File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / rsync / loadparm.c
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Fri Feb 17 15:09:30 2012 UTC (12 years, 5 months ago) by misho
Branches: rsync, MAIN
CVS tags: rsync3_0_9p0, RSYNC3_0_9, HEAD
rsync

    1: /*
    2:  * This program is free software; you can redistribute it and/or modify
    3:  * it under the terms of the GNU General Public License as published by
    4:  * the Free Software Foundation; either version 3 of the License, or
    5:  * (at your option) any later version.
    6:  *
    7:  * This program is distributed in the hope that it will be useful,
    8:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    9:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   10:  * GNU General Public License for more details.
   11:  *
   12:  * You should have received a copy of the GNU General Public License along
   13:  * with this program; if not, visit the http://fsf.org website.
   14:  */
   15: 
   16: /* This is based on loadparm.c from Samba, written by Andrew Tridgell
   17:  * and Karl Auer.  Some of the changes are:
   18:  *
   19:  * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
   20:  * Copyright (C) 2003-2009 Wayne Davison <wayned@samba.org>
   21:  */
   22: 
   23: /* Load parameters.
   24:  *
   25:  *  This module provides suitable callback functions for the params
   26:  *  module. It builds the internal table of service details which is
   27:  *  then used by the rest of the server.
   28:  *
   29:  * To add a parameter:
   30:  *
   31:  * 1) add it to the global or service structure definition
   32:  * 2) add it to the parm_table
   33:  * 3) add it to the list of available functions (eg: using FN_GLOBAL_STRING())
   34:  * 4) If it's a global then initialise it in init_globals. If a local
   35:  *    (ie. service) parameter then initialise it in the sDefault structure
   36:  *
   37:  *
   38:  * Notes:
   39:  *   The configuration file is processed sequentially for speed. It is NOT
   40:  *   accessed randomly as happens in 'real' Windows. For this reason, there
   41:  *   is a fair bit of sequence-dependent code here - ie., code which assumes
   42:  *   that certain things happen before others. In particular, the code which
   43:  *   happens at the boundary between sections is delicately poised, so be
   44:  *   careful!
   45:  *
   46:  */
   47: 
   48: /* TODO: Parameter to set debug level on server. */
   49: 
   50: #include "rsync.h"
   51: #include "ifuncs.h"
   52: #define PTR_DIFF(p1,p2) ((ptrdiff_t)(((char *)(p1)) - (char *)(p2)))
   53: #define strequal(a,b) (strcasecmp(a,b)==0)
   54: #define BOOLSTR(b) ((b) ? "Yes" : "No")
   55: typedef char pstring[1024];
   56: #define pstrcpy(a,b) strlcpy(a,b,sizeof(pstring))
   57: 
   58: #ifndef LOG_DAEMON
   59: #define LOG_DAEMON 0
   60: #endif
   61: 
   62: #define DEFAULT_DONT_COMPRESS "*.gz *.zip *.z *.rpm *.deb *.iso *.bz2" \
   63: 	" *.t[gb]z *.7z *.mp[34] *.mov *.avi *.ogg *.jpg *.jpeg"
   64: 
   65: /* the following are used by loadparm for option lists */
   66: typedef enum
   67: {
   68: 	P_BOOL,P_BOOLREV,P_CHAR,P_INTEGER,P_OCTAL,
   69: 	P_PATH,P_STRING,P_GSTRING,P_ENUM,P_SEP
   70: } parm_type;
   71: 
   72: typedef enum
   73: {
   74: 	P_LOCAL,P_GLOBAL,P_SEPARATOR,P_NONE
   75: } parm_class;
   76: 
   77: struct enum_list {
   78: 	int value;
   79: 	char *name;
   80: };
   81: 
   82: struct parm_struct
   83: {
   84: 	char *label;
   85: 	parm_type type;
   86: 	parm_class class;
   87: 	void *ptr;
   88: 	struct enum_list *enum_list;
   89: 	unsigned flags;
   90: };
   91: 
   92: #ifndef GLOBAL_NAME
   93: #define GLOBAL_NAME "global"
   94: #endif
   95: 
   96: /* some helpful bits */
   97: #define pSERVICE(i) ServicePtrs[i]
   98: #define iSERVICE(i) (*pSERVICE(i))
   99: #define LP_SNUM_OK(iService) (((iService) >= 0) && ((iService) < iNumServices))
  100: 
  101: /*
  102:  * This structure describes global (ie., server-wide) parameters.
  103:  */
  104: typedef struct
  105: {
  106: 	char *bind_address;
  107: 	char *motd_file;
  108: 	char *pid_file;
  109: 	char *socket_options;
  110: 
  111: 	int rsync_port;
  112: } global;
  113: 
  114: static global Globals;
  115: 
  116: 
  117: /*
  118:  * This structure describes a single service.  Their order must match the
  119:  * initializers below, which you can accomplish by keeping each sub-section
  120:  * sorted.  (e.g. in vim, just visually select each subsection and use !sort.)
