/* $OpenLDAP: pkg/ldap/servers/slurpd/sanity.c,v 1.13.2.3 2007/01/02 21:44:12 kurt Exp $ */ /* This work is part of OpenLDAP Software . * * Copyright 1998-2007 The OpenLDAP Foundation. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted only as authorized by the OpenLDAP * Public License. * * A copy of this license is available in file LICENSE in the * top-level directory of the distribution or, alternatively, at * . */ /* Portions Copyright (c) 1996 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. */ /* ACKNOWLEDGEMENTS: * This work was originally developed by the University of Michigan * (as part of U-MICH LDAP). */ /* * sanity.c - perform sanity checks on the environment at startup time, * and report any errors before we disassociate from the controlling tty, * start up our threads, and do other stuff which makes it hard to give * feedback to the users. */ #include "portable.h" #include #include #include #include #include "slurp.h" #include "globals.h" #define FC_DIRBAD 1 #define FC_DIRUNREAD 2 #define FC_DIRUNWRITE 4 #define FC_FILEBAD 8 #define FC_FILEUNREAD 16 #define FC_FILEUNWRITE 32 /* * Forward declarations */ static unsigned int filecheck LDAP_P(( char * )); /* * Take a look around to catch any fatal errors. For example, make sure the * destination directory for our working files exists, check that all * pathnames make sense, and so on. Returns 0 is everything's ok, # -1 if there's something wrong which will keep us from functioning * correctly. * * We do all these checks at startup so we can print a reasonable error * message on stderr before we disassociate from the controlling tty. This * keeps some fatal error messages from "disappearing" into syslog. */ int sanity( void ) { int err = 0; int rc; /* * Are there any replicas listed in the slapd config file? */ if ( sglob->replicas == NULL ) { fprintf( stderr, "No replicas in slapd.conf file \"%s\"!\n", sglob->slapd_configfile ); err++; } /* * Make sure the directory housing the slapd replogfile exists, and * that the slapd replogfile is readable, if it exists. */ if ( sglob->slapd_replogfile == NULL ) { fprintf( stderr, "Fatal error: no \"replogfile\" " "slapd.conf directive given\n" ); err++; } else { rc = filecheck( sglob->slapd_replogfile ); if ( rc & FC_DIRBAD ) { fprintf( stderr, "Error: %s: directory specified in " "\"replogfile\" slapd.conf directive does not exist\n", sglob->slapd_replogfile ); err++; } else if ( rc & FC_DIRUNREAD ) { fprintf( stderr, "Error: %s: directory specified in " "\"replogfile\" slapd.conf directive is not readable\n", sglob->slapd_replogfile ); err++; } else if (!( rc & FC_FILEBAD) && ( rc & FC_FILEUNREAD )) { fprintf( stderr, "Error: %s: file specified in " "\"replogfile\" slapd.conf directive is not readable\n", sglob->slapd_replogfile ); err++; } } /* * Make sure the directory for the slurpd replogfile is there, and * that the slurpd replogfile is readable and writable, if it exists. */ if ( sglob->slurpd_replogfile == NULL ) { fprintf( stderr, "Fatal error: no \"replogfile\" directive given\n" ); err++; } else { rc = filecheck( sglob->slurpd_replogfile ); if ( rc & FC_DIRBAD ) { fprintf( stderr, "Error: %s: slurpd \"replogfile\" " "directory does not exist\n", sglob->slurpd_replogfile ); err++; } else if ( rc & FC_DIRUNREAD ) { fprintf( stderr, "Error: %s: slurpd \"replogfile\" " "directory not readable\n", sglob->slurpd_replogfile ); err++; } else if ( !( rc & FC_FILEBAD ) && ( rc & FC_FILEUNREAD )) { fprintf( stderr, "Error: %s: slurpd \"replogfile\" not readable\n", sglob->slurpd_replogfile ); err++; } else if ( !( rc & FC_FILEBAD ) && ( rc & FC_FILEUNWRITE )) { fprintf( stderr, "Error: %s: slurpd \"replogfile\" not writeable\n", sglob->slurpd_replogfile ); err++; } } /* * Make sure that the directory for the slurpd status file is there, and * that the slurpd status file is writable, if it exists. */ rc = filecheck( sglob->slurpd_status_file ); if ( rc & FC_DIRBAD ) { fprintf( stderr, "Error: %s: status directory does not exist\n", sglob->slurpd_status_file ); err++; } else if ( rc & FC_DIRUNREAD ) { fprintf( stderr, "Error: %s: status directory not readable\n", sglob->slurpd_status_file ); err++; } else if ( !( rc & FC_FILEBAD ) && ( rc & FC_FILEUNREAD )) { fprintf( stderr, "Error: %s: status file not readable\n", sglob->slurpd_status_file ); err++; } else if ( !( rc & FC_FILEBAD ) && ( rc & FC_FILEUNWRITE )) { fprintf( stderr, "Error: %s: status file not writeable\n", sglob->slurpd_status_file ); err++; } return ( err == 0 ? 0 : -1 ); } /* * Check for the existence of the file and directory leading to the file. * Returns a bitmask which is the logical OR of the following flags: * * FC_DIRBAD: directory containing "f" does not exist. * FC_DIRUNREAD: directory containing "f" exists but is not readable. * FC_DIRUNWRITE: directory containing "f" exists but is not writable. * FC_FILEBAD: "f" does not exist. * FC_FILEUNREAD: "f" exists but is unreadable. * FC_FILEUNWRITE: "f" exists but is unwritable. * * The calling routine is responsible for determining which, if any, of * the returned flags is a problem for a particular file. */ static unsigned int filecheck( char *f ) { char dir[ MAXPATHLEN ]; char *p; unsigned int ret = 0; snprintf( dir, sizeof dir, "%s", f ); p = strrchr( dir, LDAP_DIRSEP[0] ); if ( p != NULL ) { *p = '\0'; } if ( access( dir, F_OK ) < 0 ) { ret |= FC_DIRBAD; } if ( access( dir, R_OK ) < 0 ) { ret |= FC_DIRUNREAD; } if ( access( dir, W_OK ) < 0 ) { ret |= FC_DIRUNWRITE; } if ( access( f, F_OK ) < 0 ) { ret |= FC_FILEBAD; } if ( access( f, R_OK ) < 0 ) { ret |= FC_FILEUNREAD; } if ( access( f, W_OK ) < 0 ) { ret |= FC_FILEUNWRITE; } return ret; }