Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / tools / ncb.c

diff --git a/qemu/roms/u-boot/tools/ncb.c b/qemu/roms/u-boot/tools/ncb.c
new file mode 100644 (file)
index 0000000..ec8d8a7
--- /dev/null
+++ b/qemu/roms/u-boot/tools/ncb.c
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+int main (int argc, char *argv[])
+{
+       int s, len, o, port = 6666;
+       char buf[512];
+       struct sockaddr_in addr;
+       socklen_t addr_len = sizeof addr;
+
+       if (argc > 1)
+               port = atoi (argv[1]);
+
+       s = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP);
+
+       o = 1;
+       len = 4;
+       setsockopt (3, SOL_SOCKET, SO_REUSEADDR, &o, len);
+
+       addr.sin_family = AF_INET;
+       addr.sin_port = htons (port);
+       addr.sin_addr.s_addr = INADDR_ANY;      /* receive broadcasts */
+
+       bind (s, (struct sockaddr *) &addr, sizeof addr);
+
+       for (;;) {
+               len = recvfrom (s, buf, sizeof buf, 0, (struct sockaddr *) &addr, &addr_len);
+               if (len < 0)
+                       break;
+               if (write (1, buf, len) != len)
+                       fprintf(stderr, "WARNING: serial characters dropped\n");
+       }
+
+       return 0;
+}