xref: /freebsd-11-stable/contrib/amd/amd/conf.c

/*
 * Copyright (c) 1997-1999 Erez Zadok
 * Copyright (c) 1990 Jan-Simon Pendry
 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Jan-Simon Pendry at Imperial College, London.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgment:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      %W% (Berkeley) %G%
 *
 * $Id: conf.c,v 1.4 1999/02/04 07:24:15 ezk Exp $
 *
 */

/*
 * Functions to handle the configuration file.
 */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#include <am_defs.h>
#include <amd.h>


/*
 * MACROS:
 */
/* Turn on to show some info about maps being configured */
/* #define DEBUG_CONF */

/*
 * TYPEDEFS:
 */
typedef int (*OptFuncPtr)(const char *);

/*
 * STRUCTURES:
 */
struct _func_map {
  char *name;
  OptFuncPtr func;
};

/*
 * FORWARD DECLARATIONS:
 */
static int gopt_arch(const char *val);
static int gopt_auto_dir(const char *val);
static int gopt_browsable_dirs(const char *val);
static int gopt_cache_duration(const char *val);
static int gopt_cluster(const char *val);
static int gopt_debug_options(const char *val);
static int gopt_dismount_interval(const char *val);
static int gopt_fully_qualified_hosts(const char *val);
static int gopt_hesiod_base(const char *val);
static int gopt_karch(const char *val);
static int gopt_ldap_base(const char *val);
static int gopt_ldap_cache_maxmem(const char *val);
static int gopt_ldap_cache_seconds(const char *val);
static int gopt_ldap_hostports(const char *val);
static int gopt_local_domain(const char *val);
static int gopt_log_file(const char *val);
static int gopt_log_options(const char *val);
static int gopt_map_options(const char *val);
static int gopt_map_type(const char *val);
static int gopt_mount_type(const char *val);
static int gopt_pid_file(const char *val);
static int gopt_portmap_program(const char *val);
static int gopt_nfs_retransmit_counter(const char *val);
static int gopt_nfs_retry_interval(const char *val);
static int gopt_nis_domain(const char *val);
static int gopt_normalize_hostnames(const char *val);
static int gopt_os(const char *val);
static int gopt_osver(const char *val);
static int gopt_plock(const char *val);
static int gopt_print_pid(const char *val);
static int gopt_print_version(const char *val);
static int gopt_restart_mounts(const char *val);
static int gopt_search_path(const char *val);
static int gopt_selectors_on_default(const char *val);
static int gopt_show_statfs_entries(const char *val);
static int gopt_unmount_on_exit(const char *val);
static int process_global_option(const char *key, const char *val);
static int process_regular_map(cf_map_t *cfm);
static int process_regular_option(const char *section, const char *key, const char *val, cf_map_t *cfm);
static int ropt_browsable_dirs(const char *val, cf_map_t *cfm);
static int ropt_map_name(const char *val, cf_map_t *cfm);
static int ropt_map_options(const char *val, cf_map_t *cfm);
static int ropt_map_type(const char *val, cf_map_t *cfm);
static int ropt_mount_type(const char *val, cf_map_t *cfm);
static int ropt_search_path(const char *val, cf_map_t *cfm);
static int ropt_tag(const char *val, cf_map_t *cfm);
static void reset_cf_map(cf_map_t *cfm);


/*
 * STATIC VARIABLES:
 */
static cf_map_t cur_map;
static struct _func_map glob_functable[] = {
  {"arch",			gopt_arch},
  {"auto_dir",			gopt_auto_dir},
  {"browsable_dirs",		gopt_browsable_dirs},
  {"cache_duration",		gopt_cache_duration},
  {"cluster",			gopt_cluster},
  {"debug_options",		gopt_debug_options},
  {"dismount_interval",		gopt_dismount_interval},
  {"fully_qualified_hosts",	gopt_fully_qualified_hosts},
  {"hesiod_base",		gopt_hesiod_base},
  {"karch",			gopt_karch},
  {"ldap_base",			gopt_ldap_base},
  {"ldap_cache_maxmem",		gopt_ldap_cache_maxmem},
  {"ldap_cache_seconds",	gopt_ldap_cache_seconds},
  {"ldap_hostports",		gopt_ldap_hostports},
  {"local_domain",		gopt_local_domain},
  {"log_file",			gopt_log_file},
  {"log_options",		gopt_log_options},
  {"map_options",		gopt_map_options},
  {"map_type",			gopt_map_type},
  {"mount_type",		gopt_mount_type},
  {"pid_file",			gopt_pid_file},
  {"portmap_program",		gopt_portmap_program},
  {"nfs_retransmit_counter",	gopt_nfs_retransmit_counter},
  {"nfs_retry_interval",	gopt_nfs_retry_interval},
  {"nis_domain",		gopt_nis_domain},
  {"normalize_hostnames",	gopt_normalize_hostnames},
  {"os",			gopt_os},
  {"osver",			gopt_osver},
  {"plock",			gopt_plock},
  {"print_pid",			gopt_print_pid},
  {"print_version",		gopt_print_version},
  {"restart_mounts",		gopt_restart_mounts},
  {"search_path",		gopt_search_path},
  {"selectors_on_default",	gopt_selectors_on_default},
  {"show_statfs_entries",	gopt_show_statfs_entries},
  {"unmount_on_exit",		gopt_unmount_on_exit},
  {NULL, NULL}
};


