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rpm applet by Laurence Anderson

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This commit is contained in:
Glenn L McGrath 2002-12-10 00:17:22 +00:00
parent 62fae308a3
commit b72a735a32
11 changed files with 565 additions and 162 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
AUTHORS
View File

@ -16,7 +16,7 @@ Erik Andersen <andersen@codepoet.org>, <andersee@debian.org>
core apps, tons of new apps as noted in header files.
Laurence Anderson <l.d.anderson@warwick.ac.uk>
rpm2cpio, unzip, get_header_cpio, read_gz interface
rpm2cpio, unzip, get_header_cpio, read_gz interface, rpm
Edward Betts <edward@debian.org>
expr, hostid, logname, tty, wc, whoami, yes

8
archival/Config.in
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@ -139,7 +139,13 @@ config CONFIG_RPM2CPIO
bool "rpm2cpio"
default n
help
Please submit a patch to add help text for this item.
Converts an RPM file into a CPIO archive.
config CONFIG_RPM
bool "rpm"
default n
help
Mini RPM applet - querys and extracts
config CONFIG_TAR
bool "tar"

1
archival/Makefile.in
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@ -32,6 +32,7 @@ ARCHIVAL-$(CONFIG_DPKG_DEB) += dpkg_deb.o
ARCHIVAL-$(CONFIG_GUNZIP) += gunzip.o
ARCHIVAL-$(CONFIG_GZIP) += gzip.o
ARCHIVAL-$(CONFIG_RPM2CPIO) += rpm2cpio.o
ARCHIVAL-$(CONFIG_RPM) += rpm.o
ARCHIVAL-$(CONFIG_TAR) += tar.o
ARCHIVAL-$(CONFIG_UNCOMPRESS) += uncompress.o
ARCHIVAL-$(CONFIG_UNZIP) += unzip.o

160
archival/cpio.c
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@ -31,12 +31,6 @@
#include "unarchive.h"
#include "busybox.h"
typedef struct hardlinks_s {
file_header_t *entry;
int inode;
struct hardlinks_s *next;
} hardlinks_t;
extern int cpio_main(int argc, char **argv)
{
archive_handle_t *archive_handle;
@ -83,159 +77,7 @@ extern int cpio_main(int argc, char **argv)
optind++;
}
while (1) {
static hardlinks_t *saved_hardlinks = NULL;
static unsigned short pending_hardlinks = 0;
file_header_t *file_header = archive_handle->file_header;
char cpio_header[110];
int namesize;
char dummy[16];
int major, minor, nlink, inode;
char extract_flag;
if (pending_hardlinks) { /* Deal with any pending hardlinks */
hardlinks_t *tmp;
hardlinks_t *oldtmp;
tmp = saved_hardlinks;
oldtmp = NULL;
while (tmp) {
error_msg_and_die("need to fix this\n");
if (tmp->entry->link_name) { /* Found a hardlink ready to be extracted */
file_header = tmp->entry;
if (oldtmp) {
oldtmp->next = tmp->next; /* Remove item from linked list */
} else {
saved_hardlinks = tmp->next;
}
free(tmp);
continue;
}
oldtmp = tmp;
tmp = tmp->next;
}
pending_hardlinks = 0; /* No more pending hardlinks, read next file entry */
}
/* There can be padding before archive header */
data_align(archive_handle, 4);
if (archive_xread_all_eof(archive_handle, cpio_header, 110) == 0) {
return(EXIT_FAILURE);
}
archive_handle->offset += 110;
if (strncmp(&cpio_header[0], "07070", 5) != 0) {
printf("cpio header is %x-%x-%x-%x-%x\n",
cpio_header[0],
cpio_header[1],
cpio_header[2],
cpio_header[3],
cpio_header[4]);
error_msg_and_die("Unsupported cpio format");
}
if ((cpio_header[5] != '1') && (cpio_header[5] != '2')) {
error_msg_and_die("Unsupported cpio format, use newc or crc");
}
sscanf(cpio_header, "%6c%8x%8x%8x%8x%8x%8lx%8lx%16c%8x%8x%8x%8c",
