loadparm.c

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