| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id: servutil.c,v 1.5 2004/04/08 01:36:17 mdw Exp $ |
| 4 | * |
| 5 | * Various handy server-only utilities |
| 6 | * |
| 7 | * (c) 2001 Straylight/Edgeware |
| 8 | */ |
| 9 | |
| 10 | /*----- Licensing notice --------------------------------------------------* |
| 11 | * |
| 12 | * This file is part of Trivial IP Encryption (TrIPE). |
| 13 | * |
| 14 | * TrIPE 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 | * TrIPE 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 TrIPE; if not, write to the Free Software Foundation, |
| 26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 27 | */ |
| 28 | |
| 29 | /*----- Header files ------------------------------------------------------*/ |
| 30 | |
| 31 | #include "tripe.h" |
| 32 | |
| 33 | /*----- Global variables --------------------------------------------------*/ |
| 34 | |
| 35 | octet buf_i[PKBUFSZ], buf_o[PKBUFSZ], buf_t[PKBUFSZ]; |
| 36 | |
| 37 | /*----- Main code ---------------------------------------------------------*/ |
| 38 | |
| 39 | /* --- @mpstr@ --- * |
| 40 | * |
| 41 | * Arguments: @mp *m@ = a multiprecision integer |
| 42 | * |
| 43 | * Returns: A pointer to the integer's textual representation. |
| 44 | * |
| 45 | * Use: Converts a multiprecision integer to a string. Corrupts |
| 46 | * @buf_t@. |
| 47 | */ |
| 48 | |
| 49 | const char *mpstr(mp *m) |
| 50 | { |
| 51 | if (mp_writestring(m, (char *)buf_t, sizeof(buf_t), 10)) |
| 52 | return ("<failed>"); |
| 53 | return ((const char *)buf_t); |
| 54 | } |
| 55 | |
| 56 | /* --- @gestr@ --- * |
| 57 | * |
| 58 | * Arguments: @group *g@ = a group |
| 59 | * @ge *x@ = a group element |
| 60 | * |
| 61 | * Returns: A pointer to the element's textual representation. |
| 62 | * |
| 63 | * Use: Converts a group element to a string. Corrupts |
| 64 | * @buf_t@. |
| 65 | */ |
| 66 | |
| 67 | const char *gestr(group *g, ge *x) |
| 68 | { |
| 69 | if (group_writestring(g, x, (char *)buf_t, sizeof(buf_t))) |
| 70 | return ("<failed>"); |
| 71 | return ((const char *)buf_t); |
| 72 | } |
| 73 | |
| 74 | /* --- @timestr@ --- * |
| 75 | * |
| 76 | * Arguments: @time_t t@ = a time to convert |
| 77 | * |
| 78 | * Returns: A pointer to a textual representation of the time. |
| 79 | * |
| 80 | * Use: Converts a time to a textual representation. Corrupts |
| 81 | * @buf_t@. |
| 82 | */ |
| 83 | |
| 84 | const char *timestr(time_t t) |
| 85 | { |
| 86 | struct tm *tm; |
| 87 | if (!t) |
| 88 | return ("NEVER"); |
| 89 | tm = localtime(&t); |
| 90 | strftime((char *)buf_t, sizeof(buf_t), "%Y-%m-%dT%H:%M:%S", tm); |
| 91 | return ((const char *)buf_t); |
| 92 | } |
| 93 | |
| 94 | /*----- That's all, folks -------------------------------------------------*/ |