mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-27 03:20:22 +08:00
422 lines
9.0 KiB
C
422 lines
9.0 KiB
C
/* $OpenLDAP$ */
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/*
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* Copyright (c) 1990,1994 Regents of the University of Michigan.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that this notice is preserved and that due credit is given
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* to the University of Michigan at Ann Arbor. The name of the University
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* may not be used to endorse or promote products derived from this
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* software without specific prior written permission. This software
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* is provided ``as is'' without express or implied warranty.
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/stdlib.h>
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#include <ac/ctype.h>
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#include <ac/signal.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include <ac/syslog.h>
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#include <ac/time.h>
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#include <ac/unistd.h>
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#include <ac/wait.h>
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#ifdef HAVE_SYS_RESOURCE_H
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#include <sys/resource.h>
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#endif
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#include <ldap.h>
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#include <disptmpl.h>
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#include "ldap_defaults.h"
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int dosyslog = 1;
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char *ldaphost = NULL;
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int ldapport = 0;
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char *base = NULL;
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int deref;
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char *filterfile = FILTERFILE;
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char *templatefile = TEMPLATEFILE;
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int rdncount = FINGER_RDNCOUNT;
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static void do_query(void);
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static void do_search(LDAP *ld, char *buf);
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static void do_read(LDAP *ld, LDAPMessage *e);
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static void
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usage( char *name )
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{
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fprintf( stderr, "usage: %s [-l] [-x ldaphost] [-p ldapport] [-b searchbase] [-f filterfile] [-t templatefile] [-c rdncount]\r\n", name );
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exit( EXIT_FAILURE );
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}
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int
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main( int argc, char **argv )
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{
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int i;
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char *myname;
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struct hostent *hp;
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struct sockaddr_in peername;
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socklen_t peernamelen;
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int interactive = 0;
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deref = FINGER_DEREF;
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while ( (i = getopt( argc, argv, "f:ilp:t:x:p:b:c:" )) != EOF ) {
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switch( i ) {
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case 'f': /* ldap filter file */
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filterfile = strdup( optarg );
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break;
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case 'i': /* interactive */
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interactive = 1;
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break;
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case 'l': /* don't do syslogging */
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dosyslog = 0;
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break;
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case 't': /* ldap template file */
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templatefile = strdup( optarg );
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break;
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case 'x': /* specify ldap host */
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ldaphost = strdup( optarg );
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break;
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case 'p': /* specify ldap port */
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ldapport = atoi( optarg );
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break;
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case 'b': /* specify search base */
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base = strdup( optarg );
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break;
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case 'c': /* specify number of DN components to show */
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rdncount = atoi( optarg );
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break;
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default:
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usage( argv[0] );
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}
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}
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if ( !interactive ) {
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peernamelen = sizeof(peername);
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if ( getpeername( 0, (struct sockaddr *)&peername,
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&peernamelen ) != 0 ) {
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perror( "getpeername" );
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exit( EXIT_FAILURE );
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}
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}
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#ifdef FINGER_BANNER
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if ( FINGER_BANNER != NULL && strcmp( FINGER_BANNER, "" ) != 0 ) {
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printf( FINGER_BANNER );
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fflush( stdout );
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}
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#endif
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if ( (myname = strrchr( argv[0], *LDAP_DIRSEP )) == NULL )
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myname = strdup( argv[0] );
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else
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myname = strdup( myname + 1 );
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#ifdef SIGPIPE
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(void) SIGNAL( SIGPIPE, SIG_IGN );
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#endif
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if ( dosyslog ) {
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#ifdef LOG_LOCAL4
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openlog( myname, OPENLOG_OPTIONS, LOG_LOCAL4 );
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#elif LOG_DEBUG
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openlog( myname, OPENLOG_OPTIONS );
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#endif
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}
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if ( dosyslog && !interactive ) {
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hp = gethostbyaddr( (char *) &peername.sin_addr,
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sizeof(peername.sin_addr), AF_INET );
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syslog( LOG_INFO, "connection from %s (%s)",
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(hp == NULL) ? "unknown" : hp->h_name,
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inet_ntoa( peername.sin_addr ) );
