debian/control: Replace obsolete ${Source-Version} substitution.

[checkpath] / chkpath.c

diff --git a/chkpath.c b/chkpath.c
index e90b0d78c019b124e9fdc84713766f7181dd17ff..a44570e5816e47252e4fab347ccfebb95b042a10 100644 (file)
--- a/chkpath.c
+++ b/chkpath.c
@@ -1,13 +1,11 @@
 /* -*-c-*-
- *
- * $Id: chkpath.c,v 1.1 1999/04/06 20:12:07 mdw Exp $
  *
  * Check a user's file search path
  *
  * (c) 1999 Mark Wooding
  */
 
-/*----- Licensing notice --------------------------------------------------* 
+/*----- Licensing notice --------------------------------------------------*
  *
  * This file is part of chkpath.
  *
@@ -15,62 +13,56 @@
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
- * 
+ *
  * chkpath 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 chkpath; if not, write to the Free Software Foundation,
  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
-/*----- Revision history --------------------------------------------------* 
- *
- * $Log: chkpath.c,v $
- * Revision 1.1  1999/04/06 20:12:07  mdw
- * Initial revision
- *
- */
-
 /*----- Header files ------------------------------------------------------*/
 
+#include "config.h"
+
 #include <errno.h>
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
+#include <pwd.h>
+#include <grp.h>
+
 #include <mLib/alloc.h>
 #include <mLib/mdwopt.h>
 #include <mLib/quis.h>
 #include <mLib/report.h>
 
-#include "path.h"
+#include "checkpath.h"
+#include "utils.h"
 
 /*----- Main code ---------------------------------------------------------*/
 
-static void report(int what, int verbose,
+/* --- @report@ --- */
+
+static void report(unsigned what, int verbose,
                   const char *p, const char *msg,
                   void *arg)
-{
-  moan("%s", msg);
-}
+  { moan("%s", msg); }
 
 /* --- @usage@ --- */
 
 static void usage(FILE *fp)
-{
-  fprintf(fp, "Usage: %s [-vqstp] [PATH...]\n", QUIS);
-}
+  { fprintf(fp, "Usage: %s [-vqstp] [-g NAME] [PATH...]\n", QUIS); }
 
 /* --- @version@ --- */
 
 static void version(FILE *fp)
-{
-  fprintf(fp, "%s version %s\n", QUIS, VERSION);
-}
+  { fprintf(fp, "%s version %s\n", QUIS, VERSION); }
 
 /* --- @help@ --- */
 
@@ -96,6 +88,7 @@ Options provided are:\n\
 -s, --sticky           Consider sticky directories secure against\n\
                        modification by world and group (not recommended).\n\
 -t, --trust-group      Consider other members of your group trustworthy.\n\
+-g, --group NAME       Consider members of group NAME trustworthy.\n\
 -p, --print            Write the secure path elements to standard output.\n\
 ",
        fp);
@@ -103,16 +96,14 @@ Options provided are:\n\
 
 int main(int argc, char *argv[])
 {
-  int bad = 0;
+  unsigned bad = 0;
   int i;
   char *p, *q, *path;
-  struct chkpath cp;
+  struct checkpath cp;
   int f = 0;
 
-  enum {
-    f_print = 1,
-    f_colon = 2
-  };
+#define f_print 1u
+#define f_colon 2u
 
   /* --- Initialize the world --- */
 
@@ -121,27 +112,27 @@ int main(int argc, char *argv[])
   /* --- Set up path scanning defaults --- */
 
   cp.cp_verbose = 1;
-  cp.cp_what = (CP_WRWORLD | CP_WRGRP | CP_WROTHUSR |
-               CP_ERROR | CP_REPORT | CP_SYMLINK);
+  cp.cp_what = (CP_PROBLEMS | CP_REPORT | CP_SYMLINK) & ~CP_WRGRP;
   cp.cp_report = report;
   cp.cp_arg = 0;
-  path_setids(&cp);
+  cp.cp_gids = 0;
+  checkpath_setuid(&cp);
 
   /* --- Parse the options --- */
 
   for (;;) {
     static struct option opts[] = {
       { "help",                0,              0,      'h' },
-      { "version",     0,              0,      'V' },
+      { "version",     0,              0,      'V' },
       { "usage",       0,              0,      'u' },
-      { "verbose",     0,              0,      'v' },
+      { "verbose",     0,              0,      'v' },
       { "quiet",       0,              0,      'q' },
       { "sticky",      0,              0,      's' },
       { "trust-group", 0,              0,      't' },
       { "print",       0,              0,      'p' },
       { 0,             0,              0,      0 }
     };
-    int i = mdwopt(argc, argv, "hVu vqstp", opts, 0, 0, 0);
+    int i = mdwopt(argc, argv, "hVu" "vqstpg:", opts, 0, 0, 0);
 
     if (i < 0)
       break;
@@ -166,7 +157,11 @@ int main(int argc, char *argv[])
        cp.cp_what |= CP_STICKYOK;
        break;
       case 't':
-       cp.cp_what = (cp.cp_what & ~CP_WRGRP) | CP_WROTHGRP;
+       if (checkpath_setgid(&cp) || checkpath_setgroups(&cp))
+         die(1, "too many groups");
+       break;
+      case 'g':
+       allowgroup(&cp, optarg);
        break;
       case 'p':
        f |= f_print;
@@ -195,7 +190,7 @@ int main(int argc, char *argv[])
     p = xstrdup(argv[i]);
     q = strtok(p, ":");
     while (q) {
-      int b = path_check(q, &cp);
+      unsigned b = checkpath(q, &cp);
       if (!b && (f & f_print)) {
        if (f & f_colon)
          putchar(':');