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 read_only;
 161         BOOL strict_modes;
 162         BOOL transfer_logging;
 163         BOOL use_chroot;
 164         BOOL write_only;
 165 } service;
 166
 167
 168 /* This is a default service used to prime a services structure.  In order
 169  * to make these easy to keep sorted in the same way as the variables
 170  * above, use the variable name in the leading comment, including a
 171  * trailing ';' (to avoid a sorting problem with trailing digits). */
 172 static service sDefault =
 173 {
 174  /* auth_users; */              NULL,
 175  /* comment; */                 NULL,
 176  /* dont_compress; */           DEFAULT_DONT_COMPRESS,
 177  /* exclude; */                 NULL,
 178  /* exclude_from; */            NULL,
 179  /* filter; */                  NULL,
 180  /* gid; */                     NOBODY_GROUP,
 181  /* hosts_allow; */             NULL,
 182  /* hosts_deny; */              NULL,
 183  /* include; */                 NULL,
 184  /* include_from; */            NULL,
 185  /* incoming_chmod; */          NULL,
 186  /* lock_file; */               DEFAULT_LOCK_FILE,
 187  /* log_file; */                NULL,
 188  /* log_format; */              "%o %h [%a] %m (%u) %f %l",
 189  /* name; */                    NULL,
 190  /* outgoing_chmod; */          NULL,
 191  /* path; */                    NULL,
 192  /* postxfer_exec; */           NULL,
 193  /* prexfer_exec; */            NULL,
 194  /* refuse_options; */          NULL,
 195  /* secrets_file; */            NULL,
 196  /* temp_dir; */                NULL,
 197  /* uid; */                     NOBODY_USER,
 198
 199  /* max_connections; */         0,
 200  /* max_verbosity; */           1,
 201  /* syslog_facility; */         LOG_DAEMON,
 202  /* timeout; */                 0,
 203
 204  /* fake_super; */              False,
 205  /* ignore_errors; */           False,
 206  /* ignore_nonreadable; */      False,
 207  /* list; */                    True,
 208  /* read_only; */               True,
 209  /* strict_modes; */            True,
 210  /* transfer_logging; */        False,
 211  /* use_chroot; */              True,
 212  /* write_only; */              False,
 213 };
 214
 215
 216
 217 /* local variables */
 218 static service **ServicePtrs = NULL;
 219 static int iNumServices = 0;
 220 static int iServiceIndex = 0;
 221 static BOOL bInGlobalSection = True;
 222
 223 #define NUMPARAMETERS (sizeof(parm_table) / sizeof(struct parm_struct))
 224
 225 static struct enum_list enum_facilities[] = {
 226 #ifdef LOG_AUTH
 227         { LOG_AUTH, "auth" },
 228 #endif
 229 #ifdef LOG_AUTHPRIV
 230         { LOG_AUTHPRIV, "authpriv" },
 231 #endif
 232 #ifdef LOG_CRON
 233         { LOG_CRON, "cron" },
 234 #endif
 235 #ifdef LOG_DAEMON
 236         { LOG_DAEMON, "daemon" },
 237 #endif
 238 #ifdef LOG_FTP
 239         { LOG_FTP, "ftp" },
 240 #endif
 241 #ifdef LOG_KERN
 242         { LOG_KERN, "kern" },
 243 #endif
 244 #ifdef LOG_LPR
 245         { LOG_LPR, "lpr" },
 246 #endif
 247 #ifdef LOG_MAIL
 248         { LOG_MAIL, "mail" },
 249 #endif
 250 #ifdef LOG_NEWS
 251         { LOG_NEWS, "news" },
 252 #endif
 253 #ifdef LOG_AUTH
 254         { LOG_AUTH, "security" },
 255 #endif
 256 #ifdef LOG_SYSLOG
