2 * Copyright (c) 2008 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 #ifndef HAVE_SYS_TYPES_H
37 #include <sys/types.h>
39 #ifdef HAVE_SYS_WAIT_H
57 #endif /* STREAMPTY */
63 enum { CMD_EXPECT
= 0, CMD_SEND
, CMD_PASSWORD
} type
;
73 static struct command
*commands
, **next
= &commands
;
75 static sig_atomic_t alarmset
= 0;
77 static int timeout
= 10;
80 static int version_flag
;
84 static char line
[256] = { 0 };
87 caught_signal(int signo
)
96 #if defined(HAVE_OPENPTY) || defined(__linux) || defined(__osf__) /* XXX */
97 if(openpty(&master
, &slave
, line
, 0, 0) == 0)
99 #endif /* HAVE_OPENPTY .... */
111 for(q
= clone
; *q
; q
++){
112 master
= open(*q
, O_RDWR
);
120 strlcpy(line
, ptsname(master
), sizeof(line
));
121 slave
= open(line
, O_RDWR
);
123 errx(1, "failed to open slave when using %s", q
);
124 ioctl(slave
, I_PUSH
, "ptem");
125 ioctl(slave
, I_PUSH
, "ldterm");
131 #endif /* STREAMSPTY */
133 /* more cases, like open /dev/ptmx, etc */
143 iscmd(const char *buf
, const char *s
)
145 size_t len
= strlen(s
);
146 if (strncmp(buf
, s
, len
) != 0)
148 return estrdup(buf
+ len
);
152 parse_configuration(const char *fn
)
157 unsigned int lineno
= 0;
160 cmd
= fopen(fn
, "r");
162 err(1, "open: %s", fn
);
164 while (fgets(s
, sizeof(s
), cmd
) != NULL
) {
166 s
[strcspn(s
, "#\n")] = '\0';
169 c
= calloc(1, sizeof(*c
));
177 if ((str
= iscmd(s
, "expect ")) != NULL
) {
178 c
->type
= CMD_EXPECT
;
180 } else if ((str
= iscmd(s
, "send ")) != NULL
) {
183 } else if ((str
= iscmd(s
, "password ")) != NULL
) {
184 c
->type
= CMD_PASSWORD
;
187 errx(1, "Invalid command on line %d: %s", lineno
, s
);
199 eval_parent(pid_t pid
)
206 for (c
= commands
; c
!= NULL
; c
= c
->next
) {
210 printf("[expecting %s]", c
->str
);
213 while((sret
= read(master
, &in
, sizeof(in
))) > 0) {
216 if (c
->str
[len
] != in
) {
221 if (c
->str
[len
] == '\0')
225 if (alarmset
== SIGALRM
)
226 errx(1, "timeout waiting for %s (line %u)",
229 errx(1, "got a signal %d waiting for %s (line %u)",
230 alarmset
, c
->str
, c
->lineno
);
232 errx(1, "end command while waiting for %s (line %u)",
238 const char *msg
= (c
->type
== CMD_PASSWORD
) ? "****" : c
->str
;
241 printf("[send %s]", msg
);
243 len
= strlen(c
->str
);
246 if (c
->str
[i
] == '\\' && i
< len
- 1) {
250 case 'n': ctrl
= '\n'; break;
251 case 'r': ctrl
= '\r'; break;
252 case 't': ctrl
= '\t'; break;
254 errx(1, "unknown control char %c (line %u)",
255 c
->str
[i
], c
->lineno
);
257 if (net_write(master
, &ctrl
, 1) != 1)
258 errx(1, "command refused input (line %u)", c
->lineno
);
260 if (net_write(master
, &c
->str
[i
], 1) != 1)
261 errx(1, "command refused input (line %u)", c
->lineno
);
271 while(read(master
, &in
, sizeof(in
)) > 0)
275 printf("[end of program]\n");
278 * Fetch status from child
283 ret
= waitpid(pid
, &status
, 0);
286 if (WIFEXITED(status
) && WEXITSTATUS(status
))
287 return WEXITSTATUS(status
);
288 else if (WIFSIGNALED(status
)) {
289 printf("killed by signal: %d\n", WTERMSIG(status
));
300 static struct getargs args
[] = {
301 { "timeout", 't', arg_integer
, &timeout
, "timout", "seconds" },
302 { "verbose", 'v', arg_counter
, &verbose
, "verbose debugging" },
303 { "version", 0, arg_flag
, &version_flag
, "print version" },
304 { "help", 0, arg_flag
, &help_flag
, NULL
}
310 arg_printusage (args
, sizeof(args
)/sizeof(*args
), NULL
, "infile command..");
315 main(int argc
, char **argv
)
320 setprogname(argv
[0]);
322 if(getarg(args
, sizeof(args
) / sizeof(args
[0]), argc
, argv
, &optidx
))
329 fprintf (stderr
, "%s from %s-%s\n", getprogname(), PACKAGE
, VERSION
);
339 parse_configuration(argv
[0]);
348 err(1, "Failed to fork");
354 dup2(slave
, STDIN_FILENO
);
355 dup2(slave
, STDOUT_FILENO
);
356 dup2(slave
, STDERR_FILENO
);
357 closefrom(STDERR_FILENO
+ 1);
359 execvp(argv
[0], argv
); /* add NULL to end of array ? */
360 err(1, "Failed to exec: %s", argv
[0]);
366 sa
.sa_handler
= caught_signal
;
368 sigemptyset (&sa
.sa_mask
);
370 sigaction(SIGALRM
, &sa
, NULL
);
373 return eval_parent(pid
);