static void ScandirNCAT(PCStr(path),PCStr(rdir),scanDirCallP func,PCStr(arg))
{ FileStat st;
stat(path,&st);
Scandir(rdir,func,arg);
set_utimes(path,st.st_atime,st.st_mtime);
}
/*
* Function: setfile
*
* Purpose:
* Set the owner/group/permissions for the "to" file to the information
* in the stat structure. If fd is zero, also call set_utimes() to set
* the mod/access times. If fd is non-zero, the caller must do a utimes
* itself after close(fd).
*/
int
setfile(struct stat *fs, int fd)
{
int rval;
#if HAVE_MEMBER_STRUCT_STAT_ST_FLAGS_SYS_STAT_H
int islink;
#endif
rval = 0;
#if HAVE_MEMBER_STRUCT_STAT_ST_FLAGS_SYS_STAT_H
islink = S_ISLNK(fs->st_mode);
#endif
fs->st_mode &= S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO;
/*
* Changing the ownership probably won't succeed, unless we're root
* or POSIX_CHOWN_RESTRICTED is not set. Set uid/gid before setting
* the mode; current BSD behavior is to remove all setuid bits on
* chown. If chown fails, lose setuid/setgid bits.
*/
if (fd ? fchown(fd, fs->st_uid, fs->st_gid) :
lchown(to.p_path, fs->st_uid, fs->st_gid)) {
if (errno != EPERM) {
warn("chown: %s", to.p_path);
rval = 1;
}
fs->st_mode &= ~(S_ISUID | S_ISGID);
}
if (fd ? fchmod(fd, fs->st_mode) : lchmod(to.p_path, fs->st_mode)) {
warn("chmod: %s", to.p_path);
rval = 1;
}
#if HAVE_MEMBER_STRUCT_STAT_ST_FLAGS_SYS_STAT_H
if (!islink && !Nflag) {
unsigned long fflags = fs->st_flags;
/*
* XXX
* NFS doesn't support chflags; ignore errors unless
* there's reason to believe we're losing bits.
* (Note, this still won't be right if the server
* supports flags and we were trying to *remove* flags
* on a file that we copied, i.e., that we didn't create.)
*/
errno = 0;
if ((fd ? fchflags(fd, fflags) :
chflags(to.p_path, fflags)) == -1)
if (errno != EOPNOTSUPP || fs->st_flags != 0) {
warn("chflags: %s", to.p_path);
rval = 1;
}
}
#endif /* HAVE_MEMBER_STRUCT_STAT_ST_FLAGS_SYS_STAT_H */
/* if fd is non-zero, caller must call set_utimes() after close() */
if (fd == 0 && set_utimes(to.p_path, fs))
rval = 1;
return (rval);
}
int File_copymod(PCStr(src),PCStr(dst))
{ FileStat st;
if( stat(src,&st) == 0 ){
if( chmod(dst,st.st_mode) != 0 )
return -1;
if( set_utimes(dst,st.st_atime,st.st_mtime) != 0 )
return -1;
return 0;
}
return -1;
}
int
copy_file(FTSENT *entp, int dne)
{
static char buf[MAXBSIZE];
struct stat to_stat, *fs;
int ch, checkch, from_fd, rcount, rval, to_fd, tolnk, wcount;
char *p;
off_t ptotal = 0;
if ((from_fd = open(entp->fts_path, O_RDONLY, 0)) == -1) {
warn("%s", entp->fts_path);
return (1);
}
to_fd = -1;
fs = entp->fts_statp;
tolnk = ((Rflag && !(Lflag || Hflag)) || Pflag);
/*
* If the file exists and we're interactive, verify with the user.
* If the file DNE, set the mode to be the from file, minus setuid
* bits, modified by the umask; arguably wrong, but it makes copying
* executables work right and it's been that way forever. (The
* other choice is 666 or'ed with the execute bits on the from file
* modified by the umask.)
*/
if (!dne) {
struct stat sb;
int sval;
if (iflag) {
(void)fprintf(stderr, "overwrite %s? ", to.p_path);
checkch = ch = getchar();
while (ch != '\n' && ch != EOF)
ch = getchar();
if (checkch != 'y' && checkch != 'Y') {
(void)close(from_fd);
return (0);
}
}
sval = tolnk ?
