File: [local] / src / usr.bin / cvs / rcs.c (download)
Revision 1.312, Fri Jan 16 06:40:07 2015 UTC (9 years, 4 months ago) by deraadt
Branch: MAIN
CVS Tags: OPENBSD_5_8_BASE, OPENBSD_5_8, OPENBSD_5_7_BASE, OPENBSD_5_7
Changes since 1.311: +5 -3 lines
Replace <sys/param.h> with <limits.h> and other less dirty headers where
possible. Annotate <sys/param.h> lines with their current reasons. Switch
to PATH_MAX, NGROUPS_MAX, HOST_NAME_MAX+1, LOGIN_NAME_MAX, etc. Change
MIN() and MAX() to local definitions of MINIMUM() and MAXIMUM() where
sensible to avoid pulling in the pollution. These are the files confirmed
through binary verification.
ok guenther, millert, doug (helped with the verification protocol)
|
/* $OpenBSD: rcs.c,v 1.312 2015/01/16 06:40:07 deraadt Exp $ */
/*
* Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/stat.h>
#include <ctype.h>
#include <errno.h>
#include <libgen.h>
#include <pwd.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "atomicio.h"
#include "cvs.h"
#include "diff.h"
#include "rcs.h"
#include "rcsparse.h"
#define MINIMUM(a, b) (((a) < (b)) ? (a) : (b))
#define RCS_KWEXP_SIZE 1024
#define ANNOTATE_NEVER 0
#define ANNOTATE_NOW 1
#define ANNOTATE_LATER 2
/* invalid characters in RCS symbol names */
static const char rcs_sym_invch[] = RCS_SYM_INVALCHAR;
/* comment leaders, depending on the file's suffix */
static const struct rcs_comment {
const char *rc_suffix;
const char *rc_cstr;
} rcs_comments[] = {
{ "1", ".\\\" " },
{ "2", ".\\\" " },
{ "3", ".\\\" " },
{ "4", ".\\\" " },
{ "5", ".\\\" " },
{ "6", ".\\\" " },
{ "7", ".\\\" " },
{ "8", ".\\\" " },
{ "9", ".\\\" " },
{ "a", "-- " }, /* Ada */
{ "ada", "-- " },
{ "adb", "-- " },
{ "asm", ";; " }, /* assembler (MS-DOS) */
{ "ads", "-- " }, /* Ada */
{ "bat", ":: " }, /* batch (MS-DOS) */
{ "body", "-- " }, /* Ada */
{ "c", " * " }, /* C */
{ "c++", "// " }, /* C++ */
{ "cc", "// " },
{ "cpp", "// " },
{ "cxx", "// " },
{ "m", "// " }, /* Objective-C */
{ "cl", ";;; " }, /* Common Lisp */
{ "cmd", ":: " }, /* command (OS/2) */
{ "cmf", "c " }, /* CM Fortran */
{ "csh", "# " }, /* shell */
{ "e", "# " }, /* efl */
{ "epsf", "% " }, /* encapsulated postscript */
{ "epsi", "% " }, /* encapsulated postscript */
{ "el", "; " }, /* Emacs Lisp */
{ "f", "c " }, /* Fortran */
{ "for", "c " },
{ "h", " * " }, /* C-header */
{ "hh", "// " }, /* C++ header */
{ "hpp", "// " },
{ "hxx", "// " },
{ "in", "# " }, /* for Makefile.in */
{ "l", " * " }, /* lex */
{ "mac", ";; " }, /* macro (DEC-10, MS-DOS, PDP-11, VMS, etc) */
{ "mak", "# " }, /* makefile, e.g. Visual C++ */
{ "me", ".\\\" " }, /* me-macros t/nroff */
{ "ml", "; " }, /* mocklisp */
{ "mm", ".\\\" " }, /* mm-macros t/nroff */
{ "ms", ".\\\" " }, /* ms-macros t/nroff */
{ "man", ".\\\" " }, /* man-macros t/nroff */
{ "p", " * " }, /* pascal */
{ "pas", " * " },
{ "pl", "# " }, /* Perl (conflict with Prolog) */
{ "pm", "# " }, /* Perl module */
{ "ps", "% " }, /* postscript */
{ "psw", "% " }, /* postscript wrap */
{ "pswm", "% " }, /* postscript wrap */
{ "r", "# " }, /* ratfor */
{ "rc", " * " }, /* Microsoft Windows resource file */
{ "red", "% " }, /* psl/rlisp */
{ "sh", "# " }, /* shell */
{ "sl", "% " }, /* psl */
{ "spec", "-- " }, /* Ada */
{ "tex", "% " }, /* tex */
{ "y", " * " }, /* yacc */
{ "ye", " * " }, /* yacc-efl */
{ "yr", " * " }, /* yacc-ratfor */
};
struct rcs_kw rcs_expkw[] = {
{ "Author", RCS_KW_AUTHOR },
{ "Date", RCS_KW_DATE },
{ "Header", RCS_KW_HEADER },
{ "Id", RCS_KW_ID },
{ "Locker", RCS_KW_LOCKER },
{ "Log", RCS_KW_LOG },
{ "Name", RCS_KW_NAME },
{ "RCSfile", RCS_KW_RCSFILE },
{ "Revision", RCS_KW_REVISION },
{ "Source", RCS_KW_SOURCE },
{ "State", RCS_KW_STATE },
{ "Mdocdate", RCS_KW_MDOCDATE },
};
#define NB_COMTYPES (sizeof(rcs_comments)/sizeof(rcs_comments[0]))
static RCSNUM *rcs_get_revision(const char *, RCSFILE *);
int rcs_patch_lines(struct rcs_lines *, struct rcs_lines *,
struct rcs_line **, struct rcs_delta *);
static void rcs_freedelta(struct rcs_delta *);
static void rcs_strprint(const u_char *, size_t, FILE *);
static void rcs_kwexp_line(char *, struct rcs_delta *, struct rcs_lines *,
struct rcs_line *, int mode);
/*
* Prepare RCSFILE for parsing. The given file descriptor (if any) must be
* read-only and is closed on rcs_close().
*/
RCSFILE *
rcs_open(const char *path, int fd, int flags, ...)
{
int mode;
mode_t fmode;
RCSFILE *rfp;
va_list vap;
struct stat st;
struct rcs_delta *rdp;
struct rcs_lock *lkr;
fmode = S_IRUSR|S_IRGRP|S_IROTH;
flags &= 0xffff; /* ditch any internal flags */
if (flags & RCS_CREATE) {
va_start(vap, flags);
mode = va_arg(vap, int);
va_end(vap);
fmode = (mode_t)mode;
} else {
if (fstat(fd, &st) == -1)
fatal("rcs_open: %s: fstat: %s", path, strerror(errno));
fmode = st.st_mode;
}
fmode &= ~cvs_umask;
rfp = xcalloc(1, sizeof(*rfp));
rfp->rf_path = xstrdup(path);
rfp->rf_flags = flags | RCS_SLOCK | RCS_SYNCED;
rfp->rf_mode = fmode;
if (fd == -1)
rfp->rf_file = NULL;
else if ((rfp->rf_file = fdopen(fd, "r")) == NULL)
fatal("rcs_open: %s: fdopen: %s", path, strerror(errno));
rfp->rf_dead = 0;
TAILQ_INIT(&(rfp->rf_delta));
TAILQ_INIT(&(rfp->rf_access));
TAILQ_INIT(&(rfp->rf_symbols));
TAILQ_INIT(&(rfp->rf_locks));
if (!(rfp->rf_flags & RCS_CREATE)) {
if (rcsparse_init(rfp))
fatal("could not parse admin data");
}
/* fill in rd_locker */
TAILQ_FOREACH(lkr, &(rfp->rf_locks), rl_list) {
if ((rdp = rcs_findrev(rfp, lkr->rl_num)) == NULL) {
rcs_close(rfp);
return (NULL);
}
rdp->rd_locker = xstrdup(lkr->rl_name);
}
return (rfp);
}
/*
* rcs_close()
*
* Close an RCS file handle.
*/
void
rcs_close(RCSFILE *rfp)
{
struct rcs_delta *rdp;
struct rcs_access *rap;
struct rcs_lock *rlp;
struct rcs_sym *rsp;
if ((rfp->rf_flags & RCS_WRITE) && !(rfp->rf_flags & RCS_SYNCED))
rcs_write(rfp);
while (!TAILQ_EMPTY(&(rfp->rf_delta))) {
rdp = TAILQ_FIRST(&(rfp->rf_delta));
TAILQ_REMOVE(&(rfp->rf_delta), rdp, rd_list);
rcs_freedelta(rdp);
}
while (!TAILQ_EMPTY(&(rfp->rf_access))) {
rap = TAILQ_FIRST(&(rfp->rf_access));
TAILQ_REMOVE(&(rfp->rf_access), rap, ra_list);
xfree(rap->ra_name);
xfree(rap);
}
while (!TAILQ_EMPTY(&(rfp->rf_symbols))) {
rsp = TAILQ_FIRST(&(rfp->rf_symbols));
TAILQ_REMOVE(&(rfp->rf_symbols), rsp, rs_list);
rcsnum_free(rsp->rs_num);
xfree(rsp->rs_name);
xfree(rsp);
}
while (!TAILQ_EMPTY(&(rfp->rf_locks))) {
rlp = TAILQ_FIRST(&(rfp->rf_locks));
TAILQ_REMOVE(&(rfp->rf_locks), rlp, rl_list);
rcsnum_free(rlp->rl_num);
xfree(rlp->rl_name);
xfree(rlp);
}
if (rfp->rf_head != NULL)
rcsnum_free(rfp->rf_head);
if (rfp->rf_branch != NULL)
rcsnum_free(rfp->rf_branch);
if (rfp->rf_file != NULL)
fclose(rfp->rf_file);
if (rfp->rf_path != NULL)
xfree(rfp->rf_path);
if (rfp->rf_comment != NULL)
xfree(rfp->rf_comment);
if (rfp->rf_expand != NULL)
xfree(rfp->rf_expand);
if (rfp->rf_desc != NULL)
xfree(rfp->rf_desc);
if (rfp->rf_pdata != NULL)
rcsparse_free(rfp);
xfree(rfp);
}
/*
* rcs_write()
*
* Write the contents of the RCS file handle <rfp> to disk in the file whose
* path is in <rf_path>.
