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/*
* dpkg-split - splitting and joining of multipart *.deb archives
* join.c - joining
*
* Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
*
* This 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 of the License, or
* (at your option) any later version.
*
* This 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 <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <compat.h>
#include <limits.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <dpkg/i18n.h>
#include <dpkg/dpkg.h>
#include <dpkg/dpkg-db.h>
#include <dpkg/buffer.h>
#include <dpkg/options.h>
#include "dpkg-split.h"
void reassemble(struct partinfo **partlist, const char *outputfile) {
struct dpkg_error err;
int fd_out, fd_in;
int i;
printf(P_("Putting package %s together from %d part: ",
"Putting package %s together from %d parts: ",
partlist[0]->maxpartn),
partlist[0]->package,partlist[0]->maxpartn);
fd_out = creat(outputfile, 0644);
if (fd_out < 0)
ohshite(_("unable to open output file '%.250s'"), outputfile);
for (i=0; i<partlist[0]->maxpartn; i++) {
struct partinfo *pi = partlist[i];
fd_in = open(pi->filename, O_RDONLY);
if (fd_in < 0)
ohshite(_("unable to (re)open input part file '%.250s'"), pi->filename);
if (fd_skip(fd_in, pi->headerlen, &err) < 0)
ohshit(_("cannot skip split package header for '%s': %s"), pi->filename,
err.str);
if (fd_fd_copy(fd_in, fd_out, pi->thispartlen, &err) < 0)
ohshit(_("cannot append split package part '%s' to '%s': %s"),
pi->filename, outputfile, err.str);
close(fd_in);
printf("%d ", i + 1);
}
if (fsync(fd_out))
ohshite(_("unable to sync file '%s'"), outputfile);
if (close(fd_out))
ohshite(_("unable to close file '%s'"), outputfile);
printf(_("done\n"));
}
void addtopartlist(struct partinfo **partlist,
struct partinfo *pi, struct partinfo *refi) {
int i;
if (strcmp(pi->package,refi->package) ||
strcmp(pi->version,refi->version) ||
strcmp(pi->md5sum,refi->md5sum) ||
pi->orglength != refi->orglength ||
pi->maxpartn != refi->maxpartn ||
pi->maxpartlen != refi->maxpartlen) {
print_info(pi);
print_info(refi);
ohshit(_("files '%.250s' and '%.250s' are not parts of the same file"),
pi->filename,refi->filename);
}
i= pi->thispartn-1;
if (partlist[i])
ohshit(_("there are several versions of part %d - at least '%.250s' and '%.250s'"),
pi->thispartn, pi->filename, partlist[i]->filename);
partlist[i]= pi;
}
int
do_join(const char *const *argv)
{
const char *thisarg;
struct partqueue *queue = NULL;
struct partqueue *pq;
struct partinfo *refi, **partlist;
int i;
if (!*argv)
badusage(_("--%s requires one or more part file arguments"),
cipaction->olong);
while ((thisarg= *argv++)) {
pq = nfmalloc(sizeof(*pq));
mustgetpartinfo(thisarg,&pq->info);
pq->nextinqueue= queue;
queue= pq;
}
refi= NULL;
for (pq= queue; pq; pq= pq->nextinqueue)
if (!refi || pq->info.thispartn < refi->thispartn) refi= &pq->info;
if (refi == NULL)
internerr("empty deb part queue");
partlist = nfmalloc(sizeof(*partlist) * refi->maxpartn);
for (i = 0; i < refi->maxpartn; i++)
partlist[i] = NULL;
for (pq= queue; pq; pq= pq->nextinqueue) {
struct partinfo *pi = &pq->info;
addtopartlist(partlist,pi,refi);
}
for (i=0; i<refi->maxpartn; i++) {
if (!partlist[i]) ohshit(_("part %d is missing"),i+1);
}
if (!opt_outputfile) {
char *p;
p= nfmalloc(strlen(refi->package)+1+strlen(refi->version)+sizeof(DEBEXT));
strcpy(p,refi->package);
strcat(p, "_");
strcat(p,refi->version);
strcat(p, "_");
strcat(p, refi->arch ? refi->arch : "unknown");
strcat(p,DEBEXT);
opt_outputfile = p;
}
reassemble(partlist, opt_outputfile);
return 0;
}
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