File: [local] / src / usr.bin / cvs / file.c (download)
Revision 1.89, Fri Jun 17 14:58:23 2005 UTC (18 years, 11 months ago) by joris
Branch: MAIN
Changes since 1.88: +6 -1 lines
when pruning don't try to remove any directories outside
the actual repository.
reported by david@, ok xsa@
|
/* $OpenBSD: file.c,v 1.89 2005/06/17 14:58:23 joris 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/types.h>
#include <sys/queue.h>
#include <sys/stat.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <fnmatch.h>
#include <libgen.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "cvs.h"
#include "file.h"
#include "log.h"
#include "strtab.h"
#define CVS_IGN_STATIC 0x01 /* pattern is static, no need to glob */
#define CVS_CHAR_ISMETA(c) ((c == '*') || (c == '?') || (c == '['))
/* ignore pattern */
struct cvs_ignpat {
char ip_pat[MAXNAMLEN];
int ip_flags;
TAILQ_ENTRY (cvs_ignpat) ip_list;
};
/*
* Standard patterns to ignore.
*/
static const char *cvs_ign_std[] = {
".",
"..",
"*.o",
"*.so",
"*.a",
"*.bak",
"*.orig",
"*.rej",
"*.old",
"*.exe",
"*.depend",
"*.obj",
"*.elc",
"*.ln",
"*.olb",
"CVS",
"core",
"*.core",
".#*",
"*~",
"_$*",
"*$",
#ifdef OLD_SMELLY_CRUFT
"RCSLOG",
"tags",
"TAGS",
"RCS",
"SCCS",
"cvslog.*", /* to ignore CVS_CLIENT_LOG output */
"#*",
",*",
#endif
};
/*
* Entries in the CVS/Entries file with a revision of '0' have only been
* added. Compare against this revision to see if this is the case
*/
static RCSNUM *cvs_addedrev;
TAILQ_HEAD(, cvs_ignpat) cvs_ign_pats;
static int cvs_file_getdir(CVSFILE *, int, char *, int (*)(CVSFILE *, void *), void *);
static int cvs_load_dirinfo (CVSFILE *, int);
static int cvs_file_sort (struct cvs_flist *, u_int);
static int cvs_file_cmp (const void *, const void *);
static int cvs_file_cmpname (const char *, const char *);
static CVSFILE* cvs_file_alloc (const char *, u_int);
static CVSFILE* cvs_file_lget (const char *, int, CVSFILE *, struct cvs_ent *);
/*
* cvs_file_init()
*
*/
int
cvs_file_init(void)
{
int i, l;
size_t len;
char path[MAXPATHLEN], buf[MAXNAMLEN];
FILE *ifp;
struct passwd *pwd;
TAILQ_INIT(&cvs_ign_pats);
if ((cvs_addedrev = rcsnum_parse("0")) == NULL)
return (-1);
/* standard patterns to ignore */
for (i = 0; i < (int)(sizeof(cvs_ign_std)/sizeof(char *)); i++)
cvs_file_ignore(cvs_ign_std[i]);
/* read the cvsignore file in the user's home directory, if any */
pwd = getpwuid(getuid());
if (pwd != NULL) {
l = snprintf(path, sizeof(path), "%s/.cvsignore", pwd->pw_dir);
if (l == -1 || l >= (int)sizeof(path)) {
errno = ENAMETOOLONG;
cvs_log(LP_ERRNO, "%s", path);
return (-1);
}
ifp = fopen(path, "r");
if (ifp == NULL) {
if (errno != ENOENT)
cvs_log(LP_ERRNO,
"failed to open user's cvsignore", path);
} else {
while (fgets(buf, sizeof(buf), ifp) != NULL) {
len = strlen(buf);
if (len == 0)
continue;
if (buf[len - 1] != '\n') {
cvs_log(LP_ERR, "line too long in `%s'",
path);
}
buf[--len] = '\0';
cvs_file_ignore(buf);
}
(void)fclose(ifp);
}
}
return (0);
}
/*
* cvs_file_ignore()
*
* Add the pattern <pat> to the list of patterns for files to ignore.
* Returns 0 on success, or -1 on failure.