*/
void
rcs_write(RCSFILE *rfp)
{
FILE *fp;
char numbuf[CVS_REV_BUFSZ], *fn, tmpdir[PATH_MAX];
struct rcs_access *ap;
struct rcs_sym *symp;
struct rcs_branch *brp;
struct rcs_delta *rdp;
struct rcs_lock *lkp;
size_t len;
int fd, saved_errno;
fd = -1;
if (rfp->rf_flags & RCS_SYNCED)
return;
if (cvs_noexec == 1)
return;
/* Write operations need the whole file parsed */
if (rcsparse_deltatexts(rfp, NULL))
fatal("rcs_write: rcsparse_deltatexts");
if (strlcpy(tmpdir, rfp->rf_path, sizeof(tmpdir)) >= sizeof(tmpdir))
fatal("rcs_write: truncation");
(void)xasprintf(&fn, "%s/rcs.XXXXXXXXXX", dirname(tmpdir));
if ((fd = mkstemp(fn)) == -1)
fatal("%s", fn);
if ((fp = fdopen(fd, "w")) == NULL) {
saved_errno = errno;
(void)unlink(fn);
fatal("fdopen %s: %s", fn, strerror(saved_errno));
}
worklist_add(fn, &temp_files);
if (rfp->rf_head != NULL)
rcsnum_tostr(rfp->rf_head, numbuf, sizeof(numbuf));
else
numbuf[0] = '\0';
fprintf(fp, "head\t%s;\n", numbuf);
if (rfp->rf_branch != NULL) {
rcsnum_tostr(rfp->rf_branch, numbuf, sizeof(numbuf));
fprintf(fp, "branch\t%s;\n", numbuf);
}
fputs("access", fp);
TAILQ_FOREACH(ap, &(rfp->rf_access), ra_list) {
fprintf(fp, "\n\t%s", ap->ra_name);
}
fputs(";\n", fp);
fprintf(fp, "symbols");
TAILQ_FOREACH(symp, &(rfp->rf_symbols), rs_list) {
if (RCSNUM_ISBRANCH(symp->rs_num))
rcsnum_addmagic(symp->rs_num);
rcsnum_tostr(symp->rs_num, numbuf, sizeof(numbuf));
fprintf(fp, "\n\t%s:%s", symp->rs_name, numbuf);
}
fprintf(fp, ";\n");
fprintf(fp, "locks");
TAILQ_FOREACH(lkp, &(rfp->rf_locks), rl_list) {
rcsnum_tostr(lkp->rl_num, numbuf, sizeof(numbuf));
fprintf(fp, "\n\t%s:%s", lkp->rl_name, numbuf);
}
fprintf(fp, ";");
if (rfp->rf_flags & RCS_SLOCK)
fprintf(fp, " strict;");
fputc('\n', fp);
fputs("comment\t@", fp);
if (rfp->rf_comment != NULL) {
rcs_strprint((const u_char *)rfp->rf_comment,
strlen(rfp->rf_comment), fp);
fputs("@;\n", fp);
} else
fputs("# @;\n", fp);
if (rfp->rf_expand != NULL) {
fputs("expand @", fp);
rcs_strprint((const u_char *)rfp->rf_expand,
strlen(rfp->rf_expand), fp);
fputs("@;\n", fp);
}
fputs("\n\n", fp);
TAILQ_FOREACH(rdp, &(rfp->rf_delta), rd_list) {
fprintf(fp, "%s\n", rcsnum_tostr(rdp->rd_num, numbuf,
sizeof(numbuf)));
fprintf(fp, "date\t%d.%02d.%02d.%02d.%02d.%02d;",
rdp->rd_date.tm_year + 1900, rdp->rd_date.tm_mon + 1,
rdp->rd_date.tm_mday, rdp->rd_date.tm_hour,
rdp->rd_date.tm_min, rdp->rd_date.tm_sec);
fprintf(fp, "\tauthor %s;\tstate %s;\n",
rdp->rd_author, rdp->rd_state);
fputs("branches", fp);
TAILQ_FOREACH(brp, &(rdp->rd_branches), rb_list) {
fprintf(fp, "\n\t%s", rcsnum_tostr(brp->rb_num, numbuf,
sizeof(numbuf)));
}
fputs(";\n", fp);
fprintf(fp, "next\t%s;\n\n", rcsnum_tostr(rdp->rd_next,
numbuf, sizeof(numbuf)));
}
fputs("\ndesc\n@", fp);
if (rfp->rf_desc != NULL && (len = strlen(rfp->rf_desc)) > 0) {
rcs_strprint((const u_char *)rfp->rf_desc, len, fp);
if (rfp->rf_desc[len-1] != '\n')
fputc('\n', fp);
}
fputs("@\n", fp);
/* deltatexts */
TAILQ_FOREACH(rdp, &(rfp->rf_delta), rd_list) {
fprintf(fp, "\n\n%s\n", rcsnum_tostr(rdp->rd_num, numbuf,
sizeof(numbuf)));
fputs("log\n@", fp);
if (rdp->rd_log != NULL) {
len = strlen(rdp->rd_log);
rcs_strprint((const u_char *)rdp->rd_log, len, fp);
if (len == 0 || rdp->rd_log[len-1] != '\n')
fputc('\n', fp);
}
fputs("@\ntext\n@", fp);
if (rdp->rd_text != NULL)
rcs_strprint(rdp->rd_text, rdp->rd_tlen, fp);
fputs("@\n", fp);
}
if (fchmod(fd, rfp->rf_mode) == -1) {
saved_errno = errno;
(void)unlink(fn);
fatal("fchmod %s: %s", fn, strerror(saved_errno));
}
(void)fclose(fp);
if (rename(fn, rfp->rf_path) == -1) {
saved_errno = errno;
(void)unlink(fn);
fatal("rename(%s, %s): %s", fn, rfp->rf_path,
strerror(saved_errno));
}
rfp->rf_flags |= RCS_SYNCED;
if (fn != NULL)
xfree(fn);
}
/*
* rcs_head_get()
*
* Retrieve the revision number of the head revision for the RCS file <file>.
*/
RCSNUM *
rcs_head_get(RCSFILE *file)
{
struct rcs_branch *brp;
struct rcs_delta *rdp;
RCSNUM *rev, *rootrev;
if (file->rf_head == NULL)
return NULL;
rev = rcsnum_alloc();
if (file->rf_branch != NULL) {
/* we have a default branch, use that to calculate the
* real HEAD*/
rootrev = rcsnum_alloc();
rcsnum_cpy(file->rf_branch, rootrev,
file->rf_branch->rn_len - 1);
if ((rdp = rcs_findrev(file, rootrev)) == NULL)
fatal("rcs_head_get: could not find root revision");
/* HEAD should be the last revision on the default branch */
TAILQ_FOREACH(brp, &(rdp->rd_branches), rb_list) {
if (rcsnum_cmp(brp->rb_num, file->rf_branch,
file->rf_branch->rn_len) == 0)
break;
}
rcsnum_free(rootrev);
if (brp == NULL)
fatal("rcs_head_get: could not find first default "
"branch revision");
if ((rdp = rcs_findrev(file, brp->rb_num)) == NULL)
fatal("rcs_head_get: could not find branch revision");
while (rdp->rd_next->rn_len != 0)
if ((rdp = rcs_findrev(file, rdp->rd_next)) == NULL)
fatal("rcs_head_get: could not find "
"next branch revision");
rcsnum_cpy(rdp->rd_num, rev, 0);
} else {
rcsnum_cpy(file->rf_head, rev, 0);
}
return (rev);
}
/*
* rcs_head_set()
*
* Set the revision number of the head revision for the RCS file <file> to
* <rev>, which must reference a valid revision within the file.
*/
int
rcs_head_set(RCSFILE *file, RCSNUM *rev)
{
if (rcs_findrev(file, rev) == NULL)
return (-1);
if (file->rf_head == NULL)
file->rf_head = rcsnum_alloc();
rcsnum_cpy(rev, file->rf_head, 0);
file->rf_flags &= ~RCS_SYNCED;
return (0);
}
/*
* rcs_branch_new()
*
* Create a new branch out of supplied revision for the RCS file <file>.
*/
RCSNUM *
rcs_branch_new(RCSFILE *file, RCSNUM *rev)
{
RCSNUM *brev;
struct rcs_sym *sym;
if ((brev = rcsnum_new_branch(rev)) == NULL)
return (NULL);
for (;;) {
TAILQ_FOREACH(sym, &(file->rf_symbols), rs_list)
if (!rcsnum_cmp(sym->rs_num, brev, 0))
break;
if (sym == NULL)
break;
if (rcsnum_inc(brev) == NULL ||
rcsnum_inc(brev) == NULL) {
rcsnum_free(brev);
return (NULL);
}
}
return (brev);
}
/*
* rcs_branch_get()
*
* Retrieve the default branch number for the RCS file <file>.
* Returns the number on success. If NULL is returned, then there is no
* default branch for this file.
*/
const RCSNUM *
rcs_branch_get(RCSFILE *file)
{
return (file->rf_branch);
}
/*
* rcs_branch_set()
*
* Set the default branch for the RCS file <file> to <bnum>.
* Returns 0 on success, -1 on failure.
*/
int
rcs_branch_set(RCSFILE *file, const RCSNUM *bnum)
{
if (file->rf_branch == NULL)
file->rf_branch = rcsnum_alloc();
rcsnum_cpy(bnum, file->rf_branch, 0);
file->rf_flags &= ~RCS_SYNCED;
return (0);
}
/*
* rcs_access_add()
*
* Add the login name <login> to the access list for the RCS file <file>.
* Returns 0 on success, or -1 on failure.
