2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2007, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
6 * This program 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 2 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, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See files README, COPYING and CREDITS in the root of the source
23 * tree for related information and legal notices. It is expected
24 * that future projects/authors will amend these files as needed.
28 * expect.c: Read from the socket, expecting to see a particular code.
30 * Known contributors to this file:
42 #include <sys/types.h>
43 #include <sys/socket.h>
49 #define recv(sock, buffer, buf_size, flags) \
50 w32_recv((sock), (buffer), (buf_size), (flags))
51 #define read(sock, buffer, buf_size) \
52 w32_recv((sock), (buffer), (buf_size), 0)
53 #define write(sock, buffer, buf_size) \
54 w32_send((sock), (buffer), (buf_size), 0)
58 recvline(int s, char *buf)
70 n = recv(s, ptr, size, MSG_PEEK);
77 if ((p = strchr(ptr, '\n')) == NULL) {
81 perror("expect: read");
85 fprintf(stderr, "expect: short read (%d not %d)\n", cc, n);
89 if ((n = recv(s, ptr, size, MSG_PEEK)) <= 0) {
95 } while ((p = strchr(ptr, '\n')) == 0);
96 newline = 1 + p - buf;
99 newline = 1 + p - ptr;
100 cc = read(s, buf, newline);
102 perror("expect: read #2");
106 fprintf(stderr, "expect: short read #2 (%d not %d)\n",
112 if (!isxdigit(buf[0]) || buf[1] != ' ') {
113 fprintf(stderr, "Malformed line %s\n", buf);
116 return strtol(buf, NULL, 16);
120 expect(int s, int match, char *buf)
122 int code = recvline(s, buf);
123 return code == match;
127 sendcmd(int s, char *cmd, char *arg)
134 len = snprintf(buf, sizeof(buf), "%s %s\n",
135 cmd, arg != NULL ? arg : "");
136 if (len >= (int)sizeof(buf)) {
137 fprintf(stderr, "%s too long\n", cmd);
142 n = write(s, buf, len);
144 if (errno != EINTR) {
145 perror("sendcmd: write");