1/* RCS common definitions and data structures */ 2 3#define RCSBASE "$FreeBSD$" 4 5/* Copyright 1982, 1988, 1989 Walter Tichy 6 Copyright 1990, 1991, 1992, 1993, 1994, 1995 Paul Eggert 7 Distributed under license by the Free Software Foundation, Inc. 8 9This file is part of RCS. 10 11RCS is free software; you can redistribute it and/or modify 12it under the terms of the GNU General Public License as published by 13the Free Software Foundation; either version 2, or (at your option) 14any later version. 15 16RCS is distributed in the hope that it will be useful, 17but WITHOUT ANY WARRANTY; without even the implied warranty of 18MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19GNU General Public License for more details. 20 21You should have received a copy of the GNU General Public License 22along with RCS; see the file COPYING. 23If not, write to the Free Software Foundation, 2459 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 25 26Report problems and direct all questions to: 27 28 rcs-bugs@cs.purdue.edu 29 30*/ 31 32/* 33 * Revision 5.20 1995/06/16 06:19:24 eggert 34 * Update FSF address. 35 * 36 * Revision 5.19 1995/06/01 16:23:43 eggert 37 * (SIZEABLE_PATH): Don't depend on PATH_MAX: it's not worth configuring. 38 * (Ioffset_type,BINARY_EXPAND,MIN_UNEXPAND,MIN_UNCHANGED_EXPAND): New macros. 39 * (maps_memory): New macro; replaces many instances of `has_mmap'. 40 * (cacheptr): Renamed from cachetell. 41 * (struct RILE): New alternate name for RILE; the type is now recursive. 42 * (deallocate): New member for RILE, used for generic buffer deallocation. 43 * (cacheunget_): No longer take a failure arg; just call Ierror on failure. 44 * (struct rcslock): Renamed from struct lock, to avoid collisions with 45 * system headers on some hosts. All users changed. 46 * (basefilename): Renamed from basename, likewise. 47 * (dirtpname): Remove; no longer external. 48 * (dirlen, dateform): Remove; no longer used. 49 * (cmpdate, fopenSafer, fdSafer, readAccessFilenameBuffer): New functions. 50 * (zonelenmax): Increase to 9 for full ISO 8601 format. 51 * (catchmmapints): Depend on has_NFS. 52 * 53 * Revision 5.18 1994/03/17 14:05:48 eggert 54 * Add primitives for reading backwards from a RILE; 55 * this is needed to go back and find the $Log prefix. 56 * Specify subprocess input via file descriptor, not file name. Remove lint. 57 * 58 * Revision 5.17 1993/11/09 17:40:15 eggert 59 * Move RCS-specific time handling into rcstime.c. 60 * printf_string now takes two arguments, alas. 61 * 62 * Revision 5.16 1993/11/03 17:42:27 eggert 63 * Don't arbitrarily limit the number of joins. Remove `nil'. 64 * Add Name keyword. Don't discard ignored phrases. 65 * Add support for merge -A vs -E, and allow up to three labels. 66 * Improve quality of diagnostics and prototypes. 67 * 68 * Revision 5.15 1992/07/28 16:12:44 eggert 69 * Statement macro names now end in _. 70 * 71 * Revision 5.14 1992/02/17 23:02:22 eggert 72 * Add -T support. Work around NFS mmap SIGBUS problem. 73 * 74 * Revision 5.13 1992/01/24 18:44:19 eggert 75 * Add support for bad_creat0. lint -> RCS_lint 76 * 77 * Revision 5.12 1992/01/06 02:42:34 eggert 78 * while (E) ; -> while (E) continue; 79 * 80 * Revision 5.11 1991/10/07 17:32:46 eggert 81 * Support piece tables even if !has_mmap. 82 * 83 * Revision 5.10 1991/09/24 00:28:39 eggert 84 * Remove unexported functions. 