Add new apps md5sum uudecode uuencode, fix some minor formatting things.

 -Erik


git-svn-id: svn://busybox.net/trunk/busybox@640 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 350 insertions, 0 deletions

diff --git a/uudecode.c b/uudecode.c
new file mode 100644
index 000000000..4216e336a
--- /dev/null
+++ b/uudecode.c
@@ -0,0 +1,350 @@
+/* uudecode.c -- uudecode utility.
+ * Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+ *
+ * This product is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This product is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this product; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+/* Copyright (c) 1983 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.
+ */
+
+/* Reworked to GNU style by Ian Lance Taylor, ian@airs.com, August 93.  */
+
+#include "internal.h"
+
+#include <stdio.h>
+#include <errno.h>
+#include <pwd.h>
+
+/*struct passwd *getpwnam();*/
+
+/* Single character decode.  */
+#define DEC(Char) (((Char) - ' ') & 077)
+
+static int read_stduu (const char *inname)
+{
+  char buf[2 * BUFSIZ];
+
+  while (1) {
+    int n;
+    char *p;
+
+    if (fgets (buf, sizeof(buf), stdin) == NULL) {
+      errorMsg("%s: Short file\n", inname);
+      return FALSE;
+    }
+    p = buf;
+
+    /* N is used to avoid writing out all the characters at the end of
+       the file.  */
+    n = DEC (*p);
+    if (n <= 0)
+      break;
+    for (++p; n > 0; p += 4, n -= 3) {
+      char ch;
+
+      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 (fgets (buf, sizeof(buf), stdin) == NULL
+      || strcmp (buf, "end\n")) {
+    errorMsg("%s: No `end' line\n", inname);
+    return FALSE;
+  }
+
+  return TRUE;
+}
+
+static int read_base64 (const char *inname)
+{
+  static const char b64_tab[256] = {
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*000-007*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*010-017*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*020-027*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*030-037*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*040-047*/
+    '\177', '\177', '\177', '\76',  '\177', '\177', '\177', '\77',  /*050-057*/
+    '\64',  '\65',  '\66',  '\67',  '\70',  '\71',  '\72',  '\73',  /*060-067*/
+    '\74',  '\75',  '\177', '\177', '\177', '\100', '\177', '\177', /*070-077*/
+    '\177', '\0',   '\1',   '\2',   '\3',   '\4',   '\5',   '\6',   /*100-107*/
+    '\7',   '\10',  '\11',  '\12',  '\13',  '\14',  '\15',  '\16',  /*110-117*/
+    '\17',  '\20',  '\21',  '\22',  '\23',  '\24',  '\25',  '\26',  /*120-127*/
+    '\27',  '\30',  '\31',  '\177', '\177', '\177', '\177', '\177', /*130-137*/
+    '\177', '\32',  '\33',  '\34',  '\35',  '\36',  '\37',  '\40',  /*140-147*/
+    '\41',  '\42',  '\43',  '\44',  '\45',  '\46',  '\47',  '\50',  /*150-157*/
+    '\51',  '\52',  '\53',  '\54',  '\55',  '\56',  '\57',  '\60',  /*160-167*/
+    '\61',  '\62',  '\63',  '\177', '\177', '\177', '\177', '\177', /*170-177*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*200-207*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*210-217*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*220-227*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*230-237*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*240-247*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*250-257*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*260-267*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*270-277*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*300-307*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*310-317*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*320-327*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*330-337*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*340-347*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*350-357*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*360-367*/
+    '\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /*370-377*/
+  };
+  unsigned char buf[2 * BUFSIZ];
+
+  while (1) {
+    int last_data = 0;
+    unsigned char *p;
+
+    if (fgets (buf, sizeof(buf), stdin) == NULL) {
+      errorMsg("%s: Short file\n", inname);
+      return FALSE;
+    }
+    p = buf;
+
+    if (memcmp (buf, "====", 4) == 0)
+      break;
+    if (last_data != 0) {
+      errorMsg("%s: data following `=' padding character\n", inname);
+      return FALSE;
+    }
+
+    /* The following implementation of the base64 decoding might look