  121:  */
  122: typedef struct
  123: {
  124: 	char *auth_users;
  125: 	char *charset;
  126: 	char *comment;
  127: 	char *dont_compress;
  128: 	char *exclude;
  129: 	char *exclude_from;
  130: 	char *filter;
  131: 	char *gid;
  132: 	char *hosts_allow;
  133: 	char *hosts_deny;
  134: 	char *include;
  135: 	char *include_from;
  136: 	char *incoming_chmod;
  137: 	char *lock_file;
  138: 	char *log_file;
  139: 	char *log_format;
  140: 	char *name;
  141: 	char *outgoing_chmod;
  142: 	char *path;
  143: 	char *postxfer_exec;
  144: 	char *prexfer_exec;
  145: 	char *refuse_options;
  146: 	char *secrets_file;
  147: 	char *temp_dir;
  148: 	char *uid;
  149: 
  150: 	int max_connections;
  151: 	int max_verbosity;
  152: 	int syslog_facility;
  153: 	int timeout;
  154: 
  155: 	BOOL fake_super;
  156: 	BOOL ignore_errors;
  157: 	BOOL ignore_nonreadable;
  158: 	BOOL list;
  159: 	BOOL munge_symlinks;
  160: 	BOOL numeric_ids;
  161: 	BOOL read_only;
  162: 	BOOL strict_modes;
  163: 	BOOL transfer_logging;
  164: 	BOOL use_chroot;
  165: 	BOOL write_only;
  166: } service;
  167: 
  168: 
  169: /* This is a default service used to prime a services structure.  In order
  170:  * to make these easy to keep sorted in the same way as the variables
  171:  * above, use the variable name in the leading comment, including a
  172:  * trailing ';' (to avoid a sorting problem with trailing digits). */
  173: static service sDefault =
  174: {
  175:  /* auth_users; */		NULL,
  176:  /* charset; */ 		NULL,
  177:  /* comment; */ 		NULL,
  178:  /* dont_compress; */		DEFAULT_DONT_COMPRESS,
  179:  /* exclude; */			NULL,
  180:  /* exclude_from; */		NULL,
  181:  /* filter; */			NULL,
  182:  /* gid; */			NOBODY_GROUP,
  183:  /* hosts_allow; */		NULL,
  184:  /* hosts_deny; */		NULL,
  185:  /* include; */			NULL,
  186:  /* include_from; */		NULL,
  187:  /* incoming_chmod; */		NULL,
  188:  /* lock_file; */		DEFAULT_LOCK_FILE,
  189:  /* log_file; */		NULL,
  190:  /* log_format; */		"%o %h [%a] %m (%u) %f %l",
  191:  /* name; */			NULL,
  192:  /* outgoing_chmod; */		NULL,
  193:  /* path; */			NULL,
  194:  /* postxfer_exec; */		NULL,
  195:  /* prexfer_exec; */		NULL,
  196:  /* refuse_options; */		NULL,
  197:  /* secrets_file; */		NULL,
  198:  /* temp_dir; */ 		NULL,
  199:  /* uid; */			NOBODY_USER,
  200: 
  201:  /* max_connections; */		0,
  202:  /* max_verbosity; */		1,
  203:  /* syslog_facility; */		LOG_DAEMON,
  204:  /* timeout; */			0,
  205: 
  206:  /* fake_super; */		False,
  207:  /* ignore_errors; */		False,
  208:  /* ignore_nonreadable; */	False,
  209:  /* list; */			True,
  210:  /* munge_symlinks; */		(BOOL)-1,
  211:  /* numeric_ids; */		(BOOL)-1,
  212:  /* read_only; */		True,
  213:  /* strict_modes; */		True,
  214:  /* transfer_logging; */	False,
  215:  /* use_chroot; */		True,
  216:  /* write_only; */		False,
  217: };
  218: 
  219: 
  220: 
  221: /* local variables */
  222: static service **ServicePtrs = NULL;
  223: static int iNumServices = 0;
  224: static int iServiceIndex = 0;
  225: static BOOL bInGlobalSection = True;
  226: 
  227: #define NUMPARAMETERS (sizeof(parm_table) / sizeof(struct parm_struct))
  228: 
  229: static struct enum_list enum_facilities[] = {
  230: #ifdef LOG_AUTH
  231: 	{ LOG_AUTH, "auth" },
  232: #endif
  233: #ifdef LOG_AUTHPRIV
  234: 	{ LOG_AUTHPRIV, "authpriv" },
  235: #endif
  236: #ifdef LOG_CRON
  237: 	{ LOG_CRON, "cron" },
  238: #endif
  239: #ifdef LOG_DAEMON
  240: 	{ LOG_DAEMON, "daemon" },
  241: #endif