/*
 * Reset a map.
 */
static void
reset_cf_map(cf_map_t *cfm)
{
  if (!cfm)
    return;

  if (cfm->cfm_dir) {
    XFREE(cfm->cfm_dir);
    cfm->cfm_dir = NULL;
  }

  if (cfm->cfm_name) {
    XFREE(cfm->cfm_name);
    cfm->cfm_name = NULL;
  }

  if (cfm->cfm_tag) {
    XFREE(cfm->cfm_tag);
    cfm->cfm_tag = NULL;
  }

  /*
   * reset/initialize a regular map's flags and other variables from the
   * global ones, so that they are applied to all maps.  Of course, each map
   * can then override the flags individually.
   *
   * NOTES:
   * (1): Will only work for maps that appear after [global].
   * (2): Also be careful not to free() a global option.
   * (3): I'm doing direct char* pointer comparison, and not strcmp().  This
   *      is correct!
   */

  /* initialize map_type from [global] */
  if (cfm->cfm_type && cfm->cfm_type != gopt.map_type)
    XFREE(cfm->cfm_type);
  cfm->cfm_type = gopt.map_type;

  /* initialize map_opts from [global] */
  if (cfm->cfm_opts && cfm->cfm_opts != gopt.map_options)
    XFREE(cfm->cfm_opts);
  cfm->cfm_opts = gopt.map_options;

  /* initialize search_path from [global] */
  if (cfm->cfm_search_path && cfm->cfm_search_path != gopt.search_path)
    XFREE(cfm->cfm_search_path);
  cfm->cfm_search_path = gopt.search_path;

  /*
   * Initialize flags that are common both to [global] and a local map.
   */
  cfm->cfm_flags = gopt.flags & (CFM_BROWSABLE_DIRS |
				 CFM_BROWSABLE_DIRS_FULL |
				 CFM_MOUNT_TYPE_AUTOFS |
				 CFM_ENABLE_DEFAULT_SELECTORS);
}


/*
 * Process configuration file options.
 * Return 0 if OK, 1 otherwise.
 */
int
set_conf_kv(const char *section, const char *key, const char *val)
{
  int ret;

#ifdef DEBUG_CONF
  fprintf(stderr,"set_conf_kv: section=%s, key=%s, val=%s\n",
	  section, key, val);
#endif /* DEBUG_CONF */

  /*
   * If global section, process them one at a time.
   */
  if (STREQ(section, "global")) {
    /*
     * Check if a regular map was configured before "global",
     * and process it as needed.
     */
    if (cur_map.cfm_dir) {
      fprintf(stderr,"processing regular map \"%s\" before global one.\n",
	      section);
      ret = process_regular_map(&cur_map); /* will reset map */
      if (ret != 0)
	return ret;
    }

    /* process the global option first */
    ret = process_global_option(key, val);

    /* reset default options for regular maps from just updated globals */
    if (ret == 0)
      reset_cf_map(&cur_map);

    /* return status from the processing of the global option */
    return ret;
  }

  /*
   * otherwise save options and process a single map all at once.
   */

  /* check if we found a new map, so process one already collected */
  if (cur_map.cfm_dir && !STREQ(cur_map.cfm_dir, section)) {
    ret = process_regular_map(&cur_map); /* will reset map */
    if (ret != 0)
      return ret;
  }

