ea8dc7e0f2
*- file is now broken into a library containing and processing the magic and a consumer binary.
192 lines
6.4 KiB
C
192 lines
6.4 KiB
C
/*
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* Copyright (c) Ian F. Darwin 1986-1995.
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* Software written by Ian F. Darwin and others;
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* maintained 1995-present by Christos Zoulas and others.
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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 immediately at the beginning of the file, without modification,
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* 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Ian F. Darwin and others.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* 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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/*
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* Names.h - names and types used by ascmagic in file(1).
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* These tokens are here because they can appear anywhere in
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* the first HOWMANY bytes, while tokens in MAGIC must
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* appear at fixed offsets into the file. Don't make HOWMANY
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* too high unless you have a very fast CPU.
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*
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* $Id: names.h,v 1.24 2004/03/22 19:09:12 christos Exp $
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*/
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/*
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modified by Chris Lowth - 9 April 2000
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to add mime type strings to the types table.
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*/
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/* these types are used to index the table 'types': keep em in sync! */
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#define L_C 0 /* first and foremost on UNIX */
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#define L_CC 1 /* Bjarne's postincrement */
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#define L_FORT 2 /* the oldest one */
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#define L_MAKE 3 /* Makefiles */
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#define L_PLI 4 /* PL/1 */
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#define L_MACH 5 /* some kinda assembler */
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#define L_ENG 6 /* English */
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#define L_PAS 7 /* Pascal */
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#define L_MAIL 8 /* Electronic mail */
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#define L_NEWS 9 /* Usenet Netnews */
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#define L_JAVA 10 /* Java code */
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#define L_HTML 11 /* HTML */
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#define L_BCPL 12 /* BCPL */
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#define L_M4 13 /* M4 */
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#define L_PO 14 /* PO */
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static const struct {
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const char *human;
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const char *mime;
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} types[] = {
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{ "C program", "text/x-c", },
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{ "C++ program", "text/x-c++" },
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{ "FORTRAN program", "text/x-fortran" },
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{ "make commands", "text/x-makefile" },
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{ "PL/1 program", "text/x-pl1" },
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{ "assembler program", "text/x-asm" },
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{ "English", "text/plain" },
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{ "Pascal program", "text/x-pascal" },
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{ "mail", "text/x-mail" },
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{ "news", "text/x-news" },
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{ "Java program", "text/x-java" },
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{ "HTML document", "text/html", },
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{ "BCPL program", "text/x-bcpl" },
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{ "M4 macro language pre-processor", "text/x-m4" },
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{ "PO (gettext message catalogue)", "text/x-po" },
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{ "cannot happen error on names.h/types", "error/x-error" },
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{ 0, 0}
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};
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/*
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* XXX - how should we distinguish Java from C++?
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* The trick used in a Debian snapshot, of having "extends" or "implements"
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* as tags for Java, doesn't work very well, given that those keywords
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* are often preceded by "class", which flags it as C++.
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*
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* Perhaps we need to be able to say
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*
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* If "class" then
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*
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* if "extends" or "implements" then
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* Java
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* else
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* C++
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* endif
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*
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* Or should we use other keywords, such as "package" or "import"?
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* Unfortunately, Ada95 uses "package", and Modula-3 uses "import",
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* although I infer from the language spec at
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*
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* http://www.research.digital.com/SRC/m3defn/html/m3.html
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*
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* that Modula-3 uses "IMPORT" rather than "import", i.e. it must be
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* in all caps.
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*
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* So, for now, we go with "import". We must put it before the C++
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* stuff, so that we don't misidentify Java as C++. Not using "package"
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* means we won't identify stuff that defines a package but imports
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* nothing; hopefully, very little Java code imports nothing (one of the
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* reasons for doing OO programming is to import as much as possible
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* and write only what you need to, right?).
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*
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* Unfortunately, "import" may cause us to misidentify English text
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* as Java, as it comes after "the" and "The". Perhaps we need a fancier
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* heuristic to identify Java?
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*/
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static struct names {
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const char *name;
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short type;
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} names[] = {
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/* These must be sorted by eye for optimal hit rate */
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/* Add to this list only after substantial meditation */
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{"msgid", L_PO},
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{"dnl", L_M4},
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{"import", L_JAVA},
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{"\"libhdr\"", L_BCPL},
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{"\"LIBHDR\"", L_BCPL},
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{"//", L_CC},
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{"template", L_CC},
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{"virtual", L_CC},
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{"class", L_CC},
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{"public:", L_CC},
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{"private:", L_CC},
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{"/*", L_C}, /* must precede "The", "the", etc. */
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{"#include", L_C},
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{"char", L_C},
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{"The", L_ENG},
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{"the", L_ENG},
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{"double", L_C},
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{"extern", L_C},
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{"float", L_C},
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{"struct", L_C},
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{"union", L_C},
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{"CFLAGS", L_MAKE},
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{"LDFLAGS", L_MAKE},
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{"all:", L_MAKE},
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{".PRECIOUS", L_MAKE},
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/* Too many files of text have these words in them. Find another way
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* to recognize Fortrash.
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*/
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#ifdef NOTDEF
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{"subroutine", L_FORT},
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{"function", L_FORT},
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{"block", L_FORT},
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{"common", L_FORT},
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{"dimension", L_FORT},
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{"integer", L_FORT},
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{"data", L_FORT},
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#endif /*NOTDEF*/
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{".ascii", L_MACH},
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{".asciiz", L_MACH},
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{".byte", L_MACH},
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{".even", L_MACH},
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{".globl", L_MACH},
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{".text", L_MACH},
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{"clr", L_MACH},
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{"(input,", L_PAS},
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{"dcl", L_PLI},
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{"Received:", L_MAIL},
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{">From", L_MAIL},
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{"Return-Path:",L_MAIL},
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{"Cc:", L_MAIL},
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{"Newsgroups:", L_NEWS},
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{"Path:", L_NEWS},
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{"Organization:",L_NEWS},
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{"href=", L_HTML},
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{"HREF=", L_HTML},
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{"<body", L_HTML},
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{"<BODY", L_HTML},
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{"<html", L_HTML},
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{"<HTML", L_HTML},
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{NULL, 0}
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};
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#define NNAMES ((sizeof(names)/sizeof(struct names)) - 1)
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