*/
int
rcs_access_add(RCSFILE *file, const char *login)
{
struct rcs_access *ap;
/* first look for duplication */
TAILQ_FOREACH(ap, &(file->rf_access), ra_list) {
if (strcmp(ap->ra_name, login) == 0)
return (-1);
}
ap = xmalloc(sizeof(*ap));
ap->ra_name = xstrdup(login);
TAILQ_INSERT_TAIL(&(file->rf_access), ap, ra_list);
/* not synced anymore */
file->rf_flags &= ~RCS_SYNCED;
return (0);
}
/*
* rcs_access_remove()
*
* Remove an entry with login name <login> from the access list of the RCS
* file <file>.
* Returns 0 on success, or -1 on failure.
*/
int
rcs_access_remove(RCSFILE *file, const char *login)
{
struct rcs_access *ap;
TAILQ_FOREACH(ap, &(file->rf_access), ra_list)
if (strcmp(ap->ra_name, login) == 0)
break;
if (ap == NULL)
return (-1);
TAILQ_REMOVE(&(file->rf_access), ap, ra_list);
xfree(ap->ra_name);
xfree(ap);
/* not synced anymore */
file->rf_flags &= ~RCS_SYNCED;
return (0);
}
/*
* rcs_sym_add()
*
* Add a symbol to the list of symbols for the RCS file <rfp>. The new symbol
* is named <sym> and is bound to the RCS revision <snum>.
*/
int
rcs_sym_add(RCSFILE *rfp, const char *sym, RCSNUM *snum)
{
struct rcs_sym *symp;
if (!rcs_sym_check(sym))
return (-1);
/* first look for duplication */
TAILQ_FOREACH(symp, &(rfp->rf_symbols), rs_list) {
if (strcmp(symp->rs_name, sym) == 0)
return (1);
}
symp = xmalloc(sizeof(*symp));
symp->rs_name = xstrdup(sym);
symp->rs_num = rcsnum_alloc();
rcsnum_cpy(snum, symp->rs_num, 0);
TAILQ_INSERT_HEAD(&(rfp->rf_symbols), symp, rs_list);
/* not synced anymore */
rfp->rf_flags &= ~RCS_SYNCED;
return (0);
}
/*
* rcs_sym_remove()
*
* Remove the symbol with name <sym> from the symbol list for the RCS file
* <file>. If no such symbol is found, the call fails and returns with an
* error.
* Returns 0 on success, or -1 on failure.
*/
int
rcs_sym_remove(RCSFILE *file, const char *sym)
{
struct rcs_sym *symp;
if (!rcs_sym_check(sym))
return (-1);
TAILQ_FOREACH(symp, &(file->rf_symbols), rs_list)
if (strcmp(symp->rs_name, sym) == 0)
break;
if (symp == NULL)
return (-1);
TAILQ_REMOVE(&(file->rf_symbols), symp, rs_list);
xfree(symp->rs_name);
rcsnum_free(symp->rs_num);
xfree(symp);
/* not synced anymore */
file->rf_flags &= ~RCS_SYNCED;
return (0);
}
/*
* rcs_sym_get()
*
* Find a specific symbol <sym> entry in the tree of the RCS file <file>.
*
* Returns a pointer to the symbol on success, or NULL on failure.
*/
struct rcs_sym *
rcs_sym_get(RCSFILE *file, const char *sym)
{
struct rcs_sym *symp;
TAILQ_FOREACH(symp, &(file->rf_symbols), rs_list)
if (strcmp(symp->rs_name, sym) == 0)
return (symp);
return (NULL);
}
/*
* rcs_sym_getrev()
*
* Retrieve the RCS revision number associated with the symbol <sym> for the
* RCS file <file>. The returned value is a dynamically-allocated copy and
* should be freed by the caller once they are done with it.
* Returns the RCSNUM on success, or NULL on failure.
*/
RCSNUM *
rcs_sym_getrev(RCSFILE *file, const char *sym)
{
RCSNUM *num;
struct rcs_sym *symp;
if (!rcs_sym_check(sym) || file->rf_head == NULL)
return (NULL);
if (!strcmp(sym, RCS_HEAD_BRANCH)) {
num = rcsnum_alloc();
rcsnum_cpy(file->rf_head, num, 0);
return (num);
}
num = NULL;
TAILQ_FOREACH(symp, &(file->rf_symbols), rs_list)
if (strcmp(symp->rs_name, sym) == 0)
break;
if (symp != NULL) {
num = rcsnum_alloc();
rcsnum_cpy(symp->rs_num, num, 0);
}
return (num);
}
/*
* rcs_sym_check()
*
* Check the RCS symbol name <sym> for any unsupported characters.
* Returns 1 if the tag is correct, 0 if it isn't valid.
*/
int
rcs_sym_check(const char *sym)
{
int ret;
const unsigned char *cp;
ret = 1;
cp = sym;
if (!isalpha(*cp++))
return (0);
for (; *cp != '\0'; cp++)
if (!isgraph(*cp) || (strchr(rcs_sym_invch, *cp) != NULL)) {
ret = 0;
break;
}
return (ret);
}
/*
* rcs_lock_getmode()
*
* Retrieve the locking mode of the RCS file <file>.
*/
int
rcs_lock_getmode(RCSFILE *file)
{
return (file->rf_flags & RCS_SLOCK) ? RCS_LOCK_STRICT : RCS_LOCK_LOOSE;
}
/*
* rcs_lock_setmode()
*
* Set the locking mode of the RCS file <file> to <mode>, which must either
* be RCS_LOCK_LOOSE or RCS_LOCK_STRICT.
* Returns the previous mode on success, or -1 on failure.
*/
int
rcs_lock_setmode(RCSFILE *file, int mode)
{
int pmode;
pmode = rcs_lock_getmode(file);
if (mode == RCS_LOCK_STRICT)
file->rf_flags |= RCS_SLOCK;
else if (mode == RCS_LOCK_LOOSE)
file->rf_flags &= ~RCS_SLOCK;
else
fatal("rcs_lock_setmode: invalid mode `%d'", mode);
file->rf_flags &= ~RCS_SYNCED;
return (pmode);
}
/*
* rcs_lock_add()
*
* Add an RCS lock for the user <user> on revision <rev>.
* Returns 0 on success, or -1 on failure.
*/
int
rcs_lock_add(RCSFILE *file, const char *user, RCSNUM *rev)
{
struct rcs_lock *lkp;
/* first look for duplication */
TAILQ_FOREACH(lkp, &(file->rf_locks), rl_list) {
if (strcmp(lkp->rl_name, user) == 0 &&
rcsnum_cmp(rev, lkp->rl_num, 0) == 0)
return (-1);
}
lkp = xmalloc(sizeof(*lkp));
lkp->rl_name = xstrdup(user);
lkp->rl_num = rcsnum_alloc();
rcsnum_cpy(rev, lkp->rl_num, 0);
TAILQ_INSERT_TAIL(&(file->rf_locks), lkp, rl_list);
/* not synced anymore */
file->rf_flags &= ~RCS_SYNCED;
return (0);
}
/*
* rcs_lock_remove()
*
* Remove the RCS lock on revision <rev>.
* Returns 0 on success, or -1 on failure.
*/
int
rcs_lock_remove(RCSFILE *file, const char *user, RCSNUM *rev)
{
struct rcs_lock *lkp;
TAILQ_FOREACH(lkp, &(file->rf_locks), rl_list) {
if (strcmp(lkp->rl_name, user) == 0 &&
rcsnum_cmp(lkp->rl_num, rev, 0) == 0)
break;
}
if (lkp == NULL)
return (-1);
TAILQ_REMOVE(&(file->rf_locks), lkp, rl_list);
rcsnum_free(lkp->rl_num);
xfree(lkp->rl_name);
xfree(lkp);
/* not synced anymore */
file->rf_flags &= ~RCS_SYNCED;
return (0);
}
/*
* rcs_desc_get()
*
* Retrieve the description for the RCS file <file>.
*/
const char *
rcs_desc_get(RCSFILE *file)
{
return (file->rf_desc);
}
/*
* rcs_desc_set()
*
* Set the description for the RCS file <file>.
*/
void
rcs_desc_set(RCSFILE *file, const char *desc)
{
char *tmp;
tmp = xstrdup(desc);
if (file->rf_desc != NULL)
xfree(file->rf_desc);
file->rf_desc = tmp;
file->rf_flags &= ~RCS_SYNCED;
}
/*
* rcs_comment_lookup()
*
* Lookup the assumed comment leader based on a file's suffix.
* Returns a pointer to the string on success, or NULL on failure.
*/
const char *
rcs_comment_lookup(const char *filename)
{
int i;
const char *sp;
if ((sp = strrchr(filename, '.')) == NULL)
return (NULL);
sp++;
for (i = 0; i < (int)NB_COMTYPES; i++)
if (strcmp(rcs_comments[i].rc_suffix, sp) == 0)
return (rcs_comments[i].rc_cstr);
return (NULL);
}
/*
* rcs_comment_get()
*
* Retrieve the comment leader for the RCS file <file>.
*/
const char *
rcs_comment_get(RCSFILE *file)
{
return (file->rf_comment);
}
/*
* rcs_comment_set()
*
* Set the comment leader for the RCS file <file>.