  /* now process a single entry of a regular map */
  return process_regular_option(section, key, val, &cur_map);
}


/*
 * Process global section of configuration file options.
 * Return 0 upon success, 1 otherwise.
 */
static int
process_global_option(const char *key, const char *val)
{
  struct _func_map *gfp;

  /* ensure that val is valid */
  if (!val || val[0] == '\0')
    return 1;

  /*
   * search for global function.
   */
  for (gfp = glob_functable; gfp->name; gfp++)
    if (FSTREQ(gfp->name, key))
      return (gfp->func)(val);

  fprintf(stderr, "conf: unknown global key: \"%s\"\n", key);
  return 1;			/* failed to match any command */
}


static int
gopt_arch(const char *val)
{
  gopt.arch = strdup((char *)val);
  return 0;
}


static int
gopt_auto_dir(const char *val)
{
  gopt.auto_dir = strdup((char *)val);
  return 0;
}


static int
gopt_browsable_dirs(const char *val)
{
  if (STREQ(val, "full")) {
    gopt.flags |= CFM_BROWSABLE_DIRS_FULL;
    return 0;
  } else if (STREQ(val, "yes")) {
    gopt.flags |= CFM_BROWSABLE_DIRS;
    return 0;
  } else if (STREQ(val, "no")) {
    gopt.flags &= ~CFM_BROWSABLE_DIRS;
    return 0;
  }

  fprintf(stderr, "conf: unknown value to browsable_dirs \"%s\"\n", val);
  return 1;			/* unknown value */
}


static int
gopt_cache_duration(const char *val)
{
  gopt.am_timeo = atoi(val);
  if (gopt.am_timeo <= 0)
    gopt.am_timeo = AM_TTL;
  return 0;
}


static int
gopt_cluster(const char *val)
{
  gopt.cluster = strdup((char *)val);
  return 0;
}


static int
gopt_debug_options(const char *val)
{
#ifdef DEBUG
  usage += debug_option(strdup((char *)val));
  return 0;
#else /* not DEBUG */
  fprintf(stderr, "%s: not compiled with DEBUG option -- sorry.\n",
	  am_get_progname());
  return 1;
#endif /* not DEBUG */
}


static int
gopt_dismount_interval(const char *val)
{
  gopt.am_timeo_w = atoi(val);
  if (gopt.am_timeo_w <= 0)
    gopt.am_timeo_w = AM_TTL_W;
  return 0;
}


static int
gopt_fully_qualified_hosts(const char *val)
{
  if (STREQ(val, "yes")) {
    gopt.flags |= CFM_FULLY_QUALIFIED_HOSTS;
    return 0;
  } else if (STREQ(val, "no")) {
    gopt.flags &= ~CFM_FULLY_QUALIFIED_HOSTS;
    return 0;
  }

  fprintf(stderr, "conf: unknown value to fully_qualified_hosts \"%s\"\n", val);
  return 1;			/* unknown value */
}


static int
gopt_hesiod_base(const char *val)
{
#ifdef HAVE_MAP_HESIOD
  gopt.hesiod_base = strdup((char *)val);
  return 0;
#else /* not HAVE_MAP_HESIOD */
  fprintf(stderr, "conf: hesiod_base option ignored.  No Hesiod support available.\n");
  return 1;
#endif /* not HAVE_MAP_HESIOD */
}


static int
gopt_karch(const char *val)
{
  gopt.karch = strdup((char *)val);
  return 0;
}


static int
gopt_pid_file(const char *val)
{
  gopt.pid_file = strdup((char *)val);
  return 0;
}


static int
gopt_local_domain(const char *val)
{
  gopt.sub_domain = strdup((char *)val);
  return 0;
}


static int
gopt_ldap_base(const char *val)
{
#ifdef HAVE_MAP_LDAP
  gopt.ldap_base = strdup((char *)val);
  return 0;
#else /* not HAVE_MAP_LDAP */
  fprintf(stderr, "conf: ldap_base option ignored.  No LDAP support available.\n");
  return 1;
#endif /* not HAVE_MAP_LDAP */
}


static int
gopt_ldap_cache_seconds(const char *val)
{
#ifdef HAVE_MAP_LDAP
  char *end;