+       a bit clumsy but I only try to follow the POSIX standard:
+       ``All line breaks or other characters not found in the table
+       [with base64 characters] shall be ignored by decoding
+       software.''  */
+    while (*p != '\n') {
+      char c1, c2, c3;
+
+      while ((b64_tab[*p] & '\100') != 0)
+        if (*p == '\n' || *p++ == '=')
+          break;
+      if (*p == '\n')
+        /* This leaves the loop.  */
+        continue;
+      c1 = b64_tab[*p++];
+
+      while ((b64_tab[*p] & '\100') != 0)
+        if (*p == '\n' || *p++ == '=') {
+          errorMsg("%s: illegal line\n", inname);
+          return FALSE;
+        }
+      c2 = b64_tab[*p++];
+
+      while (b64_tab[*p] == '\177')
+        if (*p++ == '\n') {
+          errorMsg("%s: illegal line\n", inname);
+          return FALSE;
+        }
+      if (*p == '=') {
+        putchar (c1 << 2 | c2 >> 4);
+        last_data = 1;
+        break;
+      }
+      c3 = b64_tab[*p++];
+
+      while (b64_tab[*p] == '\177')
+        if (*p++ == '\n') {
+          errorMsg("%s: illegal line\n", inname);
+          return FALSE;
+        }
+      putchar (c1 << 2 | c2 >> 4);
+      putchar (c2 << 4 | c3 >> 2);
+      if (*p == '=') {
+        last_data = 1;
+        break;
+      }
+      else
+        putchar (c3 << 6 | b64_tab[*p++]);
+    }
+  }
+
+  return TRUE;
+}
+
+static int decode (const char *inname,
+                   const char *forced_outname)
+{
+  struct passwd *pw;
+  register int n;
+  register char *p;
+  int mode, n1;
+  char buf[2 * BUFSIZ];
+  char *outname;
+  int do_base64 = 0;
+
+  /* Search for header line.  */
+
+  while (1) {
+    if (fgets (buf, sizeof (buf), stdin) == NULL) {
+      errorMsg("%s: No `begin' line\n", inname);
+      return FALSE;
+    }
+
+    if (strncmp (buf, "begin", 5) == 0) {
+      if (sscanf (buf, "begin-base64 %o %s", &mode, buf) == 2) {
+        do_base64 = 1;
+        break;
+      } else if (sscanf (buf, "begin %o %s", &mode, buf) == 2)
+        break;
+    }
+  }
+
+  /* If the output file name is given on the command line this rules.  */
+  if (forced_outname != NULL)
+    outname = (char *) forced_outname;
+  else {
+    /* Handle ~user/file format.  */
+    if (buf[0] != '~')
+      outname = buf;
+    else {
+      p = buf + 1;
+      while (*p != '/')
+        ++p;
+      if (*p == '\0') {
+        errorMsg("%s: Illegal ~user\n", inname);
+        return FALSE;
+      }
+      *p++ = '\0';
+      pw = getpwnam (buf + 1);
+      if (pw == NULL) {
+        errorMsg("%s: No user `%s'\n", inname, buf + 1);
+        return FALSE;
+      }
+      n = strlen (pw->pw_dir);
+      n1 = strlen (p);
+      outname = (char *) alloca ((size_t) (n + n1 + 2));
+      memcpy (outname + n + 1, p, (size_t) (n1 + 1));
+      memcpy (outname, pw->pw_dir, (size_t) n);
+      outname[n] = '/';
+    }
+  }
+
+  /* Create output file and set mode.  */
+  if (strcmp (outname, "/dev/stdout") != 0 && strcmp (outname, "-") != 0
+      && (freopen (outname, "w", stdout) == NULL
+          || chmod (outname, mode & (S_IRWXU | S_IRWXG | S_IRWXO))
+         )) {
+    errorMsg("uudeoce %s: %s %s\n", outname, inname, strerror(errno)); /* */
+    return FALSE;
+  }
+
+  /* We differenciate decoding standard UU encoding and base64.  A
+     common function would only slow down the program.  */
+
+  /* For each input line:  */
+  if (do_base64)
+    return read_base64 (inname);
+  else
+    return read_stduu (inname);
+}
+
+static const char uudecode_usage[] =
+    "uudecode [FILE]...\n"
+#ifndef BB_FEATURE_TRIVIAL_HELP
+    "\nUudecode a file that is uuencoded.\n\n"
+    "Options:\n"
+    "\t-o FILE\tdirect output to FILE\n"
+#endif
+;
+
+int uudecode_main (int argc,
+                   char **argv)
+{
+  int opt;
+  int exit_status;
+  const char *outname;
+  outname = NULL;
+
+  while ((opt = getopt(argc, argv, "o:")) != EOF) {
+    switch (opt) {
+     case 0:
+      break;
+
+     case 'o':
+      outname = optarg;
+      break;
+
+     default:
+      usage(uudecode_usage);
+    }
+  }
+
+  if (optind == argc)
+    exit_status = decode ("stdin", outname) == 0 ? TRUE : FALSE;
+  else {
+    exit_status = TRUE;
+    do {
+      if (freopen (argv[optind], "r", stdin) != NULL) {
+        if (decode (argv[optind], outname) != 0)
+          exit_status = FALSE;
+      } else {
+        errorMsg("uudecode: %s: %s\n", argv[optind], strerror(errno));
+        exit_status = FALSE;
+      }
+      optind++;
+    }
+    while (optind < argc);
+  }
+  exit(exit_status);
+}