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allow time without spaces in ngx_parse_time()

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This commit is contained in:
Igor Sysoev 2008-04-17 14:23:20 +00:00
parent 2e39e289e1
commit f57b24e70f
2 changed files with 46 additions and 58 deletions
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102
src/core/ngx_parse.c
View File

@ -93,12 +93,11 @@ ngx_parse_offset(ngx_str_t *line)
ngx_int_t
ngx_parse_time(ngx_str_t *line, ngx_int_t sec)
ngx_parse_time(ngx_str_t *line, ngx_uint_t sec)
{
size_t len;
u_char *start, last;
u_char *p, *last;
ngx_int_t value, total, scale;
ngx_uint_t max, i;
ngx_uint_t max, valid;
enum {
st_start = 0,
st_year,
@ -112,39 +111,30 @@ ngx_parse_time(ngx_str_t *line, ngx_int_t sec)
st_last
} step;
start = line->data;
len = 0;
valid = 0;
value = 0;
total = 0;
step = sec ? st_start : st_month;
scale = sec ? 1 : 1000;
for (i = 0; /* void */ ; i++) {
p = line->data;
last = p + line->len;
if (i < line->len) {
if (line->data[i] != ' ') {
len++;
continue;
}
while (p < last) {
if (line->data[i] == ' ' && len == 0) {
start = &line->data[i + 1];
continue;
}
if (*p >= '0' && *p <= '9') {
value = value * 10 + (*p++ - '0');
valid = 1;
continue;
}
if (len == 0) {
break;
}
switch (*p++) {
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;
@ -154,7 +144,6 @@ ngx_parse_time(ngx_str_t *line, ngx_int_t sec)
return NGX_ERROR;
}
step = st_month;
len--;
max = 828;
scale = 60 * 60 * 24 * 30;
break;
@ -164,7 +153,6 @@ ngx_parse_time(ngx_str_t *line, ngx_int_t sec)
return NGX_ERROR;
}
step = st_week;
len--;
max = 3550;
scale = 60 * 60 * 24 * 7;
break;
@ -174,7 +162,6 @@ ngx_parse_time(ngx_str_t *line, ngx_int_t sec)
return NGX_ERROR;
}
step = st_day;
len--;
max = 24855;
scale = 60 * 60 * 24;
break;
@ -184,52 +171,49 @@ ngx_parse_time(ngx_str_t *line, ngx_int_t sec)
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 (*p == 's') {
if (sec || step > st_sec) {
return NGX_ERROR;
}
p++;
step = st_msec;
len--;
max = 2147483647;
scale = 1;
break;
}
if (step > st_hour) {
return NGX_ERROR;
}
step = st_min;
max = 35791394;
scale = 60;
break;
case 's':
if (step > st_min) {
return NGX_ERROR;
}
step = st_sec;
max = 2147483647;
scale = 1;
break;
default:
case ' ':
if (step > st_min) {
return NGX_ERROR;
}
step = st_last;
max = 2147483647;
scale = 1;
}
break;
value = ngx_atoi(start, len);
if (value == NGX_ERROR) {
default:
return NGX_ERROR;
}
@ -238,23 +222,27 @@ ngx_parse_time(ngx_str_t *line, ngx_int_t sec)
max /= 1000;
}
if ((u_int) value > max) {
return NGX_PARSE_LARGE_TIME;
if ((ngx_uint_t) value > max) {
return NGX_ERROR;
}
total += value * scale;
if ((u_int) total > 2147483647) {
return NGX_PARSE_LARGE_TIME;
if ((ngx_uint_t) total > 2147483647) {
return NGX_ERROR;
}
if (i >= line->len) {
break;
}
value = 0;
scale = sec ? 1 : 1000;
len = 0;
start = &line->data[i + 1];
while (p < last && *p == ' ') {
p++;
}
}
return total;
if (valid) {
return total + value * scale;
}
return NGX_ERROR;
}

2
src/core/ngx_parse.h
View File

@ -17,7 +17,7 @@
ssize_t ngx_parse_size(ngx_str_t *line);
off_t ngx_parse_offset(ngx_str_t *line);
ngx_int_t ngx_parse_time(ngx_str_t *line, ngx_int_t sec);
ngx_int_t ngx_parse_time(ngx_str_t *line, ngx_uint_t sec);
#endif /* _NGX_PARSE_H_INCLUDED_ */