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/* $Id$ */
/*
* Copyright (c) 2006 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "fdm.h"
#include "fetch.h"
void fetch_stdin_abort(struct account *);
u_int fetch_stdin_total(struct account *);
void fetch_stdin_desc(struct account *, char *, size_t);
int fetch_stdin_state_init(struct account *, struct fetch_ctx *);
int fetch_stdin_state_mail(struct account *, struct fetch_ctx *);
int fetch_stdin_state_exit(struct account *, struct fetch_ctx *);
struct fetch fetch_stdin = {
"stdin",
fetch_stdin_state_init,
NULL,
NULL,
fetch_stdin_abort,
NULL,
fetch_stdin_desc
};
/* Abort; close stdin. */
void
fetch_stdin_abort(unused struct account *a)
{
close(STDIN_FILENO);
}
/* Initialise stdin fetch. */
int
fetch_stdin_state_init(struct account *a, struct fetch_ctx *fctx)
{
/* Check stdin is valid. */
if (isatty(STDIN_FILENO)) {
log_warnx("%s: stdin is a tty. ignoring", a->name);
return (FETCH_ERROR);
}
if (fcntl(STDIN_FILENO, F_GETFL) == -1) {
if (errno != EBADF)
fatal("fcntl failed");
log_warnx("%s: stdin is invalid", a->name);
return (FETCH_ERROR);
}
fctx->state = fetch_stdin_state_mail;
return (FETCH_AGAIN);
}
/* Fetch mail from stdin. */
int
fetch_stdin_state_mail(struct account *a, struct fetch_ctx *fctx)
{
struct mail *m = fctx->mail;
struct io *io;
char *line, *cause;
/* Open io for stdin. */
io = io_create(STDIN_FILENO, NULL, IO_LF);
if (conf.debug > 3 && !conf.syslog)
io->dup_fd = STDOUT_FILENO;
/* Initialise the mail. */
if (mail_open(m, IO_BLOCKSIZE) != 0) {
log_warn("%s: failed to create mail", a->name);
goto error;
}
m->size = 0;
/* Add default tags. */
default_tags(&m->tags, NULL);
/* Loop reading the mail. */
for (;;) {
/*
* There can only be one mail on stdin so reentrancy is
* irrelevent. This is a good thing since we want to check for
* close which means end of mail.
*/
switch (io_pollline2(io,
&line, &fctx->lbuf, &fctx->llen, conf.timeout, &cause)) {
case 0:
/* Normal close is fine. */
goto out;
case -1:
if (errno == EAGAIN)
continue;
log_warnx("%s: %s", a->name, cause);
xfree(cause);
goto error;
}
if (append_line(m, line, strlen(line)) != 0) {
log_warn("%s: failed to resize mail", a->name);
goto error;
}
if (m->size > conf.max_size)
break;
}
out:
if (io != NULL)
io_free(io);
fctx->state = fetch_stdin_state_exit;
return (FETCH_MAIL);
error:
if (io != NULL)
io_free(io);
return (FETCH_ERROR);
}
/* Fetch finished; return exit. */
int
fetch_stdin_state_exit(unused struct account *a, unused struct fetch_ctx *fctx)
{
close(STDIN_FILENO);
return (FETCH_EXIT);
}
void
fetch_stdin_desc(unused struct account *a, char *buf, size_t len)
{
strlcpy(buf, "stdin", len);
}
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