  242: #ifdef LOG_FTP
  243: 	{ LOG_FTP, "ftp" },
  244: #endif
  245: #ifdef LOG_KERN
  246: 	{ LOG_KERN, "kern" },
  247: #endif
  248: #ifdef LOG_LPR
  249: 	{ LOG_LPR, "lpr" },
  250: #endif
  251: #ifdef LOG_MAIL
  252: 	{ LOG_MAIL, "mail" },
  253: #endif
  254: #ifdef LOG_NEWS
  255: 	{ LOG_NEWS, "news" },
  256: #endif
  257: #ifdef LOG_AUTH
  258: 	{ LOG_AUTH, "security" },
  259: #endif
  260: #ifdef LOG_SYSLOG
  261: 	{ LOG_SYSLOG, "syslog" },
  262: #endif
  263: #ifdef LOG_USER
  264: 	{ LOG_USER, "user" },
  265: #endif
  266: #ifdef LOG_UUCP
  267: 	{ LOG_UUCP, "uucp" },
  268: #endif
  269: #ifdef LOG_LOCAL0
  270: 	{ LOG_LOCAL0, "local0" },
  271: #endif
  272: #ifdef LOG_LOCAL1
  273: 	{ LOG_LOCAL1, "local1" },
  274: #endif
  275: #ifdef LOG_LOCAL2
  276: 	{ LOG_LOCAL2, "local2" },
  277: #endif
  278: #ifdef LOG_LOCAL3
  279: 	{ LOG_LOCAL3, "local3" },
  280: #endif
  281: #ifdef LOG_LOCAL4
  282: 	{ LOG_LOCAL4, "local4" },
  283: #endif
  284: #ifdef LOG_LOCAL5
  285: 	{ LOG_LOCAL5, "local5" },
  286: #endif
  287: #ifdef LOG_LOCAL6
  288: 	{ LOG_LOCAL6, "local6" },
  289: #endif
  290: #ifdef LOG_LOCAL7
  291: 	{ LOG_LOCAL7, "local7" },
  292: #endif
  293: 	{ -1, NULL }};
  294: 
  295: 
  296: /* note that we do not initialise the defaults union - it is not allowed in ANSI C */
  297: static struct parm_struct parm_table[] =
  298: {
  299:  {"address",           P_STRING, P_GLOBAL,&Globals.bind_address,       NULL,0},
  300:  {"motd file",         P_STRING, P_GLOBAL,&Globals.motd_file,          NULL,0},
  301:  {"pid file",          P_STRING, P_GLOBAL,&Globals.pid_file,           NULL,0},
  302:  {"port",              P_INTEGER,P_GLOBAL,&Globals.rsync_port,         NULL,0},
  303:  {"socket options",    P_STRING, P_GLOBAL,&Globals.socket_options,     NULL,0},
  304: 
  305:  {"auth users",        P_STRING, P_LOCAL, &sDefault.auth_users,        NULL,0},
  306:  {"charset",           P_STRING, P_LOCAL, &sDefault.charset,           NULL,0},
  307:  {"comment",           P_STRING, P_LOCAL, &sDefault.comment,           NULL,0},
  308:  {"dont compress",     P_STRING, P_LOCAL, &sDefault.dont_compress,     NULL,0},
  309:  {"exclude from",      P_STRING, P_LOCAL, &sDefault.exclude_from,      NULL,0},
  310:  {"exclude",           P_STRING, P_LOCAL, &sDefault.exclude,           NULL,0},
  311:  {"fake super",        P_BOOL,   P_LOCAL, &sDefault.fake_super,        NULL,0},
  312:  {"filter",            P_STRING, P_LOCAL, &sDefault.filter,            NULL,0},
  313:  {"gid",               P_STRING, P_LOCAL, &sDefault.gid,               NULL,0},
  314:  {"hosts allow",       P_STRING, P_LOCAL, &sDefault.hosts_allow,       NULL,0},
  315:  {"hosts deny",        P_STRING, P_LOCAL, &sDefault.hosts_deny,        NULL,0},
  316:  {"ignore errors",     P_BOOL,   P_LOCAL, &sDefault.ignore_errors,     NULL,0},
  317:  {"ignore nonreadable",P_BOOL,   P_LOCAL, &sDefault.ignore_nonreadable,NULL,0},
  318:  {"include from",      P_STRING, P_LOCAL, &sDefault.include_from,      NULL,0},
  319:  {"include",           P_STRING, P_LOCAL, &sDefault.include,           NULL,0},
  320:  {"incoming chmod",    P_STRING, P_LOCAL, &sDefault.incoming_chmod,    NULL,0},
  321:  {"list",              P_BOOL,   P_LOCAL, &sDefault.list,              NULL,0},
  322:  {"lock file",         P_STRING, P_LOCAL, &sDefault.lock_file,         NULL,0},
  323:  {"log file",          P_STRING, P_LOCAL, &sDefault.log_file,          NULL,0},
  324:  {"log format",        P_STRING, P_LOCAL, &sDefault.log_format,        NULL,0},
