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-rw-r--r--usr.bin/compress/compress.c444
1 files changed, 0 insertions, 444 deletions
diff --git a/usr.bin/compress/compress.c b/usr.bin/compress/compress.c
deleted file mode 100644
index d66d224..0000000
--- a/usr.bin/compress/compress.c
+++ /dev/null
@@ -1,444 +0,0 @@
-/*-
- * 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. 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
-static char copyright[] =
-"@(#) Copyright (c) 1992, 1993\n\
- The Regents of the University of California. All rights reserved.\n";
-#endif /* not lint */
-
-#ifndef lint
-static char sccsid[] = "@(#)compress.c 8.2 (Berkeley) 1/7/94";
-#endif /* not lint */
-
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/stat.h>
-
-#include <err.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#ifdef __STDC__
-#include <stdarg.h>
-#else
-#include <varargs.h>
-#endif
-
-void compress __P((char *, char *, int));
-void cwarn __P((const char *, ...));
-void cwarnx __P((const char *, ...));
-void decompress __P((char *, char *, int));
-int permission __P((char *));
-void setfile __P((char *, struct stat *));
-void usage __P((int));
-
-int eval, force, verbose;
-
-int
-main(argc, argv)
- int argc;
- char *argv[];
-{
- enum {COMPRESS, DECOMPRESS} style;
- size_t len;
- int bits, cat, ch;
- char *p, newname[MAXPATHLEN];
-
- if ((p = rindex(argv[0], '/')) == NULL)
- p = argv[0];
- else
- ++p;
- if (!strcmp(p, "uncompress"))
- style = DECOMPRESS;
- else if (!strcmp(p, "compress"))
- style = COMPRESS;
- else
- errx(1, "unknown program name");
-
- bits = cat = 0;
- while ((ch = getopt(argc, argv, "b:cdfv")) != EOF)
- 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:
- (void)compress("/dev/stdin", "/dev/stdout", bits);
- break;
- case DECOMPRESS:
- (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)
- switch(style) {
- case COMPRESS:
- if (cat) {
- compress(*argv, "/dev/stdout", bits);
- break;
- }
- if ((p = rindex(*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 = rindex(*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);
- } 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);
- }
- break;
- }
- exit (eval);
-}
-
-void
-compress(in, out, bits)
- char *in, *out;
- int bits;
-{
- register int nr;
- struct stat isb, sb;
- FILE *ifp, *ofp;
- int exists, isreg, oreg;
- u_char buf[1024];
-
- exists = !stat(out, &sb);
- if (!force && exists && S_ISREG(sb.st_mode) && !permission(out))
- return;
- isreg = oreg = !exists || S_ISREG(sb.st_mode);
-
- ifp = ofp = NULL;
- if ((ifp = fopen(in, "r")) == NULL) {
- cwarn("%s", in);
- return;
- }
- if (stat(in, &isb)) { /* DON'T FSTAT! */
- cwarn("%s", in);
- goto err;
- }
- if (!S_ISREG(isb.st_mode))
- isreg = 0;
-
- if ((ofp = zopen(out, "w", bits)) == NULL) {
- cwarn("%s", out);
- goto err;
- }
- while ((nr = fread(buf, 1, sizeof(buf), ifp)) != 0)
- if (fwrite(buf, 1, nr, ofp) != nr) {
- cwarn("%s", out);
- goto err;
- }
-
- if (ferror(ifp) || fclose(ifp)) {
- cwarn("%s", in);
- goto err;
- }
- ifp = NULL;
-
- if (fclose(ofp)) {
- cwarn("%s", out);
- goto err;
- }
- ofp = NULL;
-
- if (isreg) {
- 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);
- if (unlink(out))
- cwarn("%s", out);
- 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",
- ((float)sb.st_size / isb.st_size) * 100.0);
- else
- (void)printf("%.0f%% expansion\n",
- ((float)isb.st_size / sb.st_size) * 100.0);
- }
- }
- return;
-
-err: if (ofp) {
- if (oreg)
- (void)unlink(out);
- (void)fclose(ofp);
- }
- if (ifp)
- (void)fclose(ifp);
-}
-
-void
-decompress(in, out, bits)
- char *in, *out;
- int bits;
-{
- register int nr;
- struct stat sb;
- FILE *ifp, *ofp;
- int exists, isreg, oreg;
- u_char buf[1024];
-
- exists = !stat(out, &sb);
- if (!force && exists && S_ISREG(sb.st_mode) && !permission(out))
- return;
- isreg = oreg = !exists || S_ISREG(sb.st_mode);
-
- 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 (stat(in, &sb)) {
- cwarn("%s", in);
- goto err;
- }
- if (!S_ISREG(sb.st_mode))
- isreg = 0;
-
- while ((nr = fread(buf, 1, sizeof(buf), ifp)) != 0)
- if (fwrite(buf, 1, nr, ofp) != nr) {
- cwarn("%s", out);
- goto err;
- }
-
- if (ferror(ifp) || fclose(ifp)) {
- cwarn("%s", in);
- goto err;
- }
- ifp = NULL;
-
- if (fclose(ofp)) {
- cwarn("%s", out);
- goto err;
- }
-
- if (isreg) {
- setfile(out, &sb);
-
- if (unlink(in))
- cwarn("%s", in);
- }
- return;
-
-err: if (ofp) {
- if (oreg)
- (void)unlink(out);
- (void)fclose(ofp);
- }
- if (ifp)
- (void)fclose(ifp);
-}
-
-void
-setfile(name, fs)
- char *name;
- register 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);
-
- if (chflags(name, fs->st_flags))
- cwarn("chflags: %s", name);
-}
-
-int
-permission(fname)
- 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');
-}
-
-void
-usage(iscompress)
- int iscompress;
-{
- if (iscompress)
- (void)fprintf(stderr,
- "usage: compress [-cfv] [-b bits] [file ...]\n");
- else
- (void)fprintf(stderr,
- "usage: uncompress [-c] [-b bits] [file ...]\n");
- exit(1);
-}
-
-void
-#if __STDC__
-cwarnx(const char *fmt, ...)
-#else
-cwarnx(fmt, va_alist)
- int eval;
- const char *fmt;
- va_dcl
-#endif
-{
- va_list ap;
-#if __STDC__
- va_start(ap, fmt);
-#else
- va_start(ap);
-#endif
- vwarnx(fmt, ap);
- va_end(ap);
- eval = 1;
-}
-
-void
-#if __STDC__
-cwarn(const char *fmt, ...)
-#else
-cwarn(fmt, va_alist)
- int eval;
- const char *fmt;
- va_dcl
-#endif
-{
- va_list ap;
-#if __STDC__
- va_start(ap, fmt);
-#else
- va_start(ap);
-#endif
- vwarn(fmt, ap);
- va_end(ap);
- eval = 1;
-}
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