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}
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do_query();
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return( 0 );
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}
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static void
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do_query( void )
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{
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char buf[256];
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int len, rc, tblsize;
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struct timeval timeout;
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fd_set readfds;
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LDAP *ld;
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if ( (ld = ldap_init( ldaphost, ldapport )) == NULL ) {
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fprintf( stderr, FINGER_UNAVAILABLE );
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perror( "ldap_init" );
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exit( EXIT_FAILURE );
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}
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{
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int limit = FINGER_SIZELIMIT;
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ldap_set_option(ld, LDAP_OPT_SIZELIMIT, &limit);
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}
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ldap_set_option(ld, LDAP_OPT_DEREF, &deref);
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if ( ldap_simple_bind_s( ld, NULL, NULL )
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!= LDAP_SUCCESS )
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{
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fprintf( stderr, FINGER_UNAVAILABLE );
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ldap_perror( ld, "ldap_simple_bind_s" );
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exit( EXIT_FAILURE );
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}
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#ifdef HAVE_SYSCONF
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tblsize = sysconf( _SC_OPEN_MAX );
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#elif HAVE_GETDTABLESIZE
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tblsize = getdtablesize();
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#else
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tblsize = FD_SETSIZE;
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#endif
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#ifdef FD_SETSIZE
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if (tblsize > FD_SETSIZE) {
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tblsize = FD_SETSIZE;
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}
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#endif /* FD_SETSIZE*/
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timeout.tv_sec = FINGER_TIMEOUT;
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timeout.tv_usec = 0;
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FD_ZERO( &readfds );
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FD_SET( fileno( stdin ), &readfds );
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if ( (rc = select( tblsize, &readfds, 0, 0, &timeout )) <= 0 ) {
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if ( rc < 0 )
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perror( "select" );
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else
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fprintf( stderr, "connection timed out on input\r\n" );
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exit( EXIT_FAILURE );
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}
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if ( fgets( buf, sizeof(buf), stdin ) == NULL )
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exit( EXIT_FAILURE );
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len = strlen( buf );
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/* strip off \r \n */
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if ( buf[len - 1] == '\n' ) {
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buf[len - 1] = '\0';
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len--;
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}
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if ( buf[len - 1] == '\r' ) {
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buf[len - 1] = '\0';
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len--;
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}
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if ( len == 0 ) {
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printf( "No campus-wide login information available. Info for this machine only:\r\n" );
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fflush( stdout );
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execl( FINGER_CMD, FINGER_CMD, NULL );
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} else {
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char *p;
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/* skip and ignore stinking /w */
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if ( strncmp( buf, "/W ", 2 ) == 0 ) {
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p = buf + 2;
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} else {
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p = buf;
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}
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for ( ; *p && isspace( (unsigned char) *p ); p++ )
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; /* NULL */
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do_search( ld, p );
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}
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}
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static void
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spaces2dots( char *s )
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{
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for ( ; *s; s++ ) {
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if ( *s == ' ' ) {
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*s = '.';
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}
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}
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}
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static void
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do_search( LDAP *ld, char *buf )
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{
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char *dn, *rdn;
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char **title;
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int rc = 0, matches = 0, i;
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struct timeval tv;
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LDAPFiltDesc *fd;
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LDAPFiltInfo *fi = NULL;
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LDAPMessage *result, *e;
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static char *attrs[] = { "cn", "title", "objectClass", "joinable",
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#ifdef FINGER_SORT_ATTR
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FINGER_SORT_ATTR,
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#endif
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0 };
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if ( (fd = ldap_init_getfilter( filterfile ))
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== NULL ) {
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fprintf( stderr, "Cannot open filter file (%s)\n",
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filterfile );
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exit( EXIT_FAILURE );
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}
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for ( fi = ldap_getfirstfilter( fd, "finger", buf );
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fi != NULL;
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fi = ldap_getnextfilter( fd ) )
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{
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tv.tv_sec = FINGER_TIMEOUT;
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tv.tv_usec = 0;
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if ( (rc = ldap_search_st( ld, base, LDAP_SCOPE_SUBTREE,
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fi->lfi_filter, attrs, 0, &tv, &result ))
