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/*
* dpkg-split - splitting and joining of multipart *.deb archives
* split.c - splitting archives
*
* Copyright (C) 1995 Ian Jackson <iwj10@cus.cam.ac.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,
* 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 dpkg; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <assert.h>
#include <unistd.h>
#include <string.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "config.h"
#include "dpkg.h"
#include "dpkg-db.h"
#include "dpkg-split.h"
void do_split(const char *const *argv) {
const char *sourcefile, *prefix;
char *palloc;
int l, fd;
char partsizebuf[30], lengthbuf[30], partsizeallowbuf[30];
struct stat stab;
sourcefile= *argv++;
if (!sourcefile)
badusage("--split needs a source filename argument");
prefix= *argv++;
if (prefix && *argv)
badusage("--split takes at most a source filename and destination prefix");
if (!prefix) {
l= strlen(sourcefile);
palloc= nfmalloc(l+1);
strcpy(palloc,sourcefile);
if (!strcmp(palloc+l-(sizeof(DEBEXT)-1),DEBEXT)) {
l -= (sizeof(DEBEXT)-1);
palloc[l]= 0;
}
prefix= palloc;
}
sprintf(partsizebuf,"%ld",maxpartsize-HEADERALLOWANCE);
sprintf(partsizeallowbuf,"%ld",maxpartsize);
fd= open(sourcefile,O_RDONLY);
if (!fd) ohshite("unable to open source file `%.250s'",sourcefile);
if (fstat(fd,&stab)) ohshite("unable to fstat source file");
if (!S_ISREG(stab.st_mode)) ohshit("source file `%.250s' not a plain file",sourcefile);
sprintf(lengthbuf,"%lu",(unsigned long)stab.st_size);
m_dup2(fd,0);
execl(MKSPLITSCRIPT,MKSPLITSCRIPT,
sourcefile,partsizebuf,prefix,lengthbuf,partsizeallowbuf,msdos?"yes":"no",
(char*)0);
ohshite("unable to exec " MKSPLITSCRIPT);
}
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