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+/*
+ * CU sudo version 1.3.1 (based on Root Group sudo version 1.1)
+ *
+ * This software comes with no waranty whatsoever, use at your own risk.
+ *
+ * Please send bugs, changes, problems to sudo-bugs.cs.colorado.edu
+ *
+ */
+
+/*
+ *  sudo version 1.1 allows users to execute commands as root
+ *  Copyright (C) 1991  The Root Group, Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 1, or (at your option)
+ *  any later version.
+ *
+ *  This program 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 this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ **************************************************************************
+ *
+ * parse.c, sudo project
+ * David R. Hieb
+ * March 18, 1991
+ *
+ * routines to implement and maintain the parsing and list management.
+ */
+
+#ifndef lint
+static char rcsid[] = "$Id$";
+#endif /* lint */
+
+#include "config.h"
+
+#include <stdio.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif /* HAVE_STRING_H */
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif /* HAVE_STRINGS_H */
+#ifdef HAVE_MALLOC_H 
+#include <malloc.h>
+#endif /* HAVE_MALLOC_H */ 
+#include <ctype.h>
+#include <sys/param.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <sys/stat.h>
+#include <dirent.h>
+
+
+#include "sudo.h"
+
+/*
+ * Globals
+ */
+int parse_error = FALSE;
+
+char *cmnd;
+char *user;
+char host[MAXHOSTNAMELEN+1];
+char cwd[MAXPATHLEN+1];
+char *epasswd = NULL;
+char **Argv;
+int  Argc;
+uid_t uid;
+
+/*
+ * return TRUE if cmnd matches, in the sudo sense,
+ * the pathname in path; otherwise, return FALSE
+ */
+int
+path_matches(cmnd, path)
+char *cmnd, *path;
+{
+    int clen, plen;
+
+    if (cmnd == NULL)
+       return FALSE;
+
+    plen = strlen(path);
+    if (path[plen] != '/')
+       return strcmp(cmnd, path) == 0;
+
+    clen = strlen(cmnd);
+    if (clen < plen + 1)
+       /* path cannot be the parent dir of cmnd */
+       return FALSE;
+
+    if (strchr(cmnd + plen + 1, '/') != NULL)
+       /* path could only be an anscestor of cmnd -- */
+       /* ignoring, of course, things like // & /./  */
+       return FALSE;
+
+    /* see whether path is the prefix of cmnd */
+    return strncmp(cmnd, path, plen) == 0;
+}
+
+int
+addr_matches(n)
+char *n;
+{
+    struct in_addr **in;
+    struct hostent *he;
+    int ntwk;
+
+    ntwk = inet_network(n);
+
+    if ((he = gethostbyname(host)) == NULL)
+       return FALSE;
+    if (he->h_length != sizeof **in) {
+       yyerror("IP addrs broken\n");
+       return FALSE;
+    }
+    for (in = (struct in_addr **) he->h_addr_list; *in; in++)
+       if (inet_netof(**in) == ntwk)
+           return TRUE;
+
+    return FALSE;
+}
+
+void
+set_perms(i)
+int i;
+{
+    return;
+}
+
+main(argc, argv)
+int argc;
+char **argv;
+{
+#ifdef YYDEBUG
+    extern int yydebug;
+    yydebug = 1;
+#endif
+
+    if (argc != 4) {
+       fprintf(stderr, "usage: %s <command> <user> <host>\n", argv[0]);
+       exit(1);
+    }
+
+    Argv = argv;
+    Argc = argc;
+
+    cmnd = argv[1];
+    user = argv[2];
+    strcpy(host, argv[3]);
+
+    if (yyparse() || parse_error)
+       printf("doesn't parse.\n");
+    else {
+       printf("parses OK.\n\n");
+       if (top == 0)
+           printf("User %s not found\n", user);
+       else while (top) {
+           printf("[%d]\n", top-1);
+           printf("user_match: %d\n", user_matches);
+           printf("host_match: %d\n", host_matches);
+           printf("cmnd_match: %d\n", cmnd_matches);
+           top--;
+       }
+    }
+
+    /* dump aliases */
+    printf("Matching Aliases --\n");
+    dumpaliases();
+}