4 * Command-line utility to transmit a server command.
11 #include <sys/types.h>
18 #if TIME_WITH_SYS_TIME
19 # include <sys/time.h>
23 # include <sys/time.h>
34 #include "citadel_ipc.h"
38 #define LOCKFILE "/tmp/LCK.sendcommand"
40 static CtdlIPC *ipc = NULL;
43 * make sure only one copy of sendcommand runs at a time, using lock files
45 int set_lockfile(void)
50 if ((lfp = fopen(LOCKFILE, "r")) != NULL) {
51 fscanf(lfp, "%d", &onppid);
53 if (!kill(onppid, 0) || errno == EPERM)
56 lfp = fopen(LOCKFILE, "w");
57 fprintf(lfp, "%ld\n", (long) getpid());
62 void remove_lockfile(void)
68 * Why both cleanup() and nq_cleanup() ? Notice the alarm() call in
69 * cleanup() . If for some reason sendcommand hangs waiting for the server
70 * to clean up, the alarm clock goes off and the program exits anyway.
71 * The cleanup() routine makes a check to ensure it's not reentering, in
72 * case the ipc module looped it somehow.
74 void nq_cleanup(int e)
81 * send binary to server
83 void serv_write(CtdlIPC *ipc, const char *buf, unsigned int nbytes)
85 unsigned int bytes_written = 0;
88 #if defined(HAVE_OPENSSL)
90 serv_write_ssl(ipc, buf, nbytes);
95 while (bytes_written < nbytes) {
96 retval = write(ipc->sock, &buf[bytes_written],
97 nbytes - bytes_written);
99 connection_died(ipc, 0);
102 bytes_written += retval;
109 static int nested = 0;
112 signal(SIGALRM, nq_cleanup);
113 serv_write(ipc, "\n", 1);
120 * This is implemented as a function rather than as a macro because the
121 * client-side IPC modules expect logoff() to be defined. They call logoff()
122 * when a problem connecting or staying connected to the server occurs.
130 * Connect sendcommand to the Citadel server running on this computer.
132 void np_attach_to_server(char *host, char *port)
135 char hostbuf[256], portbuf[256];
137 {"sendcommand", NULL};
140 fprintf(stderr, "Attaching to server...\n");
141 strcpy(hostbuf, host);
142 strcpy(portbuf, port);
143 ipc = CtdlIPC_new(1, args, hostbuf, portbuf);
145 fprintf(stderr, "Can't connect: %s\n", strerror(errno));
148 CtdlIPC_chat_recv(ipc, buf);
149 fprintf(stderr, "%s\n", &buf[4]);
150 snprintf(buf, sizeof buf, "IPGM %d", config.c_ipgm_secret);
151 r = CtdlIPCInternalProgram(ipc, config.c_ipgm_secret, buf);
152 fprintf(stderr, "%s\n", buf);
159 void sendcommand_die(void) {
167 int main(int argc, char **argv)
175 char relhome[PATH_MAX]="";
176 char ctdldir[PATH_MAX]=CTDLDIR;
180 int server_shutting_down = 0;
182 CtdlInitBase64Table();
184 strcpy(ctdl_home_directory, DEFAULT_PORT);
188 * Change directories if specified
190 for (a = 1; a < argc; ++a) {
191 if (!strncmp(argv[a], "-h", 2)) {
192 relh=argv[a][2]!='/';
193 if (!relh) safestrncpy(ctdl_home_directory, &argv[a][2],
194 sizeof ctdl_home_directory);
196 safestrncpy(relhome, &argv[a][2],
201 if (!IsEmptyStr(cmd))
203 strcat(cmd, argv[a]);
207 calc_dirs_n_files(relh, home, relhome, ctdldir, 0);
210 signal(SIGINT, cleanup);
211 signal(SIGQUIT, cleanup);
212 signal(SIGHUP, cleanup);
213 signal(SIGTERM, cleanup);
215 fprintf(stderr, "sendcommand: started (pid=%d) "
218 ctdl_home_directory);
222 signal(SIGALRM, nq_cleanup); /* Set up a watchdog type timer in case we hang */
224 np_attach_to_server(UDS, ctdl_home_directory);
226 setIPCDeathHook(sendcommand_die);
228 fprintf(stderr, "%s\n", cmd);
229 CtdlIPC_chat_send(ipc, cmd);
230 CtdlIPC_chat_recv(ipc, buf);
231 fprintf(stderr, "%s\n", buf);
236 if (!strncasecmp(&buf[1], "31", 2)) {
237 server_shutting_down = 1;
241 while (CtdlIPC_chat_recv(ipc, buf), strcmp(buf, "000")) {
243 alarm(5); /* Kick the watchdog timer */
245 } else if (buf[0] == '4') {
247 if (fgets(buf, sizeof buf, stdin) == NULL)
249 if (!IsEmptyStr(buf))
250 if (buf[strlen(buf) - 1] == '\n')
251 buf[strlen(buf) - 1] = 0;
252 if (!IsEmptyStr(buf))
253 if (buf[strlen(buf) - 1] == '\r')
254 buf[strlen(buf) - 1] = 0;
255 if (strcmp(buf, "000"))
256 CtdlIPC_chat_send(ipc, buf);
259 FD_SET(ipc->sock, &read_fd);
260 ret = select(ipc->sock+1, &read_fd, NULL, NULL, &tv);
263 printf("select failed: %d", err);
266 if (!(errno == EINTR || errno == EAGAIN))
267 printf("select failed: %d", err);
276 n = read(ipc->sock, rbuf, SIZ);
279 fprintf (stderr, rbuf);
283 alarm(5); /* Kick the watchdog timer */
284 } while (strcmp(buf, "000"));
285 CtdlIPC_chat_send(ipc, "\n");
286 CtdlIPC_chat_send(ipc, "000");
288 alarm(0); /* Shutdown the watchdog timer */
289 fprintf(stderr, "sendcommand: processing ended.\n");
291 /* Clean up and log off ... unless the server indicated that the command
292 * we sent is shutting it down, in which case we want to just cut the
293 * connection and exit.
295 if (server_shutting_down) {