Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/lib-mail/quoted-printable.c @ 956:26cafa3dc09c HEAD

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minor optimization
author Timo Sirainen <tss@iki.fi>
date Sun, 12 Jan 2003 01:49:45 +0200
parents fd8888f6f037
children cad379bd76d6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* Copyright (C) 2002 Timo Sirainen */
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2
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3 #include "lib.h"
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4 #include "buffer.h"
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5 #include "hex-binary.h"
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6 #include "quoted-printable.h"
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7
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8 void quoted_printable_decode(const unsigned char *src, size_t src_size,
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9 size_t *src_pos_r, buffer_t *dest)
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10 {
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11 char hexbuf[3];
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12 size_t src_pos, next;
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13
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14 hexbuf[2] = '\0';
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16 next = 0;
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17 for (src_pos = 0; src_pos < src_size; src_pos++) {
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18 if (src[src_pos] != '_' && src[src_pos] != '=')
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19 continue;
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20
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21 buffer_append(dest, src + next, src_pos - next);
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22
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23 if (src[src_pos] == '_') {
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24 buffer_append_c(dest, ' ');
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25 next = src_pos+1;
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26 } else {
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27 /* =<hex> */
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28 if (src_pos+2 >= src_size)
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29 break;
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30
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31 hexbuf[0] = src[src_pos+1];
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32 hexbuf[1] = src[src_pos+2];
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33
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34 if (hex_to_binary(hexbuf, dest) == 1) {
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35 src_pos += 2;
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36 next = src_pos+1;
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37 } else {
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38 /* non-hex data */
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39 next = src_pos;
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40 }
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41 }
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42 }
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43
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44 buffer_append(dest, src + next, src_size - next);
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45
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46 if (src_pos_r != NULL)
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47 *src_pos_r = src_pos;
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48 }