mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-27 03:20:22 +08:00
337 lines
6.6 KiB
C
337 lines
6.6 KiB
C
/*
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* Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include <ac/ctype.h>
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#include <ac/time.h>
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#include "ldap-int.h"
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#include "ldapconfig.h"
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struct ldapoptions openldap_ldap_global_options = { LDAP_DEBUG_NONE };
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#undef gopts
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#define gopts openldap_ldap_global_options
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int openldap_ldap_initialized = 0;
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#define ATTR_NONE 0
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#define ATTR_BOOL 1
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#define ATTR_INT 2
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#define ATTR_KV 3
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#define ATTR_STRING 4
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struct ol_keyvalue {
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char* key;
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int value;
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};
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static struct ol_keyvalue deref_kv[] = {
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{"never", LDAP_DEREF_NEVER},
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{"searching", LDAP_DEREF_SEARCHING},
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{"finding", LDAP_DEREF_FINDING},
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{"always", LDAP_DEREF_ALWAYS},
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{NULL, 0}
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};
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static struct ol_attribute {
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int type;
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char* name;
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void* data;
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size_t offset;
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} attrs[] = {
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{ATTR_KV, "DEREF", deref_kv, /* or &deref_kv[0] */
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offsetof(struct ldapoptions, ldo_deref)},
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{ATTR_INT, "SIZELIMIT", NULL,
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offsetof(struct ldapoptions, ldo_sizelimit)},
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{ATTR_INT, "TIMELIMIT", NULL,
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offsetof(struct ldapoptions, ldo_timelimit)},
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{ATTR_STRING, "BASE", NULL,
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offsetof(struct ldapoptions, ldo_defbase)},
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{ATTR_STRING, "HOST", NULL,
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offsetof(struct ldapoptions, ldo_defhost)},
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{ATTR_INT, "PORT", NULL,
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offsetof(struct ldapoptions, ldo_defport)},
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{ATTR_BOOL, "REFERRALS", (void *) LDAP_BOOL_REFERRALS, 0},
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{ATTR_BOOL, "RESTART", (void *) LDAP_BOOL_RESTART, 0},
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{ATTR_BOOL, "DNS", (void *) LDAP_BOOL_DNS, 0},
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{ATTR_NONE, NULL, NULL, 0}
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};
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#define MAX_LDAP_ATTR_LEN sizeof("SIZELIMIT")
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#define MAX_LDAP_ENV_PREFIX_LEN 8
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static void openldap_ldap_init_w_conf(const char *file)
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{
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char linebuf[128];
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FILE *fp;
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int i;
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char *cmd, *opt;
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char *start, *end;
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if (file == NULL) {
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/* no file name */
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return;
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}
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fp = fopen(file, "r");
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if(fp == NULL) {
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/* could not open file */
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return;
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}
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while((start = fgets(linebuf, sizeof(linebuf), fp)) != NULL) {
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/* skip lines starting with '#' */
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if(*start == '#') continue;
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/* trim leading white space */
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while((*start != '\0') && isspace((unsigned char) *start))
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start++;
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/* anything left? */
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if(*start == '\0') continue;
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/* trim trailing white space */
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end = &start[strlen(start)-1];
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while(isspace((unsigned char)*end)) end--;
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end[1] = '\0';
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/* anything left? */
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if(*start == '\0') continue;
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/* parse the command */
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cmd=start;
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while((*start != '\0') && !isspace((unsigned char)*start)) {
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start++;
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}
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if(*start == '\0') {
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/* command has no argument */
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continue;
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}
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*start++ = '\0';
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/* we must have some non-whitespace to skip */
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while(isspace((unsigned char)*start)) start++;
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opt = start;
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for(i=0; attrs[i].type != ATTR_NONE; i++) {
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void *p;
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if(strcasecmp(cmd, attrs[i].name) != 0) {
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continue;
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}
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p = &((char *) &gopts)[attrs[i].offset];
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switch(attrs[i].type) {
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case ATTR_BOOL:
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if((strcasecmp(opt, "on") == 0)
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|| (strcasecmp(opt, "yes") == 0)
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|| (strcasecmp(opt, "true") == 0))
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{
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LDAP_BOOL_SET(&gopts, (int) attrs[i].data);
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} else {
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LDAP_BOOL_CLR(&gopts, (int) attrs[i].data);
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}
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break;
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case ATTR_INT:
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* (int*) p = atoi(opt);
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break;
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case ATTR_KV: {
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struct ol_keyvalue *kv;
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for(kv = (struct ol_keyvalue *) attrs[i].data;
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kv->key != NULL;
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kv++) {
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if(strcasecmp(opt, kv->key) == 0) {
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* (int*) p = kv->value;
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break;
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}
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}
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} break;
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case ATTR_STRING:
