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openldap/clients/gopher/go500gw.c

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/*
* Copyright (c) 1990 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of Michigan at Ann Arbor. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/stdlib.h>
#include <ac/ctype.h>
#include <ac/signal.h>
#include <ac/socket.h>
#include <ac/string.h>
#include <ac/syslog.h>
#include <ac/time.h>
#include <ac/unistd.h>
#include <ac/wait.h>
#include <ac/setproctitle.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
#include "lber.h"
#include "ldap.h"
#define ldap_debug debug
#include "ldap_log.h"
#include "lutil.h"
#include "disptmpl.h"
#include "ldap_defaults.h"
int debug;
int ldap_syslog;
int ldap_syslog_level;
int dosyslog;
int inetd;
int dtblsize;
char *ldaphost = NULL;
int ldapport = 0;
int searchaliases = 1;
char *helpfile = GO500GW_HELPFILE;
char *filterfile = FILTERFILE;
char *templatefile = TEMPLATEFILE;
char *friendlyfile = FRIENDLYFILE;
int rdncount = GO500GW_RDNCOUNT;
static void usage ( char *name );
static int set_socket (int port);
static RETSIGTYPE wait4child(int sig);
static void do_queries (int s);
static char *pick_oc ( char **oclist );
static int isnonleaf ( LDAP *ld, char **oclist, char *dn );
static void do_menu (LDAP *ld, FILE *fp, char *dn);
static void do_list (LDAP *ld, FILE *fp, char *dn);
static int isoc ( char **ocl, char *oc );
static int make_scope ( LDAP *ld, char *dn );
static void do_search (LDAP *ld, FILE *fp, char *query);
static int entry2textwrite( void *fp, char *buf, ber_len_t len );
static void do_read (LDAP *ld, FILE *fp, char *dn);
static void do_help (FILE *op);
static void do_sizelimit(FILE *fp, char type);
static void do_error (FILE *fp, char *s);
char myhost[MAXHOSTNAMELEN];
int myport = GO500GW_PORT;
static void
usage( char *name )
{
fprintf( stderr, "usage: %s [-d debuglevel] [-I] [-p port] [-P ldapport] [-l]\r\n\t[-x ldaphost] [-a] [-h helpfile] [-f filterfile] [-t templatefile] [-c rdncount]\r\n", name );
exit( 1 );
}
int
main (int argc, char **argv )
{
int s, ns, rc;
int port = -1;
int i, pid;
char *myname;
fd_set readfds;
struct hostent *hp;
struct sockaddr_in from;
socklen_t fromlen;
#if defined( LDAP_PROCTITLE ) && !defined( HAVE_SETPROCTITLE )
/* for setproctitle */
Argv = argv;
Argc = argc;
#endif
while ( (i = getopt( argc, argv, "P:ad:f:h:lp:t:x:Ic:" )) != EOF ) {
switch( i ) {
case 'a': /* search aliases */
searchaliases = 0;
break;
case 'd': /* debugging level */
debug |= atoi( optarg );
break;
case 'f': /* ldap filter file */
filterfile = strdup( optarg );
break;
case 'h': /* gopher help file */
helpfile = strdup( optarg );
break;
case 'l': /* log to LOG_LOCAL3 */
dosyslog = 1;
break;
case 'p': /* port to listen on */
port = atoi( optarg );
break;
case 'P': /* port to connect to ldap server */
ldapport = atoi( optarg );
break;
case 't': /* ldap template file */
templatefile = strdup( optarg );
break;
case 'x': /* ldap server hostname */
ldaphost = strdup( optarg );
break;
case 'I': /* run from inetd */
inetd = 1;
break;
case 'c': /* count of DN components to show */
rdncount = atoi( optarg );
break;
default:
usage( argv[0] );
}
}
#ifdef HAVE_SYSCONF
dtblsize = sysconf( _SC_OPEN_MAX );
#elif HAVE_GETDTABLESIZE
dtblsize = getdtablesize();
#else
