/* GNU Mailutils -- a suite of utilities for electronic mail Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc. GNU Mailutils 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. GNU Mailutils 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 GNU Mailutils; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <unistd.h> #include <stdio.h> #include <assert.h> #include <ctype.h> #include <string.h> #include <mailutils/mailutils.h> #define ISPRINT(c) ((c)>=' '&&(c)<127) int main (int argc, char * argv []) { stream_t in, out, flt; unsigned char buffer; int c, verbose = 0; int printable = 0; size_t size, total = 0; int mode = MU_FILTER_ENCODE; char *input = NULL, *output = NULL; while ((c = getopt (argc, argv, "dehi:o:pv")) != EOF) switch (c) { case 'i': input = optarg; break; case 'o': output = optarg; break; case 'd': mode = MU_FILTER_DECODE; break; case 'e': mode = MU_FILTER_ENCODE; break; case 'p': printable = 1; break; case 'v': verbose = 1; break; case 'h': printf ("usage: base64 [-vpde][-i infile][-o outfile]\n"); exit (0); default: exit (1); } if (input) c = file_stream_create (&in, input, MU_STREAM_READ); else c = stdio_stream_create (&in, stdin, 0); assert (c == 0); assert (filter_create (&flt, in, "base64", mode, MU_STREAM_READ) == 0); assert (stream_open (in) == 0); if (output) c = file_stream_create (&out, output, MU_STREAM_WRITE|MU_STREAM_CREAT); else c = stdio_stream_create (&out, stdout, 0); assert (c == 0); assert (stream_open (out) == 0); while (stream_read (flt, &buffer, sizeof (buffer), total, &size) == 0 && size > 0) { if (printable && !ISPRINT (buffer)) { char outbuf[24]; sprintf (outbuf, "\\%03o", (unsigned int) buffer); stream_sequential_write (out, outbuf, strlen (outbuf)); } else stream_sequential_write (out, &buffer, size); total += size; } stream_sequential_write (out, "\n", 1); stream_close (in); stream_close (out); if (verbose) fprintf (stderr, "total: %lu bytes\n", (unsigned long) total); return 0; }