/* IBM_PROLOG_BEGIN_TAG */ /* This is an automatically generated prolog. */ /* */ /* bos720 src/bos/usr/samples/cfg/ucfgyyy.c 1.2 */ /* */ /* Licensed Materials - Property of IBM */ /* */ /* COPYRIGHT International Business Machines Corp. 1990,1991 */ /* All Rights Reserved */ /* */ /* US Government Users Restricted Rights - Use, duplication or */ /* disclosure restricted by GSA ADP Schedule Contract with IBM Corp. */ /* */ /* IBM_PROLOG_END_TAG */ static char sccsid[] = "@(#)80 1.2 src/bos/usr/samples/cfg/ucfgyyy.c, cfgsamp, bos720 6/7/91 11:58:28"; /* * COMPONENT_NAME: (BOSSAMP) IBM BOS Sample Program * * FUNCTIONS: NONE * * ORIGINS: 27 * * (C) COPYRIGHT International Business Machines Corp. 1990 * All Rights Reserved * Licensed Materials - Property of IBM * * US Government Users Restricted Rights - Use, duplication or * disclosure restricted by GSA ADP Schedule Contract with IBM Corp. */ /* NOTICE TO USERS OF THE SOURCE CODE EXAMPLES THE SOURCE CODE EXAMPLES PROVIDED BY IBM ARE ONLY INTENDED TO ASSIST IN THE DEVELOPMENT OF A WORKING SOFTWARE PROGRAM. 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Any functionally equivalent program may be used. * RISC System/6000 is a trademark of International Business Machines Corporation. */ /* * FUNCTION: Unconfigure method for tape device of type yyy * * interface: * ucfgyyy -l */ /* header files needed for compilation */ #include #include #include #include #include #include #include #include #include extern int errno; /* System Error Number */ main(argc,argv) int argc; char *argv[]; { struct cfg_dd cfg; /* sysconfig command structure */ char *logical_name; /* logical name to unconfigure */ char sstring[256]; /* search criteria */ struct CuDv cusobj; /* customized devices object */ struct PdDv preobj; /* predefined devices object */ struct CuDv childcusobj; /* child cust. devices object */ struct Class *cusdev; /* customized devices class handle */ long majorno,minorno; /* major and minor numbers */ long *minor_list; /* list returned by getminor */ int how_many; /* number of minors in list */ int rc; /* return codes go here */ int errflg,c; /* used in parsing parameters */ extern int optind; /* flag parsed by getopt() */ extern char *optarg; /* argument parsed by getopt() */ /***** */ /***** Parse Parameters */ /***** */ errflg = 0; logical_name = NULL; while ((c = getopt(argc,argv,"l:")) != EOF) { switch (c) { case 'l': if (logical_name != NULL) errflg++; logical_name = optarg; break; default: errflg++; } } if (errflg) { /* error parsing parameters */ exit(E_ARGS); } /***** */ /***** Validate Parameters */ /***** */ /* logical name must be specified */ if (logical_name == NULL) exit(E_LNAME); /* start up odm */ if (odm_initialize() == -1) /* initialization failed */ exit(E_ODMINIT); /* lock the database */ if (odm_lock("/etc/objrepos/config_lock",0) == -1) /* failed to get lock */ err_exit(E_ODMLOCK); /* open customized device object class */ if ((int)(cusdev=odm_open_class(CuDv_CLASS)) == -1) /* error opening class */ err_exit(E_ODMOPEN); /* Get Customized Device Object */ sprintf(sstring,"name = '%s'",logical_name); rc = (int)odm_get_first(cusdev,sstring,&cusobj); if (rc==0) { /* failed to get an object */ err_exit(E_NOCuDv); } else if (rc==-1) { /* ODM error */ err_exit(E_ODMGET); } /* * If device state is DEFINED, then already unconfigured * so just exit. */ if (cusobj.status == (short) DEFINED) /* Device is already unconfigured */ err_exit(E_OK); /* get device's predefined object */ sprintf(sstring,"uniquetype = '%s'",cusobj.PdDvLn_Lvalue); rc = (int)odm_get_first(PdDv_CLASS,sstring,&preobj); if (rc==0) { /* failed to get an object */ err_exit(E_NOPdDv); } else if (rc==-1) { /* ODM error */ err_exit(E_ODMGET); } /* * Call sysconfig() to "terminate" the device. * If fails with EBUSY, then device instance is "open", * and device cannot be "unconfigured". Any other errno * returned will be ignored since we MUST unconfigure the * device even if it reports some other error. */ /* get major number of device */ majorno = genmajor(preobj.DvDr); if (majorno == -1) /* failed to get major number */ err_exit(E_MAJORNO); /* get minor number */ minor_list = getminor(majorno, &how_many, logical_name); if (minor_list == NULL || how_many == 0) /* failed to get minor numbers */ err_exit(E_MINORNO); minorno = *minor_list; /* create devno for this device */ cfg.devno = makedev(majorno,minorno); cfg.kmid = (mid_t)0; cfg.ddsptr = (caddr_t) NULL; cfg.ddslen = (int)0; cfg.cmd = CFG_TERM; if (sysconfig(SYS_CFGDD,&cfg,sizeof(struct cfg_dd)) == -1) { if (errno == EBUSY) /* device can not be unconfigured */ err_exit(E_SYSCONFIG); } /* * Call loadext() to unload device driver. * loadext() will unload the driver only if * device is last instance of driver configured. */ cfg.kmid = loadext(preobj.DvDr,FALSE,FALSE); if (cfg.kmid == NULL) /* error unloading device driver */ err_exit(E_UNLOADEXT); /* * Change the status field of device to "DEFINED" */ cusobj.status = (short)DEFINED; if (odm_change_obj(cusdev,&cusobj) == -1) /* Could not change customized device object */ err_exit(E_ODMUPDATE); /* close the CuDv object class */ if (odm_close_class(CuDv_CLASS) == -1) /* Error closing CuDv object class */ err_exit(E_ODMCLOSE); /* shut down the odm and return successful */ odm_terminate(); exit(E_OK); } /* * NAME: err_exit * * FUNCTION: Error exit routine. * */ err_exit(exit_code) int exit_code; /* Error exit code */ { odm_close_class(CuDv_CLASS); odm_terminate(); exit(exit_code); }