dtblsize = FD_SETSIZE;
#endif
#ifdef FD_SETSIZE
if ( dtblsize > FD_SETSIZE ) {
dtblsize = FD_SETSIZE;
}
#endif /* FD_SETSIZE*/
#ifdef GO500GW_HOSTNAME
strcpy( myhost, GO500GW_HOSTNAME );
#else
if ( myhost[0] == '\0' && gethostname( myhost, sizeof(myhost) )
== -1 ) {
perror( "gethostname" );
exit( 1 );
}
#endif
/* detach if stderr is redirected or no debugging */
if ( inetd == 0 )
lutil_detach( debug && !isatty( 1 ), 1 );
if ( (myname = strrchr( argv[0], '/' )) == NULL )
myname = strdup( argv[0] );
else
myname = strdup( myname + 1 );
if ( debug ) {
ber_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, &debug);
ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, &debug);
}
#ifdef SIGPIPE
(void) SIGNAL( SIGPIPE, SIG_IGN );
#endif
if ( dosyslog ) {
#ifdef LOG_LOCAL3
openlog( myname, OPENLOG_OPTIONS, LOG_LOCAL3 );
#else
openlog( myname, OPENLOG_OPTIONS );
#endif
}
if ( dosyslog )
syslog( LOG_INFO, "initializing" );
/* set up the socket to listen on */
if ( inetd == 0 ) {
s = set_socket( port );
/* arrange to reap children */
(void) SIGNAL( SIGCHLD, wait4child );
}
if ( inetd ) {
fromlen = sizeof(from);
if ( getpeername( 0, (struct sockaddr *) &from, &fromlen )
== 0 ) {
hp = gethostbyaddr( (char *) &(from.sin_addr.s_addr),
sizeof(from.sin_addr.s_addr), AF_INET );
Debug( LDAP_DEBUG_ARGS, "connection from %s (%s)\n",
(hp == NULL) ? "unknown" : hp->h_name,
inet_ntoa( from.sin_addr ), 0 );
if ( dosyslog ) {
syslog( LOG_INFO, "connection from %s (%s)",
(hp == NULL) ? "unknown" : hp->h_name,
inet_ntoa( from.sin_addr ) );
}
#ifdef LDAP_PROCTITLE
setproctitle( hp == NULL ? inet_ntoa( from.sin_addr ) :
hp->h_name );
#endif
}
do_queries( 0 );
tcp_close( 0 );
exit( 0 );
}
for ( ;; ) {
FD_ZERO( &readfds );
FD_SET( s, &readfds );
if ( (rc = select( dtblsize, &readfds, 0, 0 ,0 )) == -1 ) {
if ( debug ) perror( "select" );
continue;
} else if ( rc == 0 ) {
continue;
}
if ( ! FD_ISSET( s, &readfds ) )
continue;
fromlen = sizeof(from);
if ( (ns = accept( s, (struct sockaddr *) &from, &fromlen ))
== -1 ) {
if ( debug ) perror( "accept" );
exit( 1 );
}
hp = gethostbyaddr( (char *) &(from.sin_addr.s_addr),
sizeof(from.sin_addr.s_addr), AF_INET );
if ( dosyslog ) {
syslog( LOG_INFO, "TCP connection from %s (%s)",
(hp == NULL) ? "unknown" : hp->h_name,
inet_ntoa( from.sin_addr ) );
}
switch( pid = fork() ) {
case 0: /* child */
tcp_close( s );
do_queries( ns );
break;
case -1: /* failed */
perror( "fork" );
break;
default: /* parent */
tcp_close( ns );
if ( debug )
fprintf( stderr, "forked child %d\n", pid );
break;
}
}
/* NOT REACHED */
}
static int
set_socket( int port )
{
int s, one;
struct sockaddr_in addr;
if ( port == -1 )
port = GO500GW_PORT;
myport = port;
if ( (s = socket( AF_INET, SOCK_STREAM, 0 )) == -1 ) {
perror( "socket" );
exit( 1 );
}
/* set option so clients can't keep us from coming back up */
one = 1;
if ( setsockopt( s, SOL_SOCKET, SO_REUSEADDR, (char *) &one,
sizeof(one) ) < 0 ) {
perror( "setsockopt" );
exit( 1 );
}
/* bind to a name */
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = INADDR_ANY;
addr.sin_port = htons( port );
if ( bind( s, (struct sockaddr *) &addr, sizeof(addr) ) ) {
perror( "bind" );
exit( 1 );
}
/* listen for connections */
if ( listen( s, 5 ) == -1 ) {
perror( "listen" );
exit( 1 );
}
if ( debug )
printf( "go500gw listening on port %d\n", port );