85 * 86 * Revision 5.9 1991/08/19 03:13:55 eggert 87 * Add piece tables and other tuneups, and NFS workarounds. 88 * 89 * Revision 5.8 1991/04/21 11:58:20 eggert 90 * Add -x, RCSINIT, MS-DOS support. 91 * 92 * Revision 5.7 1991/02/28 19:18:50 eggert 93 * Try setuid() if seteuid() doesn't work. 94 * 95 * Revision 5.6 1991/02/26 17:48:37 eggert 96 * Support new link behavior. Move ANSI C / Posix declarations into conf.sh. 97 * 98 * Revision 5.5 1990/12/04 05:18:43 eggert 99 * Use -I for prompts and -q for diagnostics. 100 * 101 * Revision 5.4 1990/11/01 05:03:35 eggert 102 * Don't assume that builtins are functions; they may be macros. 103 * Permit arbitrary data in logs. 104 * 105 * Revision 5.3 1990/09/26 23:36:58 eggert 106 * Port wait() to non-Posix ANSI C hosts. 107 * 108 * Revision 5.2 1990/09/04 08:02:20 eggert 109 * Don't redefine NAME_MAX, PATH_MAX. 110 * Improve incomplete line handling. Standardize yes-or-no procedure. 111 * 112 * Revision 5.1 1990/08/29 07:13:53 eggert 113 * Add -kkvl. Fix type typos exposed by porting. Clean old log messages too. 114 * 115 * Revision 5.0 1990/08/22 08:12:44 eggert 116 * Adjust ANSI C / Posix support. Add -k, -V, setuid. Don't call access(). 117 * Remove compile-time limits; use malloc instead. 118 * Ansify and Posixate. Add support for ISO 8859. 119 * Remove snoop and v2 support. 120 * 121 * Revision 4.9 89/05/01 15:17:14 narten 122 * botched previous USG fix 123 * 124 * Revision 4.8 89/05/01 14:53:05 narten 125 * changed #include <strings.h> -> string.h for USG systems. 126 * 127 * Revision 4.7 88/11/08 15:58:45 narten 128 * removed defs for functions loaded from libraries 129 * 130 * Revision 4.6 88/08/09 19:12:36 eggert 131 * Shrink stdio code size; remove lint; permit -Dhshsize=nn. 132 * 133 * Revision 4.5 87/12/18 17:06:41 narten 134 * made removed BSD ifdef, now uses V4_2BSD 135 * 136 * Revision 4.4 87/10/18 10:29:49 narten 137 * Updating version numbers 138 * Changes relative to 1.1 are actually relative to 4.2 139 * 140 * Revision 1.3 87/09/24 14:02:25 narten 141 * changes for lint 142 * 143 * Revision 1.2 87/03/27 14:22:02 jenkins 144 * Port to suns 145 * 146 * Revision 4.2 83/12/20 16:04:20 wft 147 * merged 3.6.1.1 and 4.1 (SMALLOG, logsize). 148 * moved setting of STRICT_LOCKING to Makefile. 149 * changed DOLLAR to UNKN (conflict with KDELIM). 150 * 151 * Revision 4.1 83/05/04 09:12:41 wft 152 * Added markers Id and RCSfile. 153 * Added Dbranch for default branches. 154 * 155 * Revision 3.6.1.1 83/12/02 21:56:22 wft 156 * Increased logsize, added macro SMALLOG. 157 * 158 * Revision 3.6 83/01/15 16:43:28 wft 159 * 4.2 prerelease 160 * 161 * Revision 3.6 83/01/15 16:43:28 wft 162 * Replaced dbm.h with BYTESIZ, fixed definition of rindex(). 163 * Added variants of NCPFN and NCPPN for bsd 4.2, selected by defining V4_2BSD. 164 * Added macro DELNUMFORM to have uniform format for printing delta text nodes. 165 * Added macro DELETE to mark deleted deltas. 166 * 167 * Revision 3.5 82/12/10 12:16:56 wft 168 * Added two forms of DATEFORM, one using %02d, the other %.2d. 169 * 170 * Revision 3.4 82/12/04 20:01:25 wft 171 * added LOCKER, Locker, and USG (redefinition of rindex). 172 * 173 * Revision 3.3 82/12/03 12:22:04 wft 174 * Added dbm.h, stdio.h, RCSBASE, RCSSEP, RCSSUF, WORKMODE, TMPFILE3, 175 * PRINTDATE, PRINTTIME, map, and ctab; removed Suffix. Redefined keyvallength 176 * using NCPPN. Changed putc() to abort on write error. 177 * 178 * Revision 3.2 82/10/18 15:03:52 wft 179 * added macro STRICT_LOCKING, removed RCSUMASK. 