diff options
Diffstat (limited to 'nuttx/examples/udp/udp-server.c')
-rw-r--r-- | nuttx/examples/udp/udp-server.c | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/nuttx/examples/udp/udp-server.c b/nuttx/examples/udp/udp-server.c deleted file mode 100644 index 495a71320..000000000 --- a/nuttx/examples/udp/udp-server.c +++ /dev/null @@ -1,173 +0,0 @@ -/**************************************************************************** - * examples/udp/udp-server.c - * - * Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <spudmonkey@racsa.co.cr> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name Gregory Nutt nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <sys/socket.h> -#include <netinet/in.h> - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <errno.h> - -#include "udp-internal.h" - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -static inline int check_buffer(unsigned char *buf) -{ - int ret = 1; - int offset; - int ch; - int j; - - offset = buf[0]; - for (ch = 0x20, j = offset + 1; ch < 0x7f; ch++, j++) - { - if (j >= SENDSIZE) - { - j = 1; - } - if (buf[j] != ch) - { - message("server: Buffer content error for offset=%d, index=%d\n", offset, j); - ret = 0; - } - } - return ret; -} - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -void recv_server(void) -{ - struct sockaddr_in server; - struct sockaddr_in client; - in_addr_t tmpaddr; - unsigned char inbuf[1024]; - int sockfd; - int nbytes; - int optval; - int offset; - socklen_t addrlen; - - /* Create a new UDP socket */ - - sockfd = socket(PF_INET, SOCK_DGRAM, 0); - if (sockfd < 0) - { - message("server: socket failure: %d\n", errno); - exit(1); - } - - /* Set socket to reuse address */ - - optval = 1; - if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (void*)&optval, sizeof(int)) < 0) - { - message("server: setsockopt SO_REUSEADDR failure: %d\n", errno); - exit(1); - } - - /* Bind the socket to a local address */ - - server.sin_family = AF_INET; - server.sin_port = HTONS(PORTNO); - server.sin_addr.s_addr = HTONL(INADDR_ANY); - - if (bind(sockfd, (struct sockaddr*)&server, sizeof(struct sockaddr_in)) < 0) - { - message("server: bind failure: %d\n", errno); - exit(1); - } - - /* Then receive up to 256 packets of data */ - - for (offset = 0; offset < 256; offset++) - { - message("server: %d. Receiving up 1024 bytes\n", offset); - addrlen = sizeof(struct sockaddr_in); - nbytes = recvfrom(sockfd, inbuf, 1024, 0, - (struct sockaddr*)&client, &addrlen); - - tmpaddr = ntohl(client.sin_addr.s_addr); - message("server: %d. Received %d bytes from %d.%d.%d.%d:%d\n", - offset, nbytes, - tmpaddr >> 24, (tmpaddr >> 16) & 0xff, - (tmpaddr >> 8) & 0xff, tmpaddr & 0xff, - ntohs(client.sin_port)); - - if (nbytes < 0) - { - message("server: %d. recv failed: %d\n", offset, errno); - close(sockfd); - exit(-1); - } - - if (nbytes != SENDSIZE) - { - message("server: %d. recv size incorrect: %d vs %d\n", offset, nbytes, SENDSIZE); - close(sockfd); - exit(-1); - } - - if (offset < inbuf[0]) - { - message("server: %d. %d packets lost, resetting offset\n", offset, inbuf[0] - offset); - offset = inbuf[0]; - } - else if (offset > inbuf[0]) - { - message("server: %d. Bad offset in buffer: %d\n", offset, inbuf[0]); - close(sockfd); - exit(-1); - } - - if (!check_buffer(inbuf)) - { - message("server: %d. Bad buffer contents\n", offset); - close(sockfd); - exit(-1); - } - } - close(sockfd); -} |