 257         { LOG_SYSLOG, "syslog" },
 258 #endif
 259 #ifdef LOG_USER
 260         { LOG_USER, "user" },
 261 #endif
 262 #ifdef LOG_UUCP
 263         { LOG_UUCP, "uucp" },
 264 #endif
 265 #ifdef LOG_LOCAL0
 266         { LOG_LOCAL0, "local0" },
 267 #endif
 268 #ifdef LOG_LOCAL1
 269         { LOG_LOCAL1, "local1" },
 270 #endif
 271 #ifdef LOG_LOCAL2
 272         { LOG_LOCAL2, "local2" },
 273 #endif
 274 #ifdef LOG_LOCAL3
 275         { LOG_LOCAL3, "local3" },
 276 #endif
 277 #ifdef LOG_LOCAL4
 278         { LOG_LOCAL4, "local4" },
 279 #endif
 280 #ifdef LOG_LOCAL5
 281         { LOG_LOCAL5, "local5" },
 282 #endif
 283 #ifdef LOG_LOCAL6
 284         { LOG_LOCAL6, "local6" },
 285 #endif
 286 #ifdef LOG_LOCAL7
 287         { LOG_LOCAL7, "local7" },
 288 #endif
 289         { -1, NULL }};
 290
 291
 292 /* note that we do not initialise the defaults union - it is not allowed in ANSI C */
 293 static struct parm_struct parm_table[] =
 294 {
 295  {"address",           P_STRING, P_GLOBAL,&Globals.bind_address,       NULL,0},
 296  {"motd file",         P_STRING, P_GLOBAL,&Globals.motd_file,          NULL,0},
 297  {"pid file",          P_STRING, P_GLOBAL,&Globals.pid_file,           NULL,0},
 298  {"port",              P_INTEGER,P_GLOBAL,&Globals.rsync_port,         NULL,0},
 299  {"socket options",    P_STRING, P_GLOBAL,&Globals.socket_options,     NULL,0},
 300
 301  {"auth users",        P_STRING, P_LOCAL, &sDefault.auth_users,        NULL,0},
 302  {"comment",           P_STRING, P_LOCAL, &sDefault.comment,           NULL,0},
 303  {"dont compress",     P_STRING, P_LOCAL, &sDefault.dont_compress,     NULL,0},
 304  {"exclude from",      P_STRING, P_LOCAL, &sDefault.exclude_from,      NULL,0},
 305  {"exclude",           P_STRING, P_LOCAL, &sDefault.exclude,           NULL,0},
 306  {"fake super",        P_BOOL,   P_LOCAL, &sDefault.fake_super,        NULL,0},
 307  {"filter",            P_STRING, P_LOCAL, &sDefault.filter,            NULL,0},
 308  {"gid",               P_STRING, P_LOCAL, &sDefault.gid,               NULL,0},
 309  {"hosts allow",       P_STRING, P_LOCAL, &sDefault.hosts_allow,       NULL,0},
 310  {"hosts deny",        P_STRING, P_LOCAL, &sDefault.hosts_deny,        NULL,0},
 311  {"ignore errors",     P_BOOL,   P_LOCAL, &sDefault.ignore_errors,     NULL,0},
 312  {"ignore nonreadable",P_BOOL,   P_LOCAL, &sDefault.ignore_nonreadable,NULL,0},
 313  {"include from",      P_STRING, P_LOCAL, &sDefault.include_from,      NULL,0},
 314  {"include",           P_STRING, P_LOCAL, &sDefault.include,           NULL,0},
 315  {"incoming chmod",    P_STRING, P_LOCAL, &sDefault.incoming_chmod,    NULL,0},
 316  {"list",              P_BOOL,   P_LOCAL, &sDefault.list,              NULL,0},
 317  {"lock file",         P_STRING, P_LOCAL, &sDefault.lock_file,         NULL,0},
 318  {"log file",          P_STRING, P_LOCAL, &sDefault.log_file,          NULL,0},
 319  {"log format",        P_STRING, P_LOCAL, &sDefault.log_format,        NULL,0},
 320  {"max connections",   P_INTEGER,P_LOCAL, &sDefault.max_connections,   NULL,0},
 321  {"max verbosity",     P_INTEGER,P_LOCAL, &sDefault.max_verbosity,     NULL,0},
 322  {"name",              P_STRING, P_LOCAL, &sDefault.name,              NULL,0},
 323  {"outgoing chmod",    P_STRING, P_LOCAL, &sDefault.outgoing_chmod,    NULL,0},