180 * renamed JOINFILE[1,2] to JOINFIL[1,2]. 181 * 182 * Revision 3.1 82/10/11 19:41:17 wft 183 * removed NBPW, NBPC, NCPW. 184 * added typdef int void to aid compiling 185 */ 186 187 188#include "conf.h" 189 190 191#define EXIT_TROUBLE DIFF_TROUBLE 192 193#ifdef _POSIX_PATH_MAX 194# define SIZEABLE_PATH _POSIX_PATH_MAX 195#else 196# define SIZEABLE_PATH 255 /* size of a large path; not a hard limit */ 197#endif 198 199/* for traditional C hosts with unusual size arguments */ 200#define Fread(p,s,n,f) fread(p, (freadarg_type)(s), (freadarg_type)(n), f) 201#define Fwrite(p,s,n,f) fwrite(p, (freadarg_type)(s), (freadarg_type)(n), f) 202 203 204/* 205 * Parameters 206 */ 207 208/* backwards compatibility with old versions of RCS */ 209#define VERSION_min 3 /* old output RCS format supported */ 210#define VERSION_max 5 /* newest output RCS format supported */ 211#ifndef VERSION_DEFAULT /* default RCS output format */ 212# define VERSION_DEFAULT VERSION_max 213#endif 214#define VERSION(n) ((n) - VERSION_DEFAULT) /* internally, 0 is the default */ 215 216#ifndef STRICT_LOCKING 217#define STRICT_LOCKING 1 218#endif 219 /* 0 sets the default locking to non-strict; */ 220 /* used in experimental environments. */ 221 /* 1 sets the default locking to strict; */ 222 /* used in production environments. */ 223 224#define yearlength 16 /* (good through AD 9,999,999,999,999,999) */ 225#define datesize (yearlength+16) /* size of output of time2date */ 226#define RCSTMPPREFIX '_' /* prefix for temp files in working dir */ 227#define KDELIM '$' /* delimiter for keywords */ 228#define VDELIM ':' /* separates keywords from values */ 229#define DEFAULTSTATE "Exp" /* default state of revisions */ 230 231 232 233#define true 1 234#define false 0 235 236 237/* 238 * RILE - readonly file 239 * declarecache; - declares local cache for RILE variable(s) 240 * setupcache - sets up the local RILE cache, but does not initialize it 241 * cache, uncache - caches and uncaches the local RILE; 242 * (uncache,cache) is needed around functions that advance the RILE pointer 243 * Igeteof_(f,c,s) - get a char c from f, executing statement s at EOF 244 * cachegeteof_(c,s) - Igeteof_ applied to the local RILE 245 * Iget_(f,c) - like Igeteof_, except EOF is an error 246 * cacheget_(c) - Iget_ applied to the local RILE 247 * cacheunget_(f,c,s) - read c backwards from cached f, executing s at BOF 248 * Ifileno, Ioffset_type, Irewind, Itell - analogs to stdio routines 249 * 250 * By conventions, macros whose names end in _ are statements, not expressions. 251 * Following such macros with `; else' results in a syntax error. 252 */ 253 254#define maps_memory (has_map_fd || has_mmap) 255 256#if large_memory 257 typedef unsigned char const *Iptr_type; 258 typedef struct RILE { 259 Iptr_type ptr, lim; 260 unsigned char *base; /* not Iptr_type for lint's sake */ 261 unsigned char *readlim; 262 int fd; 263# if maps_memory 264 void (*deallocate) P((struct RILE *)); 265# else 266 FILE *stream; 267# endif 268 } RILE; 269# if maps_memory 270# define declarecache register Iptr_type ptr, lim 271# define setupcache(f) (lim = (f)->lim) 272# define Igeteof_(f,c,s) if ((f)->ptr==(f)->lim) s else (c)= *(f)->ptr++; 273# define cachegeteof_(c,s) if (ptr==lim) s else (c)= *ptr++; 274# else 275 int Igetmore P((RILE*)); 276# define declarecache register Iptr_type ptr; register RILE *rRILE 277# define