  325:  {"max connections",   P_INTEGER,P_LOCAL, &sDefault.max_connections,   NULL,0},
  326:  {"max verbosity",     P_INTEGER,P_LOCAL, &sDefault.max_verbosity,     NULL,0},
  327:  {"munge symlinks",    P_BOOL,   P_LOCAL, &sDefault.munge_symlinks,    NULL,0},
  328:  {"name",              P_STRING, P_LOCAL, &sDefault.name,              NULL,0},
  329:  {"numeric ids",       P_BOOL,   P_LOCAL, &sDefault.numeric_ids,       NULL,0},
  330:  {"outgoing chmod",    P_STRING, P_LOCAL, &sDefault.outgoing_chmod,    NULL,0},
  331:  {"path",              P_PATH,   P_LOCAL, &sDefault.path,              NULL,0},
  332: #ifdef HAVE_PUTENV
  333:  {"post-xfer exec",    P_STRING, P_LOCAL, &sDefault.postxfer_exec,     NULL,0},
  334:  {"pre-xfer exec",     P_STRING, P_LOCAL, &sDefault.prexfer_exec,      NULL,0},
  335: #endif
  336:  {"read only",         P_BOOL,   P_LOCAL, &sDefault.read_only,         NULL,0},
  337:  {"refuse options",    P_STRING, P_LOCAL, &sDefault.refuse_options,    NULL,0},
  338:  {"secrets file",      P_STRING, P_LOCAL, &sDefault.secrets_file,      NULL,0},
  339:  {"strict modes",      P_BOOL,   P_LOCAL, &sDefault.strict_modes,      NULL,0},
  340:  {"syslog facility",   P_ENUM,   P_LOCAL, &sDefault.syslog_facility,enum_facilities,0},
  341:  {"temp dir",          P_PATH,   P_LOCAL, &sDefault.temp_dir,          NULL,0},
  342:  {"timeout",           P_INTEGER,P_LOCAL, &sDefault.timeout,           NULL,0},
  343:  {"transfer logging",  P_BOOL,   P_LOCAL, &sDefault.transfer_logging,  NULL,0},
  344:  {"uid",               P_STRING, P_LOCAL, &sDefault.uid,               NULL,0},
  345:  {"use chroot",        P_BOOL,   P_LOCAL, &sDefault.use_chroot,        NULL,0},
  346:  {"write only",        P_BOOL,   P_LOCAL, &sDefault.write_only,        NULL,0},
  347:  {NULL,                P_BOOL,   P_NONE,  NULL,                        NULL,0}
  348: };
  349: 
  350: 
  351: /***************************************************************************
  352: * Initialise the global parameter structure.
  353: ***************************************************************************/
  354: static void init_globals(void)
  355: {
  356: 	memset(&Globals, 0, sizeof Globals);
  357: }
  358: 
  359: /***************************************************************************
  360: * Initialise the sDefault parameter structure.
  361: ***************************************************************************/
  362: static void init_locals(void)
  363: {
  364: }
  365: 
  366: 
  367: /*
  368:    In this section all the functions that are used to access the
  369:    parameters from the rest of the program are defined
  370: */
  371: 
  372: #define FN_GLOBAL_STRING(fn_name,ptr) \
  373:  char *fn_name(void) {return(*(char **)(ptr) ? *(char **)(ptr) : "");}
  374: #define FN_GLOBAL_BOOL(fn_name,ptr) \
  375:  BOOL fn_name(void) {return(*(BOOL *)(ptr));}
  376: #define FN_GLOBAL_CHAR(fn_name,ptr) \
  377:  char fn_name(void) {return(*(char *)(ptr));}
  378: #define FN_GLOBAL_INTEGER(fn_name,ptr) \
  379:  int fn_name(void) {return(*(int *)(ptr));}
  380: 
  381: #define FN_LOCAL_STRING(fn_name,val) \
  382:  char *fn_name(int i) {return((LP_SNUM_OK(i)&&pSERVICE(i)->val)?pSERVICE(i)->val : (sDefault.val?sDefault.val:""));}
  383: #define FN_LOCAL_BOOL(fn_name,val) \
  384:  BOOL fn_name(int i) {return(LP_SNUM_OK(i)? pSERVICE(i)->val : sDefault.val);}
  385: #define FN_LOCAL_CHAR(fn_name,val) \
  386:  char fn_name(int i) {return(LP_SNUM_OK(i)? pSERVICE(i)->val : sDefault.val);}