dummy, &inode, (unsigned int*)&file_header->mode,
(unsigned int*)&file_header->uid, (unsigned int*)&file_header->gid,
&nlink, &file_header->mtime, &file_header->size,
dummy, &major, &minor, &namesize, dummy);
file_header->name = (char *) xmalloc(namesize + 1);
archive_xread_all(archive_handle, file_header->name, namesize); /* Read in filename */
file_header->name[namesize] = '\0';
archive_handle->offset += namesize;
/* Update offset amount and skip padding before file contents */
data_align(archive_handle, 4);
if (strcmp(file_header->name, "TRAILER!!!") == 0) {
printf("%d blocks\n", (int) (archive_handle->offset % 512 ? (archive_handle->offset / 512) + 1 : archive_handle->offset / 512)); /* Always round up */
if (saved_hardlinks) { /* Bummer - we still have unresolved hardlinks */
hardlinks_t *tmp = saved_hardlinks;
hardlinks_t *oldtmp = NULL;
while (tmp) {
error_msg("%s not created: cannot resolve hardlink", tmp->entry->name);
oldtmp = tmp;
tmp = tmp->next;
free (oldtmp->entry->name);
free (oldtmp->entry);
free (oldtmp);
}
saved_hardlinks = NULL;
pending_hardlinks = 0;
}
return(EXIT_FAILURE);
}
if (S_ISLNK(file_header->mode)) {
file_header->link_name = (char *) xmalloc(file_header->size + 1);
archive_xread_all(archive_handle, file_header->link_name, file_header->size);
file_header->link_name[file_header->size] = '\0';
archive_handle->offset += file_header->size;
file_header->size = 0; /* Stop possible seeks in future */
}
if (nlink > 1 && !S_ISDIR(file_header->mode)) {
if (file_header->size == 0) { /* Put file on a linked list for later */
hardlinks_t *new = xmalloc(sizeof(hardlinks_t));
new->next = saved_hardlinks;
new->inode = inode;
new->entry = file_header;
saved_hardlinks = new;
continue;
} else { /* Found the file with data in */
hardlinks_t *tmp = saved_hardlinks;
pending_hardlinks = 1;
while (tmp) {
if (tmp->inode == inode) {
tmp->entry->link_name = xstrdup(file_header->name);
nlink--;
}
tmp = tmp->next;
}
if (nlink > 1) {
error_msg("error resolving hardlink: did you create the archive with GNU cpio 2.0-2.2?");
}
}
}
file_header->device = (major << 8) | minor;
extract_flag = FALSE;
if (archive_handle->filter(archive_handle) == EXIT_SUCCESS) {
struct stat statbuf;
extract_flag = TRUE;
/* Check if the file already exists */
if (lstat (file_header->name, &statbuf) == 0) {
if ((archive_handle->flags & ARCHIVE_EXTRACT_UNCONDITIONAL) || (statbuf.st_mtime < file_header->mtime)) {
/* Remove file if flag set or its older than the file to be extracted */
if (unlink(file_header->name) == -1) {
perror_msg_and_die("Couldnt remove old file");
}
} else {
if (! archive_handle->flags & ARCHIVE_EXTRACT_QUIET) {
error_msg("%s not created: newer or same age file exists", file_header->name);
}
extract_flag = FALSE;
}
}
archive_handle->action_header(file_header);
}
archive_handle->action_header(file_header);
if (extract_flag) {
archive_handle->action_data(archive_handle);
} else {
data_skip(archive_handle);
}
archive_handle->offset += file_header->size;
}
while (get_header_cpio(archive_handle) == EXIT_SUCCESS);
return(EXIT_SUCCESS);
}

1
archival/libunarchive/Makefile.in
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@ -35,6 +35,7 @@ LIBUNARCHIVE-y:= \
filter_accept_reject_list.o \
\
get_header_ar.o \
