Mercurial > hg > nginx
comparison src/core/ngx_parse.c @ 157:70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 23 Oct 2003 15:54:19 +0000 |
parents | |
children | 2357fa41738a |
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156:afc333135a6b | 157:70b36c805682 |
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1 | |
2 #include <ngx_config.h> | |
3 #include <ngx_core.h> | |
4 | |
5 | |
6 int ngx_parse_size(ngx_str_t *line) | |
7 { | |
8 int len, scale, size; | |
9 char last; | |
10 | |
11 len = line->len; | |
12 last = line->data[len - 1]; | |
13 | |
14 switch (last) { | |
15 case 'K': | |
16 case 'k': | |
17 len--; | |
18 scale = 1024; | |
19 break; | |
20 | |
21 case 'M': | |
22 case 'm': | |
23 len--; | |
24 scale = 1024 * 1024; | |
25 break; | |
26 | |
27 default: | |
28 scale = 1; | |
29 } | |
30 | |
31 size = ngx_atoi(line->data, len); | |
32 if (size == NGX_ERROR) { | |
33 return NGX_ERROR; | |
34 } | |
35 | |
36 size *= scale; | |
37 | |
38 return size; | |
39 } | |
40 | |
41 | |
42 int ngx_parse_time(ngx_str_t *line, int sec) | |
43 { | |
44 int value, total, len, scale; | |
45 u_int max, i; | |
46 char *start, last; | |
47 enum { | |
48 st_start = 0, | |
49 st_year, | |
50 st_month, | |
51 st_week, | |
52 st_day, | |
53 st_hour, | |
54 st_min, | |
55 st_sec, | |
56 st_msec, | |
57 st_last | |
58 } step; | |
59 | |
60 | |
61 start = line->data; | |
62 len = 0; | |
63 total = 0; | |
64 step = sec ? st_start : st_month; | |
65 | |
66 for (i = 0; /* void */ ; i++) { | |
67 | |
68 if (i < line->len) { | |
69 if (line->data[i] != ' ') { | |
70 len++; | |
71 continue; | |
72 } | |
73 | |
74 if (line->data[i] == ' ' && len == 0) { | |
75 start = &line->data[i + 1]; | |
76 continue; | |
77 } | |
78 } | |
79 | |
80 if (len == 0) { | |
81 break; | |
82 } | |
83 | |
84 last = line->data[i - 1]; | |
85 | |
86 switch (last) { | |
87 case 'y': | |
88 if (step > st_start) { | |
89 return NGX_ERROR; | |
90 } | |
91 step = st_year; | |
92 len--; | |
93 max = 68; | |
94 scale = 60 * 60 * 24 * 365; | |
95 break; | |
96 | |
97 case 'M': | |
98 if (step > st_year) { | |
99 return NGX_ERROR; | |
100 } | |
101 step = st_month; | |
102 len--; | |
103 max = 828; | |
104 scale = 60 * 60 * 24 * 30; | |
105 break; | |
106 | |
107 case 'w': | |
108 if (step > st_month) { | |
109 return NGX_ERROR; | |
110 } | |
111 step = st_week; | |
112 len--; | |
113 max = 3550; | |
114 scale = 60 * 60 * 24 * 7; | |
115 break; | |
116 | |
117 case 'd': | |
118 if (step > st_week) { | |
119 return NGX_ERROR; | |
120 } | |
121 step = st_day; | |
122 len--; | |
123 max = 24855; | |
124 scale = 60 * 60 * 24; | |
125 break; | |
126 | |
127 case 'h': | |
128 if (step > st_day) { | |
129 return NGX_ERROR; | |
130 } | |
131 step = st_hour; | |
132 len--; | |
133 max = 596523; | |
134 scale = 60 * 60; | |
135 break; | |
136 | |
137 case 'm': | |
138 if (step > st_hour) { | |
139 return NGX_ERROR; | |
140 } | |
141 step = st_min; | |
142 len--; | |
143 max = 35791394; | |
144 scale = 60; | |
145 break; | |
146 | |
147 case 's': | |
148 len--; | |
149 | |
150 if (line->data[i - 2] == 'm') { | |
151 if (sec || step > st_sec) { | |
152 return NGX_ERROR; | |
153 } | |
154 step = st_msec; | |
155 len--; | |
156 max = 2147483647; | |
157 scale = 1; | |
158 break; | |
159 } | |
160 | |
161 if (step > st_min) { | |
162 return NGX_ERROR; | |
163 } | |
164 | |
165 step = st_sec; | |
166 max = 2147483647; | |
167 scale = 1; | |
168 break; | |
169 | |
170 default: | |
171 step = st_last; | |
172 max = 2147483647; | |
173 scale = 1; | |
174 } | |
175 | |
176 value = ngx_atoi(start, len); | |
177 if (value == NGX_ERROR) { | |
178 return NGX_ERROR; | |
179 } | |
180 | |
181 if (step != st_msec && !sec) { | |
182 scale *= 1000; | |
183 max /= 1000; | |
184 } | |
185 | |
186 if ((u_int) value > max) { | |
187 return NGX_PARSE_LARGE_TIME; | |
188 } | |
189 | |
190 total += value * scale; | |
191 | |
192 if ((u_int) total > 2147483647) { | |
193 return NGX_PARSE_LARGE_TIME; | |
194 } | |
195 | |
196 if (i >= line->len) { | |
197 break; | |
198 } | |
199 | |
200 len = 0; | |
201 start = &line->data[i + 1]; | |
202 } | |
203 | |
204 return total; | |
205 } |