setupcache(f) (rRILE = (f)) 278# define Igeteof_(f,c,s) if ((f)->ptr==(f)->readlim && !Igetmore(f)) s else (c)= *(f)->ptr++; 279# define cachegeteof_(c,s) if (ptr==rRILE->readlim && !Igetmore(rRILE)) s else (c)= *ptr++; 280# endif 281# define uncache(f) ((f)->ptr = ptr) 282# define cache(f) (ptr = (f)->ptr) 283# define Iget_(f,c) Igeteof_(f,c,Ieof();) 284# define cacheget_(c) cachegeteof_(c,Ieof();) 285# define cacheunget_(f,c) (c)=(--ptr)[-1]; 286# define Ioffset_type size_t 287# define Itell(f) ((f)->ptr - (f)->base) 288# define Irewind(f) ((f)->ptr = (f)->base) 289# define cacheptr() ptr 290# define Ifileno(f) ((f)->fd) 291#else 292# define RILE FILE 293# define declarecache register FILE *ptr 294# define setupcache(f) (ptr = (f)) 295# define uncache(f) 296# define cache(f) 297# define Igeteof_(f,c,s) {if(((c)=getc(f))==EOF){testIerror(f);if(feof(f))s}} 298# define cachegeteof_(c,s) Igeteof_(ptr,c,s) 299# define Iget_(f,c) { if (((c)=getc(f))==EOF) testIeof(f); } 300# define cacheget_(c) Iget_(ptr,c) 301# define cacheunget_(f,c) if(fseek(ptr,-2L,SEEK_CUR))Ierror();else cacheget_(c) 302# define Ioffset_type long 303# define Itell(f) ftell(f) 304# define Ifileno(f) fileno(f) 305#endif 306 307/* Print a char, but abort on write error. */ 308#define aputc_(c,o) { if (putc(c,o)==EOF) testOerror(o); } 309 310/* Get a character from an RCS file, perhaps copying to a new RCS file. */ 311#define GETCeof_(o,c,s) { cachegeteof_(c,s) if (o) aputc_(c,o) } 312#define GETC_(o,c) { cacheget_(c) if (o) aputc_(c,o) } 313 314 315#define WORKMODE(RCSmode, writable) (((RCSmode)&(mode_t)~(S_IWUSR|S_IWGRP|S_IWOTH)) | ((writable)?S_IWUSR:0)) 316/* computes mode of working file: same as RCSmode, but write permission */ 317/* determined by writable */ 318 319 320/* character classes and token codes */ 321enum tokens { 322/* classes */ DELIM, DIGIT, IDCHAR, NEWLN, LETTER, Letter, 323 PERIOD, SBEGIN, SPACE, UNKN, 324/* tokens */ COLON, ID, NUM, SEMI, STRING 325}; 326 327#define SDELIM '@' /* the actual character is needed for string handling*/ 328/* SDELIM must be consistent with ctab[], so that ctab[SDELIM]==SBEGIN. 329 * there should be no overlap among SDELIM, KDELIM, and VDELIM 330 */ 331 332#define isdigit(c) (((unsigned)(c)-'0') <= 9) /* faster than ctab[c]==DIGIT */ 333 334 335 336 337 338/*************************************** 339 * Data structures for the symbol table 340 ***************************************/ 341 342/* Buffer of arbitrary data */ 343struct buf { 344 char *string; 345 size_t size; 346}; 347struct cbuf { 348 char const *string; 349 size_t size; 350}; 351 352/* Hash table entry */ 353struct hshentry { 354 char const * num; /* pointer to revision number (ASCIZ) */ 355 char const * date; /* pointer to date of checkin */ 356 char const * author; /* login of person checking in */ 357 char const * lockedby; /* who locks the revision */ 358 char const * state; /* state of revision (Exp by default) */ 359 char const * name; /* name (if any) by which retrieved */ 360 struct cbuf log; /* log message requested at checkin */ 361 struct branchhead * branches; /* list of first revisions on branches*/ 362 struct cbuf ig; /* ignored phrases in admin part */ 363 struct cbuf igtext; /* ignored phrases in deltatext part */ 364 struct hshentry * next; /* next revision on same branch */ 365 struct hshentry * nexthsh; /* next revision with same hash value */ 366 long insertlns;/* lines inserted (computed by rlog) */ 367 long deletelns;/* lines deleted (computed by rlog) */ 368 char selector; /* true if selected, false if deleted */ 369}; 370 371/* list of hash entries */ 372struct hshentries { 373 struct hshentries *rest; 374 struct hshentry *first; 375}; 376 377/* list element for branch lists */ 378struct branchhead { 379 struct hshentry * hsh; 380 struct branchhead * nextbranch; 381}; 382 383/* accesslist element */ 384struct access { 385 char const * login; 386 struct access * nextaccess; 387}; 388 389/* list element for locks */ 390struct rcslock { 391 char const * login; 392 struct hshentry * delta; 393 struct rcslock * nextlock; 394}; 395 396/* list element for symbolic names */ 397struct assoc { 398 char const * symbol; 399 char const * num; 400 struct assoc * nextassoc; 401}; 402 403 404#define mainArgs (argc,argv) int argc; char **argv; 405 406#if RCS_lint 407# define libId(name,rcsid) 408# define mainProg(name,cmd,rcsid) int name mainArgs 409#else 410# define libId(name,rcsid) char const name[] = rcsid; 411# define mainProg(n,c,i) char const Copyright[] = "Copyright 1982,1988,1989 Walter F. Tichy, Purdue CS\nCopyright 1990,1991,1992,1993,1994,1995 Paul Eggert", baseid[] = RCSBASE, cmdid[] = c; libId(n,i) int main P((int,char**)); int main mainArgs 412#endif 413 414/* 415 * Markers for keyword expansion (used in co and ident) 416 * Every byte must have class LETTER or Letter. 417 */ 418#define AUTHOR "Author" 419#define DATE "Date" 420#define HEADER "Header" 421#define IDH "Id" 422#define LOCKER "Locker" 423#define LOG "Log" 424#define NAME "Name" 425#define RCSFILE "RCSfile" 426#define REVISION "Revision" 427#define SOURCE "Source" 428#define STATE "State" 429#define CVSHEADER "CVSHeader" 430#define keylength 9 /* max length of any of the above keywords */ 431 432enum markers { Nomatch, Author, Date, Header, Id, 433 Locker, Log, Name, RCSfile, Revision, Source, State, CVSHeader, 434 LocalId }; 435 /* This must be in the same order as rcskeys.c's Keyword[] array. */ 436 437#define DELNUMFORM "\n\n%s\n%s\n" 438/* used by putdtext and scanlogtext */ 439 440#define EMPTYLOG "*** empty log message ***" /* used by ci and rlog */ 441 442/* main program */ 443extern char const cmdid[]; 444void exiterr P((void)) exiting; 445 446/* merge */ 447int merge P((int,char const*,char const*const[3],char const*const[3])); 448 449/* rcsedit */ 450#define ciklogsize 23 /* sizeof("checked in with -k by ") */ 451extern FILE *fcopy; 452extern char const *resultname; 453extern char const ciklog[ciklogsize]; 454extern int locker_expansion; 455RILE *rcswriteopen P((struct buf*,struct stat*,int)); 456char const *makedirtemp P((int)); 457char const *getcaller P((void)); 458int addlock P((struct hshentry*,int)); 459int addsymbol P((char const*,char const*,int)); 460int checkaccesslist P((void)); 461int chnamemod P((FILE**,char const*,char const*,int,mode_t,time_t)); 462int donerewrite P((int,time_t)); 463int dorewrite P((int,int)); 464int expandline P((RILE*,FILE*,struct hshentry const*,int,FILE*,int)); 465int findlock P((int,struct hshentry**)); 466int setmtime P((char const*,time_t)); 467void ORCSclose P((void)); 468void ORCSerror P((void)); 469void copystring P((void)); 470void dirtempunlink P((void)); 471void enterstring P((void)); 472void finishedit P((struct hshentry const*,FILE*,int)); 473void keepdirtemp P((char const*)); 474void openfcopy P((FILE*)); 475void snapshotedit