 324  {"path",              P_PATH,   P_LOCAL, &sDefault.path,              NULL,0},
 325 #ifdef HAVE_PUTENV
 326  {"post-xfer exec",    P_STRING, P_LOCAL, &sDefault.postxfer_exec,     NULL,0},
 327  {"pre-xfer exec",     P_STRING, P_LOCAL, &sDefault.prexfer_exec,      NULL,0},
 328 #endif
 329  {"read only",         P_BOOL,   P_LOCAL, &sDefault.read_only,         NULL,0},
 330  {"refuse options",    P_STRING, P_LOCAL, &sDefault.refuse_options,    NULL,0},
 331  {"secrets file",      P_STRING, P_LOCAL, &sDefault.secrets_file,      NULL,0},
 332  {"strict modes",      P_BOOL,   P_LOCAL, &sDefault.strict_modes,      NULL,0},
 333  {"syslog facility",   P_ENUM,   P_LOCAL, &sDefault.syslog_facility,enum_facilities,0},
 334  {"temp dir",          P_PATH,   P_LOCAL, &sDefault.temp_dir,          NULL,0},
 335  {"timeout",           P_INTEGER,P_LOCAL, &sDefault.timeout,           NULL,0},
 336  {"transfer logging",  P_BOOL,   P_LOCAL, &sDefault.transfer_logging,  NULL,0},
 337  {"uid",               P_STRING, P_LOCAL, &sDefault.uid,               NULL,0},
 338  {"use chroot",        P_BOOL,   P_LOCAL, &sDefault.use_chroot,        NULL,0},
 339  {"write only",        P_BOOL,   P_LOCAL, &sDefault.write_only,        NULL,0},
 340  {NULL,                P_BOOL,   P_NONE,  NULL,                        NULL,0}
 341 };
 342
 343
 344 /***************************************************************************
 345 * Initialise the global parameter structure.
 346 ***************************************************************************/
 347 static void init_globals(void)
 348 {
 349         memset(&Globals, 0, sizeof Globals);
 350 }
 351
 352 /***************************************************************************
 353 * Initialise the sDefault parameter structure.
 354 ***************************************************************************/
 355 static void init_locals(void)
 356 {
 357 }
 358
 359
 360 /*
 361    In this section all the functions that are used to access the
 362    parameters from the rest of the program are defined
 363 */
 364
 365 #define FN_GLOBAL_STRING(fn_name,ptr) \
 366  char *fn_name(void) {return(*(char **)(ptr) ? *(char **)(ptr) : "");}
 367 #define FN_GLOBAL_BOOL(fn_name,ptr) \
 368  BOOL fn_name(void) {return(*(BOOL *)(ptr));}
 369 #define FN_GLOBAL_CHAR(fn_name,ptr) \
 370  char fn_name(void) {return(*(char *)(ptr));}
 371 #define FN_GLOBAL_INTEGER(fn_name,ptr) \
 372  int fn_name(void) {return(*(int *)(ptr));}
 373
 374 #define FN_LOCAL_STRING(fn_name,val) \
 375  char *fn_name(int i) {return((LP_SNUM_OK(i)&&pSERVICE(i)->val)?pSERVICE(i)->val : (sDefault.val?sDefault.val:""));}
 376 #define FN_LOCAL_BOOL(fn_name,val) \
 377  BOOL fn_name(int i) {return(LP_SNUM_OK(i)? pSERVICE(i)->val : sDefault.val);}
 378 #define FN_LOCAL_CHAR(fn_name,val) \
 379  char fn_name(int i) {return(LP_SNUM_OK(i)? pSERVICE(i)->val : sDefault.val);}
 380 #define FN_LOCAL_INTEGER(fn_name,val) \
 381  int fn_name(int i) {return(LP_SNUM_OK(i)? pSERVICE(i)->val : sDefault.val);}
 382
 383
 384 FN_GLOBAL_STRING(lp_bind_address, &Globals.bind_address)
 385 FN_GLOBAL_STRING(lp_motd_file, &Globals.motd_file)
 386 FN_GLOBAL_STRING(lp_pid_file, &Globals.pid_file)
 387 FN_GLOBAL_STRING(lp_socket_options, &Globals.socket_options)