*/
int
cvs_file_ignore(const char *pat)
{
char *cp;
struct cvs_ignpat *ip;
ip = (struct cvs_ignpat *)malloc(sizeof(*ip));
if (ip == NULL) {
cvs_log(LP_ERR, "failed to allocate space for ignore pattern");
return (-1);
}
strlcpy(ip->ip_pat, pat, sizeof(ip->ip_pat));
/* check if we will need globbing for that pattern */
ip->ip_flags = CVS_IGN_STATIC;
for (cp = ip->ip_pat; *cp != '\0'; cp++) {
if (CVS_CHAR_ISMETA(*cp)) {
ip->ip_flags &= ~CVS_IGN_STATIC;
break;
}
}
TAILQ_INSERT_TAIL(&cvs_ign_pats, ip, ip_list);
return (0);
}
/*
* cvs_file_chkign()
*
* Returns 1 if the filename <file> is matched by one of the ignore
* patterns, or 0 otherwise.
*/
int
cvs_file_chkign(const char *file)
{
int flags;
struct cvs_ignpat *ip;
flags = FNM_PERIOD;
if (cvs_nocase)
flags |= FNM_CASEFOLD;
TAILQ_FOREACH(ip, &cvs_ign_pats, ip_list) {
if (ip->ip_flags & CVS_IGN_STATIC) {
if (cvs_file_cmpname(file, ip->ip_pat) == 0)
return (1);
} else if (fnmatch(ip->ip_pat, file, flags) == 0)
return (1);
}
return (0);
}
/*
* cvs_file_create()
*
* Create a new file whose path is specified in <path> and of type <type>.
* If the type is DT_DIR, the CVS administrative repository and files will be
* created.
* Returns the created file on success, or NULL on failure.
*/
CVSFILE*
cvs_file_create(CVSFILE *parent, const char *path, u_int type, mode_t mode)
{
int fd, l;
int bail;
char fp[MAXPATHLEN], repo[MAXPATHLEN];
CVSFILE *cfp;
CVSENTRIES *ent;
cfp = cvs_file_alloc(path, type);
if (cfp == NULL)
return (NULL);
bail = l = 0;
cfp->cf_mode = mode;
cfp->cf_parent = parent;
if (type == DT_DIR) {
cfp->cf_root = cvsroot_get(path);
/*
* If we do not have a valid root for this, try looking at
* the parent its root.
*/
if (cfp->cf_root == NULL) {
if (parent != NULL && parent->cf_root != NULL) {
cfp->cf_root =
cvsroot_parse(parent->cf_root->cr_str);
if (cfp->cf_root == NULL)
bail = 1;
} else {
bail = 1;
}
}
/* we tried, too bad */
if (bail) {
cvs_log(LP_ERR, "failed to obtain root info for `%s'",
path);
return (NULL);
}
if (cvs_repo_base != NULL) {
cvs_file_getpath(cfp, fp, sizeof(fp));
l = snprintf(repo, sizeof(repo), "%s/%s", cvs_repo_base,
fp);
} else {
cvs_file_getpath(cfp, repo, sizeof(repo));
l = 0;
}
if (l == -1 || l >= (int)sizeof(repo)) {
errno = ENAMETOOLONG;
cvs_log(LP_ERRNO, "%s", repo);
cvs_file_free(cfp);
return (NULL);
}
cfp->cf_repo = strdup(repo);
if (cfp->cf_repo == NULL) {
cvs_file_free(cfp);
return (NULL);
}
if (((mkdir(path, mode) == -1) && (errno != EEXIST)) ||
(cvs_mkadmin(path, cfp->cf_root->cr_str, cfp->cf_repo) < 0)) {
cvs_file_free(cfp);
return (NULL);
}
ent = cvs_ent_open(path, O_RDWR);
if (ent != NULL) {
cvs_ent_close(ent);
}
} else {
fd = open(path, O_WRONLY|O_CREAT|O_EXCL, mode);
if (fd == -1) {
cvs_file_free(cfp);
return (NULL);
}
(void)close(fd);
}
return (cfp);
}
/*
* cvs_file_copy()
*
* Allocate space to create a copy of the file <orig>. The copy inherits all
* of the original's attributes, but does not inherit its children if the
* original file is a directory. Note that files copied using this mechanism
* are linked to their parent, but the parent has no link to the file. This
* is so cvs_file_getpath() works.
