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This variable allows the loading of shared libraries via directory descriptors rather than via library paths. If LD_LIBRARY_PATH_FDS=3:4:12, the directories represented by file descriptors 3, 4 and 12 will searched for shared libraries before the normal path-based mechanisms are used. This allows us to execute unprivileged binaries from within a Capsicum sandbox even if they require shared libraries. Approved by: rwatson (mentor) Reviewed by: kib MFC after: 3 weeks Sponsored by: DARPA/AFRL
47 lines
2.0 KiB
C
47 lines
2.0 KiB
C
/*-
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* Copyright 2011 Konstantin Belousov <kib@FreeBSD.org>.
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* All rights reserved.
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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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef RTLD_PRINTF_H
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#define RTLD_PRINTF_H 1
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#include <sys/cdefs.h>
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#include <unistd.h>
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int rtld_snprintf(char *buf, size_t bufsize, const char *fmt, ...)
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__printflike(3, 4);
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int rtld_vsnprintf(char *buf, size_t bufsize, const char *fmt, va_list ap);
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int rtld_vfdprintf(int fd, const char *fmt, va_list ap);
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int rtld_fdprintf(int fd, const char *fmt, ...) __printflike(2, 3);
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void rtld_fdputstr(int fd, const char *str);
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void rtld_fdputchar(int fd, int c);
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#define rtld_printf(...) rtld_fdprintf(STDOUT_FILENO, __VA_ARGS__)
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#define rtld_putstr(str) rtld_fdputstr(STDOUT_FILENO, (str))
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#define rtld_putchar(c) rtld_fdputchar(STDOUT_FILENO, (c))
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#endif
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