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rpm2cpio applet by Laurence Anderson

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This commit is contained in:
Glenn L McGrath 2001-06-26 01:19:34 +00:00
parent 6c947d289f
commit f8736d251e
12 changed files with 222 additions and 12 deletions
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1
Config.h
View File

@ -96,6 +96,7 @@
#define BB_RMDIR
//#define BB_RMMOD
//#define BB_ROUTE
//#define BB_RPM2CPIO
//#define BB_RPMUNPACK
#define BB_SED
//#define BB_SETKEYCODES

3
applets.h
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@ -326,6 +326,9 @@
#ifdef BB_ROUTE
APPLET(route, route_main, _BB_DIR_USR_BIN)
#endif
#ifdef BB_RPM2CPIO
APPLET(rpm2cpio, rpm2cpio_main, _BB_DIR_USR_BIN)
#endif
#ifdef BB_RPMUNPACK
APPLET(rpmunpack, rpmunpack_main, _BB_DIR_USR_BIN)
#endif

5
applets/usage.h
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@ -1310,6 +1310,11 @@
#define route_full_usage \
"Edit the kernel's routing tables"
#define rpm2cpio_trivial_usage \
"package.rpm"
#define rpm2cpio_full_usage \
"Outputs a cpio archive of the rpm file."
#define rpmunpack_trivial_usage \
"< package.rpm | gunzip | cpio -idmuv"
#define rpmunpack_full_usage \

92
archival/rpm2cpio.c Normal file
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@ -0,0 +1,92 @@
/* vi: set sw=4 ts=4: */
/*
* Mini rpm2cpio implementation for busybox
*
* Copyright (C) 2001 by Laurence Anderson
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "busybox.h"
#include <netinet/in.h> /* For ntohl & htonl function */
#include <string.h>
#define RPM_MAGIC "\355\253\356\333"
#define RPM_HEADER_MAGIC "\216\255\350"
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
struct rpm_lead {
unsigned char magic[4];
u8 major, minor;
u16 type;
u16 archnum;
char name[66];
u16 osnum;
u16 signature_type;
char reserved[16];
};
struct rpm_header {
char magic[3]; /* 3 byte magic: 0x8e 0xad 0xe8 */
u8 version; /* 1 byte version number */
u32 reserved; /* 4 bytes reserved */
u32 entries; /* Number of entries in header (4 bytes) */
u32 size; /* Size of store (4 bytes) */
};
void skip_header(FILE *rpmfile)
{
struct rpm_header header;
fread(&header, sizeof(struct rpm_header), 1, rpmfile);
if (strncmp((char *) &header.magic, RPM_HEADER_MAGIC, 3) != 0) error_msg_and_die("Invalid RPM header magic"); /* Invalid magic */
if (header.version != 1) error_msg_and_die("Unsupported RPM header version"); /* This program only supports v1 headers */
header.entries = ntohl(header.entries);
header.size = ntohl(header.size);
fseek (rpmfile, 16 * header.entries, SEEK_CUR); /* Seek past index entries */
fseek (rpmfile, header.size, SEEK_CUR); /* Seek past store */
}
/* No getopt required */
extern int rpm2cpio_main(int argc, char **argv)
{
struct rpm_lead lead;
int gunzip_pid;
FILE *rpmfile, *cpiofile;
if (argc == 1) {
rpmfile = stdin;
} else {
rpmfile = fopen(argv[1], "r");
if (!rpmfile) perror_msg_and_die("Can't open rpm file");
}
fread (&lead, sizeof(struct rpm_lead), 1, rpmfile);
if (strncmp((char *) &lead.magic, RPM_MAGIC, 4) != 0) error_msg_and_die("Invalid RPM magic"); /* Just check the magic, the rest is irrelevant */
/* Skip the signature header */
skip_header(rpmfile);
fseek(rpmfile, (8 - (ftell(rpmfile) % 8)) % 8, SEEK_CUR); /* Pad to 8 byte boundary */
/* Skip the main header */
skip_header(rpmfile);
cpiofile = gz_open(rpmfile, &gunzip_pid);
copyfd(fileno(cpiofile), fileno(stdout));
gz_close(gunzip_pid);
fclose(rpmfile);
return 0;
}