return( s );
}
static RETSIGTYPE
wait4child( int sig )
{
#ifndef HAVE_WAITPID
WAITSTATUSTYPE status;
#endif
if ( debug ) printf( "parent: catching child status\n" );
#ifdef HAVE_WAITPID
while (waitpid ((pid_t) -1, (int *) NULL, WAIT_FLAGS) > 0)
; /* NULL */
#else
while (wait4( (pid_t) -1, &status, WAIT_FLAGS, 0 ) > 0 )
; /* NULL */
#endif
(void) SIGNAL( SIGCHLD, wait4child );
}
static void
do_queries( int s )
{
char buf[1024], *query;
int len;
FILE *fp;
int rc;
int deref;
struct timeval timeout;
fd_set readfds;
LDAP *ld;
if ( (fp = fdopen( s, "a+")) == NULL ) {
perror( "fdopen" );
exit( 1 );
}
timeout.tv_sec = GO500GW_TIMEOUT;
timeout.tv_usec = 0;
FD_ZERO( &readfds );
FD_SET( fileno( fp ), &readfds );
if ( (rc = select( dtblsize, &readfds, 0, 0, &timeout )) <= 0 )
exit( 1 );
if ( fgets( buf, sizeof(buf), fp ) == NULL )
exit( 1 );
len = strlen( buf );
if ( debug ) {
fprintf( stderr, "got %d bytes\n", len );
#ifdef LDAP_DEBUG
ber_bprint( buf, len );
#endif
}
/* strip of \r \n */
if ( buf[len - 1] == '\n' )
buf[len - 1] = '\0';
len--;
if ( buf[len - 1] == '\r' )
buf[len - 1] = '\0';
len--;
query = buf;
/* strip off leading white space */
while ( isspace( (unsigned char) *query )) {
++query;
--len;
}
rewind(fp);
if ( *query == 'H' || *query == 'L' || *query == 'E' ) {
switch ( *query++ ) {
case 'H': /* help file */
do_help( fp );
break;
case 'L': /* size limit explanation */
do_sizelimit( fp, *query );
break;
case 'E': /* error explanation */
do_error( fp, query );
break;
}
fprintf( fp, ".\r\n" );
rewind(fp);
exit( 0 );
/* NOT REACHED */
}
if ( (ld = ldap_init( ldaphost, ldapport )) == NULL ) {
if ( debug ) perror( "ldap_init" );
fprintf(fp, "0An error occurred (explanation)\tE%d\t%s\t%d\r\n",
LDAP_SERVER_DOWN, myhost, myport );
fprintf( fp, ".\r\n" );
rewind(fp);
exit( 1 );
}
deref = LDAP_DEREF_ALWAYS;
if ( !searchaliases )
deref = LDAP_DEREF_FINDING;
ldap_set_option(ld, LDAP_OPT_DEREF, &deref);
if ( (rc = ldap_simple_bind_s( ld, NULL, NULL ))
!= LDAP_SUCCESS ) {
if ( debug ) ldap_perror( ld, "ldap_simple_bind_s" );
fprintf(fp, "0An error occurred (explanation)\tE%d\t%s\t%d\r\n",
rc, myhost, myport );
fprintf( fp, ".\r\n" );
rewind(fp);
exit( 1 );
}
switch ( *query++ ) {
case 'R': /* read an entry */
do_read( ld, fp, query );
break;
case 'S': /* search */
do_search( ld, fp, query );
break;
case 'M': /* X.500 menu */
do_menu( ld, fp, query );
break;
default:
do_menu( ld, fp, "" );
break;
}
fprintf( fp, ".\r\n" );
rewind(fp);
exit( 0 );
/* NOT REACHED */
}
static char *
pick_oc( char **oclist )
{
int i;
if ( oclist == NULL )
return( "unknown" );
for ( i = 0; oclist[i] != NULL; i++ ) {
if ( strcasecmp( oclist[i], "top" ) != 0 &&
strcasecmp( oclist[i], "quipuObject" ) != 0 &&
strcasecmp( oclist[i], "quipuNonLeafObject" ) != 0 )
return( oclist[i] );
}
return( "unknown" );
}
static int
isnonleaf( LDAP *ld, char **oclist, char *dn )
{
int i, quipuobject = 0;
if ( oclist == NULL )
return( 0 );
for ( i = 0; oclist[i] != NULL; i++ ) {
if ( strcasecmp( oclist[i], "quipuObject" ) == 0 )
quipuobject = 1;
if ( strcasecmp( oclist[i], "quipuNonLeafObject" ) == 0 ||
strcasecmp( oclist[i], "externalNonLeafObject" ) == 0 )
return( 1 );
}
/*
* not a quipu thang - no easy way to tell leaves from nonleaves
* except by trying to search or list. ldap only lets us search.
