masqmail

annotate src/base64/base64.c @ 421:f37384470855

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Changed lockdir to /var/lock/masqmail; Create lockdir and piddir on startup. Moved the lockdir out of the spool dir. (When /var/lock is a ramdisk we do well to have the lock files there.) Added the new configure option --with-lockdir to change that location. Nontheless, if we run_as_user, then lock files are always stored in the spool dir directly. Instead of installing the lockdir and piddir at installation time, we create them on startup time now if they are missing. This is necessary if lockdir or piddir are a tmpfs.
author markus schnalke <meillo@marmaro.de>
date Wed, 30 May 2012 09:38:38 +0200
parents 41958685480d
children
rev   line source
meillo@367 1 /*
meillo@367 2 ** base64.c
meillo@367 3 ** Copyright 2000 (C) Oliver Kurth,
meillo@367 4 **
meillo@367 5 ** This program is free software; you can redistribute it and/or modify
meillo@367 6 ** it under the terms of the GNU General Public License as published by
meillo@367 7 ** the Free Software Foundation; either version 2 of the License, or
meillo@367 8 ** (at your option) any later version.
meillo@367 9 **
meillo@367 10 ** This program is distributed in the hope that it will be useful,
meillo@367 11 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
meillo@367 12 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
meillo@367 13 ** GNU General Public License for more details.
meillo@367 14 **
meillo@367 15 ** You should have received a copy of the GNU General Public License
meillo@367 16 ** along with this program; if not, write to the Free Software
meillo@367 17 ** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
meillo@367 18 */
meillo@0 19
meillo@0 20 /* see also RFC 1341 */
meillo@0 21
meillo@0 22 #include <glib.h>
meillo@0 23 #include <string.h>
meillo@0 24 #include "base64.h"
meillo@0 25
meillo@10 26 gchar*
meillo@366 27 base64_encode(guchar *buf, gint len)
meillo@0 28 {
meillo@10 29 guchar *outbuf, *q;
meillo@10 30 gchar enc[64];
meillo@10 31 gint i = 0, j = 0;
meillo@10 32 guint in0, in1, in2;
meillo@0 33
meillo@10 34 for (; i < 26; i++)
meillo@10 35 enc[i] = (gchar) ('A' + j++);
meillo@10 36 j = 0;
meillo@10 37 for (; i < 52; i++)
meillo@10 38 enc[i] = (gchar) ('a' + j++);
meillo@10 39 j = 0;
meillo@10 40 for (; i < 62; i++)
meillo@10 41 enc[i] = (gchar) ('0' + j++);
meillo@10 42 enc[i++] = '+';
meillo@10 43 enc[i++] = '/';
meillo@0 44
meillo@312 45 outbuf = g_malloc(((len + 3) * 8) / 6 +1);
meillo@312 46 memset(outbuf, 0, ((len + 3) * 8) / 6 +1);
meillo@10 47 q = outbuf;
meillo@0 48
meillo@10 49 i = 0;
meillo@10 50 while (i < len - 2) {
meillo@10 51 in0 = buf[i++];
meillo@10 52 in1 = buf[i++];
meillo@10 53 in2 = buf[i++];
meillo@0 54
meillo@10 55 *(q++) = enc[(in0 >> 2) & 0x3f];
meillo@10 56 *(q++) = enc[((in0 << 4) | (in1 >> 4)) & 0x3f];
meillo@10 57 *(q++) = enc[((in1 << 2) | (in2 >> 6)) & 0x3f];
meillo@10 58 *(q++) = enc[in2 & 0x3f];
meillo@10 59 }
meillo@10 60 if ((len - i) == 1) {
meillo@10 61 in0 = buf[i++];
meillo@10 62 *(q++) = enc[(in0 >> 2) & 0x3f];
meillo@10 63 *(q++) = enc[(in0 << 4) & 0x3f];
meillo@10 64 *(q++) = '=';
meillo@10 65 *(q++) = '=';
meillo@10 66 } else if ((len - i) == 2) {
meillo@10 67 in0 = buf[i++];
meillo@10 68 in1 = buf[i++];
meillo@10 69 *(q++) = enc[(in0 >> 2) & 0x3f];
meillo@10 70 *(q++) = enc[((in0 << 4) | (in1 >> 4)) & 0x3f];
meillo@10 71 *(q++) = enc[(in1 << 2) & 0x3f];
meillo@10 72 *(q++) = '=';
meillo@10 73 }
meillo@10 74 *q = 0;
meillo@0 75
meillo@10 76 return outbuf;
meillo@0 77 }
meillo@0 78
meillo@366 79 gchar *base64_decode(gchar *buf, gint *size)
meillo@10 80 {
meillo@10 81 guchar *p = buf, *q;
meillo@10 82 guint in[4];
meillo@10 83 /* gchar *out = g_malloc(((strlen(buf)+3) * 3) / 4 + 1); */
meillo@312 84 gchar *out = g_malloc((strlen(buf) + 3) + 1 +1);
meillo@312 85 memset(out, 0, (strlen(buf) + 3) + 1 +1);
meillo@10 86
meillo@10 87 q = out;
meillo@10 88 *size = 0;
meillo@10 89
meillo@10 90 *q = 0;
meillo@10 91
meillo@10 92 while (*p) {
meillo@10 93 int i = 0;
meillo@10 94 while (i < 4) {
meillo@10 95 if (!*p)
meillo@10 96 break;
meillo@10 97 if ((*p >= 'A') && (*p <= 'Z'))
meillo@10 98 in[i++] = *p - 'A';
meillo@10 99 else if ((*p >= 'a') && (*p <= 'z'))
meillo@10 100 in[i++] = (*p - 'a') + 26;
meillo@10 101 else if ((*p >= '0') && (*p <= '9'))
meillo@10 102 in[i++] = (*p - '0') + 52;
meillo@10 103 else if (*p == '+')
meillo@10 104 in[i++] = 62;
meillo@10 105 else if (*p == '/')
meillo@10 106 in[i++] = 63;
meillo@10 107 else if (*p == '=') {
meillo@10 108 in[i++] = 0;
meillo@10 109 p++;
meillo@10 110 break;
meillo@10 111 } else if ((*p != '\r') && (*p != '\n')) {
meillo@10 112 p++;
meillo@10 113 break;
meillo@10 114 }
meillo@10 115 p++;
meillo@10 116 }
meillo@10 117 if ((i == 4) || (p[-1] == '=')) {
meillo@10 118 *(q++) = ((in[0] << 2) | (in[1] >> 4));
meillo@10 119 *(q++) = ((in[1] << 4) | (in[2] >> 2));
meillo@10 120 *(q++) = ((in[2] << 6) | in[3]);
meillo@10 121 if (p[-1] == '=') {
meillo@10 122 if (i == 3) {
meillo@10 123 (*size)++;
meillo@10 124 } else if (i == 4) {
meillo@10 125 (*size) += 2;
meillo@10 126 }
meillo@10 127 } else {
meillo@10 128 *size += 3;
meillo@10 129 }
meillo@10 130 }
meillo@10 131 }
meillo@312 132 out[*size] = '\0';
meillo@10 133 return out;
meillo@10 134 }