* Returns the copied file on success, or NULL on failure. The returned
* structure should be freed using cvs_file_free().
*/
CVSFILE*
cvs_file_copy(CVSFILE *orig)
{
char path[MAXPATHLEN];
CVSFILE *cfp;
cvs_file_getpath(orig, path, sizeof(path));
cfp = cvs_file_alloc(path, orig->cf_type);
if (cfp == NULL)
return (NULL);
cfp->cf_parent = orig->cf_parent;
cfp->cf_mode = orig->cf_mode;
cfp->cf_cvstat = orig->cf_cvstat;
if (orig->cf_type == DT_REG)
cfp->cf_mtime = orig->cf_mtime;
else if (orig->cf_type == DT_DIR) {
/* XXX copy CVS directory attributes */
}
return (cfp);
}
/*
* cvs_file_get()
*
* Load a cvs_file structure with all the information pertaining to the file
* <path>.
* The <flags> parameter specifies various flags that alter the behaviour of
* the function. The CF_RECURSE flag causes the function to recursively load
* subdirectories when <path> is a directory.
* The CF_SORT flag causes the files to be sorted in alphabetical order upon
* loading. The special case of "." as a path specification generates
* recursion for a single level and is equivalent to calling cvs_file_get() on
* all files of that directory.
* Returns a pointer to the cvs file structure, which must later be freed
* with cvs_file_free().
*/
CVSFILE*
cvs_file_get(const char *path, int flags, int (*cb)(CVSFILE *, void *),
void *arg)
{
char *files[1];
files[0] = path;
return cvs_file_getspec(files, 1, flags, cb, arg);
}
/*
* cvs_file_getspec()
*
* Load a specific set of files whose paths are given in the vector <fspec>,
* whose size is given in <fsn>.
* Returns a pointer to the lowest common subdirectory to all specified
* files.
*/
CVSFILE*
cvs_file_getspec(char **fspec, int fsn, int flags, int (*cb)(CVSFILE *, void *),
void *arg)
{
int i;
int pwd;
char *sp, *np, pcopy[MAXPATHLEN];
CVSFILE *base, *nf;
CVSENTRIES *entfile;
struct cvs_ent *ent;
base = cvs_file_lget(".", 0, NULL, NULL);
if (base == NULL)
return (NULL);
entfile = cvs_ent_open(".", O_RDONLY);
/*
* fill in the repository base (needed to construct repo's in
* cvs_file_create).
*/
if (base->cf_repo != NULL) {
cvs_repo_base = strdup(base->cf_repo);
if (cvs_repo_base == NULL) {
cvs_log(LP_ERR, "failed to duplicate repository base");
cvs_file_free(base);
if (entfile)
cvs_ent_close(entfile);
return (NULL);
}
}
/* XXX - needed for some commands */
if (cb != NULL) {
if (cb(base, arg) != CVS_EX_OK) {
cvs_file_free(base);
if (entfile)
cvs_ent_close(entfile);
return (NULL);
}
}
for (i = 0; i < fsn; i++) {
strlcpy(pcopy, fspec[i], sizeof(pcopy));
sp = pcopy;
pwd = (!strcmp(pcopy, "."));
np = strchr(sp, '/');
if (np != NULL)
*np = '\0';
if (pwd) {
nf = base;
} else {
nf = cvs_file_find(base, pcopy);
if (nf == NULL) {
if (entfile != NULL)
ent = cvs_ent_get(entfile, pcopy);
else
ent = NULL;
nf = cvs_file_lget(pcopy, 0, base, ent);
if (nf == NULL) {
cvs_file_free(base);
if (entfile)
cvs_ent_close(entfile);
return (NULL);
}
if (cvs_file_attach(base, nf) < 0) {
cvs_file_free(base);
if (entfile)
cvs_ent_close(entfile);
return (NULL);
}
}
}
if (nf->cf_type == DT_DIR) {
if (np != NULL)
*np++;
if (cvs_file_getdir(nf, flags, np, cb, arg) < 0) {
cvs_file_free(base);
if (entfile)
cvs_ent_close(entfile);
return (NULL);
}
} else {
if (cb != NULL) {
if (cb(nf, arg) != CVS_EX_OK) {
cvs_file_free(base);
if (entfile)
cvs_ent_close(entfile);
return (NULL);
}
}
}
}
if (entfile)
cvs_ent_close(entfile);
return (base);
}
/*
* cvs_file_find()
*
* Find the pointer to a CVS file entry within the file hierarchy <hier>.
