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-rw-r--r--usr.bin/compress/compress.c459
1 files changed, 0 insertions, 459 deletions
diff --git a/usr.bin/compress/compress.c b/usr.bin/compress/compress.c
deleted file mode 100644
index 93fdc76..0000000
--- a/usr.bin/compress/compress.c
+++ /dev/null
@@ -1,459 +0,0 @@
-/* $NetBSD: compress.c,v 1.26 2011/08/30 23:08:05 joerg Exp $ */
-
-/*-
- * Copyright (c) 1992, 1993
- * The 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. 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.
- */
-
-#include <sys/cdefs.h>
-#ifndef lint
-__COPYRIGHT("@(#) Copyright (c) 1992, 1993\
- The Regents of the University of California. All rights reserved.");
-#endif /* not lint */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)compress.c 8.2 (Berkeley) 1/7/94";
-#else
-__RCSID("$NetBSD: compress.c,v 1.26 2011/08/30 23:08:05 joerg Exp $");
-#endif
-#endif /* not lint */
-
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/stat.h>
-
-#include <err.h>
-#include <errno.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-static void compress(const char *, const char *, int);
-static void cwarn(const char *, ...) __printflike(1, 2);
-static void cwarnx(const char *, ...) __printflike(1, 2);
-static void decompress(const char *, const char *, int);
-static int permission(const char *);
-static void setfile(const char *, struct stat *);
-__dead static void usage(int);
-
-extern FILE *zopen(const char *fname, const char *mode, int bits);
-
-static int eval, force, verbose;
-static int isstdout, isstdin;
-
-int
-main(int argc, char **argv)
-{
- enum {COMPRESS, DECOMPRESS} style = COMPRESS;
- size_t len;
- int bits, cat, ch;
- char *p, newname[MAXPATHLEN];
-
- if ((p = strrchr(argv[0], '/')) == NULL)
- p = argv[0];
- else
- ++p;
- if (!strcmp(p, "uncompress"))
- style = DECOMPRESS;
- else if (!strcmp(p, "compress"))
- style = COMPRESS;
- else if (!strcmp(p, "zcat")) {
- style = DECOMPRESS;
- cat = 1;
- }
- else
- errx(1, "unknown program name");
-
- bits = cat = 0;
- while ((ch = getopt(argc, argv, "b:cdfv")) != -1)
- switch(ch) {
- case 'b':
- bits = strtol(optarg, &p, 10);
- if (*p)
- errx(1, "illegal bit count -- %s", optarg);
- break;
- case 'c':
- cat = 1;
- break;
- case 'd': /* Backward compatible. */
- style = DECOMPRESS;
- break;
- case 'f':
- force = 1;
- break;
- case 'v':
- verbose = 1;
- break;
- case '?':
- default:
- usage(style == COMPRESS);
- }
- argc -= optind;
- argv += optind;
-
- if (argc == 0) {
- switch(style) {
- case COMPRESS:
- isstdout = 1;
- isstdin = 1;
- (void)compress("/dev/stdin", "/dev/stdout", bits);
- break;
- case DECOMPRESS:
- isstdout = 1;
- isstdin = 1;
- (void)decompress("/dev/stdin", "/dev/stdout", bits);
- break;
- }
- exit (eval);
- }
-
- if (cat == 1 && argc > 1)
- errx(1, "the -c option permits only a single file argument");
-
- for (; *argv; ++argv) {
- isstdout = 0;
- switch(style) {
- case COMPRESS:
- if (cat) {
- isstdout = 1;
- compress(*argv, "/dev/stdout", bits);
- break;
- }
- if ((p = strrchr(*argv, '.')) != NULL &&
- !strcmp(p, ".Z")) {
- cwarnx("%s: name already has trailing .Z",
- *argv);
- break;
- }
- len = strlen(*argv);
- if (len > sizeof(newname) - 3) {
- cwarnx("%s: name too long", *argv);
- break;
- }
- memmove(newname, *argv, len);
- newname[len] = '.';
- newname[len + 1] = 'Z';
- newname[len + 2] = '\0';
- compress(*argv, newname, bits);
- break;
- case DECOMPRESS:
- len = strlen(*argv);
- if ((p = strrchr(*argv, '.')) == NULL ||
- strcmp(p, ".Z")) {
- if (len > sizeof(newname) - 3) {
- cwarnx("%s: name too long", *argv);
- break;
- }
- memmove(newname, *argv, len);
- newname[len] = '.';
- newname[len + 1] = 'Z';
- newname[len + 2] = '\0';
- decompress(newname,
- cat ? "/dev/stdout" : *argv, bits);
- if (cat)
- isstdout = 1;
- } else {
- if (len - 2 > sizeof(newname) - 1) {
- cwarnx("%s: name too long", *argv);
- break;
- }
- memmove(newname, *argv, len - 2);
- newname[len - 2] = '\0';
- decompress(*argv,
- cat ? "/dev/stdout" : newname, bits);
- if (cat)
- isstdout = 1;
- }
- break;
- }
- }
- exit (eval);
-}
-
-static void
-compress(const char *in, const char *out, int bits)
-{
- size_t nr;
- struct stat isb, sb;
- const char *error = NULL;
- FILE *ifp, *ofp;
- int exists, isreg, oreg;
- u_char buf[BUFSIZ];
-
- if (!isstdout) {
- exists = !stat(out, &sb);
- if (!force && exists && S_ISREG(sb.st_mode) && !permission(out))
