1 /* 2 * This code contains changes by 3 * Gunnar Ritter, Freiburg i. Br., Germany, March 2003. All rights reserved. 4 * 5 * Conditions 1, 2, and 4 and the no-warranty notice below apply 6 * to these changes. 7 * 8 * 9 * Copyright (c) 1991 10 * The Regents of the University of California. All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * 41 * Copyright(C) Caldera International Inc. 2001-2002. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * Redistributions of source code and documentation must retain the 47 * above copyright notice, this list of conditions and the following 48 * disclaimer. 49 * Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * All advertising materials mentioning features or use of this software 53 * must display the following acknowledgement: 54 * This product includes software developed or owned by Caldera 55 * International, Inc. 56 * Neither the name of Caldera International, Inc. nor the names of 57 * other contributors may be used to endorse or promote products 58 * derived from this software without specific prior written permission. 59 * 60 * USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA 61 * INTERNATIONAL, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR 62 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 63 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 64 * ARE DISCLAIMED. IN NO EVENT SHALL CALDERA INTERNATIONAL, INC. BE 65 * LIABLE FOR ANY DIRECT, INDIRECT INCIDENTAL, SPECIAL, EXEMPLARY, OR 66 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 67 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 68 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 69 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 70 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 71 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 72 */ 73 74 /* Sccsid @(#)diff.h 1.15 (gritter) 3/26/05> */ 75 /* from 4.3BSD diff.h 4.7 85/08/16 */ 76 77 /* 78 * diff - common declarations 79 */ 80 81 #include <stdio.h> 82 #include <ctype.h> 83 #include <sys/param.h> 84 #include <sys/stat.h> 85 #include <dirent.h> 86 #include <stdlib.h> 87 #include <string.h> 88 #include <limits.h> 89 #include <libgen.h> 90 #include <errno.h> 91 #include <setjmp.h> 92 93 #if defined (__GLIBC__) 94 #if defined (_IO_getc_unlocked) 95 #undef getc 96 #define getc(f) _IO_getc_unlocked(f) 97 #endif 98 #if defined (_IO_putc_unlocked) 99 #undef putc 100 #define putc(c, f) _IO_putc_unlocked(c, f) 101 #undef putchar 102 #define putchar(c) _IO_putc_unlocked(c, stdout) 103 #endif 104 #endif 105 106 /* 107 * Output format options 108 */ 109 int opt; 110 111 #define D_NORMAL 0 /* Normal output */ 112 #define D_EDIT -1 /* Editor script out */ 113 #define D_REVERSE 1 /* Reverse editor script */ 114 #define D_CONTEXT 2 /* Diff with context */ 115 #define D_IFDEF 3 /* Diff with merged #ifdef's */ 116 #define D_NREVERSE 4 /* Reverse ed script with numbered 117 lines and no trailing . */ 118 #define D_UNIFIED 5 /* Unified diff */ 119 120 int aflag; /* diff binary files */ 121 int tflag; /* expand tabs on output */ 122 int pflag; /* show surrounding C function */ 123 124 /* 125 * Algorithm related options 126 */ 127 int hflag; /* -h, use halfhearted DIFFH */ 128 int bflag; /* ignore blanks in comparisons */ 129 int wflag; /* totally ignore blanks in comparisons */ 130 int iflag; /* ignore case in comparisons */ 131 int Bflag; /* ignore changes that consist of blank lines */ 132 133 /* 134 * Options on hierarchical diffs. 135 */ 136 int lflag; /* long output format with header */ 137 int rflag; /* recursively trace directories */ 138 int sflag; /* announce files which are same */ 139 int Nflag; /* write text of nonexistant files */ 140 const char *start; /* do file only if name >= this */ 141 142 struct xclusion { 143 struct xclusion *x_nxt; 144 const char *x_pat; 145 } *xflag; /* patterns to exclude from comparison */ 146 147 /* 148 * Variables for -I D_IFDEF option. 149 */ 150 int wantelses; /* -E */ 151 char *ifdef1; /* String for -1 */ 152 char *ifdef2; /* String for -2 */ 153 char *endifname; /* What we will print on next #endif */ 154 int inifdef; 155 156 /* 157 * Variables for -c context option. 158 */ 159 int context; /* lines of context to be printed */ 160 161 /* 162 * State for exit status. 163 */ 164 int status; 165 int anychange; 166 char *tempfile1; /* used when comparing against std input */ 167 char *tempfile2; /* used when comparing against std input */ 168 169 /* 170 * Variables for diffdir. 171 */ 172 char **diffargv; /* option list to pass to recursive diffs */ 173 int recdepth; /* recursion depth */ 174 jmp_buf recenv; /* jump stack on error */ 175 176 struct stackblk { 177 struct stackblk *s_prev; 178 struct stackblk *s_next; 179 } *curstack; 180 181 /* 182 * Input file names. 183 * With diffdir, file1 and file2 are allocated BUFSIZ space, 184 * and padded with a '/', and then efile0 and efile1 point after 185 * the '/'. 186 */ 187 char *file1, *file2, *efile1, *efile2; 188 struct stat stb1, stb2; 189 190 extern const char diffh[], diff[], pr[]; 191 extern const char *argv0; 192 extern const char *progname; 193 int mb_cur_max; 194 extern int sysv3; 195 196 /* diff.c */ 197 void diffany(char **); 198 int min(int, int); 199 int max(int, int); 200 void done(void); 201 void *dalloc(size_t); 202 void *talloc(size_t); 203 void *ralloc(void *, size_t); 204 void tfree(void *); 205 void purgestack(void); 206 void oomsg(const char *); 207 /* diffdir.c */ 208 void diffdir(char **); 209 int ascii(int); 210 /* diffreg.c */ 211 void diffreg(void); 212