int
copy_file(const FTSENT *entp, int dne)
{
static char *buf = NULL;
static size_t bufsize;
struct stat *fs;
ssize_t wcount;
size_t wresid;
off_t wtotal;
int ch, checkch, from_fd, rcount, rval, to_fd;
char *bufp;
#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
char *p;
#endif
from_fd = to_fd = -1;
if (!lflag && !sflag &&
(from_fd = open(entp->fts_path, O_RDONLY, 0)) == -1) {
warn("%s", entp->fts_path);
return (1);
}
fs = entp->fts_statp;
/*
* 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) {
#define YESNO "(y/n [n]) "
if (nflag) {
if (vflag)
printf("%s not overwritten\n", to.p_path);
rval = 1;
goto done;
} else if (iflag) {
(void)fprintf(stderr, "overwrite %s? %s",
to.p_path, YESNO);
checkch = ch = getchar();
while (ch != '\n' && ch != EOF)
ch = getchar();
if (checkch != 'y' && checkch != 'Y') {
(void)fprintf(stderr, "not overwritten\n");
rval = 1;
goto done;
}
}
if (fflag) {
/*
* Remove existing destination file name create a new
* file.
*/
(void)unlink(to.p_path);
if (!lflag && !sflag) {
to_fd = open(to.p_path,
O_WRONLY | O_TRUNC | O_CREAT,
fs->st_mode & ~(S_ISUID | S_ISGID));
}
} else if (!lflag && !sflag) {
/* Overwrite existing destination file name. */
to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0);
}
} else if (!lflag && !sflag) {
to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
fs->st_mode & ~(S_ISUID | S_ISGID));
}
if (!lflag && !sflag && to_fd == -1) {
warn("%s", to.p_path);
rval = 1;
goto done;
}
rval = 0;
if (!lflag && !sflag) {
/*
* 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.
* Some filesystems, such as smbnetfs, don't support mmap,
* so this is a best-effort attempt.
*/
#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
if (S_ISREG(fs->st_mode) && fs->st_size > 0 &&
fs->st_size <= 8 * 1024 * 1024 &&
(p = mmap(NULL, (size_t)fs->st_size, PROT_READ,
MAP_SHARED, from_fd, (off_t)0)) != MAP_FAILED) {
wtotal = 0;
for (bufp = p, wresid = fs->st_size; ;
bufp += wcount, wresid -= (size_t)wcount) {
wcount = write(to_fd, bufp, wresid);
if (wcount <= 0)
break;
wtotal += wcount;
if (info) {
info = 0;
(void)fprintf(stderr,
"%s -> %s %3d%%\n",
entp->fts_path, to.p_path,
cp_pct(wtotal, fs->st_size));
}
if (wcount >= (ssize_t)wresid)
break;
}
if (wcount != (ssize_t)wresid) {
warn("%s", to.p_path);
rval = 1;
}
/* Some systems don't unmap on close(2). */
if (munmap(p, fs->st_size) < 0) {
warn("%s", entp->fts_path);
rval = 1;
}
} else
#endif
{
if (buf == NULL) {
/*
* Note that buf and bufsize are static. If
* malloc() fails, it will fail at the start
* and not copy only some files.
*/
if (sysconf(_SC_PHYS_PAGES) >
PHYSPAGES_THRESHOLD)
bufsize = MIN(BUFSIZE_MAX, MAXPHYS * 8);
else
bufsize = BUFSIZE_SMALL;
buf = malloc(bufsize);
if (buf == NULL)
err(1, "Not enough memory");
}
wtotal = 0;
while ((rcount = read(from_fd, buf, bufsize)) > 0) {
for (bufp = buf, wresid = rcount; ;
bufp += wcount, wresid -= wcount) {
wcount = write(to_fd, bufp, wresid);
if (wcount <= 0)
break;
wtotal += wcount;
if (info) {
info = 0;
(void)fprintf(stderr,
"%s -> %s %3d%%\n",
entp->fts_path, to.p_path,
cp_pct(wtotal, fs->st_size));
}
if (wcount >= (ssize_t)wresid)
break;
}
if (wcount != (ssize_t)wresid) {
warn("%s", to.p_path);
rval = 1;
break;
}
}
if (rcount < 0) {
warn("%s", entp->fts_path);
rval = 1;
}
}
} else if (lflag) {
if (link(entp->fts_path, to.p_path)) {
warn("%s", to.p_path);
rval = 1;
}
} else if (sflag) {
if (symlink(entp->fts_path, to.p_path)) {
warn("%s", to.p_path);
rval = 1;
}
}
/*
* Don't remove the target even after an error. The target might
* not be a regular file, or its attributes might be important,
* or its contents might be irreplaceable. It would only be safe
* to remove it if we created it and its length is 0.