- return;
- oreg = !exists || S_ISREG(sb.st_mode);
- } else
- oreg = 0;
-
- ifp = ofp = NULL;
- if ((ifp = fopen(in, "r")) == NULL) {
- cwarn("%s", in);
- return;
- }
-
- if (!isstdin) {
- if (stat(in, &isb)) { /* DON'T FSTAT! */
- cwarn("%s", in);
- goto err;
- }
- if (!S_ISREG(isb.st_mode))
- isreg = 0;
- else
- isreg = 1;
- } else
- isreg = 0;
-
- if ((ofp = zopen(out, "w", bits)) == NULL) {
- cwarn("%s", out);
- goto err;
- }
- oreg <<= 1;
- while ((nr = fread(buf, 1, sizeof(buf), ifp)) != 0)
- if (fwrite(buf, 1, nr, ofp) != nr) {
- cwarn("%s", out);
- goto err;
- }
-
- if (ferror(ifp))
- error = in;
- if (fclose(ifp))
- if (error == NULL)
- error = in;
- if (fclose(ofp))
- if (error == NULL)
- error = out;
- ifp = NULL;
- ofp = NULL;
- if (error) {
- cwarn("%s", error);
- goto err;
- }
-
- if (isreg && oreg) {
- if (stat(out, &sb)) {
- cwarn("%s", out);
- goto err;
- }
-
- if (!force && sb.st_size >= isb.st_size) {
- if (verbose)
- (void)printf("%s: file would grow; left unmodified\n", in);
- goto err;
- }
-
- setfile(out, &isb);
-
- if (unlink(in))
- cwarn("%s", in);
-
- if (verbose) {
- (void)printf("%s: ", out);
- if (isb.st_size > sb.st_size)
- (void)printf("%.0f%% compression\n",
- ((double)sb.st_size / isb.st_size) * 100.0);
- else
- (void)printf("%.0f%% expansion\n",
- ((double)isb.st_size / sb.st_size) * 100.0);
- }
- }
- return;
-
-err: if (ofp)
- (void)fclose(ofp);
- if (oreg == 2)
- (void)unlink(out);
- if (ifp)
- (void)fclose(ifp);
-}
-
-static void
-decompress(const char *in, const char *out, int bits)
-{
- size_t nr;
- struct stat sb;
- FILE *ifp, *ofp;
- int exists, isreg, oreg;
- u_char buf[BUFSIZ];
-
- if (!isstdout) {
- exists = !stat(out, &sb);
- if (!force && exists && S_ISREG(sb.st_mode) && !permission(out))
- return;
- oreg = !exists || S_ISREG(sb.st_mode);
- } else
- oreg = 0;
-
- ifp = ofp = NULL;
- if ((ofp = fopen(out, "w")) == NULL) {
- cwarn("%s", out);
- return;
- }
-
- if ((ifp = zopen(in, "r", bits)) == NULL) {
- cwarn("%s", in);
- goto err;
- }
- if (!isstdin) {
- if (stat(in, &sb)) {
- cwarn("%s", in);
- goto err;
- }
- if (!S_ISREG(sb.st_mode))
- isreg = 0;
- else
- isreg = 1;
- } else
- isreg = 0;
-
- oreg <<= 1;
- while ((nr = fread(buf, 1, sizeof(buf), ifp)) != 0)
- if (fwrite(buf, 1, nr, ofp) != nr) {
- cwarn("%s", out);
- goto err;
- }
-
- if (ferror(ifp)) {
- cwarn("%s", in);
- goto err;
- }
- if (fclose(ifp)) {
- ifp = NULL;
- cwarn("%s", in);
- goto err;
- }
- ifp = NULL;
-
- if (fclose(ofp)) {
- ofp = NULL;
- cwarn("%s", out);
- goto err;
- }
-
- if (isreg && oreg) {
- setfile(out, &sb);
-
- if (unlink(in))
- cwarn("%s", in);
- }
- return;
-
-err: if (ofp)
- (void)fclose(ofp);
- if (oreg == 2)
- (void)unlink(out);
- if (ifp)
- (void)fclose(ifp);
-}
-
-static void
-setfile(const char *name, struct stat *fs)
-{
- static struct timeval tv[2];
-
- fs->st_mode &= S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
-
- TIMESPEC_TO_TIMEVAL(&tv[0], &fs->st_atimespec);
- TIMESPEC_TO_TIMEVAL(&tv[1], &fs->st_mtimespec);
- if (utimes(name, tv))
- cwarn("utimes: %s", name);
-
- /*
- * 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 (chown(name, fs->st_uid, fs->st_gid)) {
- if (errno != EPERM)
- cwarn("chown: %s", name);
- fs->st_mode &= ~(S_ISUID|S_ISGID);
- }
- if (chmod(name, fs->st_mode))
- cwarn("chown: %s", name);
-
- /*
- * Restore the file's flags. However, do this only if the original
- * file had any flags set; this avoids a warning on file-systems that
- * do not support flags.
- */
- if (fs->st_flags != 0 && chflags(name, fs->st_flags))
- cwarn("chflags: %s", name);
-}
-
-static int
-permission(const char *fname)
-{
- int ch, first;
-
- if (!isatty(fileno(stderr)))
- return (0);
- (void)fprintf(stderr, "overwrite %s? ", fname);
- first = ch = getchar();
- while (ch != '\n' && ch != EOF)
- ch = getchar();
- return (first == 'y');
-}
-
-static void
-usage(int iscompress)
-{
- if (iscompress)
- (void)fprintf(stderr,
- "usage: compress [-cdfv] [-b bits] [file ...]\n");
- else
- (void)fprintf(stderr,
- "usage: uncompress [-cdfv] [-b bits] [file ...]\n");
- exit(1);
-}
-
-static void
-cwarnx(const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- vwarnx(fmt, ap);
- va_end(ap);
- eval = 1;
-}
-
-static void
-cwarn(const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- vwarn(fmt, ap);
- va_end(ap);
- eval = 1;
-}
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