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-rw-r--r--lib/ypserv_conf.c656
1 files changed, 656 insertions, 0 deletions
diff --git a/lib/ypserv_conf.c b/lib/ypserv_conf.c
new file mode 100644
index 0000000..b199799
--- /dev/null
+++ b/lib/ypserv_conf.c
@@ -0,0 +1,656 @@
+/* Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2006, 2008, 2011, 2013, 2014 Thorsten Kukuk
+ Author: Thorsten Kukuk <kukuk@suse.de>
+
+ The YP Server is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ version 2 as published by the Free Software Foundation.
+
+ The YP Server is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public
+ License along with the YP Server; see the file COPYING. If
+ not, write to the Free Software Foundation, Inc., 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA. */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <alloca.h>
+#include <unistd.h>
+
+#include "log_msg.h"
+#include "ypserv_conf.h"
+
+int dns_flag = 0;
+int slp_flag = 0;
+unsigned long int slp_timeout = 3600;
+int xfr_check_port = 0;
+char *trusted_master = NULL;
+/* cached_filehandles (how many databases will be cached):
+ big -> slow list searching, we go 3 times through the list.
+ little -> have to close/open very often.
+ We now uses 30, because searching 3 times in the list is faster
+ then reopening the database.
+ You can open max. 255 file handles.
+*/
+int cached_filehandles = 30;
+
+
+static int
+getipnr (char *n, char *network, char *netmask)
+{
+ char *m;
+ size_t i;
+ int pw, pm;
+ char buf[20];
+
+ pw = pm = 0;
+
+ m = strtok (n, "/");
+
+ sscanf (m, "%19s", buf);
+
+ for (i = 0; i < strlen (buf); i++)
+ if ((buf[i] < '0' || buf[i] > '9') && buf[i] != '.')
+ return 1;
+ else if (buf[i] == '.')
+ ++pw;
+
+ strcpy (network, buf);
+ switch (pw)
+ {
+ case 0:
+ strcat (network, ".0.0.0");
+ ++pw;
+ break;
+ case 1:
+ if (network[strlen (network) - 1] == '.')
+ strcat (network, "0.0.0");
+ else
+ {
+ strcat (network, ".0.0");
+ pw++;
+ }
+ break;
+ case 2:
+ if (network[strlen (network) - 1] == '.')
+ strcat (network, "0.0");
+ else
+ {
+ strcat (network, ".0");
+ pw++;
+ }
+ break;
+ case 3:
+ if (network[strlen (network) - 1] == '.')
+ strcat (network, "0");
+ else
+ pw++;
+ break;
+ default:
+ return 1;
+ break;
+ }
+
+ m = strtok (NULL, "/");
+
+ if ((m != NULL) && (strlen (m) != 0))
+ {
+ sscanf (m, "%s", buf);
+
+ for (i = 0; i < strlen (buf); i++)
+ if ((buf[i] < '0' || buf[i] > '9') && buf[i] != '.')
+ return 1;
+ else if (buf[i] == '.')
+ pm++;
+
+ strcpy (netmask, buf);
+ switch (pm)
+ {
+ case 0:
+ strcat (netmask, ".0.0.0");
+ break;
+ case 1:
+ if (netmask[strlen (netmask) - 1] == '.')
+ strcat (netmask, "0.0.0");
+ else
+ strcat (netmask, ".0.0");
+ break;
+ case 2:
+ if (netmask[strlen (netmask) - 1] == '.')
+ strcat (netmask, "0.0");
+ else
+ strcat (netmask, ".0");
+ break;
+ case 3:
+ if (netmask[strlen (netmask) - 1] == '.')
