1 /* @(#)diff.h 4.3 05/07/82" */ 2 3 /* 4 * diff - common declarations 5 */ 6 7 #include <stdio.h> 8 #include <ctype.h> 9 #include <sys/param.h> 10 #include <sys/stat.h> 11 #include <signal.h> 12 #include <dir.h> 13 14 /* 15 * Output format options 16 */ 17 int opt; 18 19 #define D_NORMAL 0 /* Normal output */ 20 #define D_EDIT -1 /* Editor script out */ 21 #define D_REVERSE 1 /* Reverse editor script */ 22 #define D_CONTEXT 2 /* Diff with context */ 23 #define D_IFDEF 3 /* Diff with merged #ifdef's */ 24 25 /* 26 * Algorithm related options 27 */ 28 int hflag; /* -h, use halfhearted DIFFH */ 29 int bflag; /* ignore blanks in comparisions */ 30 31 /* 32 * Options on hierarchical diffs. 33 */ 34 int lflag; /* long output format with header */ 35 int rflag; /* recursively trace directories */ 36 int sflag; /* announce files which are same */ 37 char *start; /* do file only if name >= this */ 38 39 /* 40 * Variables for -I D_IFDEF option. 41 */ 42 int wantelses; /* -E */ 43 char *ifdef1; /* String for -1 */ 44 char *ifdef2; /* String for -2 */ 45 char *endifname; /* What we will print on next #endif */ 46 int inifdef; 47 48 /* 49 * Variables for -c context option. 50 */ 51 int context; /* lines of context to be printed */ 52 53 /* 54 * State for exit status. 55 */ 56 int status; 57 int anychange; 58 char *tempfile; /* used when comparing against std input */ 59 60 /* 61 * Variables for diffdir. 62 */ 63 char **diffargv; /* option list to pass to recursive diffs */ 64 65 /* 66 * Input file names. 67 * With diffdir, file1 and file2 are allocated BUFSIZ space, 68 * and padded with a '/', and then efile0 and efile1 point after 69 * the '/'. 70 */ 71 char *file1, *file2, *efile1, *efile2; 72 struct stat stb1, stb2; 73 struct stat stb1, stb2; 74 75 /* 76 * This is allocated early, and used 77 * to reset the free storage pointer to effect space compaction. 78 */ 79 char *dummy; 80 81 char *malloc(), *talloc(), *ralloc(); 82 char *savestr(), *splice(), *splicen(); 83 char *mktemp(), *copytemp(), *rindex(); 84 int done(); 85 86 extern char diffh[], diff[], pr[]; 87