int
main(int argc, char **argv)
{
int kq;
struct kevent *e, kev_r;
int n , i;
int optcode = 0;
int option_index = 0;
struct timespec tv;
FILE *fp;
char *watchfile = NULL;
int timeout = 0;
struct option long_options[] = {
{"file", required_argument, 0, C_FILE},
{"timeout", required_argument, 0, C_TIMEOUT},
/* End of options marker */
{0, 0, 0, 0}
};
if (argc < 2) {
cbsd_fwatch_usage();
return 0;
}
while (TRUE) {
optcode = getopt_long_only(argc, argv, "", long_options, &option_index);
if (optcode == -1)
break;
switch (optcode) {
case C_FILE:
watchfile = malloc(strlen(optarg) + 1);
memset(watchfile, 0, strlen(optarg) + 1);
strcpy(watchfile, optarg);
break;
case C_TIMEOUT:
timeout = atoi(optarg);
break;
}
} //while
//zero for getopt *variables for next execute
optarg = NULL;
optind = 0;
optopt = 0;
opterr = 0;
optreset = 0;
if (!watchfile) {
cbsd_fwatch_usage();
return 1;
}
fp = fopen(watchfile, "r");
if (!fp) {
printf("Can't open file for mon: %s\n", watchfile);
free(watchfile);
return 1;
}
kq = kqueue();
if (kq == -1) {
fclose(fp);
free(watchfile);
printf("kqueue error");
return 1;
}
e = malloc(argc * sizeof(struct kevent));
if (e == NULL) {
fclose(fp);
free(watchfile);
printf("malloc");
return 1;
}
i = 0;
//todo:multiple file alteration
EV_SET(e + i, (*fp)._file, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR, NOTE_DELETE | NOTE_WRITE, 0, NULL);
if (kevent(kq, e + i, 1, &kev_r, 0, NULL) == -1)
printf("kevent");
else
i++;
tv.tv_sec = timeout;
tv.tv_nsec = 0;
//tv.tv_usec = 0;
while (i > 0) {
if (kev_r.fflags & NOTE_WRITE) {
printf("updated\n");
} else if (kev_r.fflags & NOTE_DELETE) {
printf("deleted\n");
}
if (timeout == 0)
n = kevent(kq, NULL, 0, e, i, NULL);
else
n = kevent(kq, NULL, 0, e, i, &tv);
if (n == -1) {
fclose(fp);
printf("kevent");
free(e);
free(watchfile);
return 1;
}
i--;
}
free(e);
free(watchfile);
fclose(fp);
return (EX_OK);
}
int
cbsd_fwatchcmd(int argc, char *argv[])
{
int fd, kq, nev;
struct kevent ev;
int optcode = 0;
int option_index = 0;
struct timespec tv;
char *watchfile = NULL;
int timeout = 10;
char cmd[10];
struct option long_options[] = {
{ "file", required_argument, 0, C_FILE },
{ "timeout", required_argument, 0, C_TIMEOUT },
/* End of options marker */
{ 0, 0, 0, 0 }
};
if (argc < 2) {
cbsd_fwatch_usage();
return 0;
}
while (TRUE) {
optcode = getopt_long_only(argc, argv, "", long_options, &option_index);
if (optcode == -1)
break;
switch (optcode) {
case C_FILE:
watchfile = malloc(strlen(optarg) + 1);
memset(watchfile, 0, strlen(optarg) + 1);
strcpy(watchfile, optarg);
break;
case C_TIMEOUT:
timeout = atoi(optarg);
break;
}
} //while
//zero for getopt *variables for next execute
optarg = NULL;
optind = 0;
optopt = 0;
opterr = 0;
optreset = 0;
if (!watchfile) {
cbsd_fwatch_usage();
return 1;
}
if ((fd = open(watchfile, O_RDONLY)) == -1) {
out2fmt_flush("Cannot open: %s\n", watchfile);
ckfree(watchfile);
return(1);
}
if ((kq = kqueue()) == -1) {
out2fmt_flush("Cannot create kqueue\n");
close(fd);
ckfree(watchfile);
return 1;
}
EV_SET(&ev, fd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR,
NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND|NOTE_ATTRIB|NOTE_LINK|
NOTE_RENAME|NOTE_REVOKE, 0, 0);
if (kevent(kq, &ev, 1, NULL, 0, NULL) == -1) {
out2fmt_flush("kevent\n");
close(fd);
ckfree(watchfile);
close(kq);
return 1;
}
tv.tv_sec = timeout;
tv.tv_nsec = 0;
memset(cmd,0,sizeof(cmd));
if (timeout == 0)
nev = kevent(kq, NULL, 0, &ev, 1, NULL);
else
nev = kevent(kq, NULL, 0, &ev, 1, &tv);
if (nev == -1) {
out2fmt_flush("kevent\n");
close(fd);
ckfree(watchfile);
close(kq);
return 1;
}
close(kq);
close(fd);
if (nev != 0) {
if (ev.fflags & NOTE_DELETE) {
out2fmt_flush("deleted\n");
ev.fflags &= ~NOTE_DELETE;
}
if (ev.fflags & NOTE_WRITE) {
out2fmt_flush("written\n");
ev.fflags &= ~NOTE_WRITE;
}
if (ev.fflags & NOTE_EXTEND) {
out2fmt_flush("extended\n");
ev.fflags &= ~NOTE_EXTEND;
}
if (ev.fflags & NOTE_ATTRIB) {
out2fmt_flush("chmod/chown/utimes\n");
ev.fflags &= ~NOTE_ATTRIB;
}
if (ev.fflags & NOTE_LINK) {
out2fmt_flush("hardlinked\n");
ev.fflags &= ~NOTE_LINK;
}
if (ev.fflags & NOTE_RENAME) {
out2fmt_flush("renamed\n");
ev.fflags &= ~NOTE_RENAME;
}
if (ev.fflags & NOTE_REVOKE) {
out2fmt_flush("revoked\n");
ev.fflags &= ~NOTE_REVOKE;
}
}
ckfree(watchfile);
return 0;
}