* The file's pathname <path> must be relative to the base of <hier>.
* Returns the entry on success, or NULL on failure.
*/
CVSFILE*
cvs_file_find(CVSFILE *hier, const char *path)
{
char *pp, *sp, pbuf[MAXPATHLEN];
CVSFILE *sf, *cf;
strlcpy(pbuf, path, sizeof(pbuf));
cf = hier;
pp = pbuf;
do {
sp = strchr(pp, '/');
if (sp != NULL)
*(sp++) = '\0';
/* special case */
if (*pp == '.') {
if ((*(pp + 1) == '.') && (*(pp + 2) == '\0')) {
/* request to go back to parent */
if (cf->cf_parent == NULL) {
cvs_log(LP_NOTICE,
"path %s goes back too far", path);
return (NULL);
}
cf = cf->cf_parent;
continue;
} else if (*(pp + 1) == '\0')
continue;
}
SIMPLEQ_FOREACH(sf, &(cf->cf_files), cf_list)
if (cvs_file_cmpname(pp, CVS_FILE_NAME(sf)) == 0)
break;
if (sf == NULL)
return (NULL);
cf = sf;
pp = sp;
} while (sp != NULL);
return (cf);
}
/*
* cvs_file_getpath()
*
* Get the full path of the file <file> and store it in <buf>, which is of
* size <len>. For portability, it is recommended that <buf> always be
* at least MAXPATHLEN bytes long.
* Returns a pointer to the start of the path on success, or NULL on failure.
*/
char*
cvs_file_getpath(CVSFILE *file, char *buf, size_t len)
{
u_int i;
const char *fp, *namevec[CVS_FILE_MAXDEPTH];
CVSFILE *top;
buf[0] = '\0';
i = CVS_FILE_MAXDEPTH;
memset(namevec, 0, sizeof(namevec));
/* find the top node */
for (top = file; (top != NULL) && (i > 0); top = top->cf_parent) {
fp = CVS_FILE_NAME(top);
/* skip self-references */
if ((fp[0] == '.') && (fp[1] == '\0'))
continue;
namevec[--i] = fp;
}
if (i == 0)
return (NULL);
else if (i == CVS_FILE_MAXDEPTH) {
strlcpy(buf, ".", len);
return (buf);
}
while (i < CVS_FILE_MAXDEPTH - 1) {
strlcat(buf, namevec[i++], len);
strlcat(buf, "/", len);
}
strlcat(buf, namevec[i], len);
return (buf);
}
/*
* cvs_file_attach()
*
* Attach the file <file> as one of the children of parent <parent>, which
* has to be a file of type DT_DIR.
* Returns 0 on success, or -1 on failure.
*/
int
cvs_file_attach(CVSFILE *parent, CVSFILE *file)
{
if (parent->cf_type != DT_DIR)
return (-1);
SIMPLEQ_INSERT_TAIL(&(parent->cf_files), file, cf_list);
file->cf_parent = parent;
return (0);
}
/*
* Load directory information
*/
static int
cvs_load_dirinfo(CVSFILE *cf, int flags)
{
char fpath[MAXPATHLEN];
char pbuf[MAXPATHLEN];
struct stat st;
int l;
cvs_file_getpath(cf, fpath, sizeof(fpath));
cf->cf_root = cvsroot_get(fpath);
if (cf->cf_root == NULL)
return (-1);
if (flags & CF_MKADMIN)
cvs_mkadmin(fpath, cf->cf_root->cr_str, NULL);
/* if the CVS administrative directory exists, load the info */
l = snprintf(pbuf, sizeof(pbuf), "%s/" CVS_PATH_CVSDIR, fpath);
if (l == -1 || l >= (int)sizeof(pbuf)) {
errno = ENAMETOOLONG;
cvs_log(LP_ERRNO, "%s", pbuf);
return (-1);
}
if ((stat(pbuf, &st) == 0) && S_ISDIR(st.st_mode)) {
if (cvs_readrepo(fpath, pbuf, sizeof(pbuf)) == 0) {
cf->cf_repo = strdup(pbuf);
if (cf->cf_repo == NULL) {
cvs_log(LP_ERRNO,
"failed to dup repository string");
return (-1);
}
}
}
return (0);
}
/*
* cvs_file_getdir()
*
* Get a cvs directory structure for the directory whose path is <dir>.
