#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT(
"@(#) Copyright (c) 1988, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n");
#endif
#ifndef lint
#if 0
static char sccsid[] = "@(#)cp.c 8.5 (Berkeley) 4/29/95";
#else
__RCSID("$NetBSD: cp.c,v 1.24 1998/08/19 01:29:11 thorpej Exp $");
#endif
#endif
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <sys/time.h>
#include <dirent.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <fts.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "extern.h"
#define STRIP_TRAILING_SLASH(p) { \
while ((p).p_end > (p).p_path + 1 && (p).p_end[-1] == '/') \
*--(p).p_end = 0; \
}
PATH_T to = { to.p_path, "" };
uid_t myuid;
int Rflag, iflag, pflag, rflag, fflag;
mode_t myumask;
enum op { FILE_TO_FILE, FILE_TO_DIR, DIR_TO_DNE };
int main __P((int, char *[]));
int copy __P((char *[], enum op, int));
int mastercmp __P((const FTSENT **, const FTSENT **));
int
main(argc, argv)
int argc;
char *argv[];
{
struct stat to_stat, tmp_stat;
enum op type;
int Hflag, Lflag, Pflag, ch, fts_options, r;
char *target;
Hflag = Lflag = Pflag = Rflag = 0;
while ((ch = getopt(argc, argv, "HLPRfipr")) != -1)
switch (ch) {
case 'H':
Hflag = 1;
Lflag = Pflag = 0;
break;
case 'L':
Lflag = 1;
Hflag = Pflag = 0;
break;
case 'P':
Pflag = 1;
Hflag = Lflag = 0;
break;
case 'R':
Rflag = 1;
break;
case 'f':
fflag = 1;
iflag = 0;
break;
case 'i':
iflag = isatty(fileno(stdin));
fflag = 0;
break;
case 'p':
pflag = 1;
break;
case 'r':
rflag = 1;
break;
case '?':
default:
usage();
break;
}
argc -= optind;
argv += optind;
if (argc < 2)
usage();
fts_options = FTS_NOCHDIR | FTS_PHYSICAL;
if (rflag) {
if (Rflag)
errx(1,
"the -R and -r options may not be specified together.");
if (Hflag || Lflag || Pflag)
errx(1,
"the -H, -L, and -P options may not be specified with the -r option.");
fts_options &= ~FTS_PHYSICAL;
fts_options |= FTS_LOGICAL;
}
if (Rflag) {
if (Hflag)
fts_options |= FTS_COMFOLLOW;
if (Lflag) {
fts_options &= ~FTS_PHYSICAL;
fts_options |= FTS_LOGICAL;
}
} else {
fts_options &= ~FTS_PHYSICAL;
fts_options |= FTS_LOGICAL;
}
myuid = getuid();
myumask = umask(0);
(void)umask(myumask);
target = argv[--argc];
if (strlen(target) > MAXPATHLEN)
errx(1, "%s: name too long", target);
(void)strcpy(to.p_path, target);
to.p_end = to.p_path + strlen(to.p_path);
if (to.p_path == to.p_end) {
*to.p_end++ = '.';
*to.p_end = 0;
}
STRIP_TRAILING_SLASH(to);
to.target_end = to.p_end;
argv[argc] = NULL;
r = stat(to.p_path, &to_stat);
if (r == -1 && errno != ENOENT)
err(1, "%s", to.p_path);
if (r == -1 || !S_ISDIR(to_stat.st_mode)) {
if (argc > 1) {
usage();
exit(1);
}
if (r == -1) {
if (rflag || (Rflag && (Lflag || Hflag)))
r = stat(*argv, &tmp_stat);
else
r = lstat(*argv, &tmp_stat);
if (r == -1)
err(1, "%s", *argv);
if (S_ISDIR(tmp_stat.st_mode) && (Rflag || rflag))
type = DIR_TO_DNE;
else
type = FILE_TO_FILE;
} else
type = FILE_TO_FILE;
} else {
type = FILE_TO_DIR;
}
exit (copy(argv, type, fts_options));
}
int
copy(argv, type, fts_options)
char *argv[];
enum op type;
int fts_options;
{
struct stat to_stat;
FTS *ftsp;
FTSENT *curr;
int base, dne, nlen, rval;
char *p, *tmp;
base = 0;
if ((ftsp = fts_open(argv, fts_options, mastercmp)) == NULL)
err(1, argv[0]);
for (rval = 0; (curr = fts_read(ftsp)) != NULL;) {
switch (curr->fts_info) {
case FTS_NS:
case FTS_ERR:
warnx("%s: %s",
curr->fts_path, strerror(curr->fts_errno));
rval = 1;
continue;
case FTS_DC:
warnx("%s: directory causes a cycle", curr->fts_path);
rval = 1;
continue;
}
if (type != FILE_TO_FILE) {
if ((curr->fts_namelen +
to.target_end - to.p_path + 1) > MAXPATHLEN) {
warnx("%s/%s: name too long (not copied)",
to.p_path, curr->fts_name);
rval = 1;
continue;
}
if (curr->fts_level == FTS_ROOTLEVEL) {
if (type != DIR_TO_DNE) {
p = strrchr(curr->fts_path, '/');
base = (p == NULL) ? 0 :
(int)(p - curr->fts_path + 1);
if (!strcmp(&curr->fts_path[base],
".."))