+ strcat (netmask, "0");
+ break;
+ default:
+ return 1;
+ }
+ }
+ else
+ switch (pw)
+ {
+ case 1:
+ strcpy (netmask, "255.0.0.0");
+ break;
+ case 2:
+ strcpy (netmask, "255.255.0.0");
+ break;
+ case 3:
+ strcpy (netmask, "255.255.255.0");
+ break;
+ case 4:
+ strcpy (netmask, "255.255.255.255");
+ break;
+ default:
+ return 1;
+ }
+ return 0;
+}
+
+conffile_t *
+load_ypserv_conf (const char *path)
+{
+ FILE *in;
+ int c;
+ char *cp;
+ char buf1[1025], buf2[1025] = "", buf3[1025];
+ long line = 0;
+ conffile_t *ptr = NULL, *work = NULL;
+ char *filename = alloca (strlen (path) + sizeof ("/ypserv.conf") + 1);
+
+ cp = stpcpy (filename, path);
+ strcpy (cp, "/ypserv.conf");
+ if ((in = fopen (filename, "r")) == NULL)
+ {
+ if (debug_flag)
+ log_msg ("WARNING: %s not found!", filename);
+ return NULL;
+ }
+
+ while ((c = fgetc (in)) != EOF)
+ { /*while */
+ line++;
+ switch (tolower (c))
+ {
+ case 'F':
+ case 'f':
+ {
+ size_t i, j;
+ unsigned long files = 30;
+
+ if (fgets (buf1, sizeof (buf1) - 1, in) == NULL)
+ {
+ log_msg ("Read error in line %d => Ignore line", line);
+ break;
+ }
+
+ i = 0;
+ buf1[sizeof (buf1) - 1] = '\0';
+ while (c != ':' && i <= strlen (buf1))
+ {
+ if ((c == ' ') || (c == '\t'))
+ break;
+ buf2[i] = c;
+ buf2[i + 1] = '\0';
+ c = buf1[i];
+ ++i;
+ }
+
+ while ((buf1[i - 1] != ':') && (i <= strlen (buf1)))
+ ++i;
+
+ if ((buf1[i - 1] == ':') && (strcasecmp (buf2, "files") == 0))
+ {
+ while (((buf1[i] == ' ') || (buf1[i] == '\t')) &&
+ (i <= strlen (buf1)))
+ ++i;
+ j = 0;
+ while ((buf1[i] != '\0') && (buf1[i] != '\n'))
+ buf3[j++] = buf1[i++];
+ buf3[j] = 0;
+
+ sscanf (buf3, "%lu", &files);
+ }
+ else
+ log_msg ("Parse error in line %d: => Ignore line", line);
+
+ cached_filehandles = files;
+
+ if (cached_filehandles > 255)
+ cached_filehandles = 255;
+
+ if (debug_flag)
+ log_msg ("ypserv.conf: files: %lu", files);
+ break;
+ }
+ case 'D':
+ case 'd':
+ {
+ size_t i, j;
+
+ if (fgets (buf1, sizeof (buf1) - 1, in) == NULL)
+ {
+ log_msg ("Read error in line %d => Ignore line", line);
+ break;
+ }
+
+ i = 0;
+ while (c != ':' && i <= strlen (buf1))
+ {
+ if ((c == ' ') || (c == '\t'))
+ break;
+ buf2[i] = c;
+ buf2[i + 1] = '\0';
+ c = buf1[i];
+ i++;
+ }
+
+ while ((buf1[i - 1] != ':') && (i <= strlen (buf1)))
+ i++;
+
+ if ((buf1[i - 1] == ':') && (strcasecmp (buf2, "dns") == 0))
+ {
+ if (!dns_flag) /* Do not overwrite parameter */
+ {
+ while (((buf1[i] == ' ') || (buf1[i] == '\t')) &&
+ (i <= strlen (buf1)))
+ i++;
+ j = 0;
+ while ((buf1[i] != '\0') && (buf1[i] != '\n'))
+ buf3[j++] = buf1[i++];