P((FILE*)); 476void xpandstring P((struct hshentry const*)); 477#if has_NFS || bad_unlink 478 int un_link P((char const*)); 479#else 480# define un_link(s) unlink(s) 481#endif 482#if large_memory 483 void edit_string P((void)); 484# define editstring(delta) edit_string() 485#else 486 void editstring P((struct hshentry const*)); 487#endif 488 489/* rcsfcmp */ 490int rcsfcmp P((RILE*,struct stat const*,char const*,struct hshentry const*)); 491 492/* rcsfnms */ 493#define bufautobegin(b) clear_buf(b) 494#define clear_buf(b) (VOID ((b)->string = 0, (b)->size = 0)) 495extern FILE *workstdout; 496extern char *workname; 497extern char const *RCSname; 498extern char const *suffixes; 499extern int fdlock; 500extern struct stat RCSstat; 501RILE *rcsreadopen P((struct buf*,struct stat*,int)); 502char *bufenlarge P((struct buf*,char const**)); 503char const *basefilename P((char const*)); 504char const *getfullRCSname P((void)); 505char const *getfullCVSname P((void)); 506char const *maketemp P((int)); 507char const *rcssuffix P((char const*)); 508int pairnames P((int,char**,RILE*(*)P((struct buf*,struct stat*,int)),int,int)); 509struct cbuf bufremember P((struct buf*,size_t)); 510void bufalloc P((struct buf*,size_t)); 511void bufautoend P((struct buf*)); 512void bufrealloc P((struct buf*,size_t)); 513void bufscat P((struct buf*,char const*)); 514void bufscpy P((struct buf*,char const*)); 515void tempunlink P((void)); 516 517/* rcsgen */ 518extern int interactiveflag; 519extern struct buf curlogbuf; 520char const *buildrevision P((struct hshentries const*,struct hshentry*,FILE*,int)); 521int getcstdin P((void)); 522int putdtext P((struct hshentry const*,char const*,FILE*,int)); 523int ttystdin P((void)); 524int yesorno P((int,char const*,...)) printf_string(2,3); 525struct cbuf cleanlogmsg P((char*,size_t)); 526struct cbuf getsstdin P((char const*,char const*,char const*,struct buf*)); 527void putdesc P((int,char*)); 528void putdftext P((struct hshentry const*,RILE*,FILE*,int)); 529 530/* rcskeep */ 531extern int prevkeys; 532extern struct buf prevauthor, prevdate, prevname, prevrev, prevstate; 533int getoldkeys P((RILE*)); 534 535/* rcskeys */ 536extern char const *Keyword[]; 537extern enum markers LocalIdMode; 538enum markers trymatch P((char const*)); 539void setRCSLocalId(char const *); 540void setIncExc(char const *); 541 542/* rcslex */ 543extern FILE *foutptr; 544extern FILE *frewrite; 545extern RILE *finptr; 546extern char const *NextString; 547extern enum tokens nexttok; 548extern int hshenter; 549extern int nerror; 550extern int nextc; 551extern int quietflag; 552extern long rcsline; 553char const *getid P((void)); 554void efaterror P((char const*)) exiting; 555void enfaterror P((int,char const*)) exiting; 556void fatcleanup P((int)) exiting; 557void faterror P((char const*,...)) printf_string_exiting(1,2); 558void fatserror P((char const*,...)) printf_string_exiting(1,2); 559void rcsfaterror P((char const*,...)) printf_string_exiting(1,2); 560void Ieof P((void)) exiting; 561void Ierror P((void)) exiting; 562void Oerror P((void)) exiting; 563char *checkid P((char*,int)); 564char *checksym P((char*,int)); 565int eoflex P((void)); 566int getkeyopt P((char const*)); 567int getlex P((enum tokens)); 568struct cbuf getphrases P((char const*)); 569struct cbuf savestring P((struct buf*)); 570struct hshentry *getnum P((void)); 571void Ifclose P((RILE*)); 572void Izclose P((RILE**)); 573void