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a2f733abcf
Apply the following automated changes to try to eliminate no-longer-needed sys/cdefs.h includes as well as now-empty blank lines in a row. Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/ Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/ Remove /\n+#if.*\n#endif.*\n+/ Remove /^#if.*\n#endif.*\n/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/ Sponsored by: Netflix
88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright 2020 Stefan Eßer <se@freebsd.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/limits.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <paths.h>
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#include <libutil.h>
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#include <unistd.h>
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#ifndef LOCALBASE_PATH
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#define LOCALBASE_PATH _PATH_LOCALBASE
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#endif
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#ifndef LOCALBASE_CTL_LEN
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#define LOCALBASE_CTL_LEN MAXPATHLEN
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#endif
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/* Any prefix guaranteed to not be the start of a valid path name */
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#define ILLEGAL_PREFIX "/dev/null/"
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const char *
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getlocalbase(void)
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{
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#if LOCALBASE_CTL_LEN > 0
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int localbase_oid[2] = {CTL_USER, USER_LOCALBASE};
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static char localpath[LOCALBASE_CTL_LEN];
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size_t localpathlen = LOCALBASE_CTL_LEN;
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#endif
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char *tmppath;
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static const char *localbase = NULL;
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if (localbase != NULL)
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return (localbase);
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if (issetugid() == 0) {
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tmppath = getenv("LOCALBASE");
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if (tmppath != NULL && tmppath[0] != '\0') {
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localbase = tmppath;
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return (localbase);
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}
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}
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#if LOCALBASE_CTL_LEN > 0
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if (sysctl(localbase_oid, 2, localpath, &localpathlen, NULL, 0) != 0) {
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if (errno != ENOMEM)
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localbase = LOCALBASE_PATH;
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else
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localbase = ILLEGAL_PREFIX;
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} else {
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if (localpath[0] != '\0')
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localbase = localpath;
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else
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localbase = LOCALBASE_PATH;
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}
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#else
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localbase = LOCALBASE_PATH;
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#endif
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return (localbase);
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}
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