  387: #define FN_LOCAL_INTEGER(fn_name,val) \
  388:  int fn_name(int i) {return(LP_SNUM_OK(i)? pSERVICE(i)->val : sDefault.val);}
  389: 
  390: 
  391: FN_GLOBAL_STRING(lp_bind_address, &Globals.bind_address)
  392: FN_GLOBAL_STRING(lp_motd_file, &Globals.motd_file)
  393: FN_GLOBAL_STRING(lp_pid_file, &Globals.pid_file)
  394: FN_GLOBAL_STRING(lp_socket_options, &Globals.socket_options)
  395: 
  396: FN_GLOBAL_INTEGER(lp_rsync_port, &Globals.rsync_port)
  397: 
  398: FN_LOCAL_STRING(lp_auth_users, auth_users)
  399: FN_LOCAL_STRING(lp_charset, charset)
  400: FN_LOCAL_STRING(lp_comment, comment)
  401: FN_LOCAL_STRING(lp_dont_compress, dont_compress)
  402: FN_LOCAL_STRING(lp_exclude, exclude)
  403: FN_LOCAL_STRING(lp_exclude_from, exclude_from)
  404: FN_LOCAL_STRING(lp_filter, filter)
  405: FN_LOCAL_STRING(lp_gid, gid)
  406: FN_LOCAL_STRING(lp_hosts_allow, hosts_allow)
  407: FN_LOCAL_STRING(lp_hosts_deny, hosts_deny)
  408: FN_LOCAL_STRING(lp_include, include)
  409: FN_LOCAL_STRING(lp_include_from, include_from)
  410: FN_LOCAL_STRING(lp_incoming_chmod, incoming_chmod)
  411: FN_LOCAL_STRING(lp_lock_file, lock_file)
  412: FN_LOCAL_STRING(lp_log_file, log_file)
  413: FN_LOCAL_STRING(lp_log_format, log_format)
  414: FN_LOCAL_STRING(lp_name, name)
  415: FN_LOCAL_STRING(lp_outgoing_chmod, outgoing_chmod)
  416: FN_LOCAL_STRING(lp_path, path)
  417: FN_LOCAL_STRING(lp_postxfer_exec, postxfer_exec)
  418: FN_LOCAL_STRING(lp_prexfer_exec, prexfer_exec)
  419: FN_LOCAL_STRING(lp_refuse_options, refuse_options)
  420: FN_LOCAL_STRING(lp_secrets_file, secrets_file)
  421: FN_LOCAL_STRING(lp_temp_dir, temp_dir)
  422: FN_LOCAL_STRING(lp_uid, uid)
  423: 
  424: FN_LOCAL_INTEGER(lp_max_connections, max_connections)
  425: FN_LOCAL_INTEGER(lp_max_verbosity, max_verbosity)
  426: FN_LOCAL_INTEGER(lp_syslog_facility, syslog_facility)
  427: FN_LOCAL_INTEGER(lp_timeout, timeout)
  428: 
  429: FN_LOCAL_BOOL(lp_fake_super, fake_super)
  430: FN_LOCAL_BOOL(lp_ignore_errors, ignore_errors)
  431: FN_LOCAL_BOOL(lp_ignore_nonreadable, ignore_nonreadable)
  432: FN_LOCAL_BOOL(lp_list, list)
  433: FN_LOCAL_BOOL(lp_munge_symlinks, munge_symlinks)
  434: FN_LOCAL_BOOL(lp_numeric_ids, numeric_ids)
  435: FN_LOCAL_BOOL(lp_read_only, read_only)
  436: FN_LOCAL_BOOL(lp_strict_modes, strict_modes)
  437: FN_LOCAL_BOOL(lp_transfer_logging, transfer_logging)
  438: FN_LOCAL_BOOL(lp_use_chroot, use_chroot)
  439: FN_LOCAL_BOOL(lp_write_only, write_only)
  440: 
  441: /* local prototypes */
  442: static int    strwicmp(char *psz1, char *psz2);
  443: static int    map_parameter(char *parmname);
  444: static BOOL   set_boolean(BOOL *pb, char *parmvalue);
  445: static int    getservicebyname(char *name, service *pserviceDest);
  446: static void   copy_service(service *pserviceDest, service *pserviceSource);
  447: static BOOL   do_parameter(char *parmname, char *parmvalue);
  448: static BOOL   do_section(char *sectionname);
  449: 
  450: 
  451: /***************************************************************************
  452: * initialise a service to the defaults
  453: ***************************************************************************/
  454: static void init_service(service *pservice)
  455: {
  456: 	memset((char *)pservice,0,sizeof(service));
  457: 	copy_service(pservice,&sDefault);
  458: }
  459: 
  460: 
  461: /**
  462:  * Assign a copy of @p v to @p *s.  Handles NULL strings.  @p *v must
  463:  * be initialized when this is called, either to NULL or a malloc'd
  464:  * string.