*/
/* expensive - just guess for now */
return( quipuobject ? 0 : 1 );
#ifdef notdef
if ( !quipuobject ) {
int rc, numentries;
struct timeval timeout;
LDAPMessage *res = NULL;
static char *attrs[] = { "objectClass", 0 };
int sizelimit = 1;
timeout.tv_sec = GO500GW_TIMEOUT;
timeout.tv_usec = 0;
ldap_set_option(ld, LDAP_OPT_SIZELIMIT, &sizelimit);
if ( (rc = ldap_search_st( ld, dn, LDAP_SCOPE_ONELEVEL,
"(objectClass=*)", attrs, 0, &timeout, &res ))
== LDAP_SUCCESS || rc == LDAP_SIZELIMIT_EXCEEDED ) {
sizelimit = LDAP_NO_LIMIT;
ldap_set_option(ld, LDAP_OPT_SIZELIMIT, &sizelimit);
numentries = ldap_count_entries( ld, res );
if ( res != NULL )
ldap_msgfree( res );
return( numentries == 1 ? 1 : 0 );
}
}
return( 0 );
#endif
}
static void
do_menu( LDAP *ld, FILE *fp, char *dn )
{
char **s;
char *rdn = NULL;
LDAPFriendlyMap *fm = NULL;
if ( strcmp( dn, "" ) != 0 ) {
s = ldap_explode_dn( dn, 1 );
if ( s[1] == NULL )
rdn = ldap_friendly_name( friendlyfile, s[0], &fm );
else
rdn = s[0];
fprintf( fp, "0Read %s entry\tR%s\t%s\t%d\r\n", rdn ? rdn: s[0],
dn, myhost, myport );
ldap_value_free( s );
} else {
fprintf( fp, "0About the Gopher to X.500 Gateway\tH\t%s\t%d\r\n",
myhost, myport );
}
fprintf( fp, "7Search %s\tS%s\t%s\t%d\r\n", rdn ? rdn : "root", dn,
myhost, myport );
do_list( ld, fp, dn );
ldap_free_friendlymap( &fm );
}
static void
do_list( LDAP *ld, FILE *fp, char *dn )
{
int rc;
LDAPMessage *e, *res;
struct timeval timeout;
LDAPFriendlyMap *fm = NULL;
static char *attrs[] = { "objectClass", 0 };
int deref = LDAP_DEREF_FINDING;
timeout.tv_sec = GO500GW_TIMEOUT;
timeout.tv_usec = 0;
ldap_set_option(ld, LDAP_OPT_DEREF, &deref);
if ( (rc = ldap_search_st( ld, dn, LDAP_SCOPE_ONELEVEL,
"(!(objectClass=dSA))", attrs, 0, &timeout, &res )) != LDAP_SUCCESS
&& rc != LDAP_SIZELIMIT_EXCEEDED ) {
fprintf(fp, "0An error occurred (explanation)\tE%d\t%s\t%d\r\n",
rc, myhost, myport );
return;
}
deref = LDAP_DEREF_ALWAYS;
ldap_set_option(ld, LDAP_OPT_DEREF, &deref);
if ( ldap_count_entries( ld, res ) < 1 ) {
return;
}
#ifdef GO500GW_SORT_ATTR
ldap_sort_entries( ld, &res, GO500GW_SORT_ATTR, strcasecmp );
#endif
fm = NULL;
for ( e = ldap_first_entry( ld, res ); e != NULL;
e = ldap_next_entry( ld, e ) ) {
char **s, **oc;
char *rdn, *doc;
dn = ldap_get_dn( ld, e );
s = ldap_explode_dn( dn, 1 );
oc = ldap_get_values( ld, e, "objectClass" );
doc = pick_oc( oc );
if ( strcasecmp( doc, "country" ) == 0 ) {
rdn = ldap_friendly_name( friendlyfile, s[0], &fm );
} else {
rdn = s[0];