11
docs/busybox_header.pod
View File

@ -56,17 +56,18 @@ terse runtime description of their behavior.
Currently defined functions include:
adjtimex, ar, basename, busybox, cat, chgrp, chmod, chown, chroot, chvt, clear,
cmp, cp, cut, date, dc, dd, deallocvt, df, dirname, dmesg, dos2unix, dpkg,
cmp, cp, cpio, cut, date, dc, dd, deallocvt, df, dirname, dmesg, dos2unix, dpkg,
dpkg-deb, du, dumpkmap, dutmp, echo, expr, false, fbset, fdflush, find, free,
freeramdisk, fsck.minix, getopt, grep, gunzip, gzip, halt, head, hostid,
hostname, id, ifconfig, init, insmod, kill, killall, klogd, length, ln,
loadacm, loadfont, loadkmap, logger, logname, ls, lsmod, makedevs, md5sum,
mkdir, mkfifo, mkfs.minix, mknod, mkswap, mktemp, more, mount, mt, mv, nc,
nslookup, ping, pivot_root, poweroff, printf, ps, pwd, rdate, readlink, reboot,
renice, reset, rm, rmdir, rmmod, route, rpmunpack, sed, setkeycodes, sh, sleep,
sort, stty, swapoff, swapon, sync, syslogd, tail, tar, tee, telnet, test, tftp,
touch, tr, true, tty, umount, uname, uniq, unix2dos, update, uptime, usleep,
uudecode, uuencode, watchdog, wc, wget, which, whoami, xargs, yes, zcat, [
renice, reset, rm, rmdir, rmmod, route, rpm2cpio, rpmunpack, sed, setkeycodes,
sh, sleep, sort, stty, swapoff, swapon, sync, syslogd, tail, tar, tee, telnet,
test, tftp, touch, tr, true, tty, umount, uname, uniq, unix2dos, update, uptime,
usleep, uudecode, uuencode, watchdog, wc, wget, which, whoami, xargs, yes, zcat,
[
=over 4

4
examples/unrpm
View File

@ -29,7 +29,7 @@ exist
type more >/dev/null 2>&1 && pager=more
type less >/dev/null 2>&1 && pager=less
[ "$pager" = "" ] && echo "No pager found!" && exit
(echo -e "\nPress enter to scroll, q to Quit!\n" ; rpmunpack < $rpm | gzip -dc | cpio -tv --quiet) | $pager
(echo -e "\nPress enter to scroll, q to Quit!\n" ; rpm2cpio $rpm | cpio -tv --quiet) | $pager
exit
elif [ "$1" = "-x" ]; then
exist
@ -39,7 +39,7 @@ elif [ ! -d "$3" ]; then
echo "No such directory $3!"
exit
fi
rpmunpack < $rpm | gzip -d | (umask 0 ; cd $3 ; cpio -idmuv) || exit
rpm2cpio $rpm | (umask 0 ; cd $3 ; cpio -idmuv) || exit
echo
echo "Extracted $rpm to $3!"
exit

3
include/applets.h
View File

@ -326,6 +326,9 @@
#ifdef BB_ROUTE
APPLET(route, route_main, _BB_DIR_USR_BIN)
#endif
#ifdef BB_RPM2CPIO
APPLET(rpm2cpio, rpm2cpio_main, _BB_DIR_USR_BIN)
#endif
#ifdef BB_RPMUNPACK
APPLET(rpmunpack, rpmunpack_main, _BB_DIR_USR_BIN)
#endif

5
include/usage.h
View File

@ -1310,6 +1310,11 @@
#define route_full_usage \
"Edit the kernel's routing tables"
#define rpm2cpio_trivial_usage \
"package.rpm"
#define rpm2cpio_full_usage \
"Outputs a cpio archive of the rpm file."
#define rpmunpack_trivial_usage \
"< package.rpm | gunzip | cpio -idmuv"
#define rpmunpack_full_usage \