  gopt.ldap_cache_seconds = strtol((char *)val, &end, 10);
  if (end == val) {
    fprintf(stderr, "conf: bad LDAP cache (seconds) option: %s\n",val);
    return 1;
  }
  return 0;
#else /* not HAVE_MAP_LDAP */
  fprintf(stderr, "conf: ldap_cache option ignored.  No LDAP support available.\n");
  return 1;
#endif /* not HAVE_MAP_LDAP */
}


static int
gopt_ldap_cache_maxmem(const char *val)
{
#ifdef HAVE_MAP_LDAP
  char *end;

  gopt.ldap_cache_maxmem = strtol((char *)val, &end, 10);
  if (end == val) {
    fprintf(stderr, "conf: bad LDAP cache (maxmem) option: %s\n",val);
    return 1;
  }
  return 0;
#else /* not HAVE_MAP_LDAP */
  fprintf(stderr, "conf: ldap_cache option ignored.  No LDAP support available.\n");
  return 1;
#endif /* not HAVE_MAP_LDAP */
}


static int
gopt_ldap_hostports(const char *val)
{
#ifdef HAVE_MAP_LDAP
  gopt.ldap_hostports = strdup((char *)val);
  return 0;
#else /* not HAVE_MAP_LDAP */
  fprintf(stderr, "conf: ldap_hostports option ignored.  No LDAP support available.\n");
  return 1;
#endif /* not HAVE_MAP_LDAP */

}


static int
gopt_log_file(const char *val)
{
  gopt.logfile = strdup((char *)val);
  return 0;
}


static int
gopt_log_options(const char *val)
{
  usage += switch_option(strdup((char *)val));
  return 0;
}


static int
gopt_map_options(const char *val)
{
  gopt.map_options = strdup((char *)val);
  return 0;
}


static int
gopt_map_type(const char *val)
{
  /* check if map type exist */
  if (!mapc_type_exists(val)) {
    fprintf(stderr, "conf: no such map type \"%s\"\n", val);
    return 1;
  }
  gopt.map_type = strdup((char *)val);
  return 0;
}


static int
gopt_mount_type(const char *val)
{
  if (STREQ(val, "autofs")) {
#ifdef HAVE_FS_AUTOFS
    gopt.flags |= CFM_MOUNT_TYPE_AUTOFS;
    amd_use_autofs++;
    return 0;
#else /* not HAVE_FS_AUTOFS */
    fprintf(stderr, "conf: no autofs support available\n");
    return 1;
#endif /* not HAVE_FS_AUTOFS */
  } else if (STREQ(val, "nfs")) {
    gopt.flags &= ~CFM_MOUNT_TYPE_AUTOFS;
    return 0;
  }

  fprintf(stderr, "conf: unknown value to mount_type \"%s\"\n", val);
  return 1;			/* unknown value */
}


static int
gopt_portmap_program(const char *val)
{
  gopt.portmap_program = atoi(val);
  /*
   * allow alternate program numbers to be no more than 10 offset from
   * official amd program number (300019).
   */
  if (gopt.portmap_program < AMQ_PROGRAM ||
      gopt.portmap_program > AMQ_PROGRAM + 10) {
    gopt.portmap_program = AMQ_PROGRAM;
    set_amd_program_number(gopt.portmap_program);
    fprintf(stderr, "conf: illegal amd program numver \"%s\"\n", val);
    return 1;
  }

  set_amd_program_number(gopt.portmap_program);
  return 0;			/* all is OK */
}


static int
gopt_nfs_retransmit_counter(const char *val)
{
  gopt.amfs_auto_retrans = atoi(val);
  return 0;
}


static int
gopt_nfs_retry_interval(const char *val)
{
  gopt.amfs_auto_timeo = atoi(val);
  return 0;
}


static int
gopt_nis_domain(const char *val)
{
#ifdef HAVE_MAP_NIS
  gopt.nis_domain = strdup((char *)val);
  return 0;
#else /* not HAVE_MAP_NIS */
  fprintf(stderr, "conf: nis_domain option ignored.  No NIS support available.\n");
  return 1;
#endif /* not HAVE_MAP_NIS */
}


static int
gopt_normalize_hostnames(const char *val)
{
  if (STREQ(val, "yes")) {
    gopt.flags |= CFM_NORMALIZE_HOSTNAMES;
    return 0;
  } else if (STREQ(val, "no")) {
    gopt.flags &= ~CFM_NORMALIZE_HOSTNAMES;
    return 0;
  }