*/
if (!lflag && !sflag) {
if (pflag && setfile(fs, to_fd))
rval = 1;
if (pflag && preserve_fd_acls(from_fd, to_fd) != 0)
rval = 1;
if (close(to_fd)) {
warn("%s", to.p_path);
rval = 1;
}
}
done:
if (from_fd != -1)
(void)close(from_fd);
return (rval);
}
int
copy_file(const FTSENT *entp, int dne)
{
static char buf[MAXBSIZE];
struct stat *fs;
ssize_t wcount, rcount;
size_t wresid;
off_t wtotal;
int ch, checkch, from_fd = 0, rval, to_fd = 0;
char *bufp;
#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
char *p;
#endif
if ((from_fd = open(entp->fts_path, O_RDONLY, 0)) == -1) {
warn("%s", entp->fts_path);
return (1);
}
fs = entp->fts_statp;
/*
* 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) {
#define YESNO "(y/n [n]) "
if (nflag) {
if (vflag)
printf("%s not overwritten\n", to.p_path);
close(from_fd);
return (0);
} else if (iflag) {
fprintf(stderr, "overwrite %s? %s",
to.p_path, YESNO);
checkch = ch = getchar();
while (ch != '\n' && ch != EOF)
ch = getchar();
if (checkch != 'y' && checkch != 'Y') {
close(from_fd);
fprintf(stderr, "not overwritten\n");
return (1);
}
}
if (fflag) {
/* remove existing destination file name,
* create a new file */
unlink(to.p_path);
if (!lflag)
to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
fs->st_mode & ~(S_ISUID | S_ISGID));
} else {
if (!lflag)
/* overwrite existing destination file name */
to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0);
}
} else {
if (!lflag)
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);
close(from_fd);
return (1);
}
rval = 0;
if (!lflag) {
/*
* 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.
* Some filesystems, such as smbnetfs, don't support mmap,
* so this is a best-effort attempt.
*/
#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
if (S_ISREG(fs->st_mode) && fs->st_size > 0 &&
fs->st_size <= 8 * 1024 * 1024 &&
(p = mmap(NULL, (size_t)fs->st_size, PROT_READ,
MAP_SHARED, from_fd, (off_t)0)) != MAP_FAILED) {
wtotal = 0;
for (bufp = p, wresid = fs->st_size; ;
bufp += wcount, wresid -= (size_t)wcount) {
wcount = write(to_fd, bufp, wresid);
if (wcount <= 0)
break;
wtotal += wcount;
if (info) {
info = 0;
fprintf(stderr,
"%s -> %s %3d%%\n",
entp->fts_path, to.p_path,
cp_pct(wtotal, fs->st_size));
}
if (wcount >= (ssize_t)wresid)
break;
}
if (wcount != (ssize_t)wresid) {
warn("%s", to.p_path);
rval = 1;
}
/* Some systems don't unmap on close(2). */
if (munmap(p, fs->st_size) < 0) {
warn("%s", entp->fts_path);
rval = 1;
}
} else
#endif
{
wtotal = 0;
while ((rcount = read(from_fd, buf, MAXBSIZE)) > 0) {
for (bufp = buf, wresid = rcount; ;
bufp += wcount, wresid -= wcount) {
wcount = write(to_fd, bufp, wresid);
if (wcount <= 0)
break;
wtotal += wcount;
if (info) {
info = 0;
fprintf(stderr,
"%s -> %s %3d%%\n",
entp->fts_path, to.p_path,
cp_pct(wtotal, fs->st_size));
}
if (wcount >= (ssize_t)wresid)
break;
}
if (wcount != (ssize_t)wresid) {
warn("%s", to.p_path);
rval = 1;
break;
}
}
if (rcount < 0) {
warn("%s", entp->fts_path);
rval = 1;
}
}
} else {
if (link(entp->fts_path, to.p_path)) {
warn("%s", to.p_path);
rval = 1;
}
}
/*
* Don't remove the target even after an error. The target might
* not be a regular file, or its attributes might be important,
* or its contents might be irreplaceable. It would only be safe
* to remove it if we created it and its length is 0.