}
if ( rdn == NULL ) {
rdn = s[0];
}
if ( strncasecmp( rdn, "{ASN}", 5 ) != 0 ) {
if ( isnonleaf( ld, oc, dn ) ) {
fprintf( fp, "1%s (%s)\tM%s\t%s\t%d\r\n", rdn,
doc, dn, myhost, myport );
} else {
fprintf( fp, "0%s (%s)\tR%s\t%s\t%d\r\n", rdn,
doc, dn, myhost, myport );
}
}
free( dn );
ldap_value_free( s );
ldap_value_free( oc );
}
ldap_free_friendlymap( &fm );
if ( ldap_result2error( ld, res, 1 ) == LDAP_SIZELIMIT_EXCEEDED ) {
fprintf( fp, "0A size limit was exceeded (explanation)\tLL\t%s\t%d\r\n",
myhost, myport );
}
}
static int
isoc( char **ocl, char *oc )
{
int i;
for ( i = 0; ocl[i] != NULL; i++ ) {
if ( strcasecmp( ocl[i], oc ) == 0 )
return( 1 );
}
return( 0 );
}
static int
make_scope( LDAP *ld, char *dn )
{
int scope;
char **oc;
LDAPMessage *res;
struct timeval timeout;
static char *attrs[] = { "objectClass", 0 };
if ( strcmp( dn, "" ) == 0 )
return( LDAP_SCOPE_ONELEVEL );
timeout.tv_sec = GO500GW_TIMEOUT;
timeout.tv_usec = 0;
if ( ldap_search_st( ld, dn, LDAP_SCOPE_BASE, "objectClass=*",
attrs, 0, &timeout, &res ) != LDAP_SUCCESS ) {
return( -1 );
}
oc = ldap_get_values( ld, ldap_first_entry( ld, res ), "objectClass" );
if ( isoc( oc, "organization" ) || isoc( oc, "organizationalUnit" ) )
scope = LDAP_SCOPE_SUBTREE;
else
scope = LDAP_SCOPE_ONELEVEL;
ldap_value_free( oc );
ldap_msgfree( res );
return( scope );
}
static void
do_search( LDAP *ld, FILE *fp, char *query )
{
int deref;
int scope;
char *base, *filter;
char *filtertype;
int count, rc;
struct timeval timeout;
LDAPFiltInfo *fi;
LDAPMessage *e, *res;
LDAPFiltDesc *filtd;
static char *attrs[] = { "objectClass", 0 };
if ( (filter = strchr( query, '\t' )) == NULL ) {
fprintf( fp, "3Missing filter!\r\n" );
exit( 1 );
}
*filter++ = '\0';
base = query;
#ifdef GO500GW_UFN
if ( strchr( filter, ',' ) != NULL ) {
ldap_ufn_setprefix( ld, base );
timeout.tv_sec = GO500GW_TIMEOUT;
timeout.tv_usec = 0;
ldap_ufn_timeout( (void *) &timeout );
deref = LDAP_DEREF_FINDING;
ldap_set_option(ld, LDAP_OPT_DEREF, &deref);
if ( (rc = ldap_ufn_search_s( ld, filter, attrs, 0, &res ))
!= LDAP_SUCCESS && rc != LDAP_SIZELIMIT_EXCEEDED ) {
fprintf(fp,
"0An error occurred (explanation)\t@%d\t%s\t%d\r\n",
rc, myhost, myport );
return;
}
count = ldap_count_entries( ld, res );
} else {
#endif
if ( (scope = make_scope( ld, base )) == -1 ) {
fprintf( fp, "3Bad scope\r\n" );
exit( 1 );
}
filtertype = (scope == LDAP_SCOPE_ONELEVEL ?
"go500gw onelevel" : "go500gw subtree");
deref = (scope == LDAP_SCOPE_ONELEVEL ?
