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Upstream: r->upstream->length type change to off_t. 

Previous use of size_t may cause wierd effects on 32bit platforms with certain
big responses transferred in unbuffered mode.

Nuke "if (size > u->length)" check as it's not usefull anyway (preread
body data isn't subject to this check) and now requires additional check
for u->length being positive.
This commit is contained in:
Maxim Dounin 2011-09-15 18:43:19 +00:00
parent 80867ca67e
commit e595f17abf
3 changed files with 4 additions and 13 deletions
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2
src/http/modules/ngx_http_memcached_module.c
View File

@ -407,7 +407,7 @@ ngx_http_memcached_filter(void *data, ssize_t bytes)
u = ctx->request->upstream;
b = &u->buffer;
if (u->length == ctx->rest) {
if (u->length == (ssize_t) ctx->rest) {
if (ngx_strncmp(b->last,
ngx_http_memcached_end + NGX_HTTP_MEMCACHED_END - ctx->rest,

13
src/http/ngx_http_upstream.c
View File

@ -1942,12 +1942,7 @@ ngx_http_upstream_process_headers(ngx_http_request_t *r, ngx_http_upstream_t *u)
r->headers_out.content_length_n = u->headers_in.content_length_n;
if (u->headers_in.content_length_n != -1) {
u->length = (size_t) u->headers_in.content_length_n;
} else {
u->length = NGX_MAX_SIZE_T_VALUE;
}
u->length = u->headers_in.content_length_n;
return NGX_OK;
}
@ -2419,10 +2414,6 @@ ngx_http_upstream_process_non_buffered_request(ngx_http_request_t *r,
size = b->end - b->last;
if (size > u->length) {
size = u->length;
}
if (size && upstream->read->ready) {
n = upstream->recv(upstream, b->last, size);
@ -2519,7 +2510,7 @@ ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes)
cl->buf->last = b->last;
cl->buf->tag = u->output.tag;
if (u->length == NGX_MAX_SIZE_T_VALUE) {
if (u->length == -1) {
return NGX_OK;
}

2
src/http/ngx_http_upstream.h
View File

@ -267,7 +267,7 @@ struct ngx_http_upstream_s {
ngx_http_upstream_resolved_t *resolved;
ngx_buf_t buffer;
size_t length;
off_t length;
ngx_chain_t *out_bufs;
ngx_chain_t *busy_bufs;