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/* Copyright (c) 2003, 2004 Thorsten Kukuk
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Author: Thorsten Kukuk <kukuk@suse.de>
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The YP Server is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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version 2 as published by the Free Software Foundation.
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The YP Server is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public
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License along with the YP Server; see the file COPYING. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#if defined(HAVE_CONFIG_H)
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <arpa/nameser.h>
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#include "ypserv_conf.h"
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/* This is the minimum we'll use, irrespective of config setting.
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definately don't set to less than about 30 seconds. */
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#define SLP_MIN_TIMEOUT 120
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ypservSLPRegReport (SLPHandle hslp UNUSED, SLPError errcode, void* cookie)
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/* return the error code in the cookie */
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*(SLPError*)cookie = errcode;
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do_refresh (int sig UNUSED)
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log_msg ("Service registration almost expired, refreshing it");
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/* the URL we use to register. */
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static char *url = NULL;
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static char hostname[1024];
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static struct hostent *hp = NULL;
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char *create_domain_attr (void)
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dp = opendir (YPMAPDIR);
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while ((dep = readdir (dp)) != NULL)
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/* ignore files starting with . */
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if (dep->d_name[0] == '.')
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/* Ignore all files which are not a directory. */
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if (stat (dep->d_name, &st) < 0)
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continue; /* Don't add something we cannot stat. */
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if (!S_ISDIR (st.st_mode))
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/* We also don't wish to see ypbind data as domain name. */
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if (strcmp (dep->d_name, "binding") == 0)
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#if defined(HAVE_ASPRINTF)
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if (asprintf (&str, "(domain=%s", dep->d_name) < 0)
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log_msg ("Out of memory");
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str = malloc (9 + strlen (dep->d_name));
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log_msg ("Out of memory");
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sprintf (str, "(domain=%s", dep->d_name);
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#if defined(HAVE_ASPRINTF)
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if (asprintf (&cp, "%s,%s", str, dep->d_name) < 0)
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log_msg ("Out of memory");
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cp = malloc (strlen (str) + strlen (dep->d_name) + 2);
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log_msg ("Out of memory");
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sprintf (cp, "%s,%s", str, dep->d_name);
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#if defined(HAVE_ASPRINTF)
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if (asprintf (&cp, "%s)", str) < 0)
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log_msg ("Out of memory");
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cp = malloc (strlen (str) + 2);
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log_msg ("Out of memory");
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sprintf (cp, "%s)", str);
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SLPError callbackerr;
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gethostname (hostname, sizeof (hostname));
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if (isdigit (hostname[0]))
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if (inet_pton (AF_INET, hostname, &addr))
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hp = gethostbyaddr (addr, sizeof (addr), AF_INET);
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hp = gethostbyname (hostname);
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if (slp_timeout == 0)
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timeout = SLP_LIFETIME_MAXIMUM; /* don't expire, ever */
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else if (SLP_MIN_TIMEOUT > slp_timeout)
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timeout = SLP_MIN_TIMEOUT; /* use a reasonable minimum */
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else if (SLP_LIFETIME_MAXIMUM <= slp_timeout)
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timeout = (SLP_LIFETIME_MAXIMUM - 1); /* as long as possible */
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timeout = slp_timeout;
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#if defined(HAVE_ASPRINTF)
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if (asprintf (&url, "service:ypserv://%s/", hname) < 0)
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log_msg ("Out of memory");
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url = malloc(strlen(hname) + 19);
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log_msg ("Out of memory");
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sprintf (url, "service:ypserv://%s/", hname) < 0;
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err = SLPOpen ("en", SLP_FALSE, &hslp);
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log_msg ("Error opening slp handle %i", err);
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attr = create_domain_attr ();
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if (attr == NULL) /* can also be NULL if create_domain_attr fails. */
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/* Register a service with SLP */
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err = SLPReg (hslp, url, timeout, 0,
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/* err may contain an error code that occurred as the slp library */
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/* _prepared_ to make the call. */
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if ((err != SLP_OK) || (callbackerr != SLP_OK))
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log_msg ("Error registering service with slp %i", err);
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/* callbackerr may contain an error code (that was assigned through */
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/* the callback cookie) that occurred as slp packets were sent on */
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if( callbackerr != SLP_OK)
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log_msg ("Error registering service with slp %i",
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/* Now that we're done using slp, close the slp handle */
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/* Set up a timer to refresh the service records */
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if (timeout != SLP_LIFETIME_MAXIMUM)
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if (signal (SIGALRM, do_refresh) == SIG_ERR)
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log_msg ("SLP: error establishing signal handler\n");
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alarm (timeout - 15);
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SLPError callbackerr;
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log_msg ("URL not registerd!");
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err = SLPOpen ("en", SLP_FALSE, &hslp);
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log_msg ("Error opening slp handle %i", err);
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/* Disable possibel alarm call. */
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/* DeRegister a service with SLP */
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err = SLPDereg (hslp, url, ypservSLPRegReport, &callbackerr);
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/* err may contain an error code that occurred as the slp library */
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/* _prepared_ to make the call. */
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if ((err != SLP_OK) || (callbackerr != SLP_OK))
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log_msg ("Error registering service with slp %i", err);
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/* callbackerr may contain an error code (that was assigned through */
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/* the callback cookie) that occurred as slp packets were sent on */
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if( callbackerr != SLP_OK)
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log_msg ("Error registering service with slp %i",
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/* Now that we're done using slp, close the slp handle */
added
removed
ypserv-2.17/ypserv/reg_slp.c
