static void launch_input_program (void)
{
/* Launch the diff program. */
if (ignore_case) {
input_file = readpipe (DIFF_PROGRAM, "-i", left_side->temp_name, right_side->temp_name, NULL);
} else {
input_file = readpipe (DIFF_PROGRAM, left_side->temp_name, right_side->temp_name, NULL);
}
if (!input_file) {
errexit (EXIT_FAILURE, errno, "%s", DIFF_PROGRAM);
}
character = getc (input_file);
}
void setbacktick(int num, int lifespan, int tick, char **cmdv)
{
struct backtick **btp, *bt;
char **v;
for (btp = &backticks; (bt = *btp) != 0; btp = &bt->next)
if (bt->num == num)
break;
if (!bt && !cmdv)
return;
if (bt) {
for (v = bt->cmdv; *v; v++)
free(*v);
free(bt->cmdv);
if (bt->buf)
free(bt->buf);
if (bt->ev.fd >= 0)
close(bt->ev.fd);
evdeq(&bt->ev);
}
if (bt && !cmdv) {
*btp = bt->next;
free(bt);
return;
}
if (!bt) {
bt = malloc(sizeof *bt);
if (!bt) {
Msg(0, "%s", strnomem);
return;
}
memset(bt, 0, sizeof(*bt));
bt->next = 0;
*btp = bt;
}
bt->num = num;
bt->tick = tick;
bt->lifespan = lifespan;
bt->bestbefore = 0;
bt->result[0] = 0;
bt->buf = 0;
bt->bufi = 0;
bt->cmdv = cmdv;
bt->ev.fd = -1;
if (bt->tick == 0 && bt->lifespan == 0) {
bt->buf = malloc(MAXSTR);
if (bt->buf == 0) {
Msg(0, "%s", strnomem);
setbacktick(num, 0, 0, (char **)0);
return;
}
bt->ev.type = EV_READ;
bt->ev.fd = readpipe(bt->cmdv);
bt->ev.handler = backtick_fn;
bt->ev.data = (char *)bt;
if (bt->ev.fd >= 0)
evenq(&bt->ev);
}
}
static int readresponse(char *buf) {
int len;
len = readpipe(buf, BUFSIZE);
/* all ispell responses of any reasonable length should end in \n\n.
* depending on the speed of the spell checker, this may require more
* reading. */
if (len >= 2 && (buf[len-1] != '\n' || buf[len-2] != '\n')) {
len += readpipe(buf+len, BUFSIZE-len);
}
/* now we can remove all of the the trailing newlines. */
while (len > 0 && buf[len-1] == '\n')
buf[--len] = 0;
return len;
}
char *runbacktick(Backtick *bt, int *tickp, time_t now)
{
int f, i, l, j;
time_t now2;
if (bt->tick && (!*tickp || bt->tick < *tickp))
*tickp = bt->tick;
if ((bt->lifespan == 0 && bt->tick == 0) || now < bt->bestbefore) {
return bt->result;
}
f = readpipe(bt->cmdv);
if (f == -1)
return bt->result;
i = 0;
while ((l = read(f, bt->result + i, sizeof(bt->result) - i)) > 0) {
i += l;
for (j = 1; j < l; j++)
if (bt->result[i - j - 1] == '\n')
break;
if (j == l && i == sizeof(bt->result)) {
j = sizeof(bt->result) / 2;
l = j + 1;
}
if (j < l) {
memmove(bt->result, bt->result + i - j, j);
i = j;
}
}
close(f);
bt->result[sizeof(bt->result) - 1] = '\n';
if (i && bt->result[i - 1] == '\n')
i--;
bt->result[i] = 0;
backtick_filter(bt);
(void)time(&now2);
bt->bestbefore = now2 + bt->lifespan;
return bt->result;
}
static int readline(char *buf) {
return readpipe(buf, BUFSIZE);
}
int main(int argc, char *argv[])
{
int upload_pipe_fd;
char *who;
char *file;
#ifdef HAVE_SETLOCALE
# ifdef LC_MESSAGES
(void) setlocale(LC_MESSAGES, "");
# endif
# ifdef LC_CTYPE
(void) setlocale(LC_CTYPE, "");
# endif
# ifdef LC_COLLATE
(void) setlocale(LC_COLLATE, "");
# endif
#endif
if (init() < 0) {
return -1;
}
if (parseoptions(argc, argv) < 0) {
return -1;
}
if (script == NULL) {
fprintf(stderr, "Sorry, but I need -r <program to run>\n\n");
usage();
}
if (daemonize != 0) {
dodaemonize();
}
if ((upload_pipe_fd = upload_pipe_ropen()) == -1) {
return -1;
}
updatepidfile();
if (changeuidgid() < 0) {
perror("Identity change");
(void) unlink(uploadscript_pid_file);
return -1;
}
#ifdef SIGPIPE
signal(SIGPIPE, SIG_IGN);
#endif
#ifdef SIGCHLD
signal(SIGCHLD, SIG_DFL);
#endif
for (;;) {
if (readpipe(upload_pipe_fd, &who, &file) != 0) {
(void) sleep(1);
continue;
}
file = checkvirtual(file);
if (file != NULL && who != NULL) {
run(who, file, upload_pipe_fd);
}
}
/* NOTREACHED */
#if 0
close(upload_pipe_fd);
(void) unlink(uploadscript_pid_file);
#endif
return 0;
}
