Mercurial > hg > nginx-vendor-1-0
view src/core/ngx_parse.c @ 99:942ae8bb3ece
Added tag NGINX_0_2_3 for changeset 8bf57caa374a
author | Igor Sysoev <http://sysoev.ru> |
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date | Fri, 30 Sep 2005 00:00:00 +0400 |
parents | f0b350454894 |
children | 408f195b3482 |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> ngx_int_t ngx_parse_size(ngx_str_t *line) { u_char last; size_t len; ngx_int_t scale, size; len = line->len; last = line->data[len - 1]; switch (last) { case 'K': case 'k': len--; scale = 1024; break; case 'M': case 'm': len--; scale = 1024 * 1024; break; default: scale = 1; } size = ngx_atoi(line->data, len); if (size == NGX_ERROR) { return NGX_ERROR; } size *= scale; return size; } ngx_int_t ngx_parse_time(ngx_str_t *line, ngx_int_t sec) { size_t len; u_char *start, last; ngx_int_t value, total, scale; ngx_uint_t max, i; enum { st_start = 0, st_year, st_month, st_week, st_day, st_hour, st_min, st_sec, st_msec, st_last } step; start = line->data; len = 0; total = 0; step = sec ? st_start : st_month; for (i = 0; /* void */ ; i++) { if (i < line->len) { if (line->data[i] != ' ') { len++; continue; } if (line->data[i] == ' ' && len == 0) { start = &line->data[i + 1]; continue; } } if (len == 0) { break; } last = line->data[i - 1]; switch (last) { case 'y': if (step > st_start) { return NGX_ERROR; } step = st_year; len--; max = 68; scale = 60 * 60 * 24 * 365; break; case 'M': if (step > st_year) { return NGX_ERROR; } step = st_month; len--; max = 828; scale = 60 * 60 * 24 * 30; break; case 'w': if (step > st_month) { return NGX_ERROR; } step = st_week; len--; max = 3550; scale = 60 * 60 * 24 * 7; break; case 'd': if (step > st_week) { return NGX_ERROR; } step = st_day; len--; max = 24855; scale = 60 * 60 * 24; break; case 'h': if (step > st_day) { return NGX_ERROR; } step = st_hour; len--; max = 596523; scale = 60 * 60; break; case 'm': if (step > st_hour) { return NGX_ERROR; } step = st_min; len--; max = 35791394; scale = 60; break; case 's': len--; if (line->data[i - 2] == 'm') { if (sec || step > st_sec) { return NGX_ERROR; } step = st_msec; len--; max = 2147483647; scale = 1; break; } if (step > st_min) { return NGX_ERROR; } step = st_sec; max = 2147483647; scale = 1; break; default: step = st_last; max = 2147483647; scale = 1; } value = ngx_atoi(start, len); if (value == NGX_ERROR) { return NGX_ERROR; } if (step != st_msec && !sec) { scale *= 1000; max /= 1000; } if ((u_int) value > max) { return NGX_PARSE_LARGE_TIME; } total += value * scale; if ((u_int) total > 2147483647) { return NGX_PARSE_LARGE_TIME; } if (i >= line->len) { break; } len = 0; start = &line->data[i + 1]; } return total; }