get_header_cpio.o \
get_header_tar.o \
get_header_tar_bz2.o \
get_header_tar_gz.o \

2
archival/libunarchive/data_extract_all.c
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@ -43,7 +43,7 @@ extern void data_extract_all(archive_handle_t *archive_handle)
switch(file_header->mode & S_IFMT) {
case S_IFREG: {
#ifdef CONFIG_CPIO
if (file_header->link_name) {
if (file_header->link_name && file_header->size == 0) {
/* hard link */
res = link(file_header->link_name, file_header->name);
if ((res == -1) && !(archive_handle->flags & ARCHIVE_EXTRACT_QUIET)) {

185
archival/libunarchive/get_header_cpio.c Normal file
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@ -0,0 +1,185 @@
/*
* 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 Library 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "unarchive.h"
#include "libbb.h"
typedef struct hardlinks_s {
file_header_t *entry;
int inode;
struct hardlinks_s *next;
} hardlinks_t;
extern char get_header_cpio(archive_handle_t *archive_handle)
{
static hardlinks_t *saved_hardlinks = NULL;
static unsigned short pending_hardlinks = 0;
file_header_t *file_header = archive_handle->file_header;
char cpio_header[110];
int namesize;
char dummy[16];
int major, minor, nlink, inode;
char extract_flag;
if (pending_hardlinks) { /* Deal with any pending hardlinks */
hardlinks_t *tmp;
hardlinks_t *oldtmp;
tmp = saved_hardlinks;
oldtmp = NULL;
while (tmp) {
error_msg_and_die("need to fix this\n");
if (tmp->entry->link_name) { /* Found a hardlink ready to be extracted */
file_header = tmp->entry;
if (oldtmp) {
oldtmp->next = tmp->next; /* Remove item from linked list */
} else {
saved_hardlinks = tmp->next;
}
free(tmp);
continue;
}
oldtmp = tmp;
tmp = tmp->next;
}
pending_hardlinks = 0; /* No more pending hardlinks, read next file entry */
}
/* There can be padding before archive header */
data_align(archive_handle, 4);
if (archive_xread_all_eof(archive_handle, cpio_header, 110) == 0) {
return(EXIT_FAILURE);
}
archive_handle->offset += 110;
if (strncmp(&cpio_header[0], "07070", 5) != 0) {
printf("cpio header is %x-%x-%x-%x-%x\n",
cpio_header[0],
cpio_header[1],
cpio_header[2],
cpio_header[3],
cpio_header[4]);
error_msg_and_die("Unsupported cpio format");
}
if ((cpio_header[5] != '1') && (cpio_header[5] != '2')) {
error_msg_and_die("Unsupported cpio format, use newc or crc");
}
sscanf(cpio_header, "%6c%8x%8x%8x%8x%8x%8lx%8lx%16c%8x%8x%8x%8c",
dummy, &inode, (unsigned int*)&file_header->mode,
(unsigned int*)&file_header->uid, (unsigned int*)&file_header->gid,
&nlink, &file_header->mtime, &file_header->size,
dummy, &major, &minor, &namesize, dummy);
file_header->name = (char *) xmalloc(namesize + 1);
archive_xread_all(archive_handle, file_header->name, namesize); /* Read in filename */
file_header->name[namesize] = '\0';
archive_handle->offset += namesize;
/* Update offset amount and skip padding before file contents */
data_align(archive_handle, 4);
if (strcmp(file_header->name, "TRAILER!!!") == 0) {
printf("%d blocks\n", (int) (archive_handle->offset % 512 ? (archive_handle->offset / 512) + 1 : archive_handle->offset / 512)); /* Always round up */
if (saved_hardlinks) { /* Bummer - we still have unresolved hardlinks */
hardlinks_t *tmp = saved_hardlinks;
hardlinks_t *oldtmp = NULL;
