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authorTheo de Raadt <deraadt@cvs.openbsd.org>1995-10-18 08:53:40 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>1995-10-18 08:53:40 +0000
commitd6583bb2a13f329cf0332ef2570eb8bb8fc0e39c (patch)
treeece253b876159b39c620e62b6c9b1174642e070e /usr.bin/uudecode/uudecode.c
initial import of NetBSD tree
Diffstat (limited to 'usr.bin/uudecode/uudecode.c')
-rw-r--r--usr.bin/uudecode/uudecode.c203
1 files changed, 203 insertions, 0 deletions
diff --git a/usr.bin/uudecode/uudecode.c b/usr.bin/uudecode/uudecode.c
new file mode 100644
index 00000000000..b8eba445d37
--- /dev/null
+++ b/usr.bin/uudecode/uudecode.c
@@ -0,0 +1,203 @@
+/* $NetBSD: uudecode.c,v 1.6 1994/11/17 07:40:43 jtc Exp $ */
+
+/*-
+ * Copyright (c) 1983, 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.
+ */
+
+char copyright[] =
+"@(#) Copyright (c) 1983, 1993\n\
+ The Regents of the University of California. All rights reserved.\n";
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)uudecode.c 8.2 (Berkeley) 4/2/94";
+#endif
+static char rcsid[] = "$NetBSD: uudecode.c,v 1.6 1994/11/17 07:40:43 jtc Exp $";
+#endif /* not lint */
+
+/*
+ * uudecode [file ...]
+ *
+ * create the specified file, decoding as you go.
+ * used with uuencode.
+ */
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <errno.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+
+#include <pwd.h>
+#include <unistd.h>
+
+static int decode();
+static void usage();
+char *filename;
+
+int
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+ int rval;
+
+ setlocale(LC_ALL, "");
+
+ while (getopt(argc, argv, "") != -1)
+ usage();
+ argc -= optind;
+ argv += optind;
+
+ if (*argv) {
+ rval = 0;
+ do {
+ if (!freopen(filename = *argv, "r", stdin)) {
+ (void)fprintf(stderr, "uudecode: %s: %s\n",
+ *argv, strerror(errno));
+ rval = 1;
+ continue;
+ }
+ rval |= decode();
+ } while (*++argv);
+ } else {
+ filename = "stdin";
+ rval = decode();
+ }
+ exit(rval);
+}
+
+static int
+decode()
+{
+ extern int errno;
+ struct passwd *pw;
+ register int n;
+ register char ch, *p;
+ int mode, n1;
+ char buf[MAXPATHLEN];
+
+ /* search for header line */
+ do {
+ if (!fgets(buf, sizeof(buf), stdin)) {
+ (void)fprintf(stderr,
+ "uudecode: %s: no \"begin\" line\n", filename);
+ return(1);
+ }
+ } while (strncmp(buf, "begin ", 6));
+ (void)sscanf(buf, "begin %o %s", &mode, buf);
+
+ /* handle ~user/file format */
+ if (buf[0] == '~') {
+ if (!(p = index(buf, '/'))) {
+ (void)fprintf(stderr, "uudecode: %s: illegal ~user.\n",
+ filename);
+ return(1);
+ }
+ *p++ = NULL;
+ if (!(pw = getpwnam(buf + 1))) {
+ (void)fprintf(stderr, "uudecode: %s: no user %s.\n",
+ filename, buf);
+ return(1);
+ }
+ n = strlen(pw->pw_dir);
+ n1 = strlen(p);
+ if (n + n1 + 2 > MAXPATHLEN) {
+ (void)fprintf(stderr, "uudecode: %s: path too long.\n",
+ filename);
+ return(1);
+ }
+ bcopy(p, buf + n + 1, n1 + 1);
+ bcopy(pw->pw_dir, buf, n);
+ buf[n] = '/';
+ }
+
+ /* create output file, set mode */
+ if (!freopen(buf, "w", stdout) ||
+ fchmod(fileno(stdout), mode&0666)) {
+ (void)fprintf(stderr, "uudecode: %s: %s: %s\n", buf,
+ filename, strerror(errno));
+ return(1);
+ }
+
+ /* for each input line */
+ for (;;) {
+ if (!fgets(p = buf, sizeof(buf), stdin)) {
+ (void)fprintf(stderr, "uudecode: %s: short file.\n",
+ filename);
+ return(1);
+ }
+#define DEC(c) (((c) - ' ') & 077) /* single character decode */
+ /*
+ * `n' is used to avoid writing out all the characters
+ * at the end of the file.
+ */
+ if ((n = DEC(*p)) <= 0)
+ break;
+ for (++p; n > 0; p += 4, n -= 3)
+ if (n >= 3) {
+ ch = DEC(p[0]) << 2 | DEC(p[1]) >> 4;
+ putchar(ch);
+ ch = DEC(p[1]) << 4 | DEC(p[2]) >> 2;
+ putchar(ch);
+ ch = DEC(p[2]) << 6 | DEC(p[3]);
+ putchar(ch);
+ }
+ else {
+ if (n >= 1) {
+ ch = DEC(p[0]) << 2 | DEC(p[1]) >> 4;
+ putchar(ch);
+ }
+ if (n >= 2) {
+ ch = DEC(p[1]) << 4 | DEC(p[2]) >> 2;
+ putchar(ch);
+ }
+ if (n >= 3) {
+ ch = DEC(p[2]) << 6 | DEC(p[3]);
+ putchar(ch);
+ }
+ }
+ }
+ if (!fgets(buf, sizeof(buf), stdin) || strcmp(buf, "end\n")) {
+ (void)fprintf(stderr, "uudecode: %s: no \"end\" line.\n",
+ filename);
+ return(1);
+ }
+ return(0);
+}
+
+static void
+usage()
+{
+ (void)fprintf(stderr, "usage: uudecode [file ...]\n");
+ exit(1);
+}