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common.h revision 1.18 
      1 /*	$NetBSD: common.h,v 1.18 2007/10/14 04:54:34 lukem Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988, Larry Wall
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following condition
      8  * is met:
      9  *  1. Redistributions of source code must retain the above copyright
     10  *     notice, this condition and the following disclaimer.
     11  *
     12  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     13  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     14  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     15  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     16  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     17  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     18  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     19  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     20  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     21  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     22  * SUCH DAMAGE.
     23  */
     24 
     25 #define DEBUGGING
     26 
     27 /* shut lint up about the following when return value ignored */
     28 
     29 #define Signal (void)signal
     30 #define Unlink (void)unlink
     31 #define Lseek (void)lseek
     32 #define Fseek (void)fseek
     33 #define Fstat (void)fstat
     34 #define Pclose (void)pclose
     35 #define Close (void)close
     36 #define Fclose (void)fclose
     37 #define Fflush (void)fflush
     38 
     39 #include <stdio.h>
     40 #include <string.h>
     41 #include <assert.h>
     42 #include <sys/types.h>
     43 #include <sys/stat.h>
     44 #include <ctype.h>
     45 #include <signal.h>
     46 
     47 /* constants */
     48 
     49 /* AIX predefines these.  */
     50 #ifdef TRUE
     51 #undef TRUE
     52 #endif
     53 #ifdef FALSE
     54 #undef FALSE
     55 #endif
     56 #define TRUE (1)
     57 #define FALSE (0)
     58 
     59 #define MAXHUNKSIZE 100000		/* is this enough lines? */
     60 #define INITHUNKMAX 125			/* initial dynamic allocation size */
     61 #define MAXLINELEN 10240
     62 
     63 #define SCCSPREFIX "s."
     64 #define GET "get -e %s"
     65 #define SCCSDIFF "get -p %s | diff - %s >/dev/null"
     66 
     67 #define RCSSUFFIX ",v"
     68 #define CHECKOUT "co -l %s"
     69 #define RCSDIFF "rcsdiff %s > /dev/null"
     70 
     71 #define ORIGEXT ".orig"
     72 #define REJEXT ".rej"
     73 
     74 /* handy definitions */
     75 
     76 #define Nulline 0
     77 
     78 #define strNE(s1,s2) (strcmp(s1, s2))
     79 #define strEQ(s1,s2) (!strcmp(s1, s2))
     80 #define strnNE(s1,s2,l) (strncmp(s1, s2, l))
     81 #define strnEQ(s1,s2,l) (!strncmp(s1, s2, l))
     82 
     83 /* typedefs */
     84 
     85 typedef char bool;
     86 typedef int LINENUM;			/* must be signed */
     87 
     88 /* globals */
     89 
     90 EXT int Argc;				/* guess */
     91 EXT char **Argv;
     92 
     93 /* TRUE if -C was specified on command line.  */
     94 EXT int check_only;
     95 
     96 EXT struct stat filestat;		/* file statistics area */
     97 EXT mode_t filemode INIT(0644);
     98 
     99 EXT char buf[MAXLINELEN];		/* general purpose buffer */
    100 EXT FILE *ofp INIT(NULL);		/* output file pointer */
    101 EXT FILE *rejfp INIT(NULL);		/* reject file pointer */
    102 
    103 EXT int myuid;				/* cache getuid return value */
    104 
    105 #define MAXFILEC 2
    106 EXT int filec INIT(0);			/* how many file arguments? */
    107 EXT char *filearg[MAXFILEC];
    108 EXT bool ok_to_create_file INIT(FALSE);
    109 EXT bool filename_is_dev_null INIT(FALSE);
    110 EXT bool old_file_is_dev_null INIT(FALSE);
    111 EXT char *bestguess INIT(NULL);		/* guess at correct filename */
    112 
    113 EXT char *outname INIT(NULL);
    114 EXT char rejname[128];
    115 
    116 EXT char *origprae INIT(NULL);
    117 
    118 EXT char *TMPOUTNAME;
    119 EXT char *TMPINNAME;
    120 EXT char *TMPREJNAME;
    121 EXT char *TMPPATNAME;
    122 EXT bool toutkeep INIT(FALSE);
    123 EXT bool trejkeep INIT(FALSE);
    124 
    125 EXT LINENUM last_offset INIT(0);
    126 #ifdef DEBUGGING
    127 EXT int debug INIT(0);
    128 #endif
    129 EXT LINENUM maxfuzz INIT(2);
    130 EXT bool force INIT(FALSE);
    131 EXT bool batch INIT(FALSE);
    132 EXT bool verbose INIT(TRUE);
    133 EXT bool reverse INIT(FALSE);
    134 EXT bool noreverse INIT(FALSE);
    135 EXT bool skip_rest_of_patch INIT(FALSE);
    136 EXT int strippath INIT(957);
    137 EXT bool canonicalize INIT(FALSE);
    138 
    139 #define CONTEXT_DIFF 1
    140 #define NORMAL_DIFF 2
    141 #define ED_DIFF 3
    142 #define NEW_CONTEXT_DIFF 4
    143 #define UNI_DIFF 5
    144 EXT int diff_type INIT(0);
    145 
    146 EXT bool do_defines INIT(FALSE);	/* patch using ifdef, ifndef, etc. */
    147 EXT char if_defined[128];		/* #ifdef xyzzy */
    148 EXT char not_defined[128];		/* #ifndef xyzzy */
    149 EXT char else_defined[] INIT("#else\n");/* #else */
    150 EXT char end_defined[128];		/* #endif xyzzy */
    151 
    152 EXT char *revision INIT(NULL);		/* prerequisite revision, if any */
    153 
    154 #include <errno.h>
    155 
    156 #if !defined(S_ISDIR) && defined(S_IFDIR)
    157 #define	S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
    158 #endif
    159 #if !defined(S_ISREG) && defined(S_IFREG)
    160 #define	S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
    161 #endif
    162 
    163 void my_exit(int) __attribute__((__noreturn__));
    164 void my_sig_exit(int) __attribute__((__noreturn__));
    165