LDAP_DEREF_FINDING : LDAP_DEREF_ALWAYS);
ldap_set_option(ld, LDAP_OPT_DEREF, &deref);
timeout.tv_sec = GO500GW_TIMEOUT;
timeout.tv_usec = 0;
if ( (filtd = ldap_init_getfilter( filterfile )) == NULL ) {
fprintf( stderr, "Cannot open filter file (%s)\n",
filterfile );
exit( 1 );
}
count = 0;
res = NULL;
for ( fi = ldap_getfirstfilter( filtd, filtertype, filter );
fi != NULL; fi = ldap_getnextfilter( filtd ) )
{
if ( (rc = ldap_search_st( ld, base, scope,
fi->lfi_filter, attrs, 0, &timeout, &res ))
!= LDAP_SUCCESS && rc != LDAP_SIZELIMIT_EXCEEDED ) {
fprintf(fp, "0An error occurred (explanation)\tE%d\t%s\t%d\r\n",
rc, myhost, myport );
return;
}
if ( (count = ldap_count_entries( ld, res )) != 0 )
break;
}
deref = LDAP_DEREF_ALWAYS;
ldap_set_option(ld, LDAP_OPT_DEREF, &deref);
ldap_getfilter_free( filtd );
#ifdef GO500GW_UFN
}
#endif
if ( count == 0 ) {
return;
}
if ( count == 1 ) {
char *dn, **oc;
e = ldap_first_entry( ld, res );
oc = ldap_get_values( ld, e, "objectClass" );
dn = ldap_get_dn( ld, e );
if ( isnonleaf( ld, oc, dn ) ) {
do_menu( ld, fp, dn );
free( dn );
return;
}
free( dn );
ldap_value_free( oc );
}
#ifdef GO500GW_SORT_ATTR
ldap_sort_entries( ld, &res, GO500GW_SORT_ATTR, strcasecmp );
#endif
for ( e = ldap_first_entry( ld, res ); e != NULL;
e = ldap_next_entry( ld, e ) ) {
char **s, **oc;
char *dn;
dn = ldap_get_dn( ld, e );
s = ldap_explode_dn( dn, 1 );
oc = ldap_get_values( ld, e, "objectClass" );
if ( isnonleaf( ld, oc, dn ) )
fprintf( fp, "1%s (%s)\tM%s\t%s\t%d\r\n", s[0],
pick_oc( oc ), dn, myhost, myport );
else
fprintf( fp, "0%s (%s)\tR%s\t%s\t%d\r\n", s[0],
pick_oc( oc ), dn, myhost, myport );
free( dn );
ldap_value_free( s );
ldap_value_free( oc );
}
if ( ldap_result2error( ld, res, 1 ) == LDAP_SIZELIMIT_EXCEEDED ) {
fprintf( fp, "0A size limit was exceeded (explanation)\tLS\t%s\t%d\r\n",
myhost, myport );
}
}
static int
entry2textwrite( void *fp, char *buf, ber_len_t len )
{
return( fwrite( buf, len, 1, (FILE *)fp ) == 0 ? -1 : len );
}
static void
do_read( LDAP *ld, FILE *fp, char *dn )
{
static struct ldap_disptmpl *tmpllist;
ldap_init_templates( templatefile, &tmpllist );
if ( ldap_entry2text_search( ld, dn, NULL, NULL, tmpllist, NULL, NULL,
entry2textwrite,(void *) fp, "\r\n", rdncount, 0 )
!= LDAP_SUCCESS ) {
int ld_errno = 0;
ldap_get_option(ld, LDAP_OPT_ERROR_NUMBER, &ld_errno);
fprintf(fp,
"0An error occurred (explanation)\t@%s\t%s\t%d\r\n",
ldap_err2string( ld_errno ), myhost, myport );
}
if ( tmpllist != NULL ) {
ldap_free_templates( tmpllist );
}
}
static void
do_help( FILE *op )
{
FILE *fp;
char line[BUFSIZ];
if ( (fp = fopen( helpfile, "r" )) == NULL ) {
fprintf( op, "Cannot access helpfile (%s)\r\n", helpfile );
return;
}
while ( fgets( line, sizeof(line), fp ) != NULL ) {
line[ strlen( line ) - 1 ] = '\0';
fprintf( op, "%s\r\n", line );
}
fclose( fp );
}
static void
do_sizelimit( FILE *fp, char type )
{
if ( type == 'S' ) {
fprintf( fp, "The query you specified was not specific enough, causing a size limit\r\n" );
fprintf( fp, "to be exceeded and the first several matches found to be returned.\r\n" );
fprintf( fp, "If you did not find the match you were looking for, try issuing a more\r\n" );
fprintf( fp, "specific query, for example one that contains both first and last name.\r\n" );
} else {
fprintf( fp, "Not all entries could be returned because a size limit was exceeded.\r\n" );
fprintf( fp, "There is no way to defeat this feature, but if you know who you are\r\n" );
fprintf( fp, "looking for, try choosing the \"Search\" option listed above and\r\n" );
fprintf( fp, "specifying the name of the person you want.\r\n" );
}
fprintf( fp, ".\r\n" );
}
static void
do_error( FILE *fp, char *s )
{
int code;
code = atoi( s );
fprintf( fp, "An error occurred searching X.500. The error code was %d\r\n", code );
fprintf( fp, "The corresponding error is: %s\r\n", ldap_err2string( code ) );
fprintf( fp, "No additional information is available\r\n" );
fprintf( fp, ".\r\n" );
}
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