98 lines
1.4 KiB
C
98 lines
1.4 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/syscall.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/stat.h>
|
|
#include <errno.h>
|
|
|
|
int
|
|
readline(int fd, char *buf)
|
|
{
|
|
int r;
|
|
int rc = 0;
|
|
|
|
while ((r = read(fd, buf, 1)) == 1) {
|
|
rc++;
|
|
if (*buf == '\n')
|
|
break;
|
|
buf++;
|
|
}
|
|
if (r == -1) {
|
|
perror("read");
|
|
exit(1);
|
|
}
|
|
if (!rc) {
|
|
fprintf(stderr, "CT200x read: BAD EOF\n");
|
|
exit(1);
|
|
}
|
|
*buf = '\0';
|
|
return rc;
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int fds[2];
|
|
pid_t mcexec;
|
|
struct stat sb;
|
|
char line[80];
|
|
char *m;
|
|
int rc;
|
|
int t;
|
|
int p;
|
|
int s;
|
|
int st;
|
|
|
|
if (syscall(732) != -1) {
|
|
fprintf(stderr, "run under Linux!\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (stat(argv[1], &sb) == -1) {
|
|
fprintf(stderr, "no %s found\n", argv[1]);
|
|
exit(1);
|
|
}
|
|
if (pipe(fds) == -1) {
|
|
perror("pipe");
|
|
exit(1);
|
|
}
|
|
|
|
if ((mcexec = fork()) == 0) {
|
|
char param[10];
|
|
char *args[4];
|
|
|
|
close(fds[0]);
|
|
args[0] = "mcexec";
|
|
args[1] = argv[1];
|
|
sprintf(param, "%d", fds[1]);
|
|
args[2] = param;
|
|
args[3] = NULL;
|
|
if (stat("mcexec", &sb) == -1) {
|
|
execvp("mcexec", args);
|
|
}
|
|
else {
|
|
execv("./mcexec", args);
|
|
}
|
|
perror("execvp");
|
|
exit(1);
|
|
}
|
|
if (mcexec == -1) {
|
|
perror("fork");
|
|
exit(1);
|
|
}
|
|
close(fds[1]);
|
|
|
|
readline(fds[0], line);
|
|
sscanf(line, "%d %d %d", &t, &p, &s);
|
|
|
|
sleep(t);
|
|
kill(p, s);
|
|
|
|
while(waitpid(mcexec, &st, 0) == -1 && errno == EINTR);
|
|
|
|
exit(0);
|
|
}
|