File sysvinit-2.90-no-kill.patch of Package sysvinit

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File sysvinit-2.90-no-kill.patch of Package sysvinit (Revision 415708b818e36062e41f12617e029343)

Currently displaying revision 415708b818e36062e41f12617e029343 , Show latest

---
 src/killall5.c |   52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

--- src/killall5.c
+++ src/killall5.c	2019-09-18 07:41:29.094181373 +0000
@@ -478,6 +478,38 @@ 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).
  */
@@ -683,6 +715,26 @@ 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;

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File sysvinit-2.90-no-kill.patch of Package sysvinit (Revision 415708b818e36062e41f12617e029343)

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