+ buf3[j] = 0;
+
+ sscanf (buf3, "%s", buf2);
+ if (strcasecmp (buf2, "yes") == 0)
+ dns_flag = 1;
+ else if (strcasecmp (buf2, "no") == 0)
+ dns_flag = 0;
+ else
+ log_msg ("Unknown dns option in line %d: => Ignore line",
+ line);
+ }
+ }
+ else
+ log_msg ("Parse error in line %d: => Ignore line", line);
+
+ if (debug_flag)
+ log_msg ("ypserv.conf: dns: %d", dns_flag);
+ break;
+ }
+ case 'S':
+ case 's':
+ { /* sunos_kludge / slp */
+ size_t i;
+
+ if (fgets (buf1, sizeof (buf1) - 1, in) == NULL)
+ {
+ log_msg ("Read error in line %d => Ignore line", line);
+ break;
+ }
+
+ i = 0;
+ while (c != ':' && i <= strlen (buf1))
+ {
+ if ((c == ' ') || (c == '\t'))
+ break;
+ buf2[i] = c;
+ buf2[i + 1] = '\0';
+ c = buf1[i];
+ i++;
+ }
+
+ while ((buf1[i - 1] != ':') && (i <= strlen (buf1)))
+ i++;
+
+ if ((buf1[i - 1] == ':') && (strcasecmp (buf2, "sunos_kludge") == 0))
+ {
+ log_msg ("sunos_kludge (line %d) is not longer supported.",
+ line);
+ }
+
+ if ((buf1[i - 1] == ':') && (strcasecmp (buf2, "slp") == 0))
+ {
+ size_t j;
+
+ while (((buf1[i] == ' ') || (buf1[i] == '\t')) &&
+ (i <= strlen (buf1)))
+ i++;
+ j = 0;
+ while ((buf1[i] != '\0') && (buf1[i] != '\n'))
+ buf3[j++] = buf1[i++];
+ buf3[j] = 0;
+
+ sscanf (buf3, "%s", buf2);
+ if (strcasecmp (buf2, "yes") == 0)
+ slp_flag = 1;
+ else if (strcasecmp (buf2, "domain") == 0)
+ slp_flag = 2;
+ else if (strcasecmp (buf2, "no") == 0)
+ slp_flag = 0;
+ else
+ log_msg ("Unknown slp option in line %d: => Ignore line",
+ line);
+
+ if (debug_flag)
+ log_msg ("ypserv.conf: slp: %d", slp_flag);
+#if !USE_SLP
+ if (slp_flag != 0)
+ log_msg ("Support for SLP (line %d) is not compiled in.",
+ line);
+#endif
+ }
+ else if ((buf1[i - 1] == ':') &&
+ (strcasecmp (buf2, "slp_timeout") == 0))
+ {
+ size_t j;
+
+ while (((buf1[i] == ' ') || (buf1[i] == '\t')) &&
+ (i <= strlen (buf1)))
+ i++;
+ j = 0;
+ while ((buf1[i] != '\0') && (buf1[i] != '\n'))
+ buf3[j++] = buf1[i++];
+ buf3[j] = 0;
+
+ sscanf (buf3, "%lu", &slp_timeout);
+
+ if (debug_flag)
+ log_msg ("ypserv.conf: slp_timeout: %lu", slp_timeout);
+ }
+ else
+ log_msg ("Parse error in line %d: => Ignore line", line);
+
+ break;
+ }
+ case 'T':
+ case 't':
+ { /* tryresolve / trusted_master */
+ size_t i, j;
+
+ if (fgets (buf1, sizeof (buf1) - 1, in) == NULL)
+ {
+ log_msg ("Read error in line %d => Ignore line", line);
+ break;
+ }
+
+ i = 0;
+ while (c != ':' && i <= strlen (buf1))
+ {
+ if ((c == ' ') || (c == '\t'))
+ break;
+ buf2[i] = c;
+ buf2[i + 1] = '\0';
+ c = buf1[i];
+ i++;
+ }
+
+ while ((buf1[i - 1] != ':') && (i <= strlen (buf1)))