* This function should not free the directory information on error, as this
* is performed by cvs_file_free().
*/
static int
cvs_file_getdir(CVSFILE *cf, int flags, char *path, int (*cb)(CVSFILE *, void *), void *arg)
{
int l;
int check_entry;
u_int ndirs, nfiles;
char *cur, *np;
char pbuf[MAXPATHLEN], fpath[MAXPATHLEN];
struct dirent *ent;
CVSFILE *cfp;
struct cvs_ent *cvsent;
struct cvs_flist dirs;
DIR *dirp;
CVSENTRIES *entfile;
check_entry = 1;
ndirs = nfiles = 0;
SIMPLEQ_INIT(&dirs);
cvs_file_getpath(cf, fpath, sizeof(fpath));
entfile = cvs_ent_open(fpath, O_RDONLY);
cf->cf_root = cvsroot_get(fpath);
if (cf->cf_root == NULL)
return (-1);
cur = np = NULL;
if (path != NULL) {
cur = strchr(path, '/');
if (cur != NULL) {
*cur = '\0';
np = cur + 1;
if (np != NULL && *np == '\0')
np = NULL;
}
}
if ((flags & CF_KNOWN) && (cf->cf_cvstat == CVS_FST_UNKNOWN))
return (0);
/* callback for the directory entry */
if (cb != NULL) {
if (cb(cf, arg) != CVS_EX_OK)
return (-1);
}
dirp = opendir(fpath);
if (dirp == NULL) {
cvs_log(LP_ERRNO, "failed to open directory %s", fpath);
return (-1);
}
while ((ent = readdir(dirp)) != NULL) {
if ((flags & CF_IGNORE) && cvs_file_chkign(ent->d_name))
continue;
if ((flags & CF_NOSYMS) && (ent->d_type == DT_LNK))
continue;
if (!(flags & CF_RECURSE) && (ent->d_type == DT_DIR)) {
if (entfile != NULL)
(void)cvs_ent_remove(entfile,
ent->d_name);
continue;
}
if ((ent->d_type != DT_DIR) && (flags & CF_NOFILES))
continue;
if (path != NULL) {
if (strcmp(path, ent->d_name))
continue;
}
l = snprintf(pbuf, sizeof(pbuf), "%s/%s", fpath,
ent->d_name);
if (l == -1 || l >= (int)sizeof(pbuf)) {
errno = ENAMETOOLONG;
cvs_log(LP_ERRNO, "%s", pbuf);
closedir(dirp);
return (-1);
}
cfp = cvs_file_find(cf, ent->d_name);
if (cfp == NULL) {
if (entfile != NULL)
cvsent = cvs_ent_get(entfile, ent->d_name);
else
cvsent = NULL;
cfp = cvs_file_lget(pbuf, flags, cf, cvsent);
if (cfp == NULL) {
closedir(dirp);
return (-1);
}
if (entfile != NULL)
cvs_ent_remove(entfile, cfp->cf_name);
if (cfp->cf_type != DT_DIR) {
SIMPLEQ_INSERT_TAIL(&(cf->cf_files), cfp,
cf_list);
nfiles++;
}
} else {
cfp->cf_flags |= CVS_GDIR_IGNORE;
}
if (cfp->cf_type == DT_DIR) {
ndirs++;
SIMPLEQ_INSERT_TAIL(&dirs, cfp, cf_list);
} else {
/* callback for the file */
if (cb != NULL) {
if (cb(cfp, arg) != CVS_EX_OK) {
closedir(dirp);
return (-1);
}
}
}
if (path != NULL) {
check_entry = 0;
break;
}
}
closedir(dirp);
if (entfile != NULL && check_entry) {
while ((cvsent = cvs_ent_next(entfile)) != NULL) {
if (path != NULL) {
