diff options
Diffstat (limited to 'src/os/win32/ngx_wsasend_chain.c')
| -rw-r--r-- | src/os/win32/ngx_wsasend_chain.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/src/os/win32/ngx_wsasend_chain.c b/src/os/win32/ngx_wsasend_chain.c index 1d75e0969..d5b1334a1 100644 --- a/src/os/win32/ngx_wsasend_chain.c +++ b/src/os/win32/ngx_wsasend_chain.c @@ -17,7 +17,7 @@ ngx_chain_t *ngx_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in, { int rc; u_char *prev; - u_long size, sent, send, sprev; + u_long size, sent, send, prev_send; ngx_uint_t complete; ngx_err_t err; ngx_event_t *wev; @@ -32,6 +32,12 @@ ngx_chain_t *ngx_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in, return in; } + /* the maximum limit size is the maximum u_long value - the page size */ + + if (limit == 0 || limit > NGX_MAX_UINT32_VALUE - ngx_pagesize) { + limit = NGX_MAX_UINT32_VALUE - ngx_pagesize; + } + send = 0; complete = 0; @@ -48,7 +54,7 @@ ngx_chain_t *ngx_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in, for ( ;; ) { prev = NULL; wsabuf = NULL; - sprev = send; + prev_send = send; vec.nelts = 0; @@ -105,7 +111,7 @@ ngx_chain_t *ngx_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in, ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, "WSASend: fd:%d, s:%ul", c->fd, sent); - if (send - sprev == sent) { + if (send - prev_send == sent) { complete = 1; } @@ -153,8 +159,7 @@ ngx_chain_t *ngx_overlapped_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in, { int rc; u_char *prev; - size_t size; - u_long send, sent; + u_long size, send, sent; LPWSABUF wsabuf; ngx_err_t err; ngx_event_t *wev; @@ -175,6 +180,12 @@ ngx_chain_t *ngx_overlapped_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in, if (!wev->complete) { /* post the overlapped WSASend() */ + + /* the maximum limit size is the maximum u_long value - the page size */ + + if (limit == 0 || limit > NGX_MAX_UINT32_VALUE - ngx_pagesize) { + limit = NGX_MAX_UINT32_VALUE - ngx_pagesize; + } /* * WSABUFs must be 4-byte aligned otherwise |