Lexinit P((void)); 574void Ofclose P((FILE*)); 575void Orewind P((FILE*)); 576void Ozclose P((FILE**)); 577void aflush P((FILE*)); 578void afputc P((int,FILE*)); 579void aprintf P((FILE*,char const*,...)) printf_string(2,3); 580void aputs P((char const*,FILE*)); 581void checksid P((char*)); 582void checkssym P((char*)); 583void diagnose P((char const*,...)) printf_string(1,2); 584void eerror P((char const*)); 585void eflush P((void)); 586void enerror P((int,char const*)); 587void error P((char const*,...)) printf_string(1,2); 588void fvfprintf P((FILE*,char const*,va_list)); 589void getkey P((char const*)); 590void getkeystring P((char const*)); 591void nextlex P((void)); 592void oflush P((void)); 593void printstring P((void)); 594void readstring P((void)); 595void redefined P((int)); 596void rcserror P((char const*,...)) printf_string(1,2); 597void rcswarn P((char const*,...)) printf_string(1,2); 598void testIerror P((FILE*)); 599void testOerror P((FILE*)); 600void warn P((char const*,...)) printf_string(1,2); 601void warnignore P((void)); 602void workerror P((char const*,...)) printf_string(1,2); 603void workwarn P((char const*,...)) printf_string(1,2); 604#if has_madvise && has_mmap && large_memory 605 void advise_access P((RILE*,int)); 606# define if_advise_access(p,f,advice) if (p) advise_access(f,advice) 607#else 608# define advise_access(f,advice) 609# define if_advise_access(p,f,advice) 610#endif 611#if large_memory && maps_memory 612 RILE *I_open P((char const*,struct stat*)); 613# define Iopen(f,m,s) I_open(f,s) 614#else 615 RILE *Iopen P((char const*,char const*,struct stat*)); 616#endif 617#if !large_memory 618 void testIeof P((FILE*)); 619 void Irewind P((RILE*)); 620#endif 621 622/* rcsmap */ 623extern enum tokens const ctab[]; 624 625/* rcsrev */ 626char *partialno P((struct buf*,char const*,int)); 627char const *namedrev P((char const*,struct hshentry*)); 628char const *tiprev P((void)); 629int cmpdate P((char const*,char const*)); 630int cmpnum P((char const*,char const*)); 631int cmpnumfld P((char const*,char const*,int)); 632int compartial P((char const*,char const*,int)); 633int expandsym P((char const*,struct buf*)); 634int fexpandsym P((char const*,struct buf*,RILE*)); 635struct hshentry *genrevs P((char const*,char const*,char const*,char const*,struct hshentries**)); 636int countnumflds P((char const*)); 637void getbranchno P((char const*,struct buf*)); 638 639/* rcssyn */ 640/* These expand modes must agree with Expand_names[] in rcssyn.c. */ 641#define KEYVAL_EXPAND 0 /* -kkv `$Keyword: value $' */ 642#define KEYVALLOCK_EXPAND 1 /* -kkvl `$Keyword: value locker $' */ 643#define KEY_EXPAND 2 /* -kk `$Keyword$' */ 644#define VAL_EXPAND 3 /* -kv `value' */ 645#define OLD_EXPAND 4 /* -ko use old string, omitting expansion */ 646#define BINARY_EXPAND 5 /* -kb like -ko, but use binary mode I/O */ 647#define MIN_UNEXPAND OLD_EXPAND /* min value for no logical expansion */ 648#define MIN_UNCHANGED_EXPAND (OPEN_O_BINARY ? BINARY_EXPAND : OLD_EXPAND) 649 /* min value guaranteed to yield an identical file */ 650struct diffcmd { 651 long 652 line1, /* number of first line */ 653 nlines, /* number of lines affected */ 654 adprev, /* previous 'a' line1+1 or 'd' line1 */ 655 dafter; /* sum of previous 'd' line1 and previous 'd' nlines */ 656}; 657extern char const * Dbranch; 658extern struct access * AccessList; 659extern struct assoc * Symbols; 660extern struct cbuf