 388
 389 FN_GLOBAL_INTEGER(lp_rsync_port, &Globals.rsync_port)
 390
 391 FN_LOCAL_STRING(lp_auth_users, auth_users)
 392 FN_LOCAL_STRING(lp_comment, comment)
 393 FN_LOCAL_STRING(lp_dont_compress, dont_compress)
 394 FN_LOCAL_STRING(lp_exclude, exclude)
 395 FN_LOCAL_STRING(lp_exclude_from, exclude_from)
 396 FN_LOCAL_STRING(lp_filter, filter)
 397 FN_LOCAL_STRING(lp_gid, gid)
 398 FN_LOCAL_STRING(lp_hosts_allow, hosts_allow)
 399 FN_LOCAL_STRING(lp_hosts_deny, hosts_deny)
 400 FN_LOCAL_STRING(lp_include, include)
 401 FN_LOCAL_STRING(lp_include_from, include_from)
 402 FN_LOCAL_STRING(lp_incoming_chmod, incoming_chmod)
 403 FN_LOCAL_STRING(lp_lock_file, lock_file)
 404 FN_LOCAL_STRING(lp_log_file, log_file)
 405 FN_LOCAL_STRING(lp_log_format, log_format)
 406 FN_LOCAL_STRING(lp_name, name)
 407 FN_LOCAL_STRING(lp_outgoing_chmod, outgoing_chmod)
 408 FN_LOCAL_STRING(lp_path, path)
 409 FN_LOCAL_STRING(lp_postxfer_exec, postxfer_exec)
 410 FN_LOCAL_STRING(lp_prexfer_exec, prexfer_exec)
 411 FN_LOCAL_STRING(lp_refuse_options, refuse_options)
 412 FN_LOCAL_STRING(lp_secrets_file, secrets_file)
 413 FN_LOCAL_INTEGER(lp_syslog_facility, syslog_facility)
 414 FN_LOCAL_STRING(lp_temp_dir, temp_dir)
 415 FN_LOCAL_STRING(lp_uid, uid)
 416
 417 FN_LOCAL_INTEGER(lp_max_connections, max_connections)
 418 FN_LOCAL_INTEGER(lp_max_verbosity, max_verbosity)
 419 FN_LOCAL_INTEGER(lp_timeout, timeout)
 420
 421 FN_LOCAL_BOOL(lp_fake_super, fake_super)
 422 FN_LOCAL_BOOL(lp_ignore_errors, ignore_errors)
 423 FN_LOCAL_BOOL(lp_ignore_nonreadable, ignore_nonreadable)
 424 FN_LOCAL_BOOL(lp_list, list)
 425 FN_LOCAL_BOOL(lp_read_only, read_only)
 426 FN_LOCAL_BOOL(lp_strict_modes, strict_modes)
 427 FN_LOCAL_BOOL(lp_transfer_logging, transfer_logging)
 428 FN_LOCAL_BOOL(lp_use_chroot, use_chroot)
 429 FN_LOCAL_BOOL(lp_write_only, write_only)
 430
 431 /* local prototypes */
 432 static int    strwicmp(char *psz1, char *psz2);
 433 static int    map_parameter(char *parmname);
 434 static BOOL   set_boolean(BOOL *pb, char *parmvalue);
 435 static int    getservicebyname(char *name, service *pserviceDest);
 436 static void   copy_service(service *pserviceDest, service *pserviceSource);
 437 static BOOL   do_parameter(char *parmname, char *parmvalue);
 438 static BOOL   do_section(char *sectionname);
 439
 440
 441 /***************************************************************************
 442 * initialise a service to the defaults
 443 ***************************************************************************/
 444 static void init_service(service *pservice)
 445 {
 446         memset((char *)pservice,0,sizeof(service));
 447         copy_service(pservice,&sDefault);
 448 }
 449
 450
 451 /**
 452  * Assign a copy of @p v to @p *s.  Handles NULL strings.  @p *v must
 453  * be initialized when this is called, either to NULL or a malloc'd
 454  * string.
 455  *
 456  * @fixme There is a small leak here in that sometimes the existing
 457  * value will be dynamically allocated, and the old copy is lost.
 458  * However, we can't always deallocate the old value, because in the
 459  * case of sDefault, it points to a static string.  It would be nice
 460  * to have either all-strdup'd values, or to never need to free
 461  * memory.
