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/* ====================================================================
* Copyright (c) 1997 Societe Generale. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by Societe Generale"
*
* 4. The name "Societe Generale" must not be used to endorse or
* promote products derived from this software without prior written
* permission.
*
* 5. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Societe Generale"
*
* THIS SOFTWARE IS PROVIDED BY SOCIETE GENERALE ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SOCIETE GENERALE
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/* mod_auth_external_sybase.c 1.2 - apache authentication using
* mod_auth_external HARCODE extension.
*
* To edit this file, use 3-characters tabs.
*
* REVISIONS:
* 1.0: br, may 15 1997
* 1.1: br, may 21 1997
* added some log facilities, due to PASS variable problem...
* 1.2: br, june 5 1997
* updated code to use mod_auth_external HARDCODE extension
* changed log usage
*
* TO DO:
* - check for sybase failures, and eventually try new connexions
* - add config file facility
* - permit multiple config files
*
*/
#undef STATUS /* to permit correct apache compilation */
#include <stdio.h> /* for those who like comments */
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sybfront.h>
#include <sybdb.h>
#include <syberror.h>
/* sybase constants: ugly, but they will *NEVER* change...
*/
#define DBUSER "cleopatra" /* user */
#define DBPASS "noufnouf" /* passwd */
#define DBNAME "ISIS" /* basename */
#define LOGFILE "/var/log/www/checkpass" /* to log USER/PASS info */
/* openbase() - open database...
*
* return value:
* NULL: cannot access database
* other: DBPROCESS id.
*
*/
DBPROCESS *openbase()
{
LOGINREC *login = NULL;
if (dbinit() == FAIL) /* get login */
return NULL;
login = dblogin();
DBSETLUSER(login, DBUSER); /* set user & passwd database access */
DBSETLPWD(login, DBPASS);
return dbopen(login, DBNAME); /* open connexion */
}
/* sybasecheck(user, passwd, conf)
* char *passwd, *passwd, *conf;
*
*/
sybasecheck(user, pass, conf)
char *user, *pass, *conf;
{
static DBPROCESS *dbproc = NULL;
char gotpass[256];
int debug = 1; /* change this and recompile to have some
* debugging
*/
int status;
FILE *debugfile = NULL;
if (debug) { /* open log file */
debugfile = fopen(LOGFILE, "a+");
}
if (debugfile) {
fprintf(debugfile, "sybasecheck: USER = <%s> ",
user? user: "<NULL>");
fprintf(debugfile, "PASS = <%s> ", pass? pass: "<NULL>");
}
if (user && pass) { /* got something? */
if (!dbproc) {
dbproc = openbase(); /* open database */
if (debugfile) {
fprintf(debugfile, " [%d]: opened base [%#x] ",
(int) getpid(), dbproc);
}
}
else {
if (debugfile) {
fprintf(debugfile, " [%d]: base [%#x] ",
(int) getpid(), dbproc);
}
}
if (dbproc) {
/* we generate sql request. It looks like:
* select passwd from users where login=$USER
*/
dbfcmd(dbproc, "select passwd from users where login = \"%s\"", user);
if (dbsqlexec(dbproc) == SUCCEED) {
if (dbresults(dbproc) == SUCCEED) {
/* we bind the results to gotpasss string & check if we
* got something...
*/
if ((dbbind(dbproc, 1, NTBSTRINGBIND,
sizeof(gotpass), gotpass) == SUCCEED) &&
((status = dbnextrow(dbproc)) != FAIL) &&
(status != NO_MORE_ROWS)) {
if (debugfile) {
fprintf(debugfile, "GOTPASS = <%s>\n",
gotpass? gotpass: "<NULL>");
fclose(debugfile);
}
/* ok: compare result to PASS variable, and exit
*/
return(strcmp(gotpass, pass)? 1: 0);
}
/* all rest are sybase errors...
*/
else
if (debugfile)
fprintf(debugfile, "error accessing database.\n");
}
else
if (debugfile)
fprintf(debugfile, "error dbresults.\n");
}
else {
if (debugfile)
fprintf(debugfile, "error in dbsqlexec.\n");
}
}
else
if (debugfile)
fprintf(debugfile, "error in dbopen.\n");
}
if (debugfile)
fclose(debugfile);
return (1);
}
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