*/
void
rcs_comment_set(RCSFILE *file, const char *comment)
{
char *tmp;
tmp = xstrdup(comment);
if (file->rf_comment != NULL)
xfree(file->rf_comment);
file->rf_comment = tmp;
file->rf_flags &= ~RCS_SYNCED;
}
int
rcs_patch_lines(struct rcs_lines *dlines, struct rcs_lines *plines,
struct rcs_line **alines, struct rcs_delta *rdp)
{
u_char op;
char *ep;
struct rcs_line *lp, *dlp, *ndlp;
int i, lineno, nbln;
u_char tmp;
dlp = TAILQ_FIRST(&(dlines->l_lines));
lp = TAILQ_FIRST(&(plines->l_lines));
/* skip first bogus line */
for (lp = TAILQ_NEXT(lp, l_list); lp != NULL;
lp = TAILQ_NEXT(lp, l_list)) {
if (lp->l_len < 2)
fatal("line too short, RCS patch seems broken");
op = *(lp->l_line);
/* NUL-terminate line buffer for strtol() safety. */
tmp = lp->l_line[lp->l_len - 1];
lp->l_line[lp->l_len - 1] = '\0';
lineno = (int)strtol((char*)(lp->l_line + 1), &ep, 10);
if (lineno - 1 > dlines->l_nblines || lineno < 0) {
fatal("invalid line specification in RCS patch");
}
ep++;
nbln = (int)strtol(ep, &ep, 10);
/* Restore the last byte of the buffer */
lp->l_line[lp->l_len - 1] = tmp;
if (nbln < 0)
fatal("invalid line number specification in RCS patch");
/* find the appropriate line */
for (;;) {
if (dlp == NULL)
break;
if (dlp->l_lineno == lineno)
break;
if (dlp->l_lineno > lineno) {
dlp = TAILQ_PREV(dlp, tqh, l_list);
} else if (dlp->l_lineno < lineno) {
if (((ndlp = TAILQ_NEXT(dlp, l_list)) == NULL) ||
ndlp->l_lineno > lineno)
break;
dlp = ndlp;
}
}
if (dlp == NULL)
fatal("can't find referenced line in RCS patch");
if (op == 'd') {
for (i = 0; (i < nbln) && (dlp != NULL); i++) {
ndlp = TAILQ_NEXT(dlp, l_list);
TAILQ_REMOVE(&(dlines->l_lines), dlp, l_list);
if (alines != NULL && dlp->l_line != NULL) {
dlp->l_delta = rdp;
alines[dlp->l_lineno_orig - 1] =
dlp;
} else
xfree(dlp);
dlp = ndlp;
/* last line is gone - reset dlp */
if (dlp == NULL) {
ndlp = TAILQ_LAST(&(dlines->l_lines),
tqh);
dlp = ndlp;
}
}
} else if (op == 'a') {
for (i = 0; i < nbln; i++) {
ndlp = lp;
lp = TAILQ_NEXT(lp, l_list);
if (lp == NULL)
fatal("truncated RCS patch");
TAILQ_REMOVE(&(plines->l_lines), lp, l_list);
if (alines != NULL) {
if (lp->l_needsfree == 1)
xfree(lp->l_line);
lp->l_line = NULL;
lp->l_needsfree = 0;
}
lp->l_delta = rdp;
TAILQ_INSERT_AFTER(&(dlines->l_lines), dlp,
lp, l_list);
dlp = lp;
/* we don't want lookup to block on those */
lp->l_lineno = lineno;
lp = ndlp;
}
} else
fatal("unknown RCS patch operation `%c'", op);
/* last line of the patch, done */
if (lp->l_lineno == plines->l_nblines)
break;
}
/* once we're done patching, rebuild the line numbers */
lineno = 0;
TAILQ_FOREACH(lp, &(dlines->l_lines), l_list)
lp->l_lineno = lineno++;
dlines->l_nblines = lineno - 1;
return (0);
}
void
rcs_delta_stats(struct rcs_delta *rdp, int *ladded, int *lremoved)
{
struct rcs_lines *plines;
struct rcs_line *lp;
int added, i, nbln, removed;
char op, *ep;
u_char tmp;
added = removed = 0;
plines = cvs_splitlines(rdp->rd_text, rdp->rd_tlen);
lp = TAILQ_FIRST(&(plines->l_lines));
/* skip first bogus line */
for (lp = TAILQ_NEXT(lp, l_list); lp != NULL;
lp = TAILQ_NEXT(lp, l_list)) {
if (lp->l_len < 2)
fatal("line too short, RCS patch seems broken");
op = *(lp->l_line);
/* NUL-terminate line buffer for strtol() safety. */
tmp = lp->l_line[lp->l_len - 1];
lp->l_line[lp->l_len - 1] = '\0';
(void)strtol((lp->l_line + 1), &ep, 10);
ep++;
nbln = (int)strtol(ep, &ep, 10);
/* Restore the last byte of the buffer */
lp->l_line[lp->l_len - 1] = tmp;
if (nbln < 0)
fatal("invalid line number specification in RCS patch");
if (op == 'a') {
added += nbln;
for (i = 0; i < nbln; i++) {
lp = TAILQ_NEXT(lp, l_list);
if (lp == NULL)
fatal("truncated RCS patch");
}
}
else if (op == 'd')
removed += nbln;
else
fatal("unknown RCS patch operation '%c'", op);
}
cvs_freelines(plines);
*ladded = added;
*lremoved = removed;
}
/*
* rcs_rev_add()
*
* Add a revision to the RCS file <rf>. The new revision's number can be
* specified in <rev> (which can also be RCS_HEAD_REV, in which case the
* new revision will have a number equal to the previous head revision plus
* one). The <msg> argument specifies the log message for that revision, and
* <date> specifies the revision's date (a value of -1 is
* equivalent to using the current time).
* If <author> is NULL, set the author for this revision to the current user.
* Returns 0 on success, or -1 on failure.
*/
int
rcs_rev_add(RCSFILE *rf, RCSNUM *rev, const char *msg, time_t date,
const char *author)
{
time_t now;
RCSNUM *root = NULL;
struct passwd *pw;
struct rcs_branch *brp, *obrp;
struct rcs_delta *ordp, *rdp;
if (rev == RCS_HEAD_REV) {
if (rf->rf_flags & RCS_CREATE) {
if ((rev = rcsnum_parse(RCS_HEAD_INIT)) == NULL)
return (-1);
if (rf->rf_head != NULL)
xfree(rf->rf_head);
rf->rf_head = rev;
} else if (rf->rf_head == NULL) {
return (-1);
} else {
rev = rcsnum_inc(rf->rf_head);
}
} else {
if ((rdp = rcs_findrev(rf, rev)) != NULL)
return (-1);
}
rdp = xcalloc(1, sizeof(*rdp));
TAILQ_INIT(&(rdp->rd_branches));
rdp->rd_num = rcsnum_alloc();
rcsnum_cpy(rev, rdp->rd_num, 0);
rdp->rd_next = rcsnum_alloc();
if (!author && !(author = getlogin())) {
if (!(pw = getpwuid(getuid())))
fatal("getpwuid failed");
author = pw->pw_name;
}
rdp->rd_author = xstrdup(author);
rdp->rd_state = xstrdup(RCS_STATE_EXP);
rdp->rd_log = xstrdup(msg);
if (date != (time_t)(-1))
now = date;
else
time(&now);
gmtime_r(&now, &(rdp->rd_date));
if (RCSNUM_ISBRANCHREV(rev))
TAILQ_INSERT_TAIL(&(rf->rf_delta), rdp, rd_list);
else
TAILQ_INSERT_HEAD(&(rf->rf_delta), rdp, rd_list);
rf->rf_ndelta++;
if (!(rf->rf_flags & RCS_CREATE)) {
if (RCSNUM_ISBRANCHREV(rev)) {
if (rev->rn_id[rev->rn_len - 1] == 1) {
/* a new branch */
root = rcsnum_branch_root(rev);
brp = xmalloc(sizeof(*brp));
brp->rb_num = rcsnum_alloc();
rcsnum_cpy(rdp->rd_num, brp->rb_num, 0);
if ((ordp = rcs_findrev(rf, root)) == NULL)
fatal("root node not found");
TAILQ_FOREACH(obrp, &(ordp->rd_branches),
rb_list) {
if (!rcsnum_cmp(obrp->rb_num,
brp->rb_num,
brp->rb_num->rn_len - 1))
break;
}
if (obrp == NULL) {
TAILQ_INSERT_TAIL(&(ordp->rd_branches),
brp, rb_list);
}
} else {
root = rcsnum_alloc();
rcsnum_cpy(rev, root, 0);
rcsnum_dec(root);
if ((ordp = rcs_findrev(rf, root)) == NULL)
fatal("previous revision not found");
rcsnum_cpy(rdp->rd_num, ordp->rd_next, 0);
}
} else {
ordp = TAILQ_NEXT(rdp, rd_list);
rcsnum_cpy(ordp->rd_num, rdp->rd_next, 0);
}
}
if (root != NULL)
rcsnum_free(root);
/* not synced anymore */
rf->rf_flags &= ~RCS_SYNCED;
return (0);
}
/*
* rcs_rev_remove()
*
* Remove the revision whose number is <rev> from the RCS file <rf>.
*/
int
rcs_rev_remove(RCSFILE *rf, RCSNUM *rev)
{
int fd1, fd2;
char *path_tmp1, *path_tmp2;
struct rcs_delta *rdp, *prevrdp, *nextrdp;
BUF *prevbuf, *newdiff, *newdeltatext;
if (rev == RCS_HEAD_REV)
rev = rf->rf_head;
if (rev == NULL)
return (-1);
/* do we actually have that revision? */
if ((rdp = rcs_findrev(rf, rev)) == NULL)
return (-1);
/*
* This is confusing, the previous delta is next in the TAILQ list.
* the next delta is the previous one in the TAILQ list.
*
* When the HEAD revision got specified, nextrdp will be NULL.
* When the first revision got specified, prevrdp will be NULL.
