debug = 0;
gopts->ldo_version = LDAP_VERSION2;
gopts->ldo_deref = LDAP_DEREF_NEVER;
gopts->ldo_timelimit = LDAP_NO_LIMIT;
gopts->ldo_sizelimit = LDAP_NO_LIMIT;
gopts->ldo_tm_api = (struct timeval *)NULL;
gopts->ldo_tm_net = (struct timeval *)NULL;
/* ldo_defludp is leaked, we should have an at_exit() handler
* to free this and whatever else needs to cleaned up.
*/
ldap_url_parselist(&gopts->ldo_defludp, "ldap://localhost/");
gopts->ldo_defport = LDAP_PORT;
gopts->ldo_refhoplimit = LDAP_DEFAULT_REFHOPLIMIT;
gopts->ldo_rebindproc = NULL;
LDAP_BOOL_ZERO(gopts);
LDAP_BOOL_SET(gopts, LDAP_BOOL_REFERRALS);
#ifdef HAVE_CYRUS_SASL
gopts->ldo_def_sasl_mech = NULL;
gopts->ldo_def_sasl_realm = NULL;
gopts->ldo_def_sasl_authcid = NULL;
gopts->ldo_def_sasl_authzid = NULL;
memset( &gopts->ldo_sasl_secprops,
'\0', sizeof(gopts->ldo_sasl_secprops) );
gopts->ldo_sasl_secprops.max_ssf = INT_MAX;
gopts->ldo_sasl_secprops.maxbufsize = SASL_MAX_BUFF_SIZE;
gopts->ldo_sasl_secprops.security_flags =
SASL_SEC_NOPLAINTEXT | SASL_SEC_NOANONYMOUS;
#endif
gopts->ldo_valid = LDAP_INITIALIZED;
return;
}
#if defined(LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND) \
|| defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
char * ldap_int_hostname = NULL;
#endif
void ldap_int_initialize( struct ldapoptions *gopts, int *dbglvl )
{
if ( gopts->ldo_valid == LDAP_INITIALIZED ) {
return;
}
#if defined(LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND) \
|| defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
ldap_int_hostname = ldap_pvt_get_fqdn( ldap_int_hostname );
#endif
ldap_int_utils_init();
if ( ldap_int_tblsize == 0 )
ldap_int_ip_init();
ldap_int_initialize_global_options(gopts, NULL);
if( getenv("LDAPNOINIT") != NULL ) {
return;
}
#ifdef HAVE_CYRUS_SASL
{
/* set authentication identity to current user name */
char *user = getenv("USER");
if( user == NULL ) user = getenv("USERNAME");
if( user == NULL ) user = getenv("LOGNAME");
if( user != NULL ) {
/* this value is leaked, need at_exit() handler */
gopts->ldo_def_sasl_authcid = LDAP_STRDUP( user );
}
}
#endif
openldap_ldap_init_w_sysconf(LDAP_CONF_FILE);
openldap_ldap_init_w_userconf(LDAP_USERRC_FILE);
{
char *altfile = getenv(LDAP_ENV_PREFIX "CONF");
if( altfile != NULL ) {
Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is %s\n",
LDAP_ENV_PREFIX "CONF", altfile, 0);
openldap_ldap_init_w_sysconf( altfile );
}
else
Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is NULL\n",
LDAP_ENV_PREFIX "CONF", 0, 0);
}
{
char *altfile = getenv(LDAP_ENV_PREFIX "RC");
if( altfile != NULL ) {
Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is %s\n",
LDAP_ENV_PREFIX "RC", altfile, 0);
openldap_ldap_init_w_userconf( altfile );
}
else
Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is NULL\n",
LDAP_ENV_PREFIX "RC", 0, 0);
}
openldap_ldap_init_w_env(gopts, NULL);
ldap_int_sasl_init();
}