ef30b5a809
This change is made in the name of GNU patch compatibility. If GNU patch is fed a zero-length patch, it will exit successfully with no output. This is used in at least one port to date (comms/wsjtx), and we break on this usage. It seems unlikely that anyone relies on patch(1) calling their completely empty patch garbage and failing, and GNU compatibility is a plus if it helps with porting, so make the switch. Reported by: db MFC after: 2 weeks
113 lines
3.1 KiB
C
113 lines
3.1 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: common.h,v 1.26 2006/03/11 19:41:30 otto Exp $
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <stdbool.h>
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#include <stdint.h>
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#define DEBUGGING
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/* constants */
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#define MAXHUNKSIZE 200000 /* is this enough lines? */
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#define INITHUNKMAX 125 /* initial dynamic allocation size */
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#define INITLINELEN 4096
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#define BUFFERSIZE 4096
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#define LINENUM_MAX LONG_MAX
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#define ORIGEXT ".orig"
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#define REJEXT ".rej"
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/* handy definitions */
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#define strEQ(s1,s2) (strcmp(s1, s2) == 0)
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#define strnNE(s1,s2,l) (strncmp(s1, s2, l) != 0)
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#define strnEQ(s1,s2,l) (strncmp(s1, s2, l) == 0)
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/* typedefs */
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typedef long LINENUM; /* must be signed */
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/* globals */
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extern mode_t filemode;
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extern char *buf; /* general purpose buffer */
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extern size_t buf_size; /* size of general purpose buffer */
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extern bool using_plan_a; /* try to keep everything in memory */
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extern bool out_of_mem; /* ran out of memory in plan a */
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extern bool nonempty_patchf_seen; /* seen a non-zero-length patch file? */
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#define MAXFILEC 2
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extern char *filearg[MAXFILEC];
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extern bool ok_to_create_file;
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extern char *outname;
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extern char *origprae;
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extern char *TMPOUTNAME;
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extern char *TMPINNAME;
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extern char *TMPREJNAME;
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extern char *TMPPATNAME;
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extern bool toutkeep;
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extern bool trejkeep;
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#ifdef DEBUGGING
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extern int debug;
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#endif
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extern bool force;
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extern bool batch;
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extern bool verbose;
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extern bool reverse;
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extern bool noreverse;
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extern bool skip_rest_of_patch;
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extern int strippath;
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extern bool canonicalize;
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/* TRUE if -C was specified on command line. */
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extern bool check_only;
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extern bool warn_on_invalid_line;
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extern bool last_line_missing_eol;
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#define CONTEXT_DIFF 1
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#define NORMAL_DIFF 2
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#define ED_DIFF 3
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#define NEW_CONTEXT_DIFF 4
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#define UNI_DIFF 5
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extern int diff_type;
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extern char *revision; /* prerequisite revision, if any */
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extern LINENUM input_lines; /* how long is input file in lines */
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extern int posix;
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