 462  **/
 463 static void string_set(char **s, const char *v)
 464 {
 465         if (!v) {
 466                 *s = NULL;
 467                 return;
 468         }
 469         *s = strdup(v);
 470         if (!*s)
 471                 exit_cleanup(RERR_MALLOC);
 472 }
 473
 474
 475 /***************************************************************************
 476 * add a new service to the services array initialising it with the given
 477 * service
 478 ***************************************************************************/
 479 static int add_a_service(service *pservice, char *name)
 480 {
 481   int i;
 482   service tservice;
 483   int num_to_alloc = iNumServices+1;
 484
 485   tservice = *pservice;
 486
 487   /* it might already exist */
 488   if (name)
 489     {
 490       i = getservicebyname(name,NULL);
 491       if (i >= 0)
 492         return(i);
 493     }
 494
 495   i = iNumServices;
 496
 497   ServicePtrs = realloc_array(ServicePtrs, service *, num_to_alloc);
 498
 499   if (ServicePtrs)
 500           pSERVICE(iNumServices) = new(service);
 501
 502   if (!ServicePtrs || !pSERVICE(iNumServices))
 503           return(-1);
 504
 505   iNumServices++;
 506
 507   init_service(pSERVICE(i));
 508   copy_service(pSERVICE(i),&tservice);
 509   if (name)
 510     string_set(&iSERVICE(i).name,name);
 511
 512   return(i);
 513 }
 514
 515 /***************************************************************************
 516 * Do a case-insensitive, whitespace-ignoring string compare.
 517 ***************************************************************************/
 518 static int strwicmp(char *psz1, char *psz2)
 519 {
 520    /* if BOTH strings are NULL, return TRUE, if ONE is NULL return */
 521    /* appropriate value. */
 522    if (psz1 == psz2)
 523       return (0);
 524    else
 525       if (psz1 == NULL)
 526          return (-1);
 527       else
 528           if (psz2 == NULL)
 529               return (1);
 530
 531    /* sync the strings on first non-whitespace */
 532    while (1)
 533    {
 534       while (isSpace(psz1))
 535          psz1++;
 536       while (isSpace(psz2))
 537          psz2++;
 538       if (toUpper(psz1) != toUpper(psz2) || *psz1 == '\0' || *psz2 == '\0')
 539          break;
 540       psz1++;
 541       psz2++;
 542    }
 543    return (*psz1 - *psz2);
 544 }
 545
 546 /***************************************************************************
 547 * Map a parameter's string representation to something we can use.
 548 * Returns False if the parameter string is not recognised, else TRUE.
 549 ***************************************************************************/
 550 static int map_parameter(char *parmname)
 551 {
 552    int iIndex;
 553
 554    if (*parmname == '-')
 555      return(-1);
 556
 557    for (iIndex = 0; parm_table[iIndex].label; iIndex++)
 558       if (strwicmp(parm_table[iIndex].label, parmname) == 0)
 559          return(iIndex);
 560
 561    rprintf(FERROR, "Unknown Parameter encountered: \"%s\"\n", parmname);
 562    return(-1);
 563 }
 564
 565
 566 /***************************************************************************
 567 * Set a boolean variable from the text value stored in the passed string.
 568 * Returns True in success, False if the passed string does not correctly
 569 * represent a boolean.
 570 ***************************************************************************/
 571 static BOOL set_boolean(BOOL *pb, char *parmvalue)
 572 {
 573    BOOL bRetval;
 574
 575    bRetval = True;
 576    if (strwicmp(parmvalue, "yes") == 0 ||
 577        strwicmp(parmvalue, "true") == 0 ||
 578        strwicmp(parmvalue, "1") == 0)
 579       *pb = True;
 580    else
 581       if (strwicmp(parmvalue, "no") == 0 ||
 582           strwicmp(parmvalue, "False") == 0 ||
 583           strwicmp(parmvalue, "0") == 0)
 584          *pb = False;
 585       else
 586       {
 587          rprintf(FERROR, "Badly formed boolean in configuration file: \"%s\".\n",
 588                parmvalue);
 589          bRetval = False;
 590       }
 591    return (bRetval);
 592 }
 593
 594 /***************************************************************************
 595 * Find a service by name. Otherwise works like get_service.
