зеркало из https://github.com/mozilla/pjs.git
337 строки
8.0 KiB
C
337 строки
8.0 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
/*
|
|
** Netscape portable install command.
|
|
**
|
|
** Brendan Eich, 7/20/95
|
|
*/
|
|
#include <stdio.h> /* OSF/1 requires this before grp.h, so put it first */
|
|
#include <assert.h>
|
|
#include <fcntl.h>
|
|
#include <grp.h>
|
|
#include <pwd.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <utime.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include "pathsub.h"
|
|
|
|
#define HAVE_LCHOWN
|
|
|
|
#if defined(AIX) || defined(BSDI) || defined(HPUX) || defined(LINUX) || defined(SUNOS4) || defined(SCO) || defined(UNIXWARE) || defined(RHAPSODY)
|
|
#undef HAVE_LCHOWN
|
|
#endif
|
|
|
|
/*
|
|
* Does getcwd() take NULL as the first argument and malloc
|
|
* the result buffer?
|
|
*/
|
|
#if !defined(RHAPSODY)
|
|
#define GETCWD_CAN_MALLOC
|
|
#endif
|
|
|
|
#ifdef LINUX
|
|
#include <getopt.h>
|
|
#endif
|
|
|
|
#if defined(SCO) || defined(UNIXWARE) || defined(SNI) || defined(NCR) || defined(NEC)
|
|
#if !defined(S_ISLNK) && defined(S_IFLNK)
|
|
#define S_ISLNK(a) (((a) & S_IFMT) == S_IFLNK)
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(SNI)
|
|
extern int fchmod(int fildes, mode_t mode);
|
|
#endif
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
fprintf(stderr,
|
|
"usage: %s [-C cwd] [-L linkprefix] [-m mode] [-o owner] [-g group]\n"
|
|
" %*s [-DdltR] file [file ...] directory\n",
|
|
program, strlen(program), "");
|
|
exit(2);
|
|
}
|
|
|
|
static int
|
|
mkdirs(char *path, mode_t mode)
|
|
{
|
|
char *cp;
|
|
struct stat sb;
|
|
|
|
while (*path == '/' && path[1] == '/')
|
|
path++;
|
|
while ((cp = strrchr(path, '/')) && cp[1] == '\0')
|
|
*cp = '\0';
|
|
if (cp && cp != path) {
|
|
*cp = '\0';
|
|
if ((lstat(path, &sb) < 0 || !S_ISDIR(sb.st_mode)) &&
|
|
mkdirs(path, mode) < 0) {
|
|
return -1;
|
|
}
|
|
*cp = '/';
|
|
}
|
|
return mkdir(path, mode);
|
|
}
|
|
|
|
static uid_t
|
|
touid(char *owner)
|
|
{
|
|
struct passwd *pw;
|
|
uid_t uid;
|
|
char *cp;
|
|
|
|
pw = getpwnam(owner);
|
|
if (pw)
|
|
return pw->pw_uid;
|
|
uid = strtol(owner, &cp, 0);
|
|
if (uid == 0 && cp == owner)
|
|
fail("cannot find uid for %s", owner);
|
|
return uid;
|
|
}
|
|
|
|
static gid_t
|
|
togid(char *group)
|
|
{
|
|
struct group *gr;
|
|
gid_t gid;
|
|
char *cp;
|
|
|
|
gr = getgrnam(group);
|
|
if (gr)
|
|
return gr->gr_gid;
|
|
gid = strtol(group, &cp, 0);
|
|
if (gid == 0 && cp == group)
|
|
fail("cannot find gid for %s", group);
|
|
return gid;
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int onlydir, dodir, dolink, dorelsymlink, dotimes, opt, len, lplen, tdlen, bnlen, exists, fromfd, tofd, cc, wc;
