132 lines
2.9 KiB
C
132 lines
2.9 KiB
C
/*
|
|
* Empire - A multi-player, client/server Internet based war game.
|
|
* Copyright (C) 1986-2007, Dave Pare, Jeff Bailey, Thomas Ruschak,
|
|
* Ken Stevens, Steve McClure
|
|
*
|
|
* 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
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* ---
|
|
*
|
|
* See files README, COPYING and CREDITS in the root of the source
|
|
* tree for related information and legal notices. It is expected
|
|
* that future projects/authors will amend these files as needed.
|
|
*
|
|
* ---
|
|
*
|
|
* expect.c: Read from the socket, expecting to see a particular code.
|
|
*
|
|
* Known contributors to this file:
|
|
* Steve McClure, 1998
|
|
* Markus Armbruster, 2007
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include <ctype.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#ifndef _WIN32
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <unistd.h>
|
|
#endif
|
|
#include "misc.h"
|
|
#include "proto.h"
|
|
|
|
#ifdef _WIN32
|
|
#define read(sock, buffer, buf_size) \
|
|
w32_recv((sock), (buffer), (buf_size), 0)
|
|
#define write(sock, buffer, buf_size) \
|
|
w32_send((sock), (buffer), (buf_size), 0)
|
|
#endif
|
|
|
|
int
|
|
recvline(int s, char *buf)
|
|
{
|
|
int sz = 1024;
|
|
char *bp, *end;
|
|
char ch;
|
|
ssize_t n;
|
|
long id;
|
|
|
|
bp = buf;
|
|
for (;;) {
|
|
n = read(s, &ch, 1);
|
|
if (n < 0) {
|
|
if (errno != EINTR) {
|
|
perror("read");
|
|
exit(1);
|
|
}
|
|
continue;
|
|
}
|
|
if (n == 0)
|
|
return -1;
|
|
if (ch == '\n')
|
|
break;
|
|
if (bp < buf + sz - 2)
|
|
*bp++ = ch;
|
|
/* else silently truncate */
|
|
}
|
|
|
|
*bp++ = ch;
|
|
*bp = 0;
|
|
|
|
id = strtol(buf, &end, 16);
|
|
if (end == buf || *end != ' ') {
|
|
fprintf(stderr, "Malformed id in line %s", buf);
|
|
id = -1;
|
|
}
|
|
if (id > C_LAST)
|
|
id = -1;
|
|
return id;
|
|
}
|
|
|
|
int
|
|
expect(int s, int match, char *buf)
|
|
{
|
|
int code = recvline(s, buf);
|
|
return code == match;
|
|
}
|
|
|
|
void
|
|
sendcmd(int s, char *cmd, char *arg)
|
|
{
|
|
char buf[128];
|
|
char *p;
|
|
ssize_t n;
|
|
int len;
|
|
|
|
len = snprintf(buf, sizeof(buf), "%s %s\n",
|
|
cmd, arg != NULL ? arg : "");
|
|
if (len >= (int)sizeof(buf)) {
|
|
fprintf(stderr, "%s too long\n", cmd);
|
|
exit(1);
|
|
}
|
|
p = buf;
|
|
while (len > 0) {
|
|
n = write(s, buf, len);
|
|
if (n < 0) {
|
|
if (errno != EINTR) {
|
|
perror("sendcmd: write");
|
|
exit(1);
|
|
}
|
|
n = 0;
|
|
}
|
|
p += n;
|
|
len -= n;
|
|
}
|
|
}
|