X-Git-Url: https://git.distorted.org.uk/~mdw/fwd/blobdiff_plain/270b8403580b7fd0feae995b9e8bad4a2ff660ff..68263f4f5ac7eba4b364b4756c0b316831fda4e3:/chan.c

diff --git a/chan.c b/chan.c
index e5b6d06..9aa42a5 100644
--- a/chan.c
+++ b/chan.c
@@ -80,9 +80,9 @@ static void writechan(int fd, unsigned mode, void *vp)
     if (w < 0) {
       if (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK)
 	return;
+      c->err = errno;
       goto close;
-    }
-    else if (w == 0)
+    } else if (w == 0)
       goto close;
     else if (c->len == CHAN_BUFSZ && !(c->f & CHANF_CLOSE))
       sel_addfile(&c->r);
@@ -153,9 +153,9 @@ static void readchan(int fd, unsigned mode, void *vp)
   if (r < 0) {
     if (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK)
       return;
+    c->err = errno;
     goto close;
-  }
-  else if (r == 0)
+  } else if (r == 0)
     goto close;
   else if (c->len == 0 && (c->f & CHANF_READY)) {
     sel_addfile(&c->w);
@@ -240,6 +240,7 @@ void chan_open(chan *c, int from, int to,
   c->base = 0;
   c->len = 0;
   c->f = 0;
+  c->err = 0;
 
   sel_initfile(sel, &c->r, from, SEL_READ, readchan, c);
   sel_addfile(&c->r);