  465:  *
  466:  * @fixme There is a small leak here in that sometimes the existing
  467:  * value will be dynamically allocated, and the old copy is lost.
  468:  * However, we can't always deallocate the old value, because in the
  469:  * case of sDefault, it points to a static string.  It would be nice
  470:  * to have either all-strdup'd values, or to never need to free
  471:  * memory.
  472:  **/
  473: static void string_set(char **s, const char *v)
  474: {
  475: 	if (!v) {
  476: 		*s = NULL;
  477: 		return;
  478: 	}
  479: 	*s = strdup(v);
  480: 	if (!*s)
  481: 		exit_cleanup(RERR_MALLOC);
  482: }
  483: 
  484: 
  485: /***************************************************************************
  486: * add a new service to the services array initialising it with the given
  487: * service
  488: ***************************************************************************/
  489: static int add_a_service(service *pservice, char *name)
  490: {
  491:   int i;
  492:   service tservice;
  493:   int num_to_alloc = iNumServices+1;
  494: 
  495:   tservice = *pservice;
  496: 
  497:   /* it might already exist */
  498:   if (name)
  499:     {
  500:       i = getservicebyname(name,NULL);
  501:       if (i >= 0)
  502: 	return(i);
  503:     }
  504: 
  505:   i = iNumServices;
  506: 
  507:   ServicePtrs = realloc_array(ServicePtrs, service *, num_to_alloc);
  508: 
  509:   if (ServicePtrs)
  510: 	  pSERVICE(iNumServices) = new(service);
  511: 
  512:   if (!ServicePtrs || !pSERVICE(iNumServices))
  513: 	  return(-1);
  514: 
  515:   iNumServices++;
  516: 
  517:   init_service(pSERVICE(i));
  518:   copy_service(pSERVICE(i),&tservice);
  519:   if (name)
  520:     string_set(&iSERVICE(i).name,name);
  521: 
  522:   return(i);
  523: }
  524: 
  525: /***************************************************************************
  526: * Do a case-insensitive, whitespace-ignoring string compare.
  527: ***************************************************************************/
  528: static int strwicmp(char *psz1, char *psz2)
  529: {
  530:    /* if BOTH strings are NULL, return TRUE, if ONE is NULL return */
  531:    /* appropriate value. */
  532:    if (psz1 == psz2)
  533:       return (0);
  534:    else
  535:       if (psz1 == NULL)
  536:          return (-1);
  537:       else
  538:           if (psz2 == NULL)
  539:               return (1);
  540: 
  541:    /* sync the strings on first non-whitespace */
  542:    while (1)
  543:    {
  544:       while (isSpace(psz1))
  545:          psz1++;
  546:       while (isSpace(psz2))
  547:          psz2++;
  548:       if (toUpper(psz1) != toUpper(psz2) || *psz1 == '\0' || *psz2 == '\0')
  549:          break;
  550:       psz1++;
  551:       psz2++;
  552:    }
  553:    return (*psz1 - *psz2);
  554: }
  555: 
  556: /***************************************************************************
  557: * Map a parameter's string representation to something we can use.
  558: * Returns False if the parameter string is not recognised, else TRUE.
  559: ***************************************************************************/
  560: static int map_parameter(char *parmname)
  561: {
  562:    int iIndex;
  563: 
  564:    if (*parmname == '-')
  565:      return(-1);
  566: 
  567:    for (iIndex = 0; parm_table[iIndex].label; iIndex++)
  568:       if (strwicmp(parm_table[iIndex].label, parmname) == 0)
  569:          return(iIndex);
  570: 
  571:    rprintf(FLOG, "Unknown Parameter encountered: \"%s\"\n", parmname);
  572:    return(-1);
  573: }
  574: 
  575: 
  576: /***************************************************************************
  577: * Set a boolean variable from the text value stored in the passed string.
  578: * Returns True in success, False if the passed string does not correctly
  579: * represent a boolean.
  580: ***************************************************************************/
  581: static BOOL set_boolean(BOOL *pb, char *parmvalue)
  582: {
  583:    BOOL bRetval;
  584: 
  585:    bRetval = True;
  586:    if (strwicmp(parmvalue, "yes") == 0 ||
  587:        strwicmp(parmvalue, "true") == 0 ||
  588:        strwicmp(parmvalue, "1") == 0)
  589:       *pb = True;
  590:    else
  591:       if (strwicmp(parmvalue, "no") == 0 ||
  592:           strwicmp(parmvalue, "False") == 0 ||
  593:           strwicmp(parmvalue, "0") == 0)
  594:          *pb = False;
  595:       else
  596:       {
  597:          rprintf(FLOG, "Badly formed boolean in configuration file: \"%s\".\n",
  598:                parmvalue);
  599:          bRetval = False;
  600:       }
  601:    return (bRetval);
  602: }
  603: 
  604: /***************************************************************************
  605: * Find a service by name. Otherwise works like get_service.
