7b4a925302
This fixes issues when writes fail (as example if the disk is full), where xbps would create empty repodata or stagedata archives.
112 lines
3.1 KiB
C
112 lines
3.1 KiB
C
/*-
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* Copyright (c) 2008-2014 Juan Romero Pardines.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "xbps_api_impl.h"
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char HIDDEN *
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xbps_archive_get_file(struct archive *ar, struct archive_entry *entry)
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{
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size_t buflen;
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ssize_t nbytes = -1;
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char *buf;
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assert(ar != NULL);
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assert(entry != NULL);
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buflen = (size_t)archive_entry_size(entry);
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buf = malloc(buflen+1);
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if (buf == NULL)
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return NULL;
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nbytes = archive_read_data(ar, buf, buflen);
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if ((size_t)nbytes != buflen) {
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free(buf);
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return NULL;
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}
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buf[buflen] = '\0';
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return buf;
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}
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xbps_dictionary_t HIDDEN
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xbps_archive_get_dictionary(struct archive *ar, struct archive_entry *entry)
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{
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xbps_dictionary_t d = NULL;
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char *buf;
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if ((buf = xbps_archive_get_file(ar, entry)) == NULL)
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return NULL;
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/* If blob is already a dictionary we are done */
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d = xbps_dictionary_internalize(buf);
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free(buf);
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return d;
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}
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int
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xbps_archive_append_buf(struct archive *ar, const void *buf, const size_t buflen,
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const char *fname, const mode_t mode, const char *uname, const char *gname)
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{
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struct archive_entry *entry;
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assert(ar);
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assert(buf);
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assert(fname);
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assert(uname);
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assert(gname);
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entry = archive_entry_new();
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if (entry == NULL)
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return archive_errno(ar);
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archive_entry_set_filetype(entry, AE_IFREG);
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archive_entry_set_perm(entry, mode);
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archive_entry_set_uname(entry, uname);
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archive_entry_set_gname(entry, gname);
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archive_entry_set_pathname(entry, fname);
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archive_entry_set_size(entry, buflen);
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if (archive_write_header(ar, entry) != ARCHIVE_OK) {
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archive_entry_free(entry);
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return archive_errno(ar);
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}
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if (archive_write_data(ar, buf, buflen) != ARCHIVE_OK) {
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archive_entry_free(entry);
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return archive_errno(ar);
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}
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if (archive_write_finish_entry(ar) != ARCHIVE_OK) {
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archive_entry_free(entry);
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return archive_errno(ar);
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}
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archive_entry_free(entry);
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return 0;
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}
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