Mercurial > masqmail
annotate src/base64/base64.c @ 246:4cff8638dd9b
SMTP client: tries EHLO now always first
Changed the behavior of the SMTP client. Now always an EHLO greeting
is sent, no matter what kind of greeting text the server had sent. If
the EHLO failed, an HELO greeting is tried as fall back. This is the
behavior RFC 2821 requires (section 3.2).
This change will fix setups that were not possible to sent to a
server because that requires AUTH but hadn't said ``ESMTP'' in its
greeting message.
See also: Debian bug #349211
Thanks to Steffen (inne)
author | markus schnalke <meillo@marmaro.de> |
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date | Thu, 28 Oct 2010 16:40:02 -0300 |
parents | 589c365d90b1 |
children | c74adb7c4f50 |
rev | line source |
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0 | 1 /* base64.c, Copyright 2000 (C) Oliver Kurth, |
2 * | |
3 * This program is free software; you can redistribute it and/or modify | |
4 * it under the terms of the GNU General Public License as published by | |
5 * the Free Software Foundation; either version 2 of the License, or | |
6 * (at your option) any later version. | |
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7 * |
0 | 8 * This program is distributed in the hope that it will be useful, |
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 * GNU General Public License for more details. | |
12 * | |
13 * You should have received a copy of the GNU General Public License | |
14 * along with this program; if not, write to the Free Software | |
15 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
16 */ | |
17 | |
18 /* see also RFC 1341 */ | |
19 | |
20 #include <glib.h> | |
21 #include <string.h> | |
22 #include "base64.h" | |
23 | |
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24 gchar* |
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25 base64_encode(guchar * buf, gint len) |
0 | 26 { |
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27 guchar *outbuf, *q; |
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28 gchar enc[64]; |
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29 gint i = 0, j = 0; |
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30 guint in0, in1, in2; |
0 | 31 |
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32 for (; i < 26; i++) |
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33 enc[i] = (gchar) ('A' + j++); |
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34 j = 0; |
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35 for (; i < 52; i++) |
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36 enc[i] = (gchar) ('a' + j++); |
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37 j = 0; |
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38 for (; i < 62; i++) |
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39 enc[i] = (gchar) ('0' + j++); |
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40 enc[i++] = '+'; |
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41 enc[i++] = '/'; |
0 | 42 |
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43 outbuf = g_malloc(((len + 3) * 8) / 6); |
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44 q = outbuf; |
0 | 45 |
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46 i = 0; |
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47 while (i < len - 2) { |
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48 in0 = buf[i++]; |
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49 in1 = buf[i++]; |
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50 in2 = buf[i++]; |
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51 |
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52 *(q++) = enc[(in0 >> 2) & 0x3f]; |
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53 *(q++) = enc[((in0 << 4) | (in1 >> 4)) & 0x3f]; |
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54 *(q++) = enc[((in1 << 2) | (in2 >> 6)) & 0x3f]; |
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55 *(q++) = enc[in2 & 0x3f]; |
0 | 56 } |
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57 if ((len - i) == 1) { |
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58 in0 = buf[i++]; |
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59 *(q++) = enc[(in0 >> 2) & 0x3f]; |
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60 *(q++) = enc[(in0 << 4) & 0x3f]; |
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61 *(q++) = '='; |
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62 *(q++) = '='; |
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63 } else if ((len - i) == 2) { |
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64 in0 = buf[i++]; |
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65 in1 = buf[i++]; |
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66 *(q++) = enc[(in0 >> 2) & 0x3f]; |
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67 *(q++) = enc[((in0 << 4) | (in1 >> 4)) & 0x3f]; |
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68 *(q++) = enc[(in1 << 2) & 0x3f]; |
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69 *(q++) = '='; |
0 | 70 } |
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71 *q = 0; |
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72 |
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73 return outbuf; |
0 | 74 } |
75 | |
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76 gchar *base64_decode(gchar * buf, gint * size) |
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77 { |
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78 guchar *p = buf, *q; |
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79 guint in[4]; |
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80 /* gchar *out = g_malloc(((strlen(buf)+3) * 3) / 4 + 1); */ |
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81 gchar *out = g_malloc((strlen(buf) + 3) + 1); |
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82 |
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83 q = out; |
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84 *size = 0; |
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85 |
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86 *q = 0; |
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87 |
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88 while (*p) { |
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89 int i = 0; |
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90 while (i < 4) { |
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91 if (!*p) |
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92 break; |
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93 if ((*p >= 'A') && (*p <= 'Z')) |
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94 in[i++] = *p - 'A'; |
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95 else if ((*p >= 'a') && (*p <= 'z')) |
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96 in[i++] = (*p - 'a') + 26; |
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97 else if ((*p >= '0') && (*p <= '9')) |
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98 in[i++] = (*p - '0') + 52; |
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99 else if (*p == '+') |
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100 in[i++] = 62; |
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101 else if (*p == '/') |
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102 in[i++] = 63; |
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103 else if (*p == '=') { |
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104 in[i++] = 0; |
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105 p++; |
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106 break; |
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107 } else if ((*p != '\r') && (*p != '\n')) { |
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108 p++; |
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109 break; |
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110 } |
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111 p++; |
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112 } |
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113 if ((i == 4) || (p[-1] == '=')) { |
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114 *(q++) = ((in[0] << 2) | (in[1] >> 4)); |
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115 *(q++) = ((in[1] << 4) | (in[2] >> 2)); |
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116 *(q++) = ((in[2] << 6) | in[3]); |
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117 if (p[-1] == '=') { |
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118 if (i == 3) { |
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119 (*size)++; |
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120 } else if (i == 4) { |
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121 (*size) += 2; |
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122 } |
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123 } else { |
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124 *size += 3; |
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125 } |
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126 } |
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127 } |
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128 return out; |
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129 } |