  606: ***************************************************************************/
  607: static int getservicebyname(char *name, service *pserviceDest)
  608: {
  609:    int iService;
  610: 
  611:    for (iService = iNumServices - 1; iService >= 0; iService--)
  612:       if (strwicmp(iSERVICE(iService).name, name) == 0)
  613:       {
  614:          if (pserviceDest != NULL)
  615: 	   copy_service(pserviceDest, pSERVICE(iService));
  616:          break;
  617:       }
  618: 
  619:    return (iService);
  620: }
  621: 
  622: 
  623: 
  624: /***************************************************************************
  625: * Copy a service structure to another
  626: ***************************************************************************/
  627: static void copy_service(service *pserviceDest,
  628:                          service *pserviceSource)
  629: {
  630:   int i;
  631: 
  632:   for (i=0;parm_table[i].label;i++)
  633:     if (parm_table[i].ptr && parm_table[i].class == P_LOCAL) {
  634: 	void *def_ptr = parm_table[i].ptr;
  635: 	void *src_ptr =
  636: 	  ((char *)pserviceSource) + PTR_DIFF(def_ptr,&sDefault);
  637: 	void *dest_ptr =
  638: 	  ((char *)pserviceDest) + PTR_DIFF(def_ptr,&sDefault);
  639: 
  640: 	switch (parm_table[i].type)
  641: 	  {
  642: 	  case P_BOOL:
  643: 	  case P_BOOLREV:
  644: 	    *(BOOL *)dest_ptr = *(BOOL *)src_ptr;
  645: 	    break;
  646: 
  647: 	  case P_INTEGER:
  648: 	  case P_ENUM:
  649: 	  case P_OCTAL:
  650: 	    *(int *)dest_ptr = *(int *)src_ptr;
  651: 	    break;
  652: 
  653: 	  case P_CHAR:
  654: 	    *(char *)dest_ptr = *(char *)src_ptr;
  655: 	    break;
  656: 
  657: 	  case P_PATH:
  658: 	  case P_STRING:
  659: 	    string_set(dest_ptr,*(char **)src_ptr);
  660: 	    break;
  661: 
  662: 	  default:
  663: 	    break;
  664: 	  }
  665:       }
  666: }
  667: 
  668: 
  669: /***************************************************************************
  670: * Process a parameter for a particular service number. If snum < 0
  671: * then assume we are in the globals
  672: ***************************************************************************/
  673: static BOOL lp_do_parameter(int snum, char *parmname, char *parmvalue)
  674: {
  675:    int parmnum, i;
  676:    void *parm_ptr=NULL; /* where we are going to store the result */
  677:    void *def_ptr=NULL;
  678:    char *cp;
  679: 
  680:    parmnum = map_parameter(parmname);
  681: 
  682:    if (parmnum < 0)
  683:      {
  684:        rprintf(FLOG, "IGNORING unknown parameter \"%s\"\n", parmname);
  685:        return(True);
  686:      }
  687: 
  688:    def_ptr = parm_table[parmnum].ptr;
  689: 
  690:    /* we might point at a service, the default service or a global */
  691:    if (snum < 0) {
  692:      parm_ptr = def_ptr;
  693:    } else {
  694:        if (parm_table[parmnum].class == P_GLOBAL) {
  695: 	   rprintf(FLOG, "Global parameter %s found in service section!\n",parmname);
  696: 	   return(True);
  697: 	 }
  698:        parm_ptr = ((char *)pSERVICE(snum)) + PTR_DIFF(def_ptr,&sDefault);
  699:    }
  700: 
  701:    /* now switch on the type of variable it is */
  702:    switch (parm_table[parmnum].type)
  703:      {
  704:      case P_BOOL:
  705:        set_boolean(parm_ptr,parmvalue);
  706:        break;
  707: 
  708:      case P_BOOLREV:
  709:        set_boolean(parm_ptr,parmvalue);
  710:        *(BOOL *)parm_ptr = ! *(BOOL *)parm_ptr;
  711:        break;
  712: 
  713:      case P_INTEGER:
  714:        *(int *)parm_ptr = atoi(parmvalue);
  715:        break;
  716: 
  717:      case P_CHAR:
  718:        *(char *)parm_ptr = *parmvalue;
  719:        break;
  720: 
  721:      case P_OCTAL:
  722:        sscanf(parmvalue,"%o",(int *)parm_ptr);
  723:        break;
  724: 
  725:      case P_PATH:
  726:        string_set(parm_ptr,parmvalue);
  727:        if ((cp = *(char**)parm_ptr) != NULL) {
  728: 	   int len = strlen(cp);
  729: 	   while (len > 1 && cp[len-1] == '/') len--;
  730: 	   cp[len] = '\0';
  731:        }
  732:        break;
  733: 
  734:      case P_STRING:
  735:        string_set(parm_ptr,parmvalue);
  736:        break;
  737: 
  738:      case P_GSTRING:
  739:        strlcpy((char *)parm_ptr,parmvalue,sizeof(pstring));
  740:        break;
  741: 
  742:      case P_ENUM:
  743: 	     for (i=0;parm_table[parmnum].enum_list[i].name;i++) {
  744: 		     if (strequal(parmvalue, parm_table[parmnum].enum_list[i].name)) {
  745: 			     *(int *)parm_ptr = parm_table[parmnum].enum_list[i].value;
  746: 			     break;
  747: 		     }
  748: 	     }
  749: 	     if (!parm_table[parmnum].enum_list[i].name) {
  750: 		     if (atoi(parmvalue) > 0)
  751: 			     *(int *)parm_ptr = atoi(parmvalue);
  752: 	     }
  753: 	     break;
  754:      case P_SEP:
  755: 	     break;
  756:      }
  757: 
  758:    return(True);
  759: }
  760: 
  761: /***************************************************************************
  762: * Process a parameter.