*/
prevrdp = (struct rcs_delta *)TAILQ_NEXT(rdp, rd_list);
nextrdp = (struct rcs_delta *)TAILQ_PREV(rdp, tqh, rd_list);
newdeltatext = NULL;
prevbuf = NULL;
path_tmp1 = path_tmp2 = NULL;
if (prevrdp != NULL && nextrdp != NULL) {
newdiff = buf_alloc(64);
/* calculate new diff */
(void)xasprintf(&path_tmp1, "%s/diff1.XXXXXXXXXX", cvs_tmpdir);
fd1 = rcs_rev_write_stmp(rf, nextrdp->rd_num, path_tmp1, 0);
(void)xasprintf(&path_tmp2, "%s/diff2.XXXXXXXXXX", cvs_tmpdir);
fd2 = rcs_rev_write_stmp(rf, prevrdp->rd_num, path_tmp2, 0);
diff_format = D_RCSDIFF;
if (diffreg(path_tmp1, path_tmp2,
fd1, fd2, newdiff, D_FORCEASCII) == D_ERROR)
fatal("rcs_diffreg failed");
close(fd1);
close(fd2);
newdeltatext = newdiff;
} else if (nextrdp == NULL && prevrdp != NULL) {
newdeltatext = prevbuf;
}
if (newdeltatext != NULL) {
if (rcs_deltatext_set(rf, prevrdp->rd_num, newdeltatext) < 0)
fatal("error setting new deltatext");
}
TAILQ_REMOVE(&(rf->rf_delta), rdp, rd_list);
/* update pointers */
if (prevrdp != NULL && nextrdp != NULL) {
rcsnum_cpy(prevrdp->rd_num, nextrdp->rd_next, 0);
} else if (prevrdp != NULL) {
if (rcs_head_set(rf, prevrdp->rd_num) < 0)
fatal("rcs_head_set failed");
} else if (nextrdp != NULL) {
rcsnum_free(nextrdp->rd_next);
nextrdp->rd_next = rcsnum_alloc();
} else {
rcsnum_free(rf->rf_head);
rf->rf_head = NULL;
}
rf->rf_ndelta--;
rf->rf_flags &= ~RCS_SYNCED;
rcs_freedelta(rdp);
if (newdeltatext != NULL)
xfree(newdeltatext);
if (path_tmp1 != NULL)
xfree(path_tmp1);
if (path_tmp2 != NULL)
xfree(path_tmp2);
return (0);
}
/*
* rcs_findrev()
*
* Find a specific revision's delta entry in the tree of the RCS file <rfp>.
* The revision number is given in <rev>.
*
* Returns a pointer to the delta on success, or NULL on failure.
*/
struct rcs_delta *
rcs_findrev(RCSFILE *rfp, RCSNUM *rev)
{
int isbrev;
struct rcs_delta *rdp;
if (rev == NULL)
return NULL;
isbrev = RCSNUM_ISBRANCHREV(rev);
/*
* We need to do more parsing if the last revision in the linked list
* is greater than the requested revision.
*/
rdp = TAILQ_LAST(&(rfp->rf_delta), rcs_dlist);
if (rdp == NULL ||
(!isbrev && rcsnum_cmp(rdp->rd_num, rev, 0) == -1) ||
((isbrev && rdp->rd_num->rn_len < 4) ||
(isbrev && rcsnum_differ(rev, rdp->rd_num)))) {
if (rcsparse_deltas(rfp, rev))
fatal("error parsing deltas");
}
TAILQ_FOREACH(rdp, &(rfp->rf_delta), rd_list) {
if (rcsnum_differ(rdp->rd_num, rev))
continue;
else
return (rdp);
}
return (NULL);
}
/*
* rcs_kwexp_set()
*
* Set the keyword expansion mode to use on the RCS file <file> to <mode>.
*/
void
rcs_kwexp_set(RCSFILE *file, int mode)
{
int i;
char *tmp, buf[8] = "";
if (RCS_KWEXP_INVAL(mode))
return;
i = 0;
if (mode == RCS_KWEXP_NONE)
buf[0] = 'b';
else if (mode == RCS_KWEXP_OLD)
buf[0] = 'o';
else {
if (mode & RCS_KWEXP_NAME)
buf[i++] = 'k';
if (mode & RCS_KWEXP_VAL)
buf[i++] = 'v';
if (mode & RCS_KWEXP_LKR)
buf[i++] = 'l';
}
tmp = xstrdup(buf);
if (file->rf_expand != NULL)
xfree(file->rf_expand);
file->rf_expand = tmp;
/* not synced anymore */
file->rf_flags &= ~RCS_SYNCED;
}
/*
* rcs_kwexp_get()
*
* Retrieve the keyword expansion mode to be used for the RCS file <file>.
*/
int
rcs_kwexp_get(RCSFILE *file)
{
if (file->rf_expand == NULL)
return (RCS_KWEXP_DEFAULT);
return (rcs_kflag_get(file->rf_expand));
}
/*
* rcs_kflag_get()
*
* Get the keyword expansion mode from a set of character flags given in
* <flags> and return the appropriate flag mask. In case of an error, the
* returned mask will have the RCS_KWEXP_ERR bit set to 1.
*/
int
rcs_kflag_get(const char *flags)
{
int fl;
size_t len;
const char *fp;
if (flags == NULL || !(len = strlen(flags)))
return (RCS_KWEXP_ERR);
fl = 0;
for (fp = flags; *fp != '\0'; fp++) {
if (*fp == 'k')
fl |= RCS_KWEXP_NAME;
else if (*fp == 'v')
fl |= RCS_KWEXP_VAL;
else if (*fp == 'l')
fl |= RCS_KWEXP_LKR;
else if (*fp == 'o') {
if (len != 1)
fl |= RCS_KWEXP_ERR;
fl |= RCS_KWEXP_OLD;
} else if (*fp == 'b') {
if (len != 1)
fl |= RCS_KWEXP_ERR;
fl |= RCS_KWEXP_NONE;
} else /* unknown letter */
fl |= RCS_KWEXP_ERR;
}
return (fl);
}
/*
* rcs_freedelta()
*
* Free the contents of a delta structure.
*/
static void
rcs_freedelta(struct rcs_delta *rdp)
{
struct rcs_branch *rb;
if (rdp->rd_num != NULL)
rcsnum_free(rdp->rd_num);
if (rdp->rd_next != NULL)
rcsnum_free(rdp->rd_next);
if (rdp->rd_author != NULL)
xfree(rdp->rd_author);
if (rdp->rd_locker != NULL)
xfree(rdp->rd_locker);
if (rdp->rd_state != NULL)
xfree(rdp->rd_state);
if (rdp->rd_log != NULL)
xfree(rdp->rd_log);
if (rdp->rd_text != NULL)
xfree(rdp->rd_text);
while ((rb = TAILQ_FIRST(&(rdp->rd_branches))) != NULL) {
TAILQ_REMOVE(&(rdp->rd_branches), rb, rb_list);
rcsnum_free(rb->rb_num);
xfree(rb);
}
xfree(rdp);
}
/*
* rcs_strprint()
*
* Output an RCS string <str> of size <slen> to the stream <stream>. Any
* '@' characters are escaped. Otherwise, the string can contain arbitrary
* binary data.
*/
static void
rcs_strprint(const u_char *str, size_t slen, FILE *stream)
{
const u_char *ap, *ep, *sp;
if (slen == 0)
return;
ep = str + slen - 1;
for (sp = str; sp <= ep;) {
ap = memchr(sp, '@', ep - sp);
if (ap == NULL)
ap = ep;
(void)fwrite(sp, sizeof(u_char), ap - sp + 1, stream);
if (*ap == '@')
putc('@', stream);
sp = ap + 1;
}
}
/*
* rcs_deltatext_set()
*
* Set deltatext for <rev> in RCS file <rfp> to <dtext>
* Returns -1 on error, 0 on success.
*/
int
rcs_deltatext_set(RCSFILE *rfp, RCSNUM *rev, BUF *bp)
{
size_t len;
u_char *dtext;
struct rcs_delta *rdp;
/* Write operations require full parsing */
if (rcsparse_deltatexts(rfp, NULL))
return (-1);
if ((rdp = rcs_findrev(rfp, rev)) == NULL)
return (-1);
if (rdp->rd_text != NULL)
xfree(rdp->rd_text);
len = buf_len(bp);
dtext = buf_release(bp);
bp = NULL;
if (len != 0) {
rdp->rd_text = xmalloc(len);
rdp->rd_tlen = len;
(void)memcpy(rdp->rd_text, dtext, len);
} else {
rdp->rd_text = NULL;
rdp->rd_tlen = 0;
}
if (dtext != NULL)
xfree(dtext);
return (0);
}
/*
* rcs_rev_setlog()
*
* Sets the log message of revision <rev> to <logtext>.
*/
int
rcs_rev_setlog(RCSFILE *rfp, RCSNUM *rev, const char *logtext)
{
struct rcs_delta *rdp;
if ((rdp = rcs_findrev(rfp, rev)) == NULL)
return (-1);
if (rdp->rd_log != NULL)
xfree(rdp->rd_log);
rdp->rd_log = xstrdup(logtext);
rfp->rf_flags &= ~RCS_SYNCED;
return (0);
}
/*
* rcs_rev_getdate()
*
* Get the date corresponding to a given revision.
* Returns the date on success, -1 on failure.
*/
time_t
rcs_rev_getdate(RCSFILE *rfp, RCSNUM *rev)
{
struct rcs_delta *rdp;
if ((rdp = rcs_findrev(rfp, rev)) == NULL)
return (-1);
return (timegm(&rdp->rd_date));
}
/*
* rcs_state_set()
*
* Sets the state of revision <rev> to <state>
* NOTE: default state is 'Exp'. States may not contain spaces.
*
* Returns -1 on failure, 0 on success.
*/
int
rcs_state_set(RCSFILE *rfp, RCSNUM *rev, const char *state)
{
struct rcs_delta *rdp;
if ((rdp = rcs_findrev(rfp, rev)) == NULL)
return (-1);
if (rdp->rd_state != NULL)
xfree(rdp->rd_state);
rdp->rd_state = xstrdup(state);
rfp->rf_flags &= ~RCS_SYNCED;
return (0);
}
/*
* rcs_state_check()
*
* Check if string <state> is valid.
*
* Returns 0 if the string is valid, -1 otherwise.
*/
int
rcs_state_check(const char *state)
{
if (strcmp(state, RCS_STATE_DEAD) && strcmp(state, RCS_STATE_EXP))
return (-1);
return (0);
}
/*
* rcs_state_get()
*
* Get the state for a given revision of a specified RCSFILE.
*
* Returns NULL on failure.