 596 ***************************************************************************/
 597 static int getservicebyname(char *name, service *pserviceDest)
 598 {
 599    int iService;
 600
 601    for (iService = iNumServices - 1; iService >= 0; iService--)
 602       if (strwicmp(iSERVICE(iService).name, name) == 0)
 603       {
 604          if (pserviceDest != NULL)
 605            copy_service(pserviceDest, pSERVICE(iService));
 606          break;
 607       }
 608
 609    return (iService);
 610 }
 611
 612
 613
 614 /***************************************************************************
 615 * Copy a service structure to another
 616 ***************************************************************************/
 617 static void copy_service(service *pserviceDest,
 618                          service *pserviceSource)
 619 {
 620   int i;
 621
 622   for (i=0;parm_table[i].label;i++)
 623     if (parm_table[i].ptr && parm_table[i].class == P_LOCAL) {
 624         void *def_ptr = parm_table[i].ptr;
 625         void *src_ptr =
 626           ((char *)pserviceSource) + PTR_DIFF(def_ptr,&sDefault);
 627         void *dest_ptr =
 628           ((char *)pserviceDest) + PTR_DIFF(def_ptr,&sDefault);
 629
 630         switch (parm_table[i].type)
 631           {
 632           case P_BOOL:
 633           case P_BOOLREV:
 634             *(BOOL *)dest_ptr = *(BOOL *)src_ptr;
 635             break;
 636
 637           case P_INTEGER:
 638           case P_ENUM:
 639           case P_OCTAL:
 640             *(int *)dest_ptr = *(int *)src_ptr;
 641             break;
 642
 643           case P_CHAR:
 644             *(char *)dest_ptr = *(char *)src_ptr;
 645             break;
 646
 647           case P_PATH:
 648           case P_STRING:
 649             string_set(dest_ptr,*(char **)src_ptr);
 650             break;
 651
 652           default:
 653             break;
 654           }
 655       }
 656 }
 657
 658
 659 /***************************************************************************
 660 * Process a parameter for a particular service number. If snum < 0
 661 * then assume we are in the globals
 662 ***************************************************************************/
 663 static BOOL lp_do_parameter(int snum, char *parmname, char *parmvalue)
 664 {
 665    int parmnum, i;
 666    void *parm_ptr=NULL; /* where we are going to store the result */
 667    void *def_ptr=NULL;
 668    char *cp;
 669
 670    parmnum = map_parameter(parmname);
 671
 672    if (parmnum < 0)
 673      {
 674        rprintf(FERROR, "IGNORING unknown parameter \"%s\"\n", parmname);
 675        return(True);
 676      }
 677
 678    def_ptr = parm_table[parmnum].ptr;
 679
 680    /* we might point at a service, the default service or a global */
 681    if (snum < 0) {
 682      parm_ptr = def_ptr;
 683    } else {
 684        if (parm_table[parmnum].class == P_GLOBAL) {
 685            rprintf(FERROR, "Global parameter %s found in service section!\n",parmname);
 686            return(True);
 687          }
 688        parm_ptr = ((char *)pSERVICE(snum)) + PTR_DIFF(def_ptr,&sDefault);
 689    }
 690
 691    /* now switch on the type of variable it is */
 692    switch (parm_table[parmnum].type)
 693      {
 694      case P_BOOL:
 695        set_boolean(parm_ptr,parmvalue);
 696        break;
 697
 698      case P_BOOLREV:
 699        set_boolean(parm_ptr,parmvalue);
 700        *(BOOL *)parm_ptr = ! *(BOOL *)parm_ptr;
 701        break;
 702
 703      case P_INTEGER:
 704        *(int *)parm_ptr = atoi(parmvalue);
 705        break;
 706
 707      case P_CHAR:
 708        *(char *)parm_ptr = *parmvalue;
 709        break;
 710
 711      case P_OCTAL:
 712        sscanf(parmvalue,"%o",(int *)parm_ptr);
 713        break;
 714
 715      case P_PATH:
 716        string_set(parm_ptr,parmvalue);
 717        if ((cp = *(char**)parm_ptr) != NULL) {
 718            int len = strlen(cp);
 719            while (len > 1 && cp[len-1] == '/') len--;
 720            cp[len] = '\0';
 721        }
 722        break;
 723
 724      case P_STRING:
 725        string_set(parm_ptr,parmvalue);
 726        break;
 727
 728      case P_GSTRING:
 729        strlcpy((char *)parm_ptr,parmvalue,sizeof(pstring));
 730        break;
 731
 732      case P_ENUM:
 733              for (i=0;parm_table[parmnum].enum_list[i].name;i++) {
 734                      if (strequal(parmvalue, parm_table[parmnum].enum_list[i].name)) {
 735                              *(int *)parm_ptr = parm_table[parmnum].enum_list[i].value;
 736                              break;
 737                      }
 738              }
 739              if (!parm_table[parmnum].enum_list[i].name) {
 740                      if (atoi(parmvalue) > 0)
 741                              *(int *)parm_ptr = atoi(parmvalue);
 742              }
 743              break;
 744      case P_SEP:
 745              break;
 746      }
 747
 748    return(True);
 749 }
 750
 751 /***************************************************************************
 752 * Process a parameter.
