bugdavfs2 - Bugs: bug #64795, davfs-1.7.0 fails silently if fuse...


bug #64795: davfs-1.7.0 fails silently if fuse module not alreay loaded

Submitter:  None
Submitted:  Thu 19 Oct 2023 04:41:02 PM UTC
Category:  None Severity:  3 - Normal
Item Group:  None Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open
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Thu 19 Oct 2023 04:41:02 PM UTC, original submission:  

The ERR makro called below in src/kernel-interface.c terminates the program on nonzero errno.

If fuse is currently not yet available, the errno resulting from the first call to open() will be 19 (no such device) and thus fork() will never be called and the "/sbin/modprobe fuse" command never be executed.

158     *dev = open(path, O_RDWR | O_NONBLOCK);
160     if (*dev <= 0) {
161         ERR(_("loading kernel module fuse"));
162         int ret;
163         pid_t pid = fork();
164         if (pid == 0) {
165 #if defined(_FreeBSD_)
166             execl("/sbin/kldload", "kldload", "fusefs", NULL);
167 #elif defined(_linux_)
168             execl("/sbin/modprobe", "modprobe", "fuse", NULL);
169 #endif

A tested fix consist in inserting errno=0 before the call to ERR().



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