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FUSE_SETUP(3) Library Functions Manual FUSE_SETUP(3)

fuse_setupFUSE helper function

#include <fuse.h>

struct fuse *
fuse_setup(int argc, char **argv, const struct fuse_operations *ops, size_t size, char **mp, int *mt, void *data);

() is a helper function that mounts a FUSE file system, creates a new FUSE session and installs signal handlers that will try to unmount the file system on SIGINT, SIGTERM or SIGHUP.

() will parse the arguments specified by argv and if neither the -f, -d or -odebug options were specified, detach from the controlling terminal and run in the background. On success, mt will be 1 if the file system operations will be invoked in parallel (multi-threaded) or 0 if file system operations are serialized. File systems that do not support multi-threaded operation must include the -s argument in argv. OpenBSD does not currently support multi-threaded operation.

The file system will be mounted on mp, which is the directory specified by the first argument that does not match one of the options recognised by fuse_parse_cmdline(3).

fuse_operations is a struct of size size that contains pointers to FUSE file system operations. See fuse_new(3).

fuse_setup() will return NULL on failure.

fuse_main(3), fuse_mount(3), fuse_new(3), fuse_parse_cmdline(3), fuse_set_signal_handlers(3), fuse_teardown(3), fuse(4)

The fuse_setup() function conforms to FUSE 2.6.

The fuse_setup() function first appeared in OpenBSD 5.4.

Sylvestre Gallon <>
Helg Bredow <>

November 28, 2018 OpenBSD-6.9