GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/rdist/isexec.c Lines: 0 7 0.0 %
Date: 2016-12-06 Branches: 0 12 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: isexec.c,v 1.10 2015/01/20 09:00:16 guenther Exp $	*/
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/*
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 * Copyright (c) 1983 Regents of the University of California.
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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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 * 3. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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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/types.h>
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#include <elf_abi.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include "client.h"
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/*
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 * Determine whether 'file' is a binary executable or not.
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 */
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int
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isexec(char *file, struct stat *statp)
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{
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	Elf32_Ehdr hdr;
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	int fd, r;
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	/*
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	 * Must be a regular file that has some executable mode bit on
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	 */
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	if (!S_ISREG(statp->st_mode) ||
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	    !(statp->st_mode & (S_IXUSR|S_IXGRP|S_IXOTH)))
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		return(FALSE);
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	if ((fd = open(file, O_RDONLY, 0)) < 0)
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		return(FALSE);
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	r = read(fd, &hdr, sizeof(hdr)) == sizeof(hdr) &&
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	    IS_ELF(hdr) && hdr.e_type == ET_EXEC;
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	close(fd);
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	return (r);
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}