if (strcmp(cvsent->ce_name, path))
continue;
}
l = snprintf(pbuf, sizeof(pbuf), "%s/%s", fpath,
cvsent->ce_name);
if (l == -1 || l >= (int)sizeof(pbuf)) {
errno = ENAMETOOLONG;
cvs_log(LP_ERRNO, "%s", pbuf);
return (-1);
}
cfp = cvs_file_find(cf, cvsent->ce_name);
if (cfp == NULL) {
cfp = cvs_file_lget(pbuf, flags, cf, cvsent);
if (cfp == NULL)
continue;
if (cfp->cf_type != DT_DIR) {
SIMPLEQ_INSERT_TAIL(&(cf->cf_files),
cfp, cf_list);
nfiles++;
}
} else {
cfp->cf_flags |= CVS_GDIR_IGNORE;
}
if (cfp->cf_type == DT_DIR) {
ndirs++;
SIMPLEQ_INSERT_TAIL(&dirs, cfp,
cf_list);
} else {
/* callback for the file */
if (cb != NULL) {
if (cb(cfp, arg) != CVS_EX_OK)
return (-1);
}
}
if (path != NULL)
break;
}
cvs_ent_close(entfile);
}
if (flags & CF_SORT) {
if (nfiles > 0)
cvs_file_sort(&(cf->cf_files), nfiles);
if (ndirs > 0)
cvs_file_sort(&dirs, ndirs);
}
while (!SIMPLEQ_EMPTY(&dirs)) {
cfp = SIMPLEQ_FIRST(&dirs);
SIMPLEQ_REMOVE_HEAD(&dirs, cf_list);
if (!(cfp->cf_flags & CVS_GDIR_IGNORE))
SIMPLEQ_INSERT_TAIL(&(cf->cf_files), cfp, cf_list);
else
cfp->cf_flags &= ~CVS_GDIR_IGNORE;
if (cvs_file_getdir(cfp, flags, np, cb, arg) < 0) {
cvs_log(LP_ERR, "failed to get %s", CVS_FILE_NAME(cfp));
continue;
}
}
return (0);
}
/*
* cvs_file_free()
*
* Free a cvs_file structure and its contents.
*/
void
cvs_file_free(CVSFILE *cf)
{
CVSFILE *child;
if (cf->cf_name != NULL)
cvs_strfree(cf->cf_name);
if (cf->cf_type == DT_DIR) {
if (cf->cf_root != NULL)
cvsroot_free(cf->cf_root);
if (cf->cf_repo != NULL)
free(cf->cf_repo);
while (!SIMPLEQ_EMPTY(&(cf->cf_files))) {
child = SIMPLEQ_FIRST(&(cf->cf_files));
SIMPLEQ_REMOVE_HEAD(&(cf->cf_files), cf_list);
cvs_file_free(child);
}
} else {
if (cf->cf_tag != NULL)
cvs_strfree(cf->cf_tag);
if (cf->cf_opts != NULL)
cvs_strfree(cf->cf_opts);
}
free(cf);
}
/*
* cvs_file_examine()
*
* Examine the contents of the CVS file structure <cf> with the function
* <exam>. The function is called for all subdirectories and files of the
* root file.
*/
int
cvs_file_examine(CVSFILE *cf, int (*exam)(CVSFILE *, void *), void *arg)
{
int ret;
CVSFILE *fp;
if (cf->cf_type == DT_DIR) {
ret = (*exam)(cf, arg);
SIMPLEQ_FOREACH(fp, &(cf->cf_files), cf_list) {
ret = cvs_file_examine(fp, exam, arg);
if (ret != 0)
break;
}
} else
ret = (*exam)(cf, arg);
return (ret);
}
/*
* cvs_file_sort()
*
* Sort a list of cvs file structures according to their filename. The list
* <flp> is modified according to the sorting algorithm. The number of files
* in the list must be given by <nfiles>.
