pipe.c
1.74 KB
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/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2001 Free Software Foundation, Inc.
This program 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 program 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 program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "mail.h"
/*
* pi[pe] [[msglist] command]
* | [[msglist] command]
*/
int
mail_pipe (int argc, char **argv)
{
message_t msg;
stream_t stream;
char *cmd;
FILE *pipe;
msgset_t *list, *mp;
char buffer[512];
off_t off = 0;
size_t n = 0;
if (argc > 1)
cmd = argv[--argc];
else if ((util_find_env ("cmd"))->set)
cmd = (util_find_env ("cmd"))->value;
else
return 1;
if (msgset_parse (argc, argv, &list))
return 1;
pipe = popen (cmd, "w");
for (mp = list; mp; mp = mp->next)
{
if (mailbox_get_message (mbox, mp->msg_part[0], &msg) == 0)
{
message_get_stream (msg, &stream);
off = 0;
while (stream_read (stream, buffer, sizeof (buffer) - 1, off,
&n) == 0 && n != 0)
{
buffer[n] = '\0';
fprintf (pipe, "%s", buffer);
off += n;
}
if ((util_find_env("page"))->set && mp->next)
fprintf (pipe, "\f\n");
}
}
msgset_free (list);
pclose (pipe);
return 0;
}