50dacbf6c2
We have a bad habit of duplicating contents of files that are sourced from /dev/null and applied more than once... take the more sane (in most ways) GNU route and complain if the file exists and offer reversal options. This still falls short a little bit as selecting "don't reverse, apply anyway" will still give you duplicated file contents. There's probably other issues as well, but awareness is the first step to happiness. MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D21535
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/*-
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* Copyright 1986, Larry Wall
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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 condition is met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this condition and the following disclaimer.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* 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 OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* 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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* patch - a program to apply diffs to original files
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*
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* -C option added in 1998, original code by Marc Espie, based on FreeBSD
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* behaviour
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*
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* $OpenBSD: pch.h,v 1.9 2003/10/31 20:20:45 millert Exp $
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* $FreeBSD$
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*/
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#define OLD_FILE 0
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#define NEW_FILE 1
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#define INDEX_FILE 2
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#define MAX_FILE 3
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struct file_name {
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char *path;
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bool exists;
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};
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extern char *source_file;
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void re_patch(void);
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void open_patch_file(const char *);
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void set_hunkmax(void);
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bool there_is_another_patch(void);
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bool another_hunk(void);
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bool pch_swap(void);
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char *pfetch(LINENUM);
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unsigned short pch_line_len(LINENUM);
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LINENUM pch_first(void);
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LINENUM pch_ptrn_lines(void);
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LINENUM pch_newfirst(void);
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LINENUM pch_repl_lines(void);
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LINENUM pch_end(void);
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LINENUM pch_context(void);
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LINENUM pch_hunk_beg(void);
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char pch_char(LINENUM);
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void do_ed_script(void);
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