  fprintf(stderr, "conf: unknown value to normalize_hostnames \"%s\"\n", val);
  return 1;			/* unknown value */
}


static int
gopt_os(const char *val)
{
  gopt.op_sys = strdup((char *)val);
  return 0;
}


static int
gopt_osver(const char *val)
{
  gopt.op_sys_ver = strdup((char *)val);
  return 0;
}


static int
gopt_plock(const char *val)
{
  if (STREQ(val, "yes")) {
    gopt.flags |= CFM_PROCESS_LOCK;
    return 0;
  } else if (STREQ(val, "no")) {
    gopt.flags &= ~CFM_PROCESS_LOCK;
    return 0;
  }

  fprintf(stderr, "conf: unknown value to plock \"%s\"\n", val);
  return 1;			/* unknown value */
}


static int
gopt_print_pid(const char *val)
{
  if (STREQ(val, "yes")) {
    gopt.flags |= CFM_PRINT_PID;
    return 0;
  } else if (STREQ(val, "no")) {
    gopt.flags &= ~CFM_PRINT_PID;
    return 0;
  }

  fprintf(stderr, "conf: unknown value to print_pid \"%s\"\n", val);
  return 1;			/* unknown value */
}


static int
gopt_print_version(const char *val)
{
  if (STREQ(val, "yes")) {
    fputs(get_version_string(), stderr);
    return 0;
  } else if (STREQ(val, "no")) {
    return 0;
  }

  fprintf(stderr, "conf: unknown value to print_version \"%s\"\n", val);
  return 1;			/* unknown value */
}


static int
gopt_restart_mounts(const char *val)
{
  if (STREQ(val, "yes")) {
    gopt.flags |= CFM_RESTART_EXISTING_MOUNTS;
    return 0;
  } else if (STREQ(val, "no")) {
    gopt.flags &= ~CFM_RESTART_EXISTING_MOUNTS;
    return 0;
  }

  fprintf(stderr, "conf: unknown value to restart_mounts \"%s\"\n", val);
  return 1;			/* unknown value */
}


static int
gopt_search_path(const char *val)
{
  gopt.search_path = strdup((char *)val);
  return 0;
}


static int
gopt_selectors_on_default(const char *val)
{
  if (STREQ(val, "yes")) {
    gopt.flags |= CFM_ENABLE_DEFAULT_SELECTORS;
    return 0;
  } else if (STREQ(val, "no")) {
    gopt.flags &= ~CFM_ENABLE_DEFAULT_SELECTORS;
    return 0;
  }

  fprintf(stderr, "conf: unknown value to enable_default_selectors \"%s\"\n", val);
  return 1;			/* unknown value */
}


static int
gopt_show_statfs_entries(const char *val)
{
  if (STREQ(val, "yes")) {
    gopt.flags |= CFM_SHOW_STATFS_ENTRIES;
    return 0;
  } else if (STREQ(val, "no")) {
    gopt.flags &= ~CFM_SHOW_STATFS_ENTRIES;
    return 0;
  }

  fprintf(stderr, "conf: unknown value to show_statfs_entries \"%s\"\n", val);
  return 1;			/* unknown value */
}


static int
gopt_unmount_on_exit(const char *val)
{
  if (STREQ(val, "yes")) {
    gopt.flags |= CFM_UNMOUNT_ON_EXIT;
    return 0;
  } else if (STREQ(val, "no")) {
    gopt.flags &= ~CFM_UNMOUNT_ON_EXIT;
    return 0;
  }

  fprintf(stderr, "conf: unknown value to unmount_on_exit \"%s\"\n", val);
  return 1;			/* unknown value */
}


/*
 * Collect one entry for a regular map
 */
static int
process_regular_option(const char *section, const char *key, const char *val, cf_map_t *cfm)
{
  /* ensure that val is valid */
  if (!section || section[0] == '\0' ||
      !key || key[0] == '\0' ||
      !val || val[0] == '\0' ||
      !cfm) {
    fprintf(stderr, "conf: process_regular_option: null entries\n");
    return 1;
  }

  /* check if initializing a new map */
  if (!cfm->cfm_dir)
    cfm->cfm_dir = strdup((char *)section);

