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common.h revision 1.11 
      1 /*	$NetBSD: common.h,v 1.11 2002/03/11 18:47:51 kristerw Exp $	*/
      2 
      3 #define DEBUGGING
      4 
      5 /* shut lint up about the following when return value ignored */
      6 
      7 #define Signal (void)signal
      8 #define Unlink (void)unlink
      9 #define Lseek (void)lseek
     10 #define Fseek (void)fseek
     11 #define Fstat (void)fstat
     12 #define Pclose (void)pclose
     13 #define Close (void)close
     14 #define Fclose (void)fclose
     15 #define Fflush (void)fflush
     16 #define Sprintf (void)sprintf
     17 #define Strcpy (void)strcpy
     18 #define Strcat (void)strcat
     19 
     20 #include <stdio.h>
     21 #include <string.h>
     22 #include <assert.h>
     23 #include <sys/types.h>
     24 #include <sys/stat.h>
     25 #include <ctype.h>
     26 #include <signal.h>
     27 
     28 /* constants */
     29 
     30 /* AIX predefines these.  */
     31 #ifdef TRUE
     32 #undef TRUE
     33 #endif
     34 #ifdef FALSE
     35 #undef FALSE
     36 #endif
     37 #define TRUE (1)
     38 #define FALSE (0)
     39 
     40 #define MAXHUNKSIZE 100000		/* is this enough lines? */
     41 #define INITHUNKMAX 125			/* initial dynamic allocation size */
     42 #define MAXLINELEN 10240
     43 #define BUFFERSIZE 1024
     44 
     45 #define SCCSPREFIX "s."
     46 #define GET "get -e %s"
     47 #define SCCSDIFF "get -p %s | diff - %s >/dev/null"
     48 
     49 #define RCSSUFFIX ",v"
     50 #define CHECKOUT "co -l %s"
     51 #define RCSDIFF "rcsdiff %s > /dev/null"
     52 
     53 #define ORIGEXT ".orig"
     54 #define REJEXT ".rej"
     55 
     56 /* handy definitions */
     57 
     58 #define Nulline 0
     59 
     60 #define Ctl(ch) ((ch) & 037)
     61 
     62 #define strNE(s1,s2) (strcmp(s1, s2))
     63 #define strEQ(s1,s2) (!strcmp(s1, s2))
     64 #define strnNE(s1,s2,l) (strncmp(s1, s2, l))
     65 #define strnEQ(s1,s2,l) (!strncmp(s1, s2, l))
     66 
     67 /* typedefs */
     68 
     69 typedef char bool;
     70 typedef long LINENUM;			/* must be signed */
     71 
     72 /* globals */
     73 
     74 EXT int Argc;				/* guess */
     75 EXT char **Argv;
     76 EXT int Argc_last;			/* for restarting plan_b */
     77 EXT char **Argv_last;
     78 
     79 EXT struct stat filestat;		/* file statistics area */
     80 EXT int filemode INIT(0644);
     81 
     82 EXT char buf[MAXLINELEN];		/* general purpose buffer */
     83 EXT FILE *ofp INIT(NULL);		/* output file pointer */
     84 EXT FILE *rejfp INIT(NULL);		/* reject file pointer */
     85 
     86 EXT int myuid;				/* cache getuid return value */
     87 
     88 EXT bool using_plan_a INIT(TRUE);	/* try to keep everything in memory */
     89 EXT bool out_of_mem INIT(FALSE);	/* ran out of memory in plan a */
     90 
     91 #define MAXFILEC 2
     92 EXT int filec INIT(0);			/* how many file arguments? */
     93 EXT char *filearg[MAXFILEC];
     94 EXT bool ok_to_create_file INIT(FALSE);
     95 EXT bool filename_is_dev_null INIT(FALSE);
     96 EXT bool old_file_is_dev_null INIT(FALSE);
     97 EXT char *bestguess INIT(NULL);		/* guess at correct filename */
     98 
     99 EXT char *outname INIT(NULL);
    100 EXT char rejname[128];
    101 
    102 EXT char *origprae INIT(NULL);
    103 
    104 EXT char *TMPOUTNAME;
    105 EXT char *TMPINNAME;
    106 EXT char *TMPREJNAME;
    107 EXT char *TMPPATNAME;
    108 EXT bool toutkeep INIT(FALSE);
    109 EXT bool trejkeep INIT(FALSE);
    110 
    111 EXT LINENUM last_offset INIT(0);
    112 #ifdef DEBUGGING
    113 EXT int debug INIT(0);
    114 #endif
    115 EXT LINENUM maxfuzz INIT(2);
    116 EXT bool force INIT(FALSE);
    117 EXT bool batch INIT(FALSE);
    118 EXT bool verbose INIT(TRUE);
    119 EXT bool reverse INIT(FALSE);
    120 EXT bool noreverse INIT(FALSE);
    121 EXT bool skip_rest_of_patch INIT(FALSE);
    122 EXT int strippath INIT(957);
    123 EXT bool canonicalize INIT(FALSE);
    124 
    125 #define CONTEXT_DIFF 1
    126 #define NORMAL_DIFF 2
    127 #define ED_DIFF 3
    128 #define NEW_CONTEXT_DIFF 4
    129 #define UNI_DIFF 5
    130 EXT int diff_type INIT(0);
    131 
    132 EXT bool do_defines INIT(FALSE);	/* patch using ifdef, ifndef, etc. */
    133 EXT char if_defined[128];		/* #ifdef xyzzy */
    134 EXT char not_defined[128];		/* #ifndef xyzzy */
    135 EXT char else_defined[] INIT("#else\n");/* #else */
    136 EXT char end_defined[128];		/* #endif xyzzy */
    137 
    138 EXT char *revision INIT(NULL);		/* prerequisite revision, if any */
    139 
    140 #include <errno.h>
    141 
    142 #if !defined(S_ISDIR) && defined(S_IFDIR)
    143 #define	S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
    144 #endif
    145 #if !defined(S_ISREG) && defined(S_IFREG)
    146 #define	S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
    147 #endif
    148 
    149 void my_exit(int) __attribute__((__noreturn__));
    150