+ i++;
+
+ if ((buf1[i - 1] == ':') && (strcasecmp (buf2, "tryresolve") == 0))
+ {
+ log_msg ("tryresolve (line %d) is not longer supported.",
+ line);
+ break;
+ }
+
+ if ((buf1[i - 1] == ':') && (strcasecmp (buf2, "trusted_master") == 0))
+ {
+ while (((buf1[i] == ' ') || (buf1[i] == '\t')) &&
+ (i <= strlen (buf1)))
+ i++;
+ j = 0;
+ while ((buf1[i] != '\0') && (buf1[i] != '\n'))
+ buf3[j++] = buf1[i++];
+ buf3[j] = 0;
+
+ sscanf (buf3, "%s", buf2);
+ trusted_master = strdup (buf2);
+ }
+ else
+ log_msg ("Parse error in line %d: => Ignore line", line);
+
+ if (debug_flag)
+ log_msg ("ypserv.conf: trusted_master: %s", trusted_master);
+ break;
+ }
+ case 'X':
+ case 'x':
+ { /* xfr_check_port */
+ size_t i, j;
+
+ if (fgets (buf1, sizeof (buf1) - 1, in) == NULL)
+ {
+ log_msg ("Read error in line %d => Ignore line", line);
+ break;
+ }
+
+ i = 0;
+ while (c != ':' && i <= strlen (buf1))
+ {
+ if ((c == ' ') || (c == '\t'))
+ break;
+ buf2[i] = c;
+ buf2[i + 1] = '\0';
+ c = buf1[i];
+ i++;
+ }
+
+ while ((buf1[i - 1] != ':') && (i <= strlen (buf1)))
+ i++;
+
+ if ((buf1[i - 1] == ':') && (strcasecmp (buf2, "xfr_check_port") == 0))
+ {
+ while (((buf1[i] == ' ') || (buf1[i] == '\t')) &&
+ (i <= strlen (buf1)))
+ i++;
+ j = 0;
+ while ((buf1[i] != '\0') && (buf1[i] != '\n'))
+ buf3[j++] = buf1[i++];
+ buf3[j] = 0;
+
+ sscanf (buf3, "%s", buf2);
+ if (strcasecmp (buf2, "yes") == 0)
+ xfr_check_port = 1;
+ else if (strcasecmp (buf2, "no") == 0)
+ xfr_check_port = 0;
+ else
+ log_msg ("Unknown xfr_check_port option in line %d: => Ignore line",
+ line);
+ }
+ else
+ log_msg ("Parse error in line %d: => Ignore line", line);
+
+ if (debug_flag)
+ log_msg ("ypserv.conf: xfr_check_port: %d", xfr_check_port);
+ break;
+ }
+ case '1': case '2': case '3':
+ case '4': case '5': case '6':
+ case '7': case '8': case '9':
+ case '*':
+ {
+ char *n, *d, *m, *s, *p, *f;
+ conffile_t *tmp;
+
+ buf1[0] = c;
+ if (fgets (&buf1[1], sizeof (buf1) - 2, in) == NULL)
+ {
+ log_msg ("Read error in line %d => Ignore line", line);
+ break;
+ }
+
+ n = strtok (buf1, ":");
+ if (n == NULL)
+ {
+ log_msg ("Parse error in line %d => Ignore line", line);
+ break;
+ }
+ d = strtok (NULL, ":");
+ if (d == NULL)
+ {
+ log_msg ("No domain given in line %d => Ignore line", line);
+ break;
+ }
+ m = strtok (NULL, ":");
+ if (m == NULL)
+ {
+ log_msg ("No map given in line %d => Ignore line", line);
+ break;
+ }
+
+ s = strtok (NULL, ":");
+ if (s == NULL)
+ {
+ log_msg ("No security entry in line %d => Ignore line", line);
+ break;
+ }
+ p = strtok (NULL, ":");
