Mercurial > dovecot > core-2.2
annotate src/lib/strescape.c @ 1651:43fdcf8d9a0d HEAD
unescaping was broken
author | Timo Sirainen <tss@iki.fi> |
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date | Sun, 27 Jul 2003 04:50:32 +0300 |
parents | ae229b7acb4c |
children | 9df02b1533b3 |
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1 /* |
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2 Copyright (c) 2003 Timo Sirainen |
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3 |
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4 Permission is hereby granted, free of charge, to any person obtaining |
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5 a copy of this software and associated documentation files (the |
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6 "Software"), to deal in the Software without restriction, including |
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7 without limitation the rights to use, copy, modify, merge, publish, |
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8 distribute, sublicense, and/or sell copies of the Software, and to |
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9 permit persons to whom the Software is furnished to do so, subject to |
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10 the following conditions: |
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11 |
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12 The above copyright notice and this permission notice shall be |
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13 included in all copies or substantial portions of the Software. |
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14 |
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15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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16 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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17 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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18 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
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19 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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20 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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21 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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22 */ |
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23 |
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24 #include "lib.h" |
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25 #include "str.h" |
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26 #include "strescape.h" |
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27 |
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28 const char *str_escape(const char *str) |
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29 { |
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30 const char *p; |
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31 string_t *ret; |
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32 |
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33 /* see if we need to quote it */ |
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34 for (p = str; *p != '\0'; p++) { |
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35 if (IS_ESCAPED_CHAR(*p)) |
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36 break; |
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37 } |
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38 |
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39 if (*p == '\0') |
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40 return str; |
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41 |
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42 /* quote */ |
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43 ret = t_str_new((size_t) (p - str) + 128); |
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44 str_append_n(ret, str, (size_t) (p - str)); |
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45 |
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46 for (; *p != '\0'; p++) { |
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47 if (IS_ESCAPED_CHAR(*p)) |
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48 str_append_c(ret, '\\'); |
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49 str_append_c(ret, *p); |
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50 } |
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51 return str_c(ret); |
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52 } |
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53 |
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54 void str_append_unescaped(string_t *dest, const void *src, size_t src_size) |
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55 { |
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56 const unsigned char *src_c = src; |
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57 size_t start = 0, i = 0; |
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58 |
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59 while (i < src_size) { |
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60 start = i; |
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61 for (; i < src_size; i++) { |
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62 if (src_c[i] == '\\') |
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63 break; |
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64 } |
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65 |
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66 str_append_n(dest, src_c + start, i-start); |
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67 |
1651 | 68 if (i < src_size) |
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69 i++; |
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70 start = i; |
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71 } |
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72 } |
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73 |
1216 | 74 char *str_unescape(char *str) |
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75 { |
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76 /* @UNSAFE */ |
1216 | 77 char *dest, *start = str; |
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78 |
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79 while (*str != '\\') { |
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80 if (*str == '\0') |
1216 | 81 return start; |
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82 str++; |
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83 } |
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84 |
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85 for (dest = str; *str != '\0'; str++) { |
1651 | 86 if (*str == '\\' && str[1] != '\0') |
87 str++; | |
88 | |
89 *dest++ = *str; | |
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90 } |
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91 |
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92 *dest = '\0'; |
1216 | 93 return start; |
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94 } |