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File: [local] / src / lib / libfuse / debug.c (download)

Revision 1.2, Wed Dec 13 12:30:18 2017 UTC (6 years, 5 months ago) by helg
Branch: MAIN
CVS Tags: OPENBSD_7_5_BASE, OPENBSD_7_5, OPENBSD_7_4_BASE, OPENBSD_7_4, OPENBSD_7_3_BASE, OPENBSD_7_3, OPENBSD_7_2_BASE, OPENBSD_7_2, OPENBSD_7_1_BASE, OPENBSD_7_1, OPENBSD_7_0_BASE, OPENBSD_7_0, OPENBSD_6_9_BASE, OPENBSD_6_9, OPENBSD_6_8_BASE, OPENBSD_6_8, OPENBSD_6_7_BASE, OPENBSD_6_7, OPENBSD_6_6_BASE, OPENBSD_6_6, OPENBSD_6_5_BASE, OPENBSD_6_5, OPENBSD_6_4_BASE, OPENBSD_6_4, OPENBSD_6_3_BASE, OPENBSD_6_3, HEAD
Changes since 1.1: +3 -4 lines 

Add support for the -d (-o debug) option to libfuse. Currently works for FUSE
file systems that call fuse_parse_cmdline(3), fuse_main(3) or
fuse_setup(3).

ok mpi@, jca@

/*	$OpenBSD: debug.c,v 1.2 2017/12/13 12:30:18 helg Exp $	*/
/*
 * Copyright (c) 2011 Alexandre Ratchov <alex@caoua.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <stdlib.h>
#include <unistd.h>

#include "debug.h"

/*
 * debug level, -1 means uninitialized
 */
int ifuse_debug = -1;

void
ifuse_debug_init(void)
{
	char *dbg;

	/* Default to level 1 unless FUSE_DEBUG environment variable is set. */
	if (ifuse_debug < 0) {
		dbg = issetugid() ? NULL : getenv("FUSE_DEBUG");
		if (!dbg || sscanf(dbg, "%u", &ifuse_debug) != 1)
			ifuse_debug = 1;
	}
}