efa7a97b |
1 | /* -*-c-*- |
2 | * |
3 | * $Id: path.h,v 1.1 1999/04/06 20:12:07 mdw Exp $ |
4 | * |
5 | * Check a path for safety |
6 | * |
7 | * (c) 1999 Mark Wooding |
8 | */ |
9 | |
10 | /*----- Licensing notice --------------------------------------------------* |
11 | * |
12 | * This file is part of chkpath. |
13 | * |
14 | * chkpath is free software; you can redistribute it and/or modify |
15 | * it under the terms of the GNU General Public License as published by |
16 | * the Free Software Foundation; either version 2 of the License, or |
17 | * (at your option) any later version. |
18 | * |
19 | * chkpath is distributed in the hope that it will be useful, |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
22 | * GNU General Public License for more details. |
23 | * |
24 | * You should have received a copy of the GNU General Public License |
25 | * along with chkpath; if not, write to the Free Software Foundation, |
26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
27 | */ |
28 | |
29 | /*----- Revision history --------------------------------------------------* |
30 | * |
31 | * $Log: path.h,v $ |
32 | * Revision 1.1 1999/04/06 20:12:07 mdw |
33 | * Initial revision |
34 | * |
35 | */ |
36 | |
37 | #ifndef PATH_H |
38 | #define PATH_H |
39 | |
40 | #ifdef __cplusplus |
41 | extern "C" { |
42 | #endif |
43 | |
44 | /*----- Header files ------------------------------------------------------*/ |
45 | |
46 | #include <limits.h> |
47 | #include <sys/types.h> |
48 | |
49 | /*----- Data structures ---------------------------------------------------*/ |
50 | |
51 | /* --- Search request --- * |
52 | * |
53 | * This contains parameters from the caller to control what problems are |
54 | * looked for, and what to do when they're found. |
55 | */ |
56 | |
57 | struct chkpath { |
58 | uid_t cp_uid; /* Uid that's considered OK */ |
59 | gid_t cp_gid[NGROUPS_MAX + 1]; /* Array of groups that are OK */ |
60 | int cp_gids; /* Number of groups in the array */ |
61 | int cp_verbose; /* Verbosity level to spit up */ |
62 | int cp_what; /* What things to check for */ |
63 | void (*cp_report)(int /*what*/, int /*verb*/, |
64 | const char */*dir*/, const char */*msg*/, |
65 | void */*p*/); |
66 | void *cp_arg; /* Argument for cp_report */ |
67 | }; |
68 | |
69 | /* --- Flags for `@what@' fields in the above --- */ |
70 | |
71 | #define CP_ERROR 1 /* Error report */ |
72 | #define CP_WRWORLD 2 /* Check write by world */ |
73 | #define CP_WRGRP 4 /* Check write by any group */ |
74 | #define CP_WROTHGRP 8 /* Check write by other group */ |
75 | #define CP_WROTHUSR 16 /* Check write by other user */ |
76 | #define CP_SYMLINK 32 /* Report symbolic links */ |
77 | #define CP_REPORT 64 /* Make user-readable reports */ |
78 | #define CP_STICKYOK 128 /* Don't care if sticky is set */ |
79 | |
80 | /*----- Functions provided ------------------------------------------------*/ |
81 | |
82 | /* --- @path_check@ --- * |
83 | * |
84 | * Arguments: @const char *p@ = directory name which needs checking |
85 | * @struct chkpath *cp@ = caller parameters for the check |
86 | * |
87 | * Returns: Zero if all is well, otherwise bitmask of problems. |
88 | * |
89 | * Use: Scrutinises a directory path to see what evil things other |
90 | * users could do to it. |
91 | */ |
92 | |
93 | extern int path_check(const char */*p*/, struct chkpath */*cp*/); |
94 | |
95 | /* --- @path_setids@ --- * |
96 | * |
97 | * Arguments: @struct chkpath *cp@ = pointer to block to fill in |
98 | * |
99 | * Returns: --- |
100 | * |
101 | * Use: Fills in the user ids and things in the structure. |
102 | */ |
103 | |
104 | extern void path_setids(struct chkpath */*cp*/); |
105 | |
106 | /*----- That's all, folks -------------------------------------------------*/ |
107 | |
108 | #ifdef __cplusplus |
109 | } |
110 | #endif |
111 | |
112 | #endif |