*/
if (!lflag) {
if (pflag && setfile(fs, to_fd))
rval = 1;
if (close(to_fd)) {
warn("%s", to.p_path);
rval = 1;
}
}
close(from_fd);
return (rval);
}
int copy_file(const FTSENT *entp, int dne) {
static char *buf = NULL;
static size_t bufsize;
struct stat *fs;
ssize_t wcount;
size_t wresid;
off_t wtotal;
int ch, checkch, from_fd = 0, rcount, rval, to_fd = 0;
char *bufp;
#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
char *p;
#endif
if ((from_fd = open(entp->fts_path, O_RDONLY, 0)) == -1) {
warn("%s", entp->fts_path);
return (1);
}
fs = entp->fts_statp;
if (!dne) {
#define YESNO "(y/n [n]) "
if (nflag) {
if (vflag)
printf("%s not overwritten\n", to.p_path);
(void)close(from_fd);
return (1);
} else if (iflag) {
(void)fprintf(stderr, "overwrite %s? %s", to.p_path, YESNO);
checkch = ch = getchar();
while (ch != '\n' && ch != EOF)
ch = getchar();
if (checkch != 'y' && checkch != 'Y') {
(void)close(from_fd);
(void)fprintf(stderr, "not overwritten\n");
return (1);
}
}
if (fflag) {
(void)unlink(to.p_path);
if (!lflag)
to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT, fs->st_mode & ~(S_ISUID | S_ISGID));
} else {
if (!lflag)
to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0);
}
} else {
if (!lflag)
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 (!lflag) {
#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
if (S_ISREG(fs->st_mode) && fs->st_size > 0 && fs->st_size <= 8 * 1024 * 1024 &&
(p = mmap(NULL, (size_t)fs->st_size, PROT_READ, MAP_SHARED, from_fd, (off_t)0)) != MAP_FAILED) {
wtotal = 0;
for (bufp = p, wresid = fs->st_size; ; bufp += wcount, wresid -= (size_t)wcount) {
wcount = write(to_fd, bufp, wresid);
if (wcount <= 0)
break;
wtotal += wcount;
if (info) {
info = 0;
(void)fprintf(stderr, "%s -> %s %3d%%\n", entp->fts_path, to.p_path, cp_pct(wtotal, fs->st_size));
}
if (wcount >= (ssize_t)wresid)
break;
}
if (wcount != (ssize_t)wresid) {
warn("%s", to.p_path);
rval = 1;
}
if (munmap(p, fs->st_size) < 0) {
warn("%s", entp->fts_path);
rval = 1;
}
} else
#endif
{
if (buf == NULL) {
if (sysconf(_SC_PHYS_PAGES) > PHYSPAGES_THRESHOLD)
bufsize = MIN(BUFSIZE_MAX, MAXPHYS * 8);
else
bufsize = BUFSIZE_SMALL;
buf = malloc(bufsize);
if (buf == NULL)
err(1, "Not enough memory");
}
wtotal = 0;
while ((rcount = read(from_fd, buf, bufsize)) > 0) {
for (bufp = buf, wresid = rcount; ; bufp += wcount, wresid -= wcount) {
wcount = write(to_fd, bufp, wresid);
if (wcount <= 0)
break;
wtotal += wcount;
if (info) {
info = 0;
(void)fprintf(stderr, "%s -> %s %3d%%\n", entp->fts_path, to.p_path, cp_pct(wtotal, fs->st_size));
}
if (wcount >= (ssize_t)wresid)
break;
}
if (wcount != (ssize_t)wresid) {
warn("%s", to.p_path);
rval = 1;
break;
}
}
if (rcount < 0) {
warn("%s", entp->fts_path);
rval = 1;
}
}
} else {
if (link(entp->fts_path, to.p_path)) {
warn("%s", to.p_path);
rval = 1;
}
}
if (!lflag) {
if (pflag && setfile(fs, to_fd))
rval = 1;
if (pflag && preserve_fd_acls(from_fd, to_fd) != 0)
rval = 1;
if (close(to_fd)) {
warn("%s", to.p_path);
rval = 1;
}
}
(void)close(from_fd);
return (rval);
}