+ if (p != NULL && strlen (p) != 0)
+ f = strtok (NULL, ":");
+ else
+ f = NULL;
+
+ if ((tmp = malloc (sizeof (conffile_t))) == NULL)
+ {
+ log_msg ("ERROR: could not allocate enough memory! [%s|%d]", __FILE__, __LINE__);
+ exit (1);
+ }
+ tmp->next = NULL;
+
+ if (c == '*')
+ {
+#if defined(HAVE_INET_ATON)
+ inet_aton ("0.0.0.0", &tmp->network);
+ inet_aton ("0.0.0.0", &tmp->netmask);
+#else
+ tmp->network.s_addr = inet_addr ("0.0.0.0");
+ tmp->netmask.s_addr = inet_addr ("0.0.0.0");
+#endif
+ }
+ else
+ {
+ if (getipnr (n, buf2, buf3) != 0)
+ {
+ log_msg ("Malformed network/netmask entry in line %d", line);
+ free (tmp->map);
+ free (tmp);
+ break;
+ }
+#if defined(HAVE_INET_ATON)
+ inet_aton (buf2, &tmp->network);
+ inet_aton (buf3, &tmp->netmask);
+#else
+ tmp->network.s_addr = inet_addr (buf2);
+ tmp->netmask.s_addr = inet_addr (buf3);
+#endif
+ }
+ sscanf (d, "%s", buf2);
+ tmp->domain = strdup (buf2);
+ sscanf (m, "%s", buf2);
+ tmp->map = strdup (buf2);
+
+ sscanf (s, "%s", buf2);
+
+ if (strcasecmp (buf2, "none") == 0)
+ tmp->security = SEC_NONE;
+ else if (strcasecmp (buf2, "deny") == 0)
+ tmp->security = SEC_DENY;
+ else if (strcasecmp (buf2, "port") == 0)
+ tmp->security = SEC_PORT;
+ else
+ {
+ log_msg ("Unknown security option \"%s\" in line %d => Ignore line",
+ buf2, line);
+ free (tmp->map);
+ free (tmp);
+ break;
+ }
+
+ if (f != NULL)
+ {
+ log_msg ("Bogus data \"%s\" in line %d => Ignore line", f,
+ line);
+ free (tmp->map);
+ free (tmp);
+ }
+ if (debug_flag)
+ {
+ log_msg ("ypserv.conf: %s/%s:%s:%s:%d",
+ inet_ntoa (tmp->network), inet_ntoa (tmp->netmask),
+ tmp->domain, tmp->map, tmp->security);
+ }
+
+ if (work == NULL)
+ {
+ work = tmp;
+ ptr = work;
+ }
+ else
+ {
+ work->next = tmp;
+ work = work->next;
+ }
+ break;
+ }
+ case ' ':
+ case '\t':
+ line--; /* Ignore Character, no new line */
+ break;
+ case '\n':
+ break; /* Ignore newline */
+ case '#':
+ if (fgets (buf1, sizeof (buf1) - 1, in) == NULL)
+ log_msg ("Read error in line %d => Ignore line", line);
+ break;
+ default:
+ if (fgets (buf1, sizeof (buf1) - 1, in) == NULL) {};
+ log_msg ("Parse error in line %d: %c%s", line, c, buf1);
+ break;
+ }
+ }
+ fclose (in);
+
+ return ptr;
+}
+
+#if 0
+
+int debug_flag = 1;
+int dns_flag = 0;
+
+void
+main ()
+{
+ conffile_t *ptr;
+
+ ptr = load_ypserv_conf (".");
+
+ log_msg ("Output:");
+
+ while (ptr != NULL)
+ {
+ log_msg ("%s/%s:%s:%d:%d",
+ inet_ntoa (ptr->network), inet_ntoa (ptr->netmask), ptr->map,
+ ptr->security, ptr->mangle);
+ ptr = ptr->next;
+ }
+
+}
+
+#endif
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