gllvm/shared/filetypes.go
2017-08-25 16:34:03 -07:00

82 lines
2.9 KiB
Go

//
// OCCAM
//
// Copyright (c) 2017, SRI International
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * Neither the name of SRI International nor the names of its contributors may
// be used to endorse or promote products derived from this software without
// specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
package shared
import (
"os/exec"
"strings"
)
const (
// File types
fileTypeUNDEFINED = iota
fileTypeELFEXECUTABLE
fileTypeELFOBJECT
fileTypeELFSHARED
fileTypeMACHEXECUTABLE
fileTypeMACHOBJECT
fileTypeMACHSHARED
fileTypeARCHIVE
)
func getFileType(realPath string) (fileType int) {
// We need the file command to guess the file type
cmd := exec.Command("file", realPath)
out, err := cmd.Output()
if err != nil {
LogFatal("There was an error getting the type of %s. Make sure that the 'file' command is installed.", realPath)
}
// Test the output
if fo := string(out); strings.Contains(fo, "ELF") && strings.Contains(fo, "executable") {
fileType = fileTypeELFEXECUTABLE
} else if strings.Contains(fo, "Mach-O") && strings.Contains(fo, "executable") {
fileType = fileTypeMACHEXECUTABLE
} else if strings.Contains(fo, "ELF") && strings.Contains(fo, "shared") {
fileType = fileTypeELFSHARED
} else if strings.Contains(fo, "Mach-O") && strings.Contains(fo, "dynamically linked shared") {
fileType = fileTypeMACHSHARED
} else if strings.Contains(fo, "current ar archive") {
fileType = fileTypeARCHIVE
} else if strings.Contains(fo, "ELF") && strings.Contains(fo, "relocatable") {
fileType = fileTypeELFOBJECT
} else if strings.Contains(fo, "Mach-O") && strings.Contains(fo, "object") {
fileType = fileTypeMACHOBJECT
} else {
fileType = fileTypeUNDEFINED
}
return
}