*/
const char *
rcs_state_get(RCSFILE *rfp, RCSNUM *rev)
{
struct rcs_delta *rdp;
if ((rdp = rcs_findrev(rfp, rev)) == NULL)
return (NULL);
return (rdp->rd_state);
}
/* rcs_get_revision() */
static RCSNUM *
rcs_get_revision(const char *revstr, RCSFILE *rfp)
{
RCSNUM *rev, *brev, *frev;
struct rcs_branch *brp;
struct rcs_delta *rdp;
size_t i;
rdp = NULL;
if (!strcmp(revstr, RCS_HEAD_BRANCH)) {
if (rfp->rf_head == NULL)
return (NULL);
frev = rcsnum_alloc();
rcsnum_cpy(rfp->rf_head, frev, 0);
return (frev);
}
/* Possibly we could be passed a version number */
if ((rev = rcsnum_parse(revstr)) != NULL) {
/* Do not return if it is not in RCS file */
if ((rdp = rcs_findrev(rfp, rev)) != NULL)
return (rev);
} else {
/* More likely we will be passed a symbol */
rev = rcs_sym_getrev(rfp, revstr);
}
if (rev == NULL)
return (NULL);
/*
* If it was not a branch, thats ok the symbolic
* name refered to a revision, so return the resolved
* revision for the given name. */
if (!RCSNUM_ISBRANCH(rev)) {
/* Sanity check: The first two elements of any
* revision (be it on a branch or on trunk) cannot
* be greater than HEAD.
*
* XXX: To avoid comparing to uninitialized memory,
* the minimum of both revision lengths is taken
* instead of just 2.
*/
if (rfp->rf_head == NULL || rcsnum_cmp(rev, rfp->rf_head,
MINIMUM(rfp->rf_head->rn_len, rev->rn_len)) < 0) {
rcsnum_free(rev);
return (NULL);
}
return (rev);
}
brev = rcsnum_alloc();
rcsnum_cpy(rev, brev, rev->rn_len - 1);
if ((rdp = rcs_findrev(rfp, brev)) == NULL)
fatal("rcs_get_revision: tag `%s' does not exist", revstr);
rcsnum_free(brev);
TAILQ_FOREACH(brp, &(rdp->rd_branches), rb_list) {
for (i = 0; i < rev->rn_len; i++)
if (brp->rb_num->rn_id[i] != rev->rn_id[i])
break;
if (i != rev->rn_len)
continue;
break;
}
rcsnum_free(rev);
frev = rcsnum_alloc();
if (brp == NULL) {
rcsnum_cpy(rdp->rd_num, frev, 0);
return (frev);
} else {
/* Fetch the delta with the correct branch num */
if ((rdp = rcs_findrev(rfp, brp->rb_num)) == NULL)
fatal("rcs_get_revision: could not fetch branch "
"delta");
rcsnum_cpy(rdp->rd_num, frev, 0);
return (frev);
}
}
/*
* rcs_rev_getlines()
*
* Get the entire contents of revision <frev> from the RCSFILE <rfp> and
* return it as a pointer to a struct rcs_lines.
*/
struct rcs_lines *
rcs_rev_getlines(RCSFILE *rfp, RCSNUM *frev, struct rcs_line ***alines)
{
size_t plen;
int annotate, done, i, nextroot;
RCSNUM *tnum, *bnum;
struct rcs_branch *brp;
struct rcs_delta *hrdp, *prdp, *rdp, *trdp;
u_char *patch;
struct rcs_line *line, *nline;
struct rcs_lines *dlines, *plines;
hrdp = prdp = rdp = trdp = NULL;
if (rfp->rf_head == NULL ||
(hrdp = rcs_findrev(rfp, rfp->rf_head)) == NULL)
fatal("rcs_rev_getlines: no HEAD revision");
tnum = frev;
if (rcsparse_deltatexts(rfp, hrdp->rd_num))
fatal("rcs_rev_getlines: rcsparse_deltatexts");
/* revision on branch, get the branch root */
nextroot = 2;
bnum = rcsnum_alloc();
if (RCSNUM_ISBRANCHREV(tnum))
rcsnum_cpy(tnum, bnum, nextroot);
else
rcsnum_cpy(tnum, bnum, tnum->rn_len);
if (alines != NULL) {
/* start with annotate first at requested revision */
annotate = ANNOTATE_LATER;
*alines = NULL;
} else
annotate = ANNOTATE_NEVER;
dlines = cvs_splitlines(hrdp->rd_text, hrdp->rd_tlen);
done = 0;
rdp = hrdp;
if (!rcsnum_differ(rdp->rd_num, bnum)) {
if (annotate == ANNOTATE_LATER) {
/* found requested revision for annotate */
i = 0;
TAILQ_FOREACH(line, &(dlines->l_lines), l_list) {
line->l_lineno_orig = line->l_lineno;
i++;
}
*alines = xcalloc(i + 1, sizeof(struct rcs_line *));
(*alines)[i] = NULL;
annotate = ANNOTATE_NOW;
/* annotate down to 1.1 from where we are */
rcsnum_free(bnum);
bnum = rcsnum_parse("1.1");
if (!rcsnum_differ(rdp->rd_num, bnum)) {
goto next;
}
} else
goto next;
}
prdp = hrdp;
if ((rdp = rcs_findrev(rfp, hrdp->rd_next)) == NULL)
goto done;
again:
for (;;) {
if (rdp->rd_next->rn_len != 0) {
trdp = rcs_findrev(rfp, rdp->rd_next);
if (trdp == NULL)
fatal("failed to grab next revision");
} else {
/*
* XXX Fail, although the caller does not always do the
* right thing (eg cvs diff when the tree is ahead of
* the repository).
*/
break;
}
if (rdp->rd_tlen == 0) {
if (rcsparse_deltatexts(rfp, rdp->rd_num))
fatal("rcs_rev_getlines: rcsparse_deltatexts");
if (rdp->rd_tlen == 0) {
if (!rcsnum_differ(rdp->rd_num, bnum))
break;
rdp = trdp;
continue;
}
}
plen = rdp->rd_tlen;
patch = rdp->rd_text;
plines = cvs_splitlines(patch, plen);
if (annotate == ANNOTATE_NOW)
rcs_patch_lines(dlines, plines, *alines, prdp);
else
rcs_patch_lines(dlines, plines, NULL, NULL);
cvs_freelines(plines);
if (!rcsnum_differ(rdp->rd_num, bnum)) {
if (annotate != ANNOTATE_LATER)
break;
/* found requested revision for annotate */
i = 0;
TAILQ_FOREACH(line, &(dlines->l_lines), l_list) {
line->l_lineno_orig = line->l_lineno;
i++;
}
*alines = xcalloc(i + 1, sizeof(struct rcs_line *));
(*alines)[i] = NULL;
annotate = ANNOTATE_NOW;
/* annotate down to 1.1 from where we are */
rcsnum_free(bnum);
bnum = rcsnum_parse("1.1");
if (!rcsnum_differ(rdp->rd_num, bnum))
break;
}
prdp = rdp;
rdp = trdp;
}
next:
if (!rcsnum_differ(rdp->rd_num, frev))
done = 1;
if (RCSNUM_ISBRANCHREV(frev) && done != 1) {
nextroot += 2;
rcsnum_cpy(frev, bnum, nextroot);
TAILQ_FOREACH(brp, &(rdp->rd_branches), rb_list) {
for (i = 0; i < nextroot - 1; i++)
if (brp->rb_num->rn_id[i] != bnum->rn_id[i])
break;
if (i == nextroot - 1)
break;
}
if (brp == NULL) {
if (annotate != ANNOTATE_NEVER) {
if (*alines != NULL)
xfree(*alines);
*alines = NULL;
cvs_freelines(dlines);
rcsnum_free(bnum);
return (NULL);
}
fatal("expected branch not found on branch list");
}
if ((rdp = rcs_findrev(rfp, brp->rb_num)) == NULL)
fatal("rcs_rev_getlines: failed to get delta for target rev");
goto again;
}
done:
/* put remaining lines into annotate buffer */
if (annotate == ANNOTATE_NOW) {
for (line = TAILQ_FIRST(&(dlines->l_lines));
line != NULL; line = nline) {
nline = TAILQ_NEXT(line, l_list);
TAILQ_REMOVE(&(dlines->l_lines), line, l_list);
if (line->l_line == NULL) {
xfree(line);
continue;
}
line->l_delta = rdp;
(*alines)[line->l_lineno_orig - 1] = line;
}
cvs_freelines(dlines);
dlines = NULL;
}
if (bnum != tnum)
rcsnum_free(bnum);
return (dlines);
}
void
rcs_annotate_getlines(RCSFILE *rfp, RCSNUM *frev, struct rcs_line ***alines)
{
size_t plen;
int i, nextroot;
RCSNUM *bnum;
struct rcs_branch *brp;
struct rcs_delta *rdp, *trdp;
u_char *patch;
struct rcs_line *line;
struct rcs_lines *dlines, *plines;
rdp = trdp = NULL;
if (!RCSNUM_ISBRANCHREV(frev))
fatal("rcs_annotate_getlines: branch revision expected");
/* revision on branch, get the branch root */
nextroot = 2;
bnum = rcsnum_alloc();
rcsnum_cpy(frev, bnum, nextroot);
/*
* Going from HEAD to 1.1 enables the use of an array, which is
* much faster. Unfortunately this is not possible with branch
* revisions, so copy over our alines (array) into dlines (tailq).
*/
dlines = xcalloc(1, sizeof(*dlines));
TAILQ_INIT(&(dlines->l_lines));
line = xcalloc(1, sizeof(*line));
TAILQ_INSERT_TAIL(&(dlines->l_lines), line, l_list);
for (i = 0; (*alines)[i] != NULL; i++) {
line = (*alines)[i];
line->l_lineno = i + 1;
TAILQ_INSERT_TAIL(&(dlines->l_lines), line, l_list);
}
rdp = rcs_findrev(rfp, bnum);
if (rdp == NULL)
fatal("failed to grab branch root revision");
do {
nextroot += 2;
rcsnum_cpy(frev, bnum, nextroot);
TAILQ_FOREACH(brp, &(rdp->rd_branches), rb_list) {
for (i = 0; i < nextroot - 1; i++)
if (brp->rb_num->rn_id[i] != bnum->rn_id[i])
break;
if (i == nextroot - 1)
break;
}
if (brp == NULL)
fatal("expected branch not found on branch list");
if ((rdp = rcs_findrev(rfp, brp->rb_num)) == NULL)
fatal("failed to get delta for target rev");
for (;;) {
if (rdp->rd_next->rn_len != 0) {
trdp = rcs_findrev(rfp, rdp->rd_next);
if (trdp == NULL)
fatal("failed to grab next revision");
}
if (rdp->rd_tlen == 0) {
if (rcsparse_deltatexts(rfp, rdp->rd_num))
fatal("rcs_annotate_getlines: "
"rcsparse_deltatexts");
if (rdp->rd_tlen == 0) {
if (!rcsnum_differ(rdp->rd_num, bnum))
break;
rdp = trdp;
continue;
}
}
plen = rdp->rd_tlen;
patch = rdp->rd_text;
plines = cvs_splitlines(patch, plen);
rcs_patch_lines(dlines, plines, NULL, rdp);
cvs_freelines(plines);
if (!rcsnum_differ(rdp->rd_num, bnum))
break;
rdp = trdp;
}
} while (rcsnum_differ(rdp->rd_num, frev));
if (bnum != frev)
rcsnum_free(bnum);
/*
* All lines have been parsed, now they must be copied over
* into alines (array) again.