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if (* (char**) p != NULL) free(* (char**) p);
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* (char**) p = strdup(opt);
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break;
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}
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}
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}
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}
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static void openldap_ldap_init_w_userconf(const char *file)
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{
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char *home;
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char *path;
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if (file == NULL) {
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/* no file name */
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return;
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}
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home = getenv("HOME");
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if (home != NULL) {
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path = malloc(strlen(home) + strlen(file) + 3);
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} else {
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path = malloc(strlen(file) + 3);
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}
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if(home != NULL && path != NULL) {
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/* we assume UNIX path syntax is used... */
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/* try ~/file */
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sprintf(path, "%s/%s", home, file);
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openldap_ldap_init_w_conf(path);
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/* try ~/.file */
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sprintf(path, "%s/.%s", home, file);
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openldap_ldap_init_w_conf(path);
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}
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if(path != NULL) {
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free(path);
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}
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/* try file */
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openldap_ldap_init_w_conf(file);
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}
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static void openldap_ldap_init_w_env(const char *prefix)
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{
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char buf[MAX_LDAP_ATTR_LEN+MAX_LDAP_ENV_PREFIX_LEN];
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int len;
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int i;
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void *p;
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char *value;
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if (prefix == NULL) {
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prefix = DEFAULT_LDAP_ENV_PREFIX;
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}
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strncpy(buf, prefix, MAX_LDAP_ENV_PREFIX_LEN);
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buf[MAX_LDAP_ENV_PREFIX_LEN] = '\0';
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len = strlen(buf);
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for(i=0; attrs[i].type != ATTR_NONE; i++) {
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strcpy(&buf[len], attrs[i].name);
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value = getenv(buf);
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if(value == NULL) {
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continue;
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}
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p = &((char *) &gopts)[attrs[i].offset];
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switch(attrs[i].type) {
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case ATTR_BOOL:
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if((strcasecmp(value, "on") == 0)
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|| (strcasecmp(value, "yes") == 0)
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|| (strcasecmp(value, "true") == 0))
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{
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LDAP_BOOL_SET(&gopts, (int) attrs[i].data);
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} else {
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LDAP_BOOL_CLR(&gopts, (int) attrs[i].data);
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}
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break;
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case ATTR_INT:
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* (int*) p = atoi(value);
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break;
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case ATTR_KV: {
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struct ol_keyvalue *kv;
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for(kv = (struct ol_keyvalue *) attrs[i].data;
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kv->key != NULL;
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kv++) {
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if(strcasecmp(value, kv->key) == 0) {
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* (int*) p = kv->value;
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break;
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}
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}
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} break;
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case ATTR_STRING:
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if (* (char**) p != NULL) free(* (char**) p);
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if (*value == '\0') {
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* (char**) p = NULL;
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} else {
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* (char**) p = strdup(value);
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}
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break;
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}
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}
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}
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void openldap_ldap_initialize( void )
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{
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if ( openldap_ldap_initialized ) {
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return;
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}
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ldap_pvt_init_utils();
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gopts.ldo_version = LDAP_VERSION2;
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gopts.ldo_deref = LDAP_DEREF_NEVER;
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gopts.ldo_timelimit = LDAP_NO_LIMIT;
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gopts.ldo_sizelimit = LDAP_NO_LIMIT;
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gopts.ldo_debug = 0;
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gopts.ldo_defhost = strdup("localhost");
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gopts.ldo_defport = LDAP_PORT;
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gopts.ldo_refhoplimit = LDAP_DEFAULT_REFHOPLIMIT;
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LDAP_BOOL_ZERO(&gopts);
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#if defined( LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS ) || \
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LDAP_VERSION_MAX > LDAP_VERSION2
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LDAP_BOOL_SET(&gopts, LDAP_BOOL_REFERRALS);
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#endif
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openldap_ldap_initialized = 1;
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if( getenv("LDAPNOINIT") != NULL ) {
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return;
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}
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openldap_ldap_init_w_conf(DEFAULT_LDAP_CONF_FILE);
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openldap_ldap_init_w_userconf(DEFAULT_LDAP_USERRC_FILE);
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{
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char *altfile = getenv("LDAPCONF");
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if( altfile != NULL ) {
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openldap_ldap_init_w_conf( altfile );
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}
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}
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{
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char *altfile = getenv("LDAPRC");
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if( altfile != NULL ) {
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openldap_ldap_init_w_userconf( altfile );
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}
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}
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openldap_ldap_init_w_env(NULL);
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}
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