2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2013, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure, Markus Armbruster
6 * Empire is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 * See files README, COPYING and CREDITS in the root of the source
22 * tree for related information and legal notices. It is expected
23 * that future projects/authors will amend these files as needed.
27 * expect.c: Read from the socket, expecting to see a particular code.
29 * Known contributors to this file:
31 * Markus Armbruster, 2007-2009
41 #include <sys/types.h>
42 #include <sys/socket.h>
48 recvline(int s, char *buf)
69 if (bp < buf + sz - 2)
71 /* else silently truncate */
85 id = strtol(line, &end, 36);
86 if (end == line || *end != ' ') {
87 fprintf(stderr, "Malformed id in line %s", line);
96 expect(int s, int match, char *buf)
98 return recvline(s, buf) == match;
102 sendcmd(int s, char *cmd, char *arg)
109 len = snprintf(buf, sizeof(buf), "%s%s%s\n",
110 cmd, arg ? " " : "", arg ? arg : "");
111 if (len >= (int)sizeof(buf)) {
112 fprintf(stderr, "%s too long\n", cmd);
117 n = write(s, buf, len);
119 if (errno != EINTR) {
120 perror("sendcmd: write");