 753 ***************************************************************************/
 754 static BOOL do_parameter(char *parmname, char *parmvalue)
 755 {
 756    return lp_do_parameter(bInGlobalSection?-2:iServiceIndex, parmname, parmvalue);
 757 }
 758
 759 /***************************************************************************
 760 * Process a new section (service). At this stage all sections are services.
 761 * Later we'll have special sections that permit server parameters to be set.
 762 * Returns True on success, False on failure.
 763 ***************************************************************************/
 764 static BOOL do_section(char *sectionname)
 765 {
 766    BOOL bRetval;
 767    BOOL isglobal = (strwicmp(sectionname, GLOBAL_NAME) == 0);
 768    bRetval = False;
 769
 770    /* if we were in a global section then do the local inits */
 771    if (bInGlobalSection && !isglobal)
 772      init_locals();
 773
 774    /* if we've just struck a global section, note the fact. */
 775    bInGlobalSection = isglobal;
 776
 777    /* check for multiple global sections */
 778    if (bInGlobalSection)
 779    {
 780      return(True);
 781    }
 782
 783    /* if we have a current service, tidy it up before moving on */
 784    bRetval = True;
 785
 786    if (iServiceIndex >= 0)
 787      bRetval = True;
 788
 789    /* if all is still well, move to the next record in the services array */
 790    if (bRetval)
 791      {
 792        /* We put this here to avoid an odd message order if messages are */
 793        /* issued by the post-processing of a previous section. */
 794
 795        if ((iServiceIndex=add_a_service(&sDefault,sectionname)) < 0)
 796          {
 797            rprintf(FERROR,"Failed to add a new service\n");
 798            return(False);
 799          }
 800      }
 801
 802    return (bRetval);
 803 }
 804
 805
 806 /***************************************************************************
 807 * Load the services array from the services file. Return True on success,
 808 * False on failure.
 809 ***************************************************************************/
 810 BOOL lp_load(char *pszFname, int globals_only)
 811 {
 812         pstring n2;
 813         BOOL bRetval;
 814
 815         bRetval = False;
 816
 817         bInGlobalSection = True;
 818
 819         init_globals();
 820
 821         pstrcpy(n2, pszFname);
 822
 823         /* We get sections first, so have to start 'behind' to make up */
 824         iServiceIndex = -1;
 825         bRetval = pm_process(n2, globals_only?NULL:do_section, do_parameter);
 826
 827         return (bRetval);
 828 }
 829
 830
 831 /***************************************************************************
 832 * return the max number of services
 833 ***************************************************************************/
 834 int lp_numservices(void)
 835 {
 836   return(iNumServices);
 837 }
 838
 839 /***************************************************************************
 840 * Return the number of the service with the given name, or -1 if it doesn't
 841 * exist. Note that this is a DIFFERENT ANIMAL from the internal function
 842 * getservicebyname()! This works ONLY if all services have been loaded, and
 843 * does not copy the found service.
 844 ***************************************************************************/
 845 int lp_number(char *name)
 846 {
 847    int iService;
 848
 849    for (iService = iNumServices - 1; iService >= 0; iService--)
 850       if (strcmp(lp_name(iService), name) == 0)
 851          break;
 852
 853    return (iService);
 854 }
 855