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The major part of this change has been contributed by

Browse Source 
<andyw@pobox.com>.

Implements patch #4635: Add support for terminal/console servers for
serial programmers

* ser_posix.c: Add net_open(), and divert to it for net:host:port.
* ser_win32.c: Recognize net:host:port, and bail out.
* avrdude.1: Document the net:host:port connection option.
* doc/avrdude.texi: (Ditto.)


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@635 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
joerg_wunsch
2006-08-31 20:52:47 +00:00
parent d2d9651dcd
commit 07735be08b
5 changed files with 154 additions and 5 deletions
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84
ser_posix.c
View File

@@ -1,6 +1,7 @@
/*
* avrdude - A Downloader/Uploader for AVR device programmers
* Copyright (C) 2003-2004, 2006 Theodore A. Roth <troth@openavr.org>
* Copyright (C) 2003-2004 Theodore A. Roth <troth@openavr.org>
* Copyright (C) 2006 Joerg Wunsch <j@uriah.heep.sax.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -33,6 +34,9 @@
#include <errno.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netdb.h>
#include <netinet/in.h>
#include <fcntl.h>
#include <termios.h>
@@ -137,12 +141,90 @@ static int ser_setspeed(int fd, long baud)
return 0;
}
/*
* Given a port description of the form <host>:<port>, open a TCP
* connection to the specified destination, which is assumed to be a
* terminal/console server with serial parameters configured
* appropriately (e. g. 115200-8-N-1 for a STK500.)
*/
static int
net_open(const char *port)
{
char *hstr, *pstr, *end;
unsigned int pnum;
int fd;
struct sockaddr_in sockaddr;
struct hostent *hp;
if ((hstr = strdup(port)) == NULL) {
fprintf(stderr, "%s: net_open(): Out of memory!\n",
progname);
exit(1);
}
if (((pstr = strchr(hstr, ':')) == NULL) || (pstr == hstr)) {
fprintf(stderr, "%s: net_open(): Mangled host:port string \"%s\"\n",
progname, hstr);
free(hstr);
exit(1);
}
/*
* Terminate the host section of the description.
*/
*pstr++ = '\0';
pnum = strtoul(pstr, &end, 10);
if ((*pstr == '\0') || (*end != '\0') || (pnum == 0) || (pnum > 65535)) {
fprintf(stderr, "%s: net_open(): Bad port number \"%s\"\n",
progname, pstr);
free(hstr);
exit(1);
}
if ((hp = gethostbyname(hstr)) == NULL) {
fprintf(stderr, "%s: net_open(): unknown host \"%s\"\n",
progname, hstr);
free(hstr);
exit(1);
}
free(hstr);
if ((fd = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
fprintf(stderr, "%s: net_open(): Cannot open socket: %s\n",
progname, strerror(errno));
exit(1);
}
memset(&sockaddr, 0, sizeof(struct sockaddr_in));
sockaddr.sin_family = AF_INET;
sockaddr.sin_port = htons(pnum);
memcpy(&(sockaddr.sin_addr.s_addr), hp->h_addr, sizeof(struct in_addr));
if (connect(fd, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
fprintf(stderr, "%s: net_open(): Connect failed: %s\n",
progname, strerror(errno));
exit(1);
}
return fd;
}
static int ser_open(char * port, long baud)
{
int rc;
int fd;
/*
* If the port is of the form "net:<host>:<port>", then
* handle it as a TCP connection to a terminal server.
*/
if (strncmp(port, "net:", strlen("net:")) == 0) {
return net_open(port + strlen("net:"));
}
/*
* open the serial port
*/