  763: ***************************************************************************/
  764: static BOOL do_parameter(char *parmname, char *parmvalue)
  765: {
  766:    return lp_do_parameter(bInGlobalSection?-2:iServiceIndex, parmname, parmvalue);
  767: }
  768: 
  769: /***************************************************************************
  770: * Process a new section (service). At this stage all sections are services.
  771: * Later we'll have special sections that permit server parameters to be set.
  772: * Returns True on success, False on failure.
  773: ***************************************************************************/
  774: static BOOL do_section(char *sectionname)
  775: {
  776:    BOOL bRetval;
  777:    BOOL isglobal = (strwicmp(sectionname, GLOBAL_NAME) == 0);
  778:    bRetval = False;
  779: 
  780:    /* if we were in a global section then do the local inits */
  781:    if (bInGlobalSection && !isglobal)
  782:      init_locals();
  783: 
  784:    /* if we've just struck a global section, note the fact. */
  785:    bInGlobalSection = isglobal;
  786: 
  787:    /* check for multiple global sections */
  788:    if (bInGlobalSection)
  789:    {
  790:      return(True);
  791:    }
  792: 
  793:    if (strchr(sectionname, '/') != NULL) {
  794:      rprintf(FLOG, "Warning: invalid section name in configuration file: %s\n", sectionname);
  795:      return False;
  796:    }
  797: 
  798:    /* if we have a current service, tidy it up before moving on */
  799:    bRetval = True;
  800: 
  801:    if (iServiceIndex >= 0)
  802:      bRetval = True;
  803: 
  804:    /* if all is still well, move to the next record in the services array */
  805:    if (bRetval)
  806:      {
  807:        /* We put this here to avoid an odd message order if messages are */
  808:        /* issued by the post-processing of a previous section. */
  809: 
  810:        if ((iServiceIndex=add_a_service(&sDefault,sectionname)) < 0)
  811: 	 {
  812: 	   rprintf(FLOG, "Failed to add a new service\n");
  813: 	   return(False);
  814: 	 }
  815:      }
  816: 
  817:    return (bRetval);
  818: }
  819: 
  820: 
  821: /***************************************************************************
  822: * Load the services array from the services file. Return True on success,
  823: * False on failure.
  824: ***************************************************************************/
  825: BOOL lp_load(char *pszFname, int globals_only)
  826: {
  827: 	pstring n2;
  828: 	BOOL bRetval;
  829: 
  830: 	bRetval = False;
  831: 
  832: 	bInGlobalSection = True;
  833: 
  834: 	init_globals();
  835: 
  836: 	pstrcpy(n2, pszFname);
  837: 
  838: 	/* We get sections first, so have to start 'behind' to make up */
  839: 	iServiceIndex = -1;
  840: 	bRetval = pm_process(n2, globals_only?NULL:do_section, do_parameter);
  841: 
  842: 	return (bRetval);
  843: }
  844: 
  845: 
  846: /***************************************************************************
  847: * return the max number of services
  848: ***************************************************************************/
  849: int lp_numservices(void)
  850: {
  851:   return(iNumServices);
  852: }
  853: 
  854: /***************************************************************************
  855: * Return the number of the service with the given name, or -1 if it doesn't
  856: * exist. Note that this is a DIFFERENT ANIMAL from the internal function
  857: * getservicebyname()! This works ONLY if all services have been loaded, and
  858: * does not copy the found service.
  859: ***************************************************************************/
  860: int lp_number(char *name)
  861: {
  862:    int iService;
  863: 
  864:    for (iService = iNumServices - 1; iService >= 0; iService--)
  865:       if (strcmp(lp_name(iService), name) == 0)
  866:          break;
  867: 
  868:    return (iService);
  869: }
  870: 

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>