  /* check for each possible field */
  if (STREQ(key, "browsable_dirs"))
    return ropt_browsable_dirs(val, cfm);

  if (STREQ(key, "map_name"))
    return ropt_map_name(val, cfm);

  if (STREQ(key, "map_options"))
    return ropt_map_options(val, cfm);

  if (STREQ(key, "map_type"))
    return ropt_map_type(val, cfm);

  if (STREQ(key, "mount_type"))
    return ropt_mount_type(val, cfm);

  if (STREQ(key, "search_path"))
    return ropt_search_path(val, cfm);

  if (STREQ(key, "tag"))
    return ropt_tag(val, cfm);

  fprintf(stderr, "conf: unknown regular key \"%s\" for section \"%s\"\n",
	  key, section);
  return 1;			/* failed to match any command */
}


static int
ropt_browsable_dirs(const char *val, cf_map_t *cfm)
{
  if (STREQ(val, "full")) {
    cfm->cfm_flags |= CFM_BROWSABLE_DIRS_FULL;
    return 0;
  } else if (STREQ(val, "yes")) {
    cfm->cfm_flags |= CFM_BROWSABLE_DIRS;
    return 0;
  } else if (STREQ(val, "no")) {
    cfm->cfm_flags &= ~CFM_BROWSABLE_DIRS;
    return 0;
  }

  fprintf(stderr, "conf: unknown value to browsable_dirs \"%s\"\n", val);
  return 1;			/* unknown value */
}


static int
ropt_map_name(const char *val, cf_map_t *cfm)
{
  cfm->cfm_name = strdup((char *)val);
  return 0;
}


static int
ropt_map_options(const char *val, cf_map_t *cfm)
{
  cfm->cfm_opts = strdup((char *)val);
  return 0;
}


static int
ropt_map_type(const char *val, cf_map_t *cfm)
{
  /* check if map type exist */
  if (!mapc_type_exists(val)) {
    fprintf(stderr, "conf: no such map type \"%s\"\n", val);
    return 1;
  }
  cfm->cfm_type = strdup((char *)val);
  return 0;
}


static int
ropt_mount_type(const char *val, cf_map_t *cfm)
{
  if (STREQ(val, "autofs")) {
#ifdef HAVE_FS_AUTOFS
    cfm->cfm_flags |= CFM_MOUNT_TYPE_AUTOFS;
    amd_use_autofs++;
    return 0;
#else /* not HAVE_FS_AUTOFS */
    fprintf(stderr, "conf: no autofs support available\n");
    return 1;
#endif /* not HAVE_FS_AUTOFS */
  } else if (STREQ(val, "nfs")) {
    cfm->cfm_flags &= ~CFM_MOUNT_TYPE_AUTOFS;
    return 0;
  }

  fprintf(stderr, "conf: unknown value to mount_type \"%s\"\n", val);
  return 1;			/* unknown value */
}


static int
ropt_search_path(const char *val, cf_map_t *cfm)
{
  cfm->cfm_search_path = strdup((char *)val);
  return 0;
}


static int
ropt_tag(const char *val, cf_map_t *cfm)
{
  cfm->cfm_tag = strdup((char *)val);
  return 0;
}


/*
 * Process one collected map.
 */
static int
process_regular_map(cf_map_t *cfm)
{

  if (!cfm->cfm_name) {
    fprintf(stderr, "conf: map_name must be defined for map \"%s\"\n", cfm->cfm_dir);
    return 1;
  }
  /*
   * If map has no tag defined, process the map.
   * If no conf_tag was set in amd -T, process all untagged entries.
   * If a tag is defined, then process it only if it matches the map tag.
   */
  if (!cfm->cfm_tag ||
      (conf_tag && STREQ(cfm->cfm_tag, conf_tag))) {
#ifdef DEBUG_CONF
    fprintf(stderr, "processing map %s (flags=0x%x)...\n",
	    cfm->cfm_dir, cfm->cfm_flags);
#endif /* DEBUG_CONF */
    root_newmap(cfm->cfm_dir,
		cfm->cfm_opts ? cfm->cfm_opts : "",
		cfm->cfm_name,
		cfm);
  } else {
    fprintf(stderr, "skipping map %s...\n", cfm->cfm_dir);
  }

  reset_cf_map(cfm);
  return 0;
}


/*
 * Process last map in conf file (if any)
 */
int
process_last_regular_map(void)
{
  /*
   * If the amd.conf file only has a [global] section (pretty useless
   * IMHO), do not try to process a map that does not exist.
   */
  if (!cur_map.cfm_dir)
    return 0;
  return process_regular_map(&cur_map);
}