Comment; 661extern struct cbuf Ignored; 662extern struct rcslock *Locks; 663extern struct hshentry * Head; 664extern int Expand; 665extern int StrictLocks; 666extern int TotalDeltas; 667extern char const *const expand_names[]; 668extern char const 669 Kaccess[], Kauthor[], Kbranch[], Kcomment[], 670 Kdate[], Kdesc[], Kexpand[], Khead[], Klocks[], Klog[], 671 Knext[], Kstate[], Kstrict[], Ksymbols[], Ktext[]; 672void unexpected_EOF P((void)) exiting; 673int getdiffcmd P((RILE*,int,FILE*,struct diffcmd*)); 674int str2expmode P((char const*)); 675void getadmin P((void)); 676void getdesc P((int)); 677void gettree P((void)); 678void ignorephrases P((char const*)); 679void initdiffcmd P((struct diffcmd*)); 680void putadmin P((void)); 681void putstring P((FILE*,int,struct cbuf,int)); 682void puttree P((struct hshentry const*,FILE*)); 683 684/* rcstime */ 685#define zonelenmax 9 /* maxiumum length of time zone string, e.g. "+12:34:56" */ 686char const *date2str P((char const[datesize],char[datesize + zonelenmax])); 687time_t date2time P((char const[datesize])); 688void str2date P((char const*,char[datesize])); 689void time2date P((time_t,char[datesize])); 690void zone_set P((char const*)); 691 692/* rcsutil */ 693extern int RCSversion; 694FILE *fopenSafer P((char const*,char const*)); 695char *cgetenv P((char const*)); 696char *fstr_save P((char const*)); 697char *str_save P((char const*)); 698char const *getusername P((int)); 699int fdSafer P((int)); 700int getRCSINIT P((int,char**,char***)); 701int run P((int,char const*,...)); 702int runv P((int,char const*,char const**)); 703malloc_type fremember P((malloc_type)); 704malloc_type ftestalloc P((size_t)); 705malloc_type testalloc P((size_t)); 706malloc_type testrealloc P((malloc_type,size_t)); 707#define ftalloc(T) ftnalloc(T,1) 708#define talloc(T) tnalloc(T,1) 709#if RCS_lint 710 extern malloc_type lintalloc; 711# define ftnalloc(T,n) (lintalloc = ftestalloc(sizeof(T)*(n)), (T*)0) 712# define tnalloc(T,n) (lintalloc = testalloc(sizeof(T)*(n)), (T*)0) 713# define trealloc(T,p,n) (lintalloc = testrealloc((malloc_type)0, sizeof(T)*(n)), p) 714# define tfree(p) 715#else 716# define ftnalloc(T,n) ((T*) ftestalloc(sizeof(T)*(n))) 717# define tnalloc(T,n) ((T*) testalloc(sizeof(T)*(n))) 718# define trealloc(T,p,n) ((T*) testrealloc((malloc_type)(p), sizeof(T)*(n))) 719# define tfree(p) free((malloc_type)(p)) 720#endif 721time_t now P((void)); 722void awrite P((char const*,size_t,FILE*)); 723void fastcopy P((RILE*,FILE*)); 724void ffree P((void)); 725void ffree1 P((char const*)); 726void setRCSversion P((char const*)); 727#if has_signal 728 void catchints P((void)); 729 void ignoreints P((void)); 730 void restoreints P((void)); 731#else 732# define catchints() 733# define ignoreints() 734# define restoreints() 735#endif 736#if has_mmap && large_memory 737# if has_NFS && mmap_signal 738 void catchmmapints P((void)); 739 void readAccessFilenameBuffer P((char const*,unsigned char const*)); 740# else 741# define catchmmapints() 742# endif 743#endif 744#if has_getuid 745 uid_t ruid P((void)); 746# define myself(u) ((u) == ruid()) 747#else 748# define myself(u) true 749#endif 750#if has_setuid 751 uid_t euid P((void)); 752 void nosetid P((void)); 753 void seteid P((void)); 754 void setrid P((void)); 755#else 756# define nosetid() 757# define seteid() 758# define setrid() 759#endif 760 761/* version */ 762extern char const RCS_version_string[]; 763