*/
xfree(*alines);
i = 0;
TAILQ_FOREACH(line, &(dlines->l_lines), l_list) {
if (line->l_line != NULL)
i++;
}
*alines = xcalloc(i + 1, sizeof(struct rcs_line *));
(*alines)[i] = NULL;
i = 0;
TAILQ_FOREACH(line, &(dlines->l_lines), l_list) {
if (line->l_line != NULL)
(*alines)[i++] = line;
}
}
/*
* rcs_rev_getbuf()
*
* XXX: This is really really slow and should be avoided if at all possible!
*
* Get the entire contents of revision <rev> from the RCSFILE <rfp> and
* return it as a BUF pointer.
*/
BUF *
rcs_rev_getbuf(RCSFILE *rfp, RCSNUM *rev, int mode)
{
int expmode, expand;
struct rcs_delta *rdp;
struct rcs_lines *lines;
struct rcs_line *lp, *nlp;
BUF *bp;
rdp = NULL;
expmode = RCS_KWEXP_NONE;
expand = 0;
lines = rcs_rev_getlines(rfp, rev, NULL);
bp = buf_alloc(1024 * 16);
if (!(mode & RCS_KWEXP_NONE)) {
expmode = rcs_kwexp_get(rfp);
if (!(expmode & RCS_KWEXP_NONE)) {
if ((rdp = rcs_findrev(rfp, rev)) == NULL)
fatal("could not fetch revision");
expand = 1;
}
}
for (lp = TAILQ_FIRST(&lines->l_lines); lp != NULL;) {
nlp = TAILQ_NEXT(lp, l_list);
if (lp->l_line == NULL) {
lp = nlp;
continue;
}
if (expand)
rcs_kwexp_line(rfp->rf_path, rdp, lines, lp, expmode);
do {
buf_append(bp, lp->l_line, lp->l_len);
} while ((lp = TAILQ_NEXT(lp, l_list)) != nlp);
}
cvs_freelines(lines);
return (bp);
}
/*
* rcs_rev_write_fd()
*
* Write the entire contents of revision <frev> from the rcsfile <rfp> to
* file descriptor <fd>.
*/
void
rcs_rev_write_fd(RCSFILE *rfp, RCSNUM *rev, int _fd, int mode)
{
int fd;
FILE *fp;
size_t ret;
int expmode, expand;
struct rcs_delta *rdp;
struct rcs_lines *lines;
struct rcs_line *lp, *nlp;
extern int print_stdout;
rdp = NULL;
expmode = RCS_KWEXP_NONE;
expand = 0;
lines = rcs_rev_getlines(rfp, rev, NULL);
if (!(mode & RCS_KWEXP_NONE)) {
expmode = rcs_kwexp_get(rfp);
if (!(expmode & RCS_KWEXP_NONE)) {
if ((rdp = rcs_findrev(rfp, rev)) == NULL)
fatal("could not fetch revision");
expand = 1;
}
}
fd = dup(_fd);
if (fd == -1)
fatal("rcs_rev_write_fd: dup: %s", strerror(errno));
if ((fp = fdopen(fd, "w")) == NULL)
fatal("rcs_rev_write_fd: fdopen: %s", strerror(errno));
for (lp = TAILQ_FIRST(&lines->l_lines); lp != NULL;) {
nlp = TAILQ_NEXT(lp, l_list);
if (lp->l_line == NULL) {
lp = nlp;
continue;
}
if (expand)
rcs_kwexp_line(rfp->rf_path, rdp, lines, lp, expmode);
do {
/*
* Solely for the checkout and update -p options.
*/
if (cvs_server_active == 1 &&
(cvs_cmdop == CVS_OP_CHECKOUT ||
cvs_cmdop == CVS_OP_UPDATE) && print_stdout == 1) {
ret = fwrite("M ", 1, 2, fp);
if (ret != 2)
fatal("rcs_rev_write_fd: %s",
strerror(errno));
}
ret = fwrite(lp->l_line, 1, lp->l_len, fp);
if (ret != lp->l_len)
fatal("rcs_rev_write_fd: %s", strerror(errno));
} while ((lp = TAILQ_NEXT(lp, l_list)) != nlp);
}
cvs_freelines(lines);
(void)fclose(fp);
}
/*
* rcs_rev_write_stmp()
*
* Write the contents of the rev <rev> to a temporary file whose path is
* specified using <template> (see mkstemp(3)). NB. This function will modify
* <template>, as per mkstemp.
*/
int
rcs_rev_write_stmp(RCSFILE *rfp, RCSNUM *rev, char *template, int mode)
{
int fd;
if ((fd = mkstemp(template)) == -1)
fatal("mkstemp: `%s': %s", template, strerror(errno));
worklist_add(template, &temp_files);
rcs_rev_write_fd(rfp, rev, fd, mode);
if (lseek(fd, 0, SEEK_SET) < 0)
fatal("rcs_rev_write_stmp: lseek: %s", strerror(errno));
return (fd);
}
static void
rcs_kwexp_line(char *rcsfile, struct rcs_delta *rdp, struct rcs_lines *lines,
struct rcs_line *line, int mode)
{
BUF *tmpbuf;
int kwtype;
u_int j, found;
const u_char *c, *start, *fin, *end;
char *kwstr;
char expbuf[256], buf[256];
size_t clen, kwlen, len, tlen;
kwtype = 0;
kwstr = NULL;
if (mode & RCS_KWEXP_OLD)
return;
len = line->l_len;
if (len == 0)
return;
c = line->l_line;
found = 0;
/* Final character in buffer. */
fin = c + len - 1;
/*
* Keyword formats:
* $Keyword$
* $Keyword: value$
*/
for (; c < fin; c++) {
if (*c != '$')
continue;
/* remember start of this possible keyword */
start = c;
/* first following character has to be alphanumeric */
c++;
if (!isalpha(*c)) {
c = start;
continue;
}
/* Number of characters between c and fin, inclusive. */
clen = fin - c + 1;
/* look for any matching keywords */
found = 0;
for (j = 0; j < RCS_NKWORDS; j++) {
kwlen = strlen(rcs_expkw[j].kw_str);
/*
* kwlen must be less than clen since clen
* includes either a terminating `$' or a `:'.
*/
if (kwlen < clen &&
memcmp(c, rcs_expkw[j].kw_str, kwlen) == 0 &&
(c[kwlen] == '$' || c[kwlen] == ':')) {
found = 1;
kwstr = rcs_expkw[j].kw_str;
kwtype = rcs_expkw[j].kw_type;
c += kwlen;
break;
}
}
if (found == 0 && cvs_tagname != NULL) {
kwlen = strlen(cvs_tagname);
if (kwlen < clen &&
memcmp(c, cvs_tagname, kwlen) == 0 &&
(c[kwlen] == '$' || c[kwlen] == ':')) {
found = 1;
kwstr = cvs_tagname;
kwtype = RCS_KW_ID;
c += kwlen;
}
}
/* unknown keyword, continue looking */
if (found == 0) {
c = start;
continue;
}
/*
* if the next character was ':' we need to look for
* an '$' before the end of the line to be sure it is
* in fact a keyword.
*/
if (*c == ':') {
for (; c <= fin; ++c) {
if (*c == '$' || *c == '\n')
break;
}
if (*c != '$') {
c = start;
continue;
}
}
end = c + 1;
/* start constructing the expansion */
expbuf[0] = '\0';
if (mode & RCS_KWEXP_NAME) {
if (strlcat(expbuf, "$", sizeof(expbuf)) >=
sizeof(expbuf) || strlcat(expbuf, kwstr,
sizeof(expbuf)) >= sizeof(expbuf))
fatal("rcs_kwexp_line: truncated");
if ((mode & RCS_KWEXP_VAL) &&
strlcat(expbuf, ": ", sizeof(expbuf)) >=
sizeof(expbuf))
fatal("rcs_kwexp_line: truncated");
}
/*
* order matters because of RCS_KW_ID and
* RCS_KW_HEADER here
*/
if (mode & RCS_KWEXP_VAL) {
if (kwtype & RCS_KW_RCSFILE) {
if (!(kwtype & RCS_KW_FULLPATH))
(void)strlcat(expbuf, basename(rcsfile),
sizeof(expbuf));
else
(void)strlcat(expbuf, rcsfile,
sizeof(expbuf));
if (strlcat(expbuf, " ", sizeof(expbuf)) >=
sizeof(expbuf))
fatal("rcs_kwexp_line: truncated");
}
if (kwtype & RCS_KW_REVISION) {
rcsnum_tostr(rdp->rd_num, buf, sizeof(buf));
if (strlcat(buf, " ", sizeof(buf)) >=
sizeof(buf) || strlcat(expbuf, buf,
sizeof(expbuf)) >= sizeof(buf))
fatal("rcs_kwexp_line: truncated");
}
if (kwtype & RCS_KW_DATE) {
if (strftime(buf, sizeof(buf),
"%Y/%m/%d %H:%M:%S ",
&rdp->rd_date) == 0)
fatal("rcs_kwexp_line: strftime "
"failure");
if (strlcat(expbuf, buf, sizeof(expbuf)) >=
sizeof(expbuf))
fatal("rcs_kwexp_line: string "
"truncated");
}
if (kwtype & RCS_KW_MDOCDATE) {
/*
* Do not prepend ' ' for a single
* digit, %e would do so and there is
* no better format for strftime().