lstat(to.p_path, &sb) : stat(to.p_path, &sb);
if (sval == -1) {
warn("stat: %s", to.p_path);
(void)close(from_fd);
return (1);
}
if (!(tolnk && S_ISLNK(sb.st_mode)))
to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0);
} else
to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
fs->st_mode & ~(S_ISUID | S_ISGID));
if (to_fd == -1 && (fflag || tolnk)) {
/*
* attempt to remove existing destination file name and
* create a new file
*/
(void)unlink(to.p_path);
to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
fs->st_mode & ~(S_ISUID | S_ISGID));
}
if (to_fd == -1) {
warn("%s", to.p_path);
(void)close(from_fd);
return (1);
}
rval = 0;
/* if hard linking then simply close the open fds, link and return */
if (lflag) {
(void)close(from_fd);
(void)close(to_fd);
(void)unlink(to.p_path);
if (link(entp->fts_path, to.p_path)) {
warn("%s", to.p_path);
return (1);
}
return (0);
}
/*
* There's no reason to do anything other than close the file
* now if it's empty, so let's not bother.
*/
if (fs->st_size > 0) {
struct finfo fi;
fi.from = entp->fts_path;
fi.to = to.p_path;
fi.size = fs->st_size;
/*
* Mmap and write if less than 8M (the limit is so
* we don't totally trash memory on big files).
* This is really a minor hack, but it wins some CPU back.
*/
bool use_read;
use_read = true;
if (fs->st_size <= MMAP_MAX_SIZE) {
size_t fsize = (size_t)fs->st_size;
p = mmap(NULL, fsize, PROT_READ, MAP_FILE|MAP_SHARED,
from_fd, (off_t)0);
if (p != MAP_FAILED) {
size_t remainder;
use_read = false;
(void) madvise(p, (size_t)fs->st_size,
MADV_SEQUENTIAL);
/*
* Write out the data in small chunks to
* avoid locking the output file for a
* long time if the reading the data from
* the source is slow.
*/
remainder = fsize;
do {
ssize_t chunk;
chunk = (remainder > MMAP_MAX_WRITE) ?
MMAP_MAX_WRITE : remainder;
if (write(to_fd, &p[fsize - remainder],
chunk) != chunk) {
warn("%s", to.p_path);
rval = 1;
break;
}
remainder -= chunk;
ptotal += chunk;
if (pinfo)
progress(&fi, ptotal);
} while (remainder > 0);
if (munmap(p, fsize) < 0) {
warn("%s", entp->fts_path);
rval = 1;
}
}
}
if (use_read) {
while ((rcount = read(from_fd, buf, MAXBSIZE)) > 0) {
wcount = write(to_fd, buf, (size_t)rcount);
if (rcount != wcount || wcount == -1) {
warn("%s", to.p_path);
rval = 1;
break;
}
ptotal += wcount;
if (pinfo)
progress(&fi, ptotal);
}
if (rcount < 0) {
warn("%s", entp->fts_path);
rval = 1;
}
}
}
if (pflag && (fcpxattr(from_fd, to_fd) != 0))
warn("%s: error copying extended attributes", to.p_path);
(void)close(from_fd);
if (rval == 1) {
(void)close(to_fd);
return (1);
}
if (pflag && setfile(fs, to_fd))
rval = 1;
/*
* If the source was setuid or setgid, lose the bits unless the
* copy is owned by the same user and group.
*/
#define RETAINBITS \
(S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO)
if (!pflag && dne
&& fs->st_mode & (S_ISUID | S_ISGID) && fs->st_uid == myuid) {
if (fstat(to_fd, &to_stat)) {
warn("%s", to.p_path);
rval = 1;
} else if (fs->st_gid == to_stat.st_gid &&
fchmod(to_fd, fs->st_mode & RETAINBITS & ~myumask)) {
warn("%s", to.p_path);
rval = 1;
}
}
if (close(to_fd)) {
warn("%s", to.p_path);
rval = 1;
}
/* set the mod/access times now after close of the fd */
if (pflag && set_utimes(to.p_path, fs)) {
rval = 1;
}
return (rval);
}
int
copy_file(FTSENT *entp, int dne)
{
static unsigned char buf[MAXBSIZE];
struct stat to_stat, *fs;
int ch, checkch, rv, rcount, rval, tolnk, wcount, fdin, fdout;
off_t off;
fs = entp->fts_statp;
tolnk = ((Rflag && !(Lflag || Hflag)) || Pflag);
/*
* If the file exists and we're interactive, verify with the user.
* If the file DNE, set the mode to be the from file, minus setuid
* bits, modified by the umask; arguably wrong, but it makes copying
* executables work right and it's been that way forever. (The
* other choice is 666 or'ed with the execute bits on the from file
* modified by the umask.)