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!= LDAP_SUCCESS && rc != LDAP_SIZELIMIT_EXCEEDED
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&& rc != LDAP_TIMELIMIT_EXCEEDED )
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{
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fprintf( stderr, FINGER_UNAVAILABLE );
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ldap_perror( ld, "ldap_search_st" );
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exit( EXIT_FAILURE );
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}
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if ( (matches = ldap_count_entries( ld, result )) != 0 )
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break;
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ldap_msgfree( result );
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result = NULL;
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}
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if ( rc == LDAP_SIZELIMIT_EXCEEDED ) {
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printf( "(Partial results - a size limit was exceeded)\r\n" );
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} else if ( rc == LDAP_TIMELIMIT_EXCEEDED ) {
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printf( "(Partial results - a time limit was exceeded)\r\n" );
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}
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if ( matches == 0 ) {
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printf( FINGER_NOMATCH );
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fflush( stdout );
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} else if ( matches < 0 ) {
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fprintf( stderr, "error return from ldap_count_entries\r\n" );
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exit( EXIT_FAILURE );
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} else if ( matches <= FINGER_LISTLIMIT ) {
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printf( "%d %s match%s found for \"%s\":\r\n", matches,
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fi->lfi_desc, matches > 1 ? "es" : "", buf );
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fflush( stdout );
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for ( e = ldap_first_entry( ld, result ); e != NULL; ) {
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do_read( ld, e );
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e = ldap_next_entry( ld, e );
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if ( e != NULL ) {
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printf( "--------------------\r\n" );
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}
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}
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} else {
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printf( "%d %s matches for \"%s\":\r\n", matches,
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fi->lfi_desc, buf );
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fflush( stdout );
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#ifdef FINGER_SORT_ATTR
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ldap_sort_entries( ld, &result, FINGER_SORT_ATTR, strcasecmp );
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#endif
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for ( e = ldap_first_entry( ld, result ); e != NULL;
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e = ldap_next_entry( ld, e ) ) {
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char *p;
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dn = ldap_get_dn( ld, e );
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rdn = dn;
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if ( (p = strchr( dn, ',' )) != NULL )
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*p = '\0';
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while ( *rdn && *rdn != '=' )
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rdn++;
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if ( *rdn )
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rdn++;
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/* hack attack */
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for ( i = 0; buf[i] != '\0'; i++ ) {
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if ( buf[i] == '.' || buf[i] == '_' )
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buf[i] = ' ';
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}
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if ( strcasecmp( rdn, buf ) == 0 ) {
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char **cn;
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int i, last;
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cn = ldap_get_values( ld, e, "cn" );
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for ( i = 0; cn[i] != NULL; i++ ) {
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last = strlen( cn[i] ) - 1;
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if (isdigit((unsigned char) cn[i][last])) {
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rdn = strdup( cn[i] );
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break;
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}
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}
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}
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title = ldap_get_values( ld, e, "title" );
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spaces2dots( rdn );
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printf( " %-20s %s\r\n", rdn,
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title ? title[0] : "" );
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if ( title != NULL ) {
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for ( i = 1; title[i] != NULL; i++ )
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printf( " %-20s %s\r\n", "",
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title[i] );
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}
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fflush( stdout );
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if ( title != NULL )
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ldap_value_free( title );
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free( dn );
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}
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}
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if ( result != NULL ) {
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ldap_msgfree( result );
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}
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ldap_unbind( ld );
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}
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static int
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entry2textwrite( void *fp, char *buf, ber_len_t len )
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{
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return( fwrite( buf, len, 1, (FILE *)fp ) == 0 ? -1 : len );
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}
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static void
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do_read( LDAP *ld, LDAPMessage *e )
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{
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static struct ldap_disptmpl *tmpllist;
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static char *defattrs[] = { "mail", NULL };
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static char *mailvals[] = FINGER_NOEMAIL;
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static char **defvals[] = { mailvals, NULL };
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ldap_init_templates( templatefile, &tmpllist );
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if ( ldap_entry2text_search( ld, NULL, base, e, tmpllist, defattrs,
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defvals, entry2textwrite, (void *)stdout, "\r\n", rdncount,
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LDAP_DISP_OPT_DOSEARCHACTIONS ) != LDAP_SUCCESS ) {
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ldap_perror( ld, "ldap_entry2text_search" );
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exit( EXIT_FAILURE );
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}
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if ( tmpllist != NULL ) {
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ldap_free_templates( tmpllist );
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}
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}
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