base += 1;
} else
base = curr->fts_pathlen;
}
p = &curr->fts_path[base];
nlen = curr->fts_pathlen - base;
tmp = to.target_end;
if (*p != '/' && *(tmp - 1) != '/')
*tmp++ = '/';
*tmp = 0;
(void)strncat(tmp, p, nlen);
to.p_end = tmp + nlen;
*to.p_end = 0;
STRIP_TRAILING_SLASH(to);
}
if (stat(to.p_path, &to_stat) == -1)
dne = 1;
else {
if (to_stat.st_dev == curr->fts_statp->st_dev &&
to_stat.st_ino == curr->fts_statp->st_ino) {
warnx("%s and %s are identical (not copied).",
to.p_path, curr->fts_path);
rval = 1;
if (S_ISDIR(curr->fts_statp->st_mode))
(void)fts_set(ftsp, curr, FTS_SKIP);
continue;
}
if (!S_ISDIR(curr->fts_statp->st_mode) &&
S_ISDIR(to_stat.st_mode)) {
warnx("cannot overwrite directory %s with non-directory %s",
to.p_path, curr->fts_path);
rval = 1;
continue;
}
dne = 0;
}
switch (curr->fts_statp->st_mode & S_IFMT) {
case S_IFLNK:
if (copy_link(curr, !dne))
rval = 1;
break;
case S_IFDIR:
if (!Rflag && !rflag) {
if (curr->fts_info == FTS_DP)
warnx("%s is a directory (not copied).",
curr->fts_path);
(void)fts_set(ftsp, curr, FTS_SKIP);
rval = 1;
break;
}
if (curr->fts_info == FTS_D)
{
if (dne) {
if (mkdir(to.p_path,
curr->fts_statp->st_mode | S_IRWXU) < 0)
err(1, "%s", to.p_path);
} else if (!S_ISDIR(to_stat.st_mode)) {
errno = ENOTDIR;
err(1, "%s", to.p_path);
}
}
else if (curr->fts_info == FTS_DP)
{
if (pflag && setfile(curr->fts_statp, 0))
rval = 1;
else if (dne)
(void)chmod(to.p_path,
curr->fts_statp->st_mode);
}
else
{
warnx("directory %s encountered when not expected.", curr->fts_path);
rval = 1;
break;
}
break;
case S_IFBLK:
case S_IFCHR:
if (Rflag) {
if (copy_special(curr->fts_statp, !dne))
rval = 1;
} else
if (copy_file(curr, dne))
rval = 1;
break;
case S_IFIFO:
if (Rflag) {
if (copy_fifo(curr->fts_statp, !dne))
rval = 1;
} else
if (copy_file(curr, dne))
rval = 1;
break;
default:
if (copy_file(curr, dne))
rval = 1;
break;
}
}
if (errno)
err(1, "fts_read");
return (rval);
}
int
mastercmp(a, b)
const FTSENT **a, **b;
{
int a_info, b_info;
a_info = (*a)->fts_info;
if (a_info == FTS_ERR || a_info == FTS_NS || a_info == FTS_DNR)
return (0);
b_info = (*b)->fts_info;
if (b_info == FTS_ERR || b_info == FTS_NS || b_info == FTS_DNR)
return (0);
if (a_info == FTS_D)
return (-1);
if (b_info == FTS_D)
return (1);
return (0);
}