57 lines
1.7 KiB
Go
57 lines
1.7 KiB
Go
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// Copyright (c) 2017, Google Inc.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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// check_imported_libraries.go checks that each of its arguments only imports a
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// whitelist of allowed libraries. This is used to avoid accidental dependencies
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// on libstdc++.so.
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package main
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import (
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"debug/elf"
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"fmt"
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"os"
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)
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func checkImportedLibraries(path string) {
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file, err := elf.Open(path)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Error opening %s: %s\n", path, err)
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os.Exit(1)
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}
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defer file.Close()
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libs, err := file.ImportedLibraries()
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if err != nil {
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fmt.Fprintf(os.Stderr, "Error reading %s: %s\n", path, err)
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os.Exit(1)
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}
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for _, lib := range libs {
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if lib != "libc.so.6" && lib != "libcrypto.so" && lib != "libpthread.so.0" {
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fmt.Printf("Invalid dependency for %s: %s\n", path, lib)
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fmt.Printf("All dependencies:\n")
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for _, lib := range libs {
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fmt.Printf(" %s\n", lib)
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}
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os.Exit(1)
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}
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}
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}
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func main() {
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for _, path := range os.Args[1:] {
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checkImportedLibraries(path)
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}
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}
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