Re-impose some of Winsock's limitations on sock_recv().

In Winsock, recv() takes an int as the size argument and returns an int
as a return value, so it can't read more than INT_MAX bytes.  Have it
take a size_t as an argument (so you don't have to cast away warnings
about narrowing sizeof values), return an error if it's bigger than
INT_MAX (which it can be even on ILP32 platforms, as size_t is
unsigned), and have the count of remaining bytes be an int.

1 files changed, 1 insertions, 1 deletions

diff --git a/sockutils.h b/sockutils.h
index cb41b96b..c3c2a619 100644
--- a/sockutils.h
+++ b/sockutils.h
@@ -211,7 +211,7 @@ void sock_geterror(const char *caller, char *errbuf, int errbufsize);
 int sock_initaddress(const char *address, const char *port,
     struct addrinfo *hints, struct addrinfo **addrinfo,
     char *errbuf, int errbuflen);
-ssize_t sock_recv(SOCKET socket, void *buffer, size_t size, int receiveall,
+int sock_recv(SOCKET socket, void *buffer, size_t size, int receiveall,
     char *errbuf, int errbuflen);
 SOCKET sock_open(struct addrinfo *addrinfo, int server, int nconn, char *errbuf, int errbuflen);
 int sock_close(SOCKET sock, char *errbuf, int errbuflen);