*/
if (!dne) {
if (iflag) {
(void)fprintf(stderr, "overwrite %s? ", to.p_path);
checkch = ch = getchar();
while (ch != '\n' && ch != EOF)
ch = getchar();
if (checkch != 'y' && checkch != 'Y')
return (0);
}
rump_sys_unlink(to.p_path);
}
rv = rump_sys_open(to.p_path, fs->st_mode & ~(S_ISUID | S_ISGID));
if (rv == -1 && (fflag || tolnk)) {
/*
* attempt to remove existing destination file name and
* create a new file
*/
rump_sys_unlink(to.p_path);
rv = rump_sys_open(to.p_path,
fs->st_mode & ~(S_ISUID | S_ISGID));
if (rv == -1) {
warn("%s", to.p_path);
return (1);
}
}
fdout = rv;
fdin = rump_sys_open(entp->fts_path, O_RDONLY);
rval = 0;
/*
* There's no reason to do anything other than close the file
* now if it's empty, so let's not bother.
*/
off = 0;
if (fs->st_size > 0) {
while ((rcount = rump_sys_read(fdin, buf, MAXBSIZE)) > 0) {
wcount = rump_sys_write(fdout, buf, (size_t)rcount);
if (rcount != wcount || wcount == -1) {
warn("%s", to.p_path);
rval = 1;
break;
}
off += rcount;
}
if (rcount < 0) {
warn("%s", entp->fts_path);
rval = 1;
}
}
if (rval == 1)
return (1);
if (pflag && setfile(fs, 0))
rval = 1;
/*
* If the source was setuid or setgid, lose the bits unless the
* copy is owned by the same user and group.
*/
#define RETAINBITS \
(S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO)
if (!pflag && dne
&& fs->st_mode & (S_ISUID | S_ISGID) && fs->st_uid == myuid) {
if (rump_sys_stat(to.p_path, &to_stat)) {
warn("%s", to.p_path);
rval = 1;
} else if (fs->st_gid == to_stat.st_gid &&
rump_sys_chmod(to.p_path,
fs->st_mode & RETAINBITS & ~myumask)) {
warn("%s", to.p_path);
rval = 1;
}
}
/* set the mod/access times now after close of the fd */
if (pflag && set_utimes(to.p_path, fs)) {
rval = 1;
}
return (rval);
}
/*
* Function: setfile
*
* Purpose:
* Set the owner/group/permissions for the "to" file to the information
* in the stat structure. If fd is zero, also call set_utimes() to set
* the mod/access times. If fd is non-zero, the caller must do a utimes
* itself after close(fd).
*/
int
setfile(struct stat *fs, int fd)
{
int rval = 0;
#ifdef BSD
int islink = S_ISLNK(fs->st_mode);
#endif
fs->st_mode &= S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO;
/*
* Changing the ownership probably won't succeed, unless we're root
* or POSIX_CHOWN_RESTRICTED is not set. Set uid/gid before setting
* the mode; current BSD behavior is to remove all setuid bits on
* chown. If chown fails, lose setuid/setgid bits.
*/
if (fd ? fchown(fd, fs->st_uid, fs->st_gid) :
lchown(to.p_path, fs->st_uid, fs->st_gid)) {
if (errno != EPERM) {
warn("chown: %s", to.p_path);
rval = 1;
}
fs->st_mode &= ~(S_ISUID | S_ISGID);
}
#ifndef BSD
if (fd ? fchmod(fd, fs->st_mode) : chmod(to.p_path, fs->st_mode)) {
#else
if (fd ? fchmod(fd, fs->st_mode) : lchmod(to.p_path, fs->st_mode)) {
#endif
warn("chmod: %s", to.p_path);
rval = 1;
}
#ifdef BSD
if (!islink && !Nflag) {
unsigned long fflags = fs->st_flags;
/*
* XXX
* NFS doesn't support chflags; ignore errors unless
* there's reason to believe we're losing bits.
* (Note, this still won't be right if the server
* supports flags and we were trying to *remove* flags
* on a file that we copied, i.e., that we didn't create.)
*/
errno = 0;
if ((fd ? fchflags(fd, fflags) :
chflags(to.p_path, fflags)) == -1)
if (errno != EOPNOTSUPP || fs->st_flags != 0) {
warn("chflags: %s", to.p_path);
rval = 1;
}
}
#endif
/* if fd is non-zero, caller must call set_utimes() after close() */
if (fd == 0 && set_utimes(to.p_path, fs))
rval = 1;
return (rval);
}
void
cp_usage(void)
{
(void)fprintf(stderr,
"usage: cp [-R [-H | -L | -P]] [-f | -i] [-alNpv] src target\n"
" cp [-R [-H | -L | -P]] [-f | -i] [-alNpv] src1 ... srcN directory\n");
exit(1);
/* NOTREACHED */
}
