xbps/bin/xbps-rindex/repoflush.c

98 lines
2.9 KiB
C

/*-
* Copyright (c) 2013-2015 Juan Romero Pardines.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/stat.h>
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <dirent.h>
#include <libgen.h>
#include <assert.h>
#include <fcntl.h>
#include <xbps.h>
#include "defs.h"
bool
repodata_flush(struct xbps_handle *xhp, const char *repodir,
xbps_dictionary_t idx, xbps_dictionary_t meta)
{
struct archive *ar;
char *repofile, *tname, *buf;
int rv, repofd = -1;
mode_t mask;
/* Create a tempfile for our repository archive */
repofile = xbps_repo_path(xhp, repodir);
tname = xbps_xasprintf("%s.XXXXXXXXXX", repofile);
mask = umask(S_IXUSR|S_IRWXG|S_IRWXO);
if ((repofd = mkstemp(tname)) == -1)
return false;
umask(mask);
/* Create and write our repository archive */
ar = archive_write_new();
assert(ar);
archive_write_set_compression_gzip(ar);
archive_write_set_format_pax_restricted(ar);
archive_write_set_options(ar, "compression-level=9");
archive_write_open_fd(ar, repofd);
/* XBPS_REPOIDX */
buf = xbps_dictionary_externalize(idx);
assert(buf);
rv = xbps_archive_append_buf(ar, buf, strlen(buf),
XBPS_REPOIDX, 0644, "root", "root");
free(buf);
if (rv != 0)
return false;
/* XBPS_REPOIDX_META */
if (meta == NULL) {
/* fake entry */
buf = strdup("DEADBEEF");
} else {
buf = xbps_dictionary_externalize(meta);
}
rv = xbps_archive_append_buf(ar, buf, strlen(buf),
XBPS_REPOIDX_META, 0644, "root", "root");
free(buf);
if (rv != 0)
return false;
/* Write data to tempfile and rename */
archive_write_finish(ar);
fdatasync(repofd);
assert(fchmod(repofd, 0664) != -1);
close(repofd);
rename(tname, repofile);
free(repofile);
free(tname);
return true;
}