| | 1 | /* -*-c-*- |
| | 2 | * |
| | 3 | * Utilities for the client and the server |
| | 4 | * |
| | 5 | * (c) 2001 Straylight/Edgeware |
| | 6 | */ |
| | 7 | |
| | 8 | /*----- Licensing notice --------------------------------------------------* |
| | 9 | * |
| | 10 | * This file is part of Trivial IP Encryption (TrIPE). |
| | 11 | * |
| | 12 | * TrIPE is free software; you can redistribute it and/or modify |
| | 13 | * it under the terms of the GNU General Public License as published by |
| | 14 | * the Free Software Foundation; either version 2 of the License, or |
| | 15 | * (at your option) any later version. |
| | 16 | * |
| | 17 | * TrIPE is distributed in the hope that it will be useful, |
| | 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| | 20 | * GNU General Public License for more details. |
| | 21 | * |
| | 22 | * You should have received a copy of the GNU General Public License |
| | 23 | * along with TrIPE; if not, write to the Free Software Foundation, |
| | 24 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| | 25 | */ |
| | 26 | |
| | 27 | #ifndef UTIL_H |
| | 28 | #define UTIL_H |
| | 29 | |
| | 30 | #ifndef CONFIG_H |
| | 31 | # include "config.h" |
| | 32 | #endif |
| | 33 | |
| | 34 | #include <sys/types.h> |
| | 35 | |
| | 36 | #ifdef __cplusplus |
| | 37 | extern "C" { |
| | 38 | #endif |
| | 39 | |
| | 40 | /*----- Macros ------------------------------------------------------------*/ |
| | 41 | |
| | 42 | /* --- @IGNORE@ --- * |
| | 43 | * |
| | 44 | * Arguments: @expr@ = an expression whose value is to be ignored |
| | 45 | * |
| | 46 | * Use: Ignores the value of an expression, even if compilers want |
| | 47 | * us not to. |
| | 48 | */ |
| | 49 | |
| | 50 | #define IGNORE(expr) do { if (expr) ; } while (0) |
| | 51 | |
| | 52 | /*----- Functions provided ------------------------------------------------*/ |
| | 53 | |
| | 54 | /* --- @u_quotify@ --- * |
| | 55 | * |
| | 56 | * Arguments: @dstr *d@ = where to write the answer |
| | 57 | * @const char *p@ = string to quotify |
| | 58 | * |
| | 59 | * Returns: --- |
| | 60 | * |
| | 61 | * Use: Quotes the given string if necessary, according to our |
| | 62 | * quoting rules. |
| | 63 | */ |
| | 64 | |
| | 65 | extern void u_quotify(dstr */*d*/, const char */*p*/); |
| | 66 | |
| | 67 | /* --- @u_getuser@ --- * |
| | 68 | * |
| | 69 | * Arguments: @const char *name@ = user name or id requested |
| | 70 | * @gid_t *gg@ = where to store corresponding gid |
| | 71 | * |
| | 72 | * Returns: Corresponding uid. |
| | 73 | * |
| | 74 | * Use: Resolves a user name into a uid. Dies on failure; suitable |
| | 75 | * for use in argument parsing. |
| | 76 | */ |
| | 77 | |
| | 78 | extern uid_t u_getuser(const char */*name*/, gid_t */*gg*/); |
| | 79 | |
| | 80 | /* --- @u_getgroup@ --- * |
| | 81 | * |
| | 82 | * Arguments: @const char *name@ = user name or id requested |
| | 83 | * |
| | 84 | * Returns: Corresponding gid. |
| | 85 | * |
| | 86 | * Use: Resolves a group name into a gid. Dies on failure; suitable |
| | 87 | * for use in argument parsing. |
| | 88 | */ |
| | 89 | |
| | 90 | extern gid_t u_getgroup(const char */*name*/); |
| | 91 | |
| | 92 | /* --- @u_setugid@ --- * |
| | 93 | * |
| | 94 | * Arguments: @uid_t u@ = user to set |
| | 95 | * @gid_t g@ = group to set |
| | 96 | * |
| | 97 | * Returns: --- |
| | 98 | * |
| | 99 | * Use: Sets user and group to the given values; aborts on failure. |
| | 100 | */ |
| | 101 | |
| | 102 | extern void u_setugid(uid_t /*u*/, gid_t /*g*/); |
| | 103 | |
| | 104 | /*----- That's all, folks -------------------------------------------------*/ |
| | 105 | |
| | 106 | #ifdef __cplusplus |
| | 107 | } |
| | 108 | #endif |
| | 109 | |
| | 110 | #endif |
~mdw / tripe / blame_incremental