*/
if (strftime(buf, sizeof(buf),
(rdp->rd_date.tm_mday < 10) ?
"%B%e %Y " : "%B %e %Y ",
&rdp->rd_date) == 0)
fatal("rcs_kwexp_line: strftime "
"failure");
if (strlcat(expbuf, buf, sizeof(expbuf)) >=
sizeof(expbuf))
fatal("rcs_kwexp_line: string "
"truncated");
}
if (kwtype & RCS_KW_AUTHOR) {
if (strlcat(expbuf, rdp->rd_author,
sizeof(expbuf)) >= sizeof(expbuf) ||
strlcat(expbuf, " ", sizeof(expbuf)) >=
sizeof(expbuf))
fatal("rcs_kwexp_line: string "
"truncated");
}
if (kwtype & RCS_KW_STATE) {
if (strlcat(expbuf, rdp->rd_state,
sizeof(expbuf)) >= sizeof(expbuf) ||
strlcat(expbuf, " ", sizeof(expbuf)) >=
sizeof(expbuf))
fatal("rcs_kwexp_line: string "
"truncated");
}
/* order does not matter anymore below */
if (kwtype & RCS_KW_LOG) {
char linebuf[256];
struct rcs_line *cur, *lp;
char *logp, *l_line, *prefix, *q, *sprefix;
size_t i;
/* Log line */
if (!(kwtype & RCS_KW_FULLPATH))
(void)strlcat(expbuf,
basename(rcsfile), sizeof(expbuf));
else
(void)strlcat(expbuf, rcsfile,
sizeof(expbuf));
if (strlcat(expbuf, " ", sizeof(expbuf)) >=
sizeof(expbuf))
fatal("rcs_kwexp_line: string "
"truncated");
cur = line;
/* copy rdp->rd_log for strsep */
logp = xstrdup(rdp->rd_log);
/* copy our prefix for later processing */
prefix = xmalloc(start - line->l_line + 1);
memcpy(prefix, line->l_line,
start - line->l_line);
prefix[start - line->l_line] = '\0';
/* copy also prefix without trailing blanks. */
sprefix = xstrdup(prefix);
for (i = strlen(sprefix); i > 0 &&
sprefix[i - 1] == ' '; i--)
sprefix[i - 1] = '\0';
/* new line: revision + date + author */
linebuf[0] = '\0';
if (strlcat(linebuf, "Revision ",
sizeof(linebuf)) >= sizeof(linebuf))
fatal("rcs_kwexp_line: truncated");
rcsnum_tostr(rdp->rd_num, buf, sizeof(buf));
if (strlcat(linebuf, buf, sizeof(linebuf))
>= sizeof(buf))
fatal("rcs_kwexp_line: truncated");
if (strftime(buf, sizeof(buf),
" %Y/%m/%d %H:%M:%S ",
&rdp->rd_date) == 0)
fatal("rcs_kwexp_line: strftime "
"failure");
if (strlcat(linebuf, buf, sizeof(linebuf))
>= sizeof(linebuf))
fatal("rcs_kwexp_line: string "
"truncated");
if (strlcat(linebuf, rdp->rd_author,
sizeof(linebuf)) >= sizeof(linebuf))
fatal("rcs_kwexp_line: string "
"truncated");
lp = xcalloc(1, sizeof(*lp));
xasprintf(&(lp->l_line), "%s%s\n",
prefix, linebuf);
lp->l_len = strlen(lp->l_line);
TAILQ_INSERT_AFTER(&(lines->l_lines), cur, lp,
l_list);
cur = lp;
/* Log message */
q = logp;
while ((l_line = strsep(&q, "\n")) != NULL &&
q != NULL) {
lp = xcalloc(1, sizeof(*lp));
if (l_line[0] == '\0') {
xasprintf(&(lp->l_line), "%s\n",
sprefix);
} else {
xasprintf(&(lp->l_line),
"%s%s\n", prefix, l_line);
}
lp->l_len = strlen(lp->l_line);
TAILQ_INSERT_AFTER(&(lines->l_lines),
cur, lp, l_list);
cur = lp;
}
xfree(logp);
/*
* This is just another hairy mess, but it must
* be done: All characters behind Log will be
* written in a new line next to log messages.
* But that's not enough, we have to strip all
* trailing whitespaces of our prefix.
*/
lp = xcalloc(1, sizeof(*lp));
lp->l_line = xcalloc(strlen(sprefix) +
line->l_line + line->l_len - end + 1, 1);
strlcpy(lp->l_line, sprefix,
strlen(sprefix) + 1);
memcpy(lp->l_line + strlen(sprefix),
end, line->l_line + line->l_len - end);
lp->l_len = strlen(lp->l_line);
TAILQ_INSERT_AFTER(&(lines->l_lines), cur, lp,
l_list);
cur = lp;
end = line->l_line + line->l_len - 1;
xfree(prefix);
xfree(sprefix);
}
if (kwtype & RCS_KW_SOURCE) {
if (strlcat(expbuf, rcsfile, sizeof(expbuf)) >=
sizeof(expbuf) || strlcat(expbuf, " ",
sizeof(expbuf)) >= sizeof(expbuf))
fatal("rcs_kwexp_line: string "
"truncated");
}
if (kwtype & RCS_KW_NAME)
if (strlcat(expbuf, " ", sizeof(expbuf)) >=
sizeof(expbuf))
fatal("rcs_kwexp_line: string "
"truncated");
if (kwtype & RCS_KW_LOCKER)
if (strlcat(expbuf, " ", sizeof(expbuf)) >=
sizeof(expbuf))
fatal("rcs_kwexp_line: string "
"truncated");
}
/* end the expansion */
if (mode & RCS_KWEXP_NAME)
if (strlcat(expbuf, "$",
sizeof(expbuf)) >= sizeof(expbuf))
fatal("rcs_kwexp_line: truncated");
/* Concatenate everything together. */
tmpbuf = buf_alloc(len + strlen(expbuf));
/* Append everything before keyword. */
buf_append(tmpbuf, line->l_line,
start - line->l_line);
/* Append keyword. */
buf_puts(tmpbuf, expbuf);
/* Point c to end of keyword. */
tlen = buf_len(tmpbuf) - 1;
/* Append everything after keyword. */
buf_append(tmpbuf, end,
line->l_line + line->l_len - end);
c = buf_get(tmpbuf) + tlen;
/* Point fin to end of data. */
fin = buf_get(tmpbuf) + buf_len(tmpbuf) - 1;
/* Recalculate new length. */
len = buf_len(tmpbuf);
/* tmpbuf is now ready, convert to string */
if (line->l_needsfree)
xfree(line->l_line);
line->l_len = len;
line->l_line = buf_release(tmpbuf);
line->l_needsfree = 1;
}
}
/* rcs_translate_tag() */
RCSNUM *
rcs_translate_tag(const char *revstr, RCSFILE *rfp)
{
int follow;
time_t deltatime;
char branch[CVS_REV_BUFSZ];
RCSNUM *brev, *frev, *rev;
struct rcs_delta *rdp, *trdp;
time_t cdate;
brev = frev = NULL;
if (revstr == NULL) {
if (rfp->rf_branch != NULL) {
rcsnum_tostr(rfp->rf_branch, branch, sizeof(branch));
revstr = branch;
} else {
revstr = RCS_HEAD_BRANCH;
}
}
if ((rev = rcs_get_revision(revstr, rfp)) == NULL)
return (NULL);
if ((rdp = rcs_findrev(rfp, rev)) == NULL)
return (NULL);
/* let's see if we must follow a branch */
if (!strcmp(revstr, RCS_HEAD_BRANCH))
follow = 1;
else {
frev = rcs_sym_getrev(rfp, revstr);
if (frev == NULL)
frev = rcsnum_parse(revstr);
brev = rcsnum_alloc();
rcsnum_cpy(rev, brev, rev->rn_len - 1);
if (frev != NULL && RCSNUM_ISBRANCH(frev) &&
!rcsnum_cmp(frev, brev, 0)) {
follow = 1;
} else
follow = 0;
rcsnum_free(brev);
}
if (cvs_specified_date != -1)
cdate = cvs_specified_date;
else
cdate = cvs_directory_date;
if (cdate == -1) {
/* XXX */
if (rev->rn_len < 4 || !follow) {
return (rev);
}
/* Find the latest delta on that branch */
rcsnum_free(rev);
for (;;) {
if (rdp->rd_next->rn_len == 0)
break;
if ((rdp = rcs_findrev(rfp, rdp->rd_next)) == NULL)
fatal("rcs_translate_tag: could not fetch "
"branch delta");
}
rev = rcsnum_alloc();
rcsnum_cpy(rdp->rd_num, rev, 0);
return (rev);
}
if (frev != NULL) {
brev = rcsnum_revtobr(frev);
brev->rn_len = rev->rn_len - 1;
rcsnum_free(frev);
}
rcsnum_free(rev);
do {
deltatime = timegm(&(rdp->rd_date));
if (RCSNUM_ISBRANCHREV(rdp->rd_num)) {
if (deltatime > cdate) {
trdp = TAILQ_PREV(rdp, rcs_dlist, rd_list);
if (trdp == NULL)
trdp = rdp;
if (trdp->rd_num->rn_len != rdp->rd_num->rn_len)
return (NULL);
rev = rcsnum_alloc();
rcsnum_cpy(trdp->rd_num, rev, 0);
return (rev);
}
if (rdp->rd_next->rn_len == 0) {
rev = rcsnum_alloc();
rcsnum_cpy(rdp->rd_num, rev, 0);
return (rev);
}
} else {
if (deltatime < cdate) {
rev = rcsnum_alloc();
rcsnum_cpy(rdp->rd_num, rev, 0);
return (rev);
}
}
if (follow && rdp->rd_next->rn_len != 0) {
if (brev != NULL && !rcsnum_cmp(brev, rdp->rd_num, 0))
break;
trdp = rcs_findrev(rfp, rdp->rd_next);
if (trdp == NULL)
fatal("failed to grab next revision");
rdp = trdp;
} else
follow = 0;
} while (follow);
return (NULL);
}
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