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| | /* notmuch - Not much of an email program, (just index and search)
*
* Copyright © 2013 Peter Wang
*
* 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 3 of the License, 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, see http://www.gnu.org/licenses/ .
*
* Author: Peter Wang <novalazy@gmail.com>
*/
#include "notmuch-client.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
/* Like gethostname but guarantees that a null-terminated hostname is
* returned, even if it has to make one up.
* Returns true unless hostname contains a slash. */
static notmuch_bool_t
safe_gethostname (char *hostname, size_t len)
{
if (gethostname (hostname, len) == -1) {
strncpy (hostname, "unknown", len);
}
hostname[len - 1] = '\0';
return (strchr (hostname, '/') == NULL);
}
/* Open a unique file in the Maildir 'tmp' directory.
* Returns the file descriptor on success, or -1 on failure.
* On success, file paths for the message in the 'tmp' and 'new'
* directories are returned via tmppath and newpath. */
static int
maildir_open_tmp_file (void *ctx, const char *dir,
char **tmppath, char **newpath)
{
pid_t pid;
char hostname[256];
struct timeval tv;
char *filename;
int fd = -1;
/* We follow the Dovecot file name generation algorithm. */
pid = getpid ();
if (! safe_gethostname (hostname, sizeof (hostname))) {
fprintf (stderr, "Error: invalid host name.\n");
return -1;
}
do {
gettimeofday (&tv, NULL);
filename = talloc_asprintf (ctx, "%ld.M%ldP%d.%s",
tv.tv_sec, tv.tv_usec, pid, hostname);
if (! filename) {
fprintf (stderr, "Out of memory\n");
return -1;
}
*tmppath = talloc_asprintf (ctx, "%s/tmp/%s", dir, filename);
if (! *tmppath) {
fprintf (stderr, "Out of memory\n");
return -1;
}
fd = open (*tmppath, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600);
} while (fd == -1 && errno == EEXIST);
if (fd == -1) {
fprintf (stderr, "Error: opening %s: %s\n", *tmppath, strerror (errno));
return -1;
}
*newpath = talloc_asprintf (ctx, "%s/new/%s", dir, filename);
if (! *newpath) {
fprintf (stderr, "Out of memory\n");
close (fd);
unlink (*tmppath);
return -1;
}
talloc_free (filename);
return fd;
}
static notmuch_bool_t
insert_message (void *ctx, notmuch_database_t *notmuch, int fdin,
const char *dir)
{
char *tmppath;
char *newpath;
int fdout;
fdout = maildir_open_tmp_file (ctx, dir, &tmppath, &newpath);
if (fdout < 0) {
return FALSE;
}
/* For now we just delete the tmp file immediately. */
close (fdout);
unlink (tmppath);
return FALSE;
}
int
notmuch_insert_command (void *ctx, int argc, char *argv[])
{
notmuch_config_t *config;
notmuch_database_t *notmuch;
const char *db_path;
char *maildir;
notmuch_bool_t ret;
config = notmuch_config_open (ctx, NULL, NULL);
if (config == NULL)
return 1;
db_path = notmuch_config_get_database_path (config);
maildir = talloc_asprintf (ctx, "%s", db_path);
if (! maildir) {
fprintf (stderr, "Out of memory\n");
return 1;
}
if (notmuch_database_open (notmuch_config_get_database_path (config),
NOTMUCH_DATABASE_MODE_READ_WRITE, ¬much))
return 1;
ret = insert_message (ctx, notmuch, STDIN_FILENO, maildir);
notmuch_database_destroy (notmuch);
return (ret) ? 0 : 1;
}
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