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/* LTSP Graphical GTK Greeter
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* Copyright (C) 2007 Francis Giraldeau, <francis.giraldeau@revolutionlinux.com>
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* - Queries servers to get information about them
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program 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
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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#include <glib/gi18n.h>
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#include <sys/utsname.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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ldminfo_init(GHashTable ** ldminfo_hash, GList ** host_list,
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const char *ldm_server)
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char **hosts_char = NULL;
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ldminfo *ldm_host_info = NULL;
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*ldminfo_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
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hosts_char = g_strsplit(ldm_server, " ", -1);
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for (i = 0; hosts_char != NULL && hosts_char[i] != NULL; i++) {
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/* Initialize to default values */
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ldm_host_info = g_new0(ldminfo, 1);
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ldm_host_info->languages = NULL;
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ldm_host_info->sessions = NULL;
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ldm_host_info->rating = 0;
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ldm_host_info->state = SRV_DOWN;
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* Insert into the hash table.
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g_hash_table_insert(*ldminfo_hash, g_strdup(hosts_char[i]),
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* Populate the ldminfo structure, and determine if the host
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_ldminfo_query_one(hosts_char[i], ldm_host_info);
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* Add the host to the host list.
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*host_list = g_list_append(*host_list, g_strdup(hosts_char[i]));
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g_strfreev(hosts_char);
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* Do the query for one host and fill ldminfo struct
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* Note: for right now, we're reading files in /var/run/ldm. Francis would like
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* the host detection closer to the login and checking network availability
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* etc. What should happen here, for gutsy+1, is to call out to an
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* external script. This script will query ldminfo, perform ssh port testing,
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* etc. Things like nc -z hostname ssh, etc.
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_ldminfo_query_one(const char *hostname, ldminfo * ldm_host_info)
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int filedes, numbytes;
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char hostfile[BUFSIZ];
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snprintf(hostfile, sizeof hostfile, "/var/run/ldm/%s", hostname);
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filedes = open(hostfile, O_RDONLY);
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if ((numbytes = read(filedes, buf, MAXBUFSIZE - 1)) == -1) {
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buf[numbytes] = '\0';
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ldm_host_info->state = SRV_UP;
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_ldminfo_parse_string(buf, ldm_host_info);
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ldm_host_info->state = SRV_DOWN;
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* split string by line and then construct the ldm_host_info
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_ldminfo_parse_string(const char *s, ldminfo * ldm_host_info)
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lines = g_strsplit(s, "\n", -1);
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for (i = 0; lines != NULL && lines[i] != NULL; i++) {
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if (!g_ascii_strncasecmp(lines[i], "language:", 9)) {
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val = g_strsplit(lines[i], ":", 2);
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ldm_host_info->languages =
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g_list_append(ldm_host_info->languages, g_strdup(val[1]));
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} else if (!g_ascii_strncasecmp(lines[i], "session:", 8)) {
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val = g_strsplit(lines[i], ":", 2);
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ldm_host_info->sessions =
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g_list_append(ldm_host_info->sessions, g_strdup(val[1]));
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} else if (!g_ascii_strncasecmp(lines[i], "rating:", 7)) {
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val = g_strsplit(lines[i], ":", 2);
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ldm_host_info->rating = atoi(val[1]);
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/* Variable not supported */
added
removed
gtkgreet/ldminfo.c