|
|
mode_t mode = 0755;
|
|
char *linkprefix, *owner, *group, *cp, *cwd, *todir, *toname, *name, *base, *linkname, *bp, buf[BUFSIZ];
|
|
uid_t uid;
|
|
gid_t gid;
|
|
struct stat sb, tosb;
|
|
struct utimbuf utb;
|
|
|
|
program = argv[0];
|
|
cwd = linkname = linkprefix = owner = group = 0;
|
|
onlydir = dodir = dolink = dorelsymlink = dotimes = lplen = 0;
|
|
|
|
while ((opt = getopt(argc, argv, "C:DdlL:Rm:o:g:t")) != EOF) {
|
|
switch (opt) {
|
|
case 'C':
|
|
cwd = optarg;
|
|
break;
|
|
case 'D':
|
|
onlydir = 1;
|
|
break;
|
|
case 'd':
|
|
dodir = 1;
|
|
break;
|
|
case 'l':
|
|
dolink = 1;
|
|
break;
|
|
case 'L':
|
|
linkprefix = optarg;
|
|
lplen = strlen(linkprefix);
|
|
dolink = 1;
|
|
break;
|
|
case 'R':
|
|
dolink = dorelsymlink = 1;
|
|
break;
|
|
case 'm':
|
|
mode = strtoul(optarg, &cp, 8);
|
|
if (mode == 0 && cp == optarg)
|
|
usage();
|
|
break;
|
|
case 'o':
|
|
owner = optarg;
|
|
break;
|
|
case 'g':
|
|
group = optarg;
|
|
break;
|
|
case 't':
|
|
dotimes = 1;
|
|
break;
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
|
|
argc -= optind;
|
|
argv += optind;
|
|
if (argc < 2 - onlydir)
|
|
usage();
|
|
|
|
todir = argv[argc-1];
|
|
if ((stat(todir, &sb) < 0 || !S_ISDIR(sb.st_mode)) &&
|
|
mkdirs(todir, 0777) < 0) {
|
|
fail("cannot make directory %s", todir);
|
|
}
|
|
if (onlydir)
|
|
return 0;
|
|
|
|
if (!cwd) {
|
|
#ifdef GETCWD_CAN_MALLOC
|
|
cwd = getcwd(0, PATH_MAX);
|
|
#else
|
|
cwd = malloc(PATH_MAX + 1);
|
|
cwd = getcwd(cwd, PATH_MAX);
|
|
#endif
|
|
}
|
|
xchdir(todir);
|
|
#ifdef GETCWD_CAN_MALLOC
|
|
todir = getcwd(0, PATH_MAX);
|
|
#else
|
|
todir = malloc(PATH_MAX + 1);
|
|
todir = getcwd(todir, PATH_MAX);
|
|
#endif
|
|
tdlen = strlen(todir);
|
|
xchdir(cwd);
|
|
tdlen = strlen(todir);
|
|
|
|
uid = owner ? touid(owner) : -1;
|
|
gid = group ? togid(group) : -1;
|
|
|
|
while (--argc > 0) {
|
|
name = *argv++;
|
|
len = strlen(name);
|
|
base = xbasename(name);
|
|
bnlen = strlen(base);
|
|
toname = (char*)xmalloc(tdlen + 1 + bnlen + 1);
|
|
sprintf(toname, "%s/%s", todir, base);
|
|
exists = (lstat(toname, &tosb) == 0);
|
|
|
|
if (dodir) {
|
|
/* -d means create a directory, always */
|
|
if (exists && !S_ISDIR(tosb.st_mode)) {
|
|
(void) unlink(toname);
|
|
exists = 0;
|
|
}
|
|
if (!exists && mkdir(toname, mode) < 0)
|
|
fail("cannot make directory %s", toname);
|
|
if ((owner || group) && chown(toname, uid, gid) < 0)
|
|
fail("cannot change owner of %s", toname);
|
|
} else if (dolink) {
|
|
if (*name == '/') {
|
|
/* source is absolute pathname, link to it directly */
|
|
linkname = 0;
|
|
} else {
|
|
if (linkprefix) {
|
|