* Returns 0 on success, or -1 on failure.
*/
static int
cvs_file_sort(struct cvs_flist *flp, u_int nfiles)
{
int i;
size_t nb;
CVSFILE *cf, **cfvec;
cfvec = (CVSFILE **)calloc(nfiles, sizeof(CVSFILE *));
if (cfvec == NULL) {
cvs_log(LP_ERRNO, "failed to allocate sorting vector");
return (-1);
}
i = 0;
SIMPLEQ_FOREACH(cf, flp, cf_list) {
if (i == (int)nfiles) {
cvs_log(LP_WARN, "too many files to sort");
/* rebuild the list and abort sorting */
while (--i >= 0)
SIMPLEQ_INSERT_HEAD(flp, cfvec[i], cf_list);
free(cfvec);
return (-1);
}
cfvec[i++] = cf;
/* now unlink it from the list,
* we'll put it back in order later
*/
SIMPLEQ_REMOVE_HEAD(flp, cf_list);
}
/* clear the list just in case */
SIMPLEQ_INIT(flp);
nb = (size_t)i;
heapsort(cfvec, nb, sizeof(cf), cvs_file_cmp);
/* rebuild the list from the bottom up */
for (i = (int)nb - 1; i >= 0; i--)
SIMPLEQ_INSERT_HEAD(flp, cfvec[i], cf_list);
free(cfvec);
return (0);
}
static int
cvs_file_cmp(const void *f1, const void *f2)
{
const CVSFILE *cf1, *cf2;
cf1 = *(CVSFILE * const *)f1;
cf2 = *(CVSFILE * const *)f2;
return cvs_file_cmpname(CVS_FILE_NAME(cf1), CVS_FILE_NAME(cf2));
}
/*
* cvs_file_alloc()
*
* Allocate a CVSFILE structure and initialize its internals.
*/
CVSFILE*
cvs_file_alloc(const char *path, u_int type)
{
CVSFILE *cfp;
cfp = (CVSFILE *)malloc(sizeof(*cfp));
if (cfp == NULL) {
cvs_log(LP_ERRNO, "failed to allocate CVS file data");
return (NULL);
}
memset(cfp, 0, sizeof(*cfp));
cfp->cf_type = type;
cfp->cf_cvstat = CVS_FST_UNKNOWN;
if (type == DT_DIR) {
SIMPLEQ_INIT(&(cfp->cf_files));
}
cfp->cf_name = cvs_strdup(basename(path));
if (cfp->cf_name == NULL) {
cvs_log(LP_ERR, "failed to copy file name");
cvs_file_free(cfp);
return (NULL);
}
return (cfp);
}
/*
* cvs_file_lget()
*
* Get the file and link it with the parent right away.
* Returns a pointer to the created file structure on success, or NULL on
* failure.
*/
static CVSFILE*
cvs_file_lget(const char *path, int flags, CVSFILE *parent, struct cvs_ent *ent)
{
int ret, cwd;
u_int type;
struct stat st;
CVSFILE *cfp;
type = DT_UNKNOWN;
cwd = (strcmp(path, ".") == 0) ? 1 : 0;
ret = stat(path, &st);
if (ret == 0)
type = IFTODT(st.st_mode);
if ((cfp = cvs_file_alloc(path, type)) == NULL)
return (NULL);
cfp->cf_parent = parent;
if ((cfp->cf_type == DT_DIR) && (cfp->cf_parent == NULL))
cfp->cf_flags |= CVS_DIRF_BASE;
if (ret == 0) {
cfp->cf_mode = st.st_mode & ACCESSPERMS;
if (cfp->cf_type == DT_REG)
cfp->cf_mtime = st.st_mtime;
if (ent == NULL)
cfp->cf_cvstat = (cwd == 1) ?
