130 lines
3.0 KiB
Diff
130 lines
3.0 KiB
Diff
--- src/killall5.c
|
|
+++ src/killall5.c
|
|
@@ -284,6 +284,7 @@
|
|
|
|
/*
|
|
* Read the proc filesystem.
|
|
+ * CWD must be /proc.
|
|
*/
|
|
int readproc()
|
|
{
|
|
@@ -299,7 +300,7 @@
|
|
int pid, f;
|
|
|
|
/* Open the /proc directory. */
|
|
- if ((dir = opendir("/proc")) == NULL) {
|
|
+ if ((dir = opendir(".")) == NULL) {
|
|
nsyslog(LOG_ERR, "cannot opendir(/proc)");
|
|
return -1;
|
|
}
|
|
@@ -326,10 +327,10 @@
|
|
memset(p, 0, sizeof(PROC));
|
|
|
|
/* Open the status file. */
|
|
- snprintf(path, sizeof(path), "/proc/%s/stat", d->d_name);
|
|
+ snprintf(path, sizeof(path), "%s/stat", d->d_name);
|
|
|
|
/* Read SID & statname from it. */
|
|
- if ((fp = fopen(path, "r")) != NULL) {
|
|
+ if ((fp = fopen(path, "r")) != NULL) {
|
|
buf[0] = 0;
|
|
fgets(buf, sizeof(buf), fp);
|
|
|
|
@@ -343,7 +344,7 @@
|
|
if (q == NULL) {
|
|
p->sid = 0;
|
|
nsyslog(LOG_ERR,
|
|
- "can't get program name from %s\n",
|
|
+ "can't get program name from /proc/%s\n",
|
|
path);
|
|
if (p->argv0) free(p->argv0);
|
|
if (p->argv1) free(p->argv1);
|
|
@@ -389,7 +390,7 @@
|
|
continue;
|
|
}
|
|
|
|
- snprintf(path, sizeof(path), "/proc/%s/cmdline", d->d_name);
|
|
+ snprintf(path, sizeof(path), "%s/cmdline", d->d_name);
|
|
if ((fp = fopen(path, "r")) != NULL) {
|
|
|
|
/* Now read argv[0] */
|
|
@@ -456,6 +457,39 @@
|
|
return 0;
|
|
}
|
|
|
|
+/*
|
|
+ * Scan the filedescriptors of pid for /dev/fuse
|
|
+ * CWD must be /proc.
|
|
+ */
|
|
+int is_fuse(int pid) {
|
|
+ DIR *dir;
|
|
+ char path[256];
|
|
+ char buf[256];
|
|
+ struct dirent *d;
|
|
+ ssize_t len;
|
|
+
|
|
+ /* Open /proc/pid/fd/ */
|
|
+ snprintf(path, sizeof(path), "%d/fd", pid);
|
|
+ if ((dir = opendir(path)) != NULL) {
|
|
+ /* Walk through the directory. */
|
|
+ while ((d = readdir(dir)) != NULL) {
|
|
+ /* check for /dev/fuse */
|
|
+ snprintf(path, sizeof(path), "%d/fd/%s",
|
|
+ pid, d->d_name);
|
|
+ if ((len = readlink(path, buf, sizeof(buf))) > 0) {
|
|
+ if (strncmp("/dev/fuse", buf, len) == 0) {
|
|
+ /* Fuse filesystem */
|
|
+ return 1;
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+ closedir(dir);
|
|
+ }
|
|
+
|
|
+ /* Not a fuse filesystem */
|
|
+ return 0;
|
|
+}
|
|
+
|
|
PIDQ_HEAD *init_pid_q(PIDQ_HEAD *q)
|
|
{
|
|
q->head = q->next = q->tail = NULL;
|
|
@@ -688,6 +722,11 @@
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
+ if (chdir("/proc") == -1) {
|
|
+ nsyslog(LOG_ERR, "chdir /proc failed");
|
|
+ return(1);
|
|
+ }
|
|
+
|
|
/* Print out process-ID's one by one. */
|
|
readproc();
|
|
for(f = 0; f < argc; f++) {
|
|
@@ -759,6 +798,11 @@
|
|
/* Which NFS partitions are online? */
|
|
init_nfs();
|
|
|
|
+ if (chdir("/proc") == -1) {
|
|
+ nsyslog(LOG_ERR, "chdir /proc failed");
|
|
+ return(1);
|
|
+ }
|
|
+
|
|
/*
|
|
* Ignoring SIGKILL and SIGSTOP do not make sense, but
|
|
* someday kill(-1, sig) might kill ourself if we don't
|
|
@@ -779,11 +823,12 @@
|
|
exit(1);
|
|
}
|
|
|
|
- /* Now kill all processes except our session. */
|
|
+ /* Now kill all processes except init (pid 1), our session,
|
|
+ and FUSE filesystems. */
|
|
sid = (int)getsid(0);
|
|
pid = (int)getpid();
|
|
for (p = plist; p; p = p->next) {
|
|
- if (p->pid == 1 || p->pid == pid || p->sid == sid || p->kernel) {
|
|
+ if (p->pid == 1 || p->pid == pid || p->sid == sid || p->kernel || is_fuse(p->pid)) {
|
|
kill(p->pid, SIGCONT);
|
|
continue;
|
|
}
|