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- /*
- * Copyright (c) 1987 Regents of the University of California.
- * 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. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
- */
-
- #ifndef lint
- char copyright[] =
- "@(#) Copyright (c) 1987 Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char sccsid[] = "@(#)xinstall.c 5.24 (Berkeley) 7/1/90";
- #endif /* not lint */
-
- #include <sys/param.h>
- #include <sys/stat.h>
- #include <sys/file.h>
- #include <grp.h>
- #include <pwd.h>
- #include <stdio.h>
- #include <ctype.h>
- #include <paths.h>
- #include "pathnames.h"
-
- static struct passwd *pp;
- static struct group *gp;
- static int docopy, dostrip, mode = 0755;
- static char *group, *owner, pathbuf[MAXPATHLEN];
-
- main(argc, argv)
- int argc;
- char **argv;
- {
- extern char *optarg;
- extern int optind;
- struct stat from_sb, to_sb;
- mode_t *set, *setmode();
- int ch, no_target;
- char *to_name;
-
- while ((ch = getopt(argc, argv, "cg:m:o:s")) != EOF)
- switch((char)ch) {
- case 'c':
- docopy = 1;
- break;
- case 'g':
- group = optarg;
- break;
- case 'm':
- if (!(set = setmode(optarg))) {
- (void)fprintf(stderr,
- "install: invalid file mode.\n");
- exit(1);
- }
- mode = getmode(set, 0);
- break;
- case 'o':
- owner = optarg;
- break;
- case 's':
- dostrip = 1;
- break;
- case '?':
- default:
- usage();
- }
- argc -= optind;
- argv += optind;
- if (argc < 2)
- usage();
-
- /* get group and owner id's */
- if (group && !(gp = getgrnam(group))) {
- fprintf(stderr, "install: unknown group %s.\n", group);
- exit(1);
- }
- if (owner && !(pp = getpwnam(owner))) {
- fprintf(stderr, "install: unknown user %s.\n", owner);
- exit(1);
- }
-
- no_target = stat(to_name = argv[argc - 1], &to_sb);
- if (!no_target && (to_sb.st_mode & S_IFMT) == S_IFDIR) {
- for (; *argv != to_name; ++argv)
- install(*argv, to_name, 1);
- exit(0);
- }
-
- /* can't do file1 file2 directory/file */
- if (argc != 2)
- usage();
-
- if (!no_target) {
- if (stat(*argv, &from_sb)) {
- fprintf(stderr, "install: can't find %s.\n", *argv);
- exit(1);
- }
- if ((to_sb.st_mode & S_IFMT) != S_IFREG) {
- fprintf(stderr, "install: %s isn't a regular file.\n", to_name);
- exit(1);
- }
- if (to_sb.st_dev == from_sb.st_dev && to_sb.st_ino == from_sb.st_ino) {
- fprintf(stderr, "install: %s and %s are the same file.\n", *argv, to_name);
- exit(1);
- }
- /* unlink now... avoid ETXTBSY errors later */
- (void)unlink(to_name);
- }
- install(*argv, to_name, 0);
- exit(0);
- }
-
- /*
- * install --
- * build a path name and install the file
- */
- install(from_name, to_name, isdir)
- char *from_name, *to_name;
- int isdir;
- {
- struct stat from_sb;
- int devnull, from_fd, to_fd;
- char *C, *rindex();
-
- /* if try to install NULL file to a directory, fails */
- if (isdir || strcmp(from_name, _PATH_DEVNULL)) {
- if (stat(from_name, &from_sb)) {
- fprintf(stderr, "install: can't find %s.\n", from_name);
- exit(1);
- }
- if ((from_sb.st_mode & S_IFMT) != S_IFREG) {
- fprintf(stderr, "install: %s isn't a regular file.\n", from_name);
- exit(1);
- }
- /* build the target path */
- if (isdir) {
- (void)sprintf(pathbuf, "%s/%s", to_name, (C = rindex(from_name, '/')) ? ++C : from_name);
- to_name = pathbuf;
- }
- devnull = 0;
- } else
- devnull = 1;
-
- /* unlink now... avoid ETXTBSY errors later */
- (void)unlink(to_name);
-
- /* create target */
- if ((to_fd = open(to_name, O_CREAT|O_WRONLY|O_TRUNC, 0600)) < 0) {
- error(to_name);
- exit(1);
- }
- if (!devnull) {
- if ((from_fd = open(from_name, O_RDONLY, 0)) < 0) {
- (void)unlink(to_name);
- error(from_name);
- exit(1);
- }
- copy(from_fd, from_name, to_fd, to_name);
- (void)close(from_fd);
- }
- if (dostrip)
- strip(to_name);
- /*
- * set owner, group, mode for target; do the chown first,
- * chown may lose the setuid bits.
- */
- if ((group || owner) &&
- fchown(to_fd, owner ? pp->pw_uid : -1, group ? gp->gr_gid : -1) ||
- fchmod(to_fd, mode)) {
- error(to_name);
- bad(to_name);
- }
- (void)close(to_fd);
- if (!docopy && !devnull && unlink(from_name)) {
- error(from_name);
- exit(1);
- }
- }
-
- /*
- * copy --
- * copy from one file to another
- */
- copy(from_fd, from_name, to_fd, to_name)
- register int from_fd, to_fd;
- char *from_name, *to_name;
- {
- register int n;
- char buf[MAXBSIZE];
-
- while ((n = read(from_fd, buf, sizeof(buf))) > 0)
- if (write(to_fd, buf, n) != n) {
- error(to_name);
- bad(to_name);
- }
- if (n == -1) {
- error(from_name);
- bad(to_name);
- }
- }
-
- /*
- * strip --
- * use strip(1) to strip the target file
- */
- strip(to_name)
- char *to_name;
- {
- int status;
-
- switch (vfork()) {
- case -1:
- error("fork");
- bad(to_name);
- case 0:
- execl(_PATH_STRIP, "strip", to_name, (char *)NULL);
- error(_PATH_STRIP);
- _exit(1);
- default:
- if (wait(&status) == -1 || status)
- bad(to_name);
- }
- }
-
- /*
- * error --
- * print out an error message
- */
- error(s)
- char *s;
- {
- extern int errno;
- char *strerror();
-
- (void)fprintf(stderr, "install: %s: %s\n", s, strerror(errno));
- }
-
- /*
- * bad --
- * remove created target and die
- */
- bad(fname)
- char *fname;
- {
- (void)unlink(fname);
- exit(1);
- }
-
- /*
- * usage --
- * print a usage message and die
- */
- usage()
- {
- (void)fprintf(stderr,
- "usage: install [-cs] [-g group] [-m mode] [-o owner] file1 file2;\n\tor file1 ... fileN directory\n");
- exit(1);
- }
-