Mercurial > hg > nginx
annotate src/imap/ngx_imap_parse.c @ 422:edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Sat, 11 Sep 2004 20:22:11 +0000 |
parents | 01456a419cf9 |
children | da8c5707af39 |
rev | line source |
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417
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nginx-0.0.10-2004-09-07-19:29:22 import
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1 |
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nginx-0.0.10-2004-09-07-19:29:22 import
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2 #include <ngx_config.h> |
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nginx-0.0.10-2004-09-07-19:29:22 import
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3 #include <ngx_core.h> |
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nginx-0.0.10-2004-09-07-19:29:22 import
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4 #include <ngx_event.h> |
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nginx-0.0.10-2004-09-07-19:29:22 import
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5 #include <ngx_imap.h> |
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nginx-0.0.10-2004-09-07-19:29:22 import
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6 |
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7 |
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nginx-0.0.10-2004-09-09-19:40:48 import
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8 ngx_int_t ngx_pop3_parse_command(ngx_imap_session_t *s) |
417
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9 { |
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10 u_char ch, *p, *c; |
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11 ngx_str_t *arg; |
417
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12 enum { |
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nginx-0.0.10-2004-09-07-19:29:22 import
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13 sw_start = 0, |
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nginx-0.0.10-2004-09-09-19:40:48 import
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14 sw_spaces_before_argument, |
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nginx-0.0.10-2004-09-09-19:40:48 import
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15 sw_argument, |
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16 sw_almost_done, |
417
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17 sw_done |
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18 } state; |
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19 |
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20 state = s->state; |
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nginx-0.0.10-2004-09-09-19:40:48 import
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21 p = s->buffer->pos; |
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22 |
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23 while (p < s->buffer->last && state < sw_done) { |
417
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nginx-0.0.10-2004-09-07-19:29:22 import
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24 ch = *p++; |
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25 |
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26 switch (state) { |
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27 |
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28 /* POP3 command */ |
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29 |
417
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30 case sw_start: |
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31 if (ch == ' ' || ch == CR || ch == LF) { |
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nginx-0.0.10-2004-09-09-19:40:48 import
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32 c = s->buffer->start; |
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33 |
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34 if (p - 1 - c == 4) { |
417
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35 |
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36 if (c[0] == 'U' && c[1] == 'S' |
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nginx-0.0.10-2004-09-09-19:40:48 import
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37 && c[2] == 'E' && c[3] == 'R') |
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nginx-0.0.10-2004-09-09-19:40:48 import
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38 { |
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nginx-0.0.10-2004-09-09-19:40:48 import
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39 s->command = NGX_POP3_USER; |
417
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nginx-0.0.10-2004-09-07-19:29:22 import
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40 |
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41 } else if (c[0] == 'P' && c[1] == 'A' |
421
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nginx-0.0.10-2004-09-10-18:32:02 import
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42 && c[2] == 'S' && c[3] == 'S') |
417
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43 { |
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44 s->command = NGX_POP3_PASS; |
417
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45 |
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nginx-0.0.10-2004-09-09-19:40:48 import
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46 } else if (c[0] == 'Q' && c[1] == 'U' |
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nginx-0.0.10-2004-09-09-19:40:48 import
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47 && c[2] == 'I' && c[3] == 'T') |
417
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nginx-0.0.10-2004-09-07-19:29:22 import
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48 { |
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nginx-0.0.10-2004-09-09-19:40:48 import
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49 s->command = NGX_POP3_QUIT; |
417
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nginx-0.0.10-2004-09-07-19:29:22 import
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50 |
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51 #if 0 |
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nginx-0.0.10-2004-09-09-19:40:48 import
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52 } else if (c[0] == 'N' && c[1] == 'O' |
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nginx-0.0.10-2004-09-09-19:40:48 import
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53 && c[2] == 'O' && c[3] == 'P') |
417
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54 { |
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55 s->command = NGX_POP3_NOOP; |
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nginx-0.0.10-2004-09-09-19:40:48 import
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56 #endif |
417
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57 |
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58 } else { |
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nginx-0.0.10-2004-09-10-18:32:02 import
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59 s->state = sw_start; |
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60 return NGX_IMAP_PARSE_INVALID_COMMAND; |
417
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61 } |
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62 |
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63 } else { |
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64 s->state = sw_start; |
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65 return NGX_IMAP_PARSE_INVALID_COMMAND; |
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66 } |
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67 |
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68 switch (ch) { |
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69 case ' ': |
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70 state = sw_spaces_before_argument; |
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71 break; |
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72 case CR: |
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73 state = sw_almost_done; |
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74 break; |
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75 case LF: |
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76 state = sw_done; |
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77 break; |
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78 } |
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79 break; |
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80 } |
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81 |
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82 if (ch < 'A' || ch > 'Z') { |
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83 s->state = sw_start; |
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84 return NGX_IMAP_PARSE_INVALID_COMMAND; |
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85 } |
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86 |
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87 break; |
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88 |
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89 /* the spaces before the argument */ |
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90 case sw_spaces_before_argument: |
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91 switch (ch) { |
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92 case ' ': |
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93 break; |
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94 case CR: |
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95 state = sw_almost_done; |
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96 s->arg_end = p - 1; |
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97 break; |
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98 case LF: |
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99 state = sw_done; |
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100 s->arg_end = p - 1; |
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101 break; |
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102 default: |
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103 if (s->args.nelts > 2) { |
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104 s->state = sw_start; |
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105 return NGX_IMAP_PARSE_INVALID_COMMAND; |
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106 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
107 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
108 state = sw_argument; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
109 s->arg_start = p - 1; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
110 break; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
111 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
112 break; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
113 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
114 /* the argument */ |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
115 case sw_argument: |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
116 switch (ch) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
117 case ' ': |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
118 case CR: |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
119 case LF: |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
120 if (!(arg = ngx_array_push(&s->args))) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
121 return NGX_ERROR; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
122 } |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
421
diff
changeset
|
123 arg->len = p - 1 - s->arg_start; |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
124 arg->data = s->arg_start; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
125 s->arg_start = NULL; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
126 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
127 switch (ch) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
128 case ' ': |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
129 state = sw_spaces_before_argument; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
130 break; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
131 case CR: |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
132 state = sw_almost_done; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
133 break; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
134 case LF: |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
135 state = sw_done; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
136 break; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
137 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
138 break; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
139 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
140 default: |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
141 break; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
142 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
143 break; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
144 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
145 /* end of request line */ |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
146 case sw_almost_done: |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
147 switch (ch) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
148 case LF: |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
149 state = sw_done; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
150 break; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
151 default: |
421
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
152 s->state = sw_start; |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
153 return NGX_IMAP_PARSE_INVALID_COMMAND; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
154 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
155 break; |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
156 |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
157 /* suppress warning */ |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
158 case sw_done: |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
159 break; |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
160 } |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
161 } |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
162 |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
163 s->buffer->pos = p; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
164 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
165 if (state == sw_done) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
166 if (s->arg_start) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
167 if (!(arg = ngx_array_push(&s->args))) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
168 return NGX_ERROR; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
169 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
170 arg->len = s->arg_end - s->arg_start; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
171 arg->data = s->arg_start; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
172 s->arg_start = NULL; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
173 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
174 |
421
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
175 s->state = sw_start; |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
176 return NGX_OK; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
177 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
178 } else { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
179 s->state = state; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
180 return NGX_AGAIN; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
181 } |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
182 } |