diff options
Diffstat (limited to 'examples/mucat.c')
-rw-r--r-- | examples/mucat.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/examples/mucat.c b/examples/mucat.c new file mode 100644 index 000000000..b8cb314f7 --- /dev/null +++ b/examples/mucat.c @@ -0,0 +1,87 @@ +/* GNU Mailutils -- a suite of utilities for electronic mail + Copyright (C) 1999, 2000, 2001, 2002, 2005, 2007, 2010 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 3, 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., 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301 USA */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif +#include <unistd.h> +#include <stdio.h> +#include <assert.h> +#include <ctype.h> +#include <string.h> +#include <mailutils/mailutils.h> + +int +main (int argc, char * argv []) +{ + int c; + mu_stream_t in, out; + int reread_option = 0; + mu_off_t reread_off; + int skip_option = 0; + mu_off_t skip_off; + + while ((c = getopt (argc, argv, "hs:r:")) != EOF) + switch (c) + { + case 'r': + reread_option = 1; + reread_off = strtoul (optarg, NULL, 10); + break; + + case 's': + skip_option = 1; + skip_off = strtoul (optarg, NULL, 10); + break; + + case 'h': + printf ("usage: cat [-s off]\n"); + exit (0); + + default: + exit (1); + } + + + MU_ASSERT (mu_stdio_stream_create (&in, MU_STDIN_FD, MU_STREAM_SEEK)); + MU_ASSERT (mu_stdio_stream_create (&out, MU_STDOUT_FD, 0)); + + if (skip_option) + { + mu_stream_printf (out, "skipping to %lu:\n", + (unsigned long) skip_off); + MU_ASSERT (mu_stream_seek (in, skip_off, MU_SEEK_SET, NULL)); + } + + MU_ASSERT (mu_stream_copy (out, in, 0)); + + if (reread_option) + { + mu_stream_printf (out, "rereading from %lu:\n", + (unsigned long) reread_off); + MU_ASSERT (mu_stream_seek (in, reread_off, MU_SEEK_SET, NULL)); + MU_ASSERT (mu_stream_copy (out, in, 0)); + } + + mu_stream_close (in); + mu_stream_destroy (&in); + mu_stream_close (out); + mu_stream_destroy (&out); + return 0; +} |