while (tmp) {
error_msg("%s not created: cannot resolve hardlink", tmp->entry->name);
oldtmp = tmp;
tmp = tmp->next;
free (oldtmp->entry->name);
free (oldtmp->entry);
free (oldtmp);
}
saved_hardlinks = NULL;
pending_hardlinks = 0;
}
return(EXIT_FAILURE);
}
if (S_ISLNK(file_header->mode)) {
file_header->link_name = (char *) xmalloc(file_header->size + 1);
archive_xread_all(archive_handle, file_header->link_name, file_header->size);
file_header->link_name[file_header->size] = '\0';
archive_handle->offset += file_header->size;
file_header->size = 0; /* Stop possible seeks in future */
}
if (nlink > 1 && !S_ISDIR(file_header->mode)) {
if (file_header->size == 0) { /* Put file on a linked list for later */
hardlinks_t *new = xmalloc(sizeof(hardlinks_t));
new->next = saved_hardlinks;
new->inode = inode;
new->entry = file_header;
saved_hardlinks = new;
return(EXIT_SUCCESS); // Skip this one
} else { /* Found the file with data in */
hardlinks_t *tmp = saved_hardlinks;
pending_hardlinks = 1;
while (tmp) {
if (tmp->inode == inode) {
tmp->entry->link_name = xstrdup(file_header->name);
nlink--;
}
tmp = tmp->next;
}
if (nlink > 1) {
error_msg("error resolving hardlink: did you create the archive with GNU cpio 2.0-2.2?");
}
}
}
file_header->device = (major << 8) | minor;
extract_flag = FALSE;
if (archive_handle->filter(archive_handle) == EXIT_SUCCESS) {
struct stat statbuf;
extract_flag = TRUE;
/* Check if the file already exists */
if (lstat (file_header->name, &statbuf) == 0) {
if ((archive_handle->flags & ARCHIVE_EXTRACT_UNCONDITIONAL) || (statbuf.st_mtime < file_header->mtime)) {
/* Remove file if flag set or its older than the file to be extracted */
if (unlink(file_header->name) == -1) {
perror_msg_and_die("Couldnt remove old file");
}
} else {
if (! archive_handle->flags & ARCHIVE_EXTRACT_QUIET) {
error_msg("%s not created: newer or same age file exists", file_header->name);
}
extract_flag = FALSE;
}
}
archive_handle->action_header(file_header);
}
archive_handle->action_header(file_header);
if (extract_flag) {
archive_handle->action_data(archive_handle);
} else {
data_skip(archive_handle);
}
archive_handle->offset += file_header->size;
return (EXIT_SUCCESS);
}

351
archival/rpm.c Normal file
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@ -0,0 +1,351 @@
/* vi: set sw=4 ts=4: */
/*
* Mini rpm applet for busybox
*
* Copyright (C) 2001,2002 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 "unarchive.h"
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>
#include <fcntl.h>
#include <netinet/in.h> /* For ntohl & htonl function */
#include <string.h> /* For strncmp */
#include <sys/mman.h> /* For mmap */
#include <time.h> /* For ctime */
#define RPM_HEADER_MAGIC "\216\255\350"
#define RPM_CHAR_TYPE 1
#define RPM_INT8_TYPE 2
#define RPM_INT16_TYPE 3
#define RPM_INT32_TYPE 4
/* #define RPM_INT64_TYPE 5 ---- These aren't supported (yet) */
#define RPM_STRING_TYPE 6
#define RPM_BIN_TYPE 7
#define RPM_STRING_ARRAY_TYPE 8
#define RPM_I18NSTRING_TYPE 9
#define RPMTAG_NAME 1000
#define RPMTAG_VERSION 1001
#define RPMTAG_RELEASE 1002
#define RPMTAG_SUMMARY 1004
#define RPMTAG_DESCRIPTION 1005
#define RPMTAG_BUILDTIME 1006
#define RPMTAG_BUILDHOST 1007
#define RPMTAG_SIZE 1009
#define RPMTAG_VENDOR 1011
