libc: better curl compat

I can now actually curl an entire page :^)

1 files changed, 6 insertions, 0 deletions

diff --git a/src/libc/select.c b/src/libc/select.c
index e3e95e4..20f7b71 100644
--- a/src/libc/select.c
+++ b/src/libc/select.c
@@ -21,6 +21,12 @@ select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct ti
 	(void)timeout;
 	FD_ZERO(exceptfds);
 	if (countset(nfds, readfds) != 0) {
+		if (countset(nfds, readfds) == 1 && countset(nfds, writefds) == 0) {
+			/* special case: if you're only waiting for a single fd to become
+			 * readable, just go ahead and read() it.
+			 * curl compat. */
+			return 1;
+		}
 		return errno = ENOSYS, -1;
 	}
 	return countset(nfds, writefds); /* assume everything is ready for writing */