Use the sreadfrom() wrapper to replace recvfrom() in our code.

CHANGES

@@ -6,6 +6,9 @@
 
                                   Changelog
 
+Yang Tse (21 Jul 2008)
+- Use the sreadfrom() wrapper to replace recvfrom() in our code.
+
 Yang Tse (20 Jul 2008)
 - when recvfrom prototype uses a void pointer for arguments 2, 5 or 6 this will
   now cause the definition, as appropriate, of RECVFROM_TYPE_ARG2_IS_VOID,

ares/setup_once.h

@@ -222,6 +222,13 @@ struct timeval {
 #endif /* HAVE_RECVFROM */
 
 
+#ifdef RECVFROM_TYPE_ARG6_IS_VOID
+#  define RECVFROM_ARG6_T unsigned int
+#else
+#  define RECVFROM_ARG6_T RECVFROM_TYPE_ARG6
+#endif
+
+
 /*
  * Uppercase macro versions of ANSI/ISO is*() functions/macros which
  * avoid negative number inputs with argument byte codes > 127.

lib/setup_once.h

@@ -229,6 +229,13 @@ struct timeval {
 #endif /* HAVE_RECVFROM */
 
 
+#ifdef RECVFROM_TYPE_ARG6_IS_VOID
+#  define RECVFROM_ARG6_T unsigned int
+#else
+#  define RECVFROM_ARG6_T RECVFROM_TYPE_ARG6
+#endif
+
+
 /*
  * Uppercase macro versions of ANSI/ISO is*() functions/macros which
  * avoid negative number inputs with argument byte codes > 127.

lib/tftp.c

@@ -141,7 +141,7 @@ typedef struct tftp_state_data {
   struct Curl_sockaddr_storage   local_addr;
   struct Curl_sockaddr_storage   remote_addr;
   socklen_t       remote_addrlen;
-  int             rbytes;
+  ssize_t         rbytes;
   int             sbytes;
   tftp_packet_t   rpacket;
   tftp_packet_t   spacket;
@@ -420,7 +420,7 @@ static CURLcode tftp_rx(tftp_state_data_t *state, tftp_event_t event)
     }
 
     /* Check if completed (That is, a less than full packet is received) */
-    if(state->rbytes < (int)sizeof(state->spacket)){
+    if(state->rbytes < sizeof(state->spacket)){
       state->state = TFTP_STATE_FIN;
     }
     else {
@@ -717,7 +717,7 @@ static CURLcode tftp_do(struct connectdata *conn, bool *done)
   CURLcode              code;
   int                   rc;
   struct Curl_sockaddr_storage fromaddr;
-  socklen_t             fromlen;
+  RECVFROM_ARG6_T       fromlen;
   int                   check_time = 0;
   struct SingleRequest *k = &data->req;
 
@@ -764,10 +764,10 @@ static CURLcode tftp_do(struct connectdata *conn, bool *done)
     else {
 
       /* Receive the packet */
-      fromlen=sizeof(fromaddr);
+      fromlen = (RECVFROM_ARG6_T)sizeof(fromaddr);
-      state->rbytes = recvfrom(state->sockfd,
+      state->rbytes = sreadfrom(state->sockfd,
-                               (void *)&state->rpacket, sizeof(state->rpacket),
+                                &state->rpacket, sizeof(state->rpacket),
-                               0, (struct sockaddr *)&fromaddr, &fromlen);
+                                &fromaddr, &fromlen);
       if(state->remote_addrlen==0) {
         memcpy(&state->remote_addr, &fromaddr, fromlen);
         state->remote_addrlen = fromlen;

tests/server/tftpd.c

@@ -132,7 +132,7 @@ static int maxtimeout = 5*TIMEOUT;
 static char buf[PKTSIZE];
 static char ackbuf[PKTSIZE];
 static struct sockaddr_in from;
-static socklen_t fromlen;
+static RECVFROM_ARG6_T fromlen;
 
 struct bf {
   int counter;            /* size of data in buffer, or flag */
@@ -355,7 +355,7 @@ static int synchnet(curl_socket_t f /* socket to flush */)
   int j = 0;
   char rbuf[PKTSIZE];
   struct sockaddr_in fromaddr;
-  socklen_t fromaddrlen;
+  RECVFROM_ARG6_T fromaddrlen;
 
   while (1) {
 #if defined(HAVE_IOCTLSOCKET)
@@ -365,9 +365,8 @@ static int synchnet(curl_socket_t f /* socket to flush */)
 #endif
     if (i) {
       j++;
-      fromaddrlen = sizeof fromaddr;
+      fromaddrlen = (RECVFROM_ARG6_T)sizeof(fromaddr);
-      (void) recvfrom(f, rbuf, sizeof (rbuf), 0,
+      (void)sreadfrom(f, rbuf, sizeof(rbuf), &fromaddr, &fromaddrlen);
-                      (struct sockaddr *)&fromaddr, &fromaddrlen);
     }
     else
       break;
@@ -407,7 +406,7 @@ int main(int argc, char **argv)
 #endif /* ENABLE_IPV6 */
 
   struct tftphdr *tp;
-  int n = 0;
+  ssize_t n = 0;
   int arg = 1;
   char *pidname= (char *)".tftpd.pid";
   unsigned short port = DEFAULT_PORT;
@@ -514,9 +513,8 @@ int main(int argc, char **argv)
          , port );
 
   do {
-    fromlen = sizeof(from);
+    fromlen = (RECVFROM_ARG6_T)sizeof(from);
-    n = recvfrom(sock, buf, sizeof (buf), 0,
+    n = sreadfrom(sock, buf, sizeof(buf), &from, &fromlen);
-                 (struct sockaddr *)&from, &fromlen);
     if (n < 0) {
       logmsg("recvfrom:\n");
       result = 3;