#define RPMTAG_LICENSE 1014
#define RPMTAG_PACKAGER 1015
#define RPMTAG_GROUP 1016
#define RPMTAG_URL 1020
#define RPMTAG_PREIN 1023
#define RPMTAG_POSTIN 1024
#define RPMTAG_FILEFLAGS 1037
#define RPMTAG_FILEUSERNAME 1039
#define RPMTAG_FILEGROUPNAME 1040
#define RPMTAG_SOURCERPM 1044
#define RPMTAG_PREINPROG 1085
#define RPMTAG_POSTINPROG 1086
#define RPMTAG_PREFIXS 1098
#define RPMTAG_DIRINDEXES 1116
#define RPMTAG_BASENAMES 1117
#define RPMTAG_DIRNAMES 1118
#define RPMFILE_CONFIG (1 << 0)
#define RPMFILE_DOC (1 << 1)
enum rpm_functions_e {
rpm_query = 1,
rpm_install = 2,
rpm_query_info = 4,
rpm_query_package = 8,
rpm_query_list = 16,
rpm_query_list_doc = 32,
rpm_query_list_config = 64
};
typedef struct {
u_int32_t tag; /* 4 byte tag */
u_int32_t type; /* 4 byte type */
u_int32_t offset; /* 4 byte offset */
u_int32_t count; /* 4 byte count */
} rpm_index;
static void *map;
static rpm_index **mytags;
static int tagcount;
void extract_cpio_gz(int fd);
rpm_index **rpm_gettags(int fd, int *num_tags);
int bsearch_rpmtag(const void *key, const void *item);
char *rpm_getstring(int tag, int itemindex);
int rpm_getint(int tag, int itemindex);
int rpm_getcount(int tag);
void exec_script(int progtag, int datatag, char *prefix);
void fileaction_dobackup(char *filename, int fileref);
void fileaction_setowngrp(char *filename, int fileref);
void fileaction_list(char *filename, int itemno);
void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref));
int rpm_main(int argc, char **argv)
{
int opt = 0, func = 0, rpm_fd, offset;
while ((opt = getopt(argc, argv, "iqpldc")) != -1) {
switch (opt) {
case 'i': // First arg: Install mode, with q: Information
if (!func) func |= rpm_install;
else func |= rpm_query_info;
break;
case 'q': // First arg: Query mode
if (!func) func |= rpm_query;
else show_usage();
break;
case 'p': // Query a package
func |= rpm_query_package;
break;
case 'l': // List files in a package
func |= rpm_query_list;
break;
case 'd': // List doc files in a package (implies list)
func |= rpm_query_list;
func |= rpm_query_list_doc;
break;
case 'c': // List config files in a package (implies list)
func |= rpm_query_list;
func |= rpm_query_list_config;
break;
default:
show_usage();
}
}
if (optind == argc) show_usage();
while (optind < argc) {
rpm_fd = xopen(argv[optind], O_RDONLY);
mytags = rpm_gettags(rpm_fd, (int *) &tagcount);
offset = lseek(rpm_fd, 0, SEEK_CUR);
if (!mytags) { printf("Error reading rpm header\n"); exit(-1); }
map = mmap(0, offset > getpagesize() ? (offset + offset % getpagesize()) : getpagesize(), PROT_READ, MAP_SHARED, rpm_fd, 0); // Mimimum is one page
if (func & rpm_install) {
loop_through_files(RPMTAG_BASENAMES, fileaction_dobackup); /* Backup any config files */
extract_cpio_gz(rpm_fd); // Extact the archive
loop_through_files(RPMTAG_BASENAMES, fileaction_setowngrp); /* Set the correct file uid/gid's */
} else if (func & rpm_query && func & rpm_query_package) {
if (!((func & rpm_query_info) || (func & rpm_query_list))) { // If just a straight query, just give package name
printf("%s-%s-%s\n", rpm_getstring(RPMTAG_NAME, 0), rpm_getstring(RPMTAG_VERSION, 0), rpm_getstring(RPMTAG_RELEASE, 0));
}
if (func & rpm_query_info) {
/* Do the nice printout */
time_t bdate_time;
struct tm *bdate;
char bdatestring[50];
