commit adcfc21

Check some fwrite() return values in xs_fcgi_response().

 1@@ -336,21 +336,23 @@ void xs_fcgi_response(FILE *f, int status, xs_dict *headers, xs_str *body, int b
 2     int offset = 0;
 3 
 4     while (offset < size) {
 5-        int sz = size - offset;
 6+        size_t sz = size - offset;
 7         if (sz > 0xffff)
 8             sz = 0xffff;
 9 
10         hdr.content_len = htons(sz);
11 
12-        fwrite(&hdr, sizeof(hdr), 1, f);
13-        fwrite(out + offset, 1, sz, f);
14+        /* write or fail */
15+        if (!fwrite(&hdr, sizeof(hdr), 1, f) || fwrite(out + offset, 1, sz, f) != sz)
16+            return;
17 
18         offset += sz;
19     }
20 
21     /* final STDOUT packet with 0 size */
22     hdr.content_len = 0;
23-    fwrite(&hdr, sizeof(hdr), 1, f);
24+    if (!fwrite(&hdr, sizeof(hdr), 1, f))
25+        return;
26 
27     /* complete the connection */
28     ereq.app_status      = 0;
29@@ -359,8 +361,8 @@ void xs_fcgi_response(FILE *f, int status, xs_dict *headers, xs_str *body, int b
30     hdr.type        = FCGI_END_REQUEST;
31     hdr.content_len = htons(sizeof(ereq));
32 
33-    fwrite(&hdr, sizeof(hdr), 1, f);
34-    fwrite(&ereq, sizeof(ereq), 1, f);
35+    if (fwrite(&hdr, sizeof(hdr), 1, f))
36+        fwrite(&ereq, sizeof(ereq), 1, f);
37 }
38 
39