/* -L implies -l and prefixes names with a $cwd arg. */
|
|
len += lplen + 1;
|
|
linkname = (char*)xmalloc(len + 1);
|
|
sprintf(linkname, "%s/%s", linkprefix, name);
|
|
} else if (dorelsymlink) {
|
|
/* Symlink the relative path from todir to source name. */
|
|
linkname = (char*)xmalloc(PATH_MAX);
|
|
|
|
if (*todir == '/') {
|
|
/* todir is absolute: skip over common prefix. */
|
|
lplen = relatepaths(todir, cwd, linkname);
|
|
strcpy(linkname + lplen, name);
|
|
} else {
|
|
/* todir is named by a relative path: reverse it. */
|
|
reversepath(todir, name, len, linkname);
|
|
xchdir(cwd);
|
|
}
|
|
|
|
len = strlen(linkname);
|
|
}
|
|
name = linkname;
|
|
}
|
|
|
|
/* Check for a pre-existing symlink with identical content. */
|
|
if (exists &&
|
|
(!S_ISLNK(tosb.st_mode) ||
|
|
readlink(toname, buf, sizeof buf) != len ||
|
|
strncmp(buf, name, len) != 0)) {
|
|
(void) (S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname);
|
|
exists = 0;
|
|
}
|
|
if (!exists && symlink(name, toname) < 0)
|
|
fail("cannot make symbolic link %s", toname);
|
|
#ifdef HAVE_LCHOWN
|
|
if ((owner || group) && lchown(toname, uid, gid) < 0)
|
|
fail("cannot change owner of %s", toname);
|
|
#endif
|
|
|
|
if (linkname) {
|
|
free(linkname);
|
|
linkname = 0;
|
|
}
|
|
} else {
|
|
/* Copy from name to toname, which might be the same file. */
|
|
fromfd = open(name, O_RDONLY);
|
|
if (fromfd < 0 || fstat(fromfd, &sb) < 0)
|
|
fail("cannot access %s", name);
|
|
if (exists && (!S_ISREG(tosb.st_mode) || access(toname, W_OK) < 0))
|
|
(void) (S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname);
|
|
tofd = open(toname, O_CREAT | O_WRONLY, 0666);
|
|
if (tofd < 0)
|
|
fail("cannot create %s", toname);
|
|
|
|
bp = buf;
|
|
while ((cc = read(fromfd, bp, sizeof buf)) > 0) {
|
|
while ((wc = write(tofd, bp, cc)) > 0) {
|
|
if ((cc -= wc) == 0)
|
|
break;
|
|
bp += wc;
|
|
}
|
|
if (wc < 0)
|
|
fail("cannot write to %s", toname);
|
|
}
|
|
if (cc < 0)
|
|
fail("cannot read from %s", name);
|
|
|
|
if (ftruncate(tofd, sb.st_size) < 0)
|
|
fail("cannot truncate %s", toname);
|
|
if (dotimes) {
|
|
utb.actime = sb.st_atime;
|
|
utb.modtime = sb.st_mtime;
|
|
if (utime(toname, &utb) < 0)
|
|
fail("cannot set times of %s", toname);
|
|
}
|
|
if (fchmod(tofd, mode) < 0)
|
|
fail("cannot change mode of %s", toname);
|
|
if ((owner || group) && fchown(tofd, uid, gid) < 0)
|
|
fail("cannot change owner of %s", toname);
|
|
|
|
/* Must check for delayed (NFS) write errors on close. */
|
|
if (close(tofd) < 0)
|
|
fail("cannot write to %s", toname);
|
|
close(fromfd);
|
|
}
|
|
|
|
free(toname);
|
|
}
|
|
|
|
free(cwd);
|
|
free(todir);
|
|
return 0;
|
|
}
|