CVS_FST_UPTODATE : CVS_FST_UNKNOWN;
else {
/* always show directories as up-to-date */
if (ent->ce_type == CVS_ENT_DIR)
cfp->cf_cvstat = CVS_FST_UPTODATE;
else if (rcsnum_cmp(ent->ce_rev, cvs_addedrev, 2) == 0)
cfp->cf_cvstat = CVS_FST_ADDED;
else {
/* check last modified time */
if (ent->ce_mtime == (time_t)st.st_mtime)
cfp->cf_cvstat = CVS_FST_UPTODATE;
else
cfp->cf_cvstat = CVS_FST_MODIFIED;
}
}
} else {
if (ent == NULL) {
cvs_log(LP_ERR, "no Entry and no file for `%s'",
CVS_FILE_NAME(cfp));
cvs_file_free(cfp);
return (NULL);
} else {
if (ent->ce_type == CVS_ENT_FILE)
cfp->cf_type = DT_REG;
else if (ent->ce_type == CVS_ENT_DIR)
cfp->cf_type = DT_DIR;
else
cvs_log(LP_WARN, "unknown ce_type %d",
ent->ce_type);
if (ent->ce_status == CVS_ENT_REMOVED)
cfp->cf_cvstat = CVS_FST_REMOVED;
else
cfp->cf_cvstat = CVS_FST_LOST;
}
}
if (ent != NULL) {
/* steal the RCSNUM */
cfp->cf_lrev = ent->ce_rev;
ent->ce_rev = NULL;
if (ent->ce_type == CVS_ENT_FILE) {
if (ent->ce_tag[0] != '\0') {
cfp->cf_tag = cvs_strdup(ent->ce_tag);
if (cfp->cf_tag == NULL) {
cvs_file_free(cfp);
return (NULL);
}
}
if (ent->ce_opts[0] != '\0') {
cfp->cf_opts = cvs_strdup(ent->ce_opts);
if (cfp->cf_opts == NULL) {
cvs_file_free(cfp);
return (NULL);
}
}
}
}
if ((cfp->cf_type == DT_DIR) && (cvs_load_dirinfo(cfp, flags) < 0)) {
cvs_file_free(cfp);
return (NULL);
}
if ((cfp->cf_repo != NULL) && (cfp->cf_type == DT_DIR) &&
!strcmp(cfp->cf_repo, path))
cfp->cf_cvstat = CVS_FST_UPTODATE;
return (cfp);
}
static int
cvs_file_cmpname(const char *name1, const char *name2)
{
return (cvs_nocase == 0) ? (strcmp(name1, name2)) :
(strcasecmp(name1, name2));
}
/*
* remove a directory if it does not contain
* any files other than the CVS/ administrative files.
*/
int
cvs_file_prune(char *path)
{
DIR *dirp;
int l, pwd, empty;
struct dirent *dp;
char fpath[MAXPATHLEN];
CVSENTRIES *entf;
CVSFILE *cfp;
pwd = (!strcmp(path, "."));
if ((dirp = opendir(path)) == NULL) {
cvs_log(LP_ERRNO, "failed to open `%s'", fpath);
return (-1);
}
empty = 0;
entf = cvs_ent_open(path, O_RDWR);
while ((dp = readdir(dirp)) != NULL) {
if (!strcmp(dp->d_name, ".") ||
!strcmp(dp->d_name, "..") ||
!strcmp(dp->d_name, CVS_PATH_CVSDIR))
continue;
empty++;
if (dp->d_type == DT_DIR) {
l = snprintf(fpath, sizeof(fpath), "%s%s%s",
(pwd) ? "" : path, (pwd) ? "" : "/", dp->d_name);
if (l == -1 || l >= (int)sizeof(fpath)) {
errno = ENAMETOOLONG;
cvs_log(LP_ERRNO, "%s", fpath);
continue;
}
cfp = cvs_file_find(cvs_files, fpath);
if (cfp == NULL)
continue;
if (cvs_file_prune(fpath)) {
empty--;
if (entf)
cvs_ent_remove(entf, fpath);
} else {
empty++;
}
}
}
closedir(dirp);
if (entf)
cvs_ent_close(entf);
empty = (empty == 0);
if (empty) {
if (cvs_remove_dir(path) < 0) {
cvs_log(LP_ERR, "failed to prune `%s'", path);
empty = 0;
}
}
return (empty);
}