92
rpm2cpio.c Normal file
View File

@ -0,0 +1,92 @@
/* vi: set sw=4 ts=4: */
/*
* Mini rpm2cpio implementation for busybox
*
* Copyright (C) 2001 by Laurence Anderson
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "busybox.h"
#include <netinet/in.h> /* For ntohl & htonl function */
#include <string.h>
#define RPM_MAGIC "\355\253\356\333"
#define RPM_HEADER_MAGIC "\216\255\350"
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
struct rpm_lead {
unsigned char magic[4];
u8 major, minor;
u16 type;
u16 archnum;
char name[66];
u16 osnum;
u16 signature_type;
char reserved[16];
};
struct rpm_header {
char magic[3]; /* 3 byte magic: 0x8e 0xad 0xe8 */
u8 version; /* 1 byte version number */
u32 reserved; /* 4 bytes reserved */
u32 entries; /* Number of entries in header (4 bytes) */
u32 size; /* Size of store (4 bytes) */
};
void skip_header(FILE *rpmfile)
{
struct rpm_header header;
fread(&header, sizeof(struct rpm_header), 1, rpmfile);
if (strncmp((char *) &header.magic, RPM_HEADER_MAGIC, 3) != 0) error_msg_and_die("Invalid RPM header magic"); /* Invalid magic */
if (header.version != 1) error_msg_and_die("Unsupported RPM header version"); /* This program only supports v1 headers */
header.entries = ntohl(header.entries);
header.size = ntohl(header.size);
fseek (rpmfile, 16 * header.entries, SEEK_CUR); /* Seek past index entries */
fseek (rpmfile, header.size, SEEK_CUR); /* Seek past store */
}
/* No getopt required */
extern int rpm2cpio_main(int argc, char **argv)
{
struct rpm_lead lead;
int gunzip_pid;
FILE *rpmfile, *cpiofile;
if (argc == 1) {
rpmfile = stdin;
} else {
rpmfile = fopen(argv[1], "r");
if (!rpmfile) perror_msg_and_die("Can't open rpm file");
}
fread (&lead, sizeof(struct rpm_lead), 1, rpmfile);
if (strncmp((char *) &lead.magic, RPM_MAGIC, 4) != 0) error_msg_and_die("Invalid RPM magic"); /* Just check the magic, the rest is irrelevant */
/* Skip the signature header */
skip_header(rpmfile);
fseek(rpmfile, (8 - (ftell(rpmfile) % 8)) % 8, SEEK_CUR); /* Pad to 8 byte boundary */
/* Skip the main header */
skip_header(rpmfile);
cpiofile = gz_open(rpmfile, &gunzip_pid);
copyfd(fileno(cpiofile), fileno(stdout));
gz_close(gunzip_pid);
fclose(rpmfile);
return 0;
}

4
scripts/unrpm
View File

@ -29,7 +29,7 @@ exist
type more >/dev/null 2>&1 && pager=more
type less >/dev/null 2>&1 && pager=less
[ "$pager" = "" ] && echo "No pager found!" && exit
(echo -e "\nPress enter to scroll, q to Quit!\n" ; rpmunpack < $rpm | gzip -dc | cpio -tv --quiet) | $pager
(echo -e "\nPress enter to scroll, q to Quit!\n" ; rpm2cpio $rpm | cpio -tv --quiet) | $pager
exit
elif [ "$1" = "-x" ]; then
exist
@ -39,7 +39,7 @@ elif [ ! -d "$3" ]; then
echo "No such directory $3!"
exit
fi
rpmunpack < $rpm | gzip -d | (umask 0 ; cd $3 ; cpio -idmuv) || exit
rpm2cpio $rpm | (umask 0 ; cd $3 ; cpio -idmuv) || exit
echo
echo "Extracted $rpm to $3!"
exit

3
tests/testcases
View File

@ -292,6 +292,8 @@ touch F ; rm F
# XXX: doesn't DNS resolve
route
# rpm2cpio
# rpmunpack
# sed - we can do some one-liners here, some testing is a little
@ -401,3 +403,4 @@ ls -1 ../e* | xargs
ls -1 ../e* | xargs md5sum
# yes - can't test: interactive (needs ^C)

5
usage.h
View File

@ -1310,6 +1310,11 @@
#define route_full_usage \
"Edit the kernel's routing tables"
#define rpm2cpio_trivial_usage \
"package.rpm"
#define rpm2cpio_full_usage \
"Outputs a cpio archive of the rpm file."
#define rpmunpack_trivial_usage \
"< package.rpm | gunzip | cpio -idmuv"
#define rpmunpack_full_usage \