--- src/killall5.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) --- src/killall5.c +++ src/killall5.c 2018-08-06 12:45:03.832836347 +0000 @@ -470,6 +470,38 @@ int readarg(FILE *fp, char *buf, int sz) } /* + * Scan the filedescriptors of pid for /dev/fuse + */ +int is_fuse(const char *pid) { + DIR *dir; + char path[256]; + char buf[256]; + struct dirent *d; + ssize_t len; + + /* Open /proc/pid/fd/ */ + snprintf(path, sizeof(path), "/proc/%s/fd", pid); + if ((dir = opendir(path)) != NULL) { + int dfd = dirfd(dir); + /* Walk through the directory. */ + while ((d = readdir(dir)) != NULL) { + if (*d->d_name == '.') + continue; + /* check for /dev/fuse */ + if ((len = readlinkat(dfd, d->d_name, buf, sizeof(buf))) > 0) { + buf[len] = '\0'; + if (strcmp("/dev/fuse", buf) == 0) + return 1; /* Fuse filesystem */ + } + } + closedir(dir); + } + + /* Not a fuse filesystem */ + return 0; +} + +/* * Read the proc filesystem. * CWD must be /proc to avoid problems if / is affected by the killing (ie depend on fuse). */ @@ -674,6 +706,26 @@ int readproc(int do_stat) p->nfs = 0; switch (do_stat) { + case NO_STAT: + if ((len = readlink(path, buf, PATH_MAX)) < 0) + break; + buf[len] = '\0'; + + /* Check for uevent handler, mdmon, and for providers + of FUSE filesystems */ + if ((strncmp(buf, "/sbin/udevd", 11) == 0) || + (strncmp(buf, "/sbin/mdmon", 11) == 0) || + (is_fuse(d->d_name))) { + OMIT *restrict optr; + + xmemalign((void*)&optr, sizeof(void*), alignof(OMIT)); + optr->next = omit; + optr->prev = (OMIT*)0; + optr->pid = pid; + omit = optr; + } + + break; case DO_NETFS: if ((p->nfs = check4nfs(path, buf))) goto link;