printf("Name : %-29sRelocations: %s\n", rpm_getstring(RPMTAG_NAME, 0), rpm_getstring(RPMTAG_PREFIXS, 0) ? rpm_getstring(RPMTAG_PREFIXS, 0) : "(not relocateable)");
printf("Version : %-34sVendor: %s\n", rpm_getstring(RPMTAG_VERSION, 0), rpm_getstring(RPMTAG_VENDOR, 0) ? rpm_getstring(RPMTAG_VENDOR, 0) : "(none)");
bdate_time = rpm_getint(RPMTAG_BUILDTIME, 0);
bdate = localtime((time_t *) &bdate_time);
strftime(bdatestring, 50, "%a %d %b %Y %T %Z", bdate);
printf("Release : %-30sBuild Date: %s\n", rpm_getstring(RPMTAG_RELEASE, 0), bdatestring);
printf("Install date: %-30sBuild Host: %s\n", "(not installed)", rpm_getstring(RPMTAG_BUILDHOST, 0));
printf("Group : %-30sSource RPM: %s\n", rpm_getstring(RPMTAG_GROUP, 0), rpm_getstring(RPMTAG_SOURCERPM, 0));
printf("Size : %-33dLicense: %s\n", rpm_getint(RPMTAG_SIZE, 0), rpm_getstring(RPMTAG_LICENSE, 0));
printf("URL : %s\n", rpm_getstring(RPMTAG_URL, 0));
printf("Summary : %s\n", rpm_getstring(RPMTAG_SUMMARY, 0));
printf("Description :\n%s\n", rpm_getstring(RPMTAG_DESCRIPTION, 0));
}
if (func & rpm_query_list) {
int count, it, flags;
count = rpm_getcount(RPMTAG_BASENAMES);
for (it = 0; it < count; it++) {
flags = rpm_getint(RPMTAG_FILEFLAGS, it);
switch ((func & rpm_query_list_doc) + (func & rpm_query_list_config))
{
case rpm_query_list_doc: if (!(flags & RPMFILE_DOC)) continue; break;
case rpm_query_list_config: if (!(flags & RPMFILE_CONFIG)) continue; break;
case rpm_query_list_doc + rpm_query_list_config: if (!((flags & RPMFILE_CONFIG) || (flags & RPMFILE_DOC))) continue; break;
}
printf("%s%s\n", rpm_getstring(RPMTAG_DIRNAMES, rpm_getint(RPMTAG_DIRINDEXES, it)), rpm_getstring(RPMTAG_BASENAMES, it));
}
}
}
optind++;
free (mytags);
}
return 0;
}
void extract_cpio_gz(int fd) {
archive_handle_t *archive_handle;
unsigned char magic[2];
/* Initialise */
archive_handle = init_handle();
archive_handle->read = read_gz;
archive_handle->seek = seek_by_char;
//archive_handle->action_header = header_list;
archive_handle->action_data = data_extract_all;
archive_handle->flags |= ARCHIVE_PRESERVE_DATE;
archive_handle->flags |= ARCHIVE_CREATE_LEADING_DIRS;
archive_handle->src_fd = fd;
archive_handle->offset = 0;
xread_all(archive_handle->src_fd, &magic, 2);
if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) {
error_msg_and_die("Invalid gzip magic");
}
check_header_gzip(archive_handle->src_fd);
chdir("/"); // Install RPM's to root
GZ_gzReadOpen(archive_handle->src_fd, 0, 0);
while (get_header_cpio(archive_handle) == EXIT_SUCCESS);
GZ_gzReadClose();
check_trailer_gzip(archive_handle->src_fd);
}
rpm_index **rpm_gettags(int fd, int *num_tags)
{
rpm_index **tags = calloc(200, sizeof(struct rpmtag *)); /* We should never need mode than 200, and realloc later */
int pass, tagindex = 0;
lseek(fd, 96, SEEK_CUR); /* Seek past the unused lead */
for (pass = 0; pass < 2; pass++) { /* 1st pass is the signature headers, 2nd is the main stuff */
struct {
char magic[3]; /* 3 byte magic: 0x8e 0xad 0xe8 */
u_int8_t version; /* 1 byte version number */
u_int32_t reserved; /* 4 bytes reserved */
u_int32_t entries; /* Number of entries in header (4 bytes) */
u_int32_t size; /* Size of store (4 bytes) */
} header;
rpm_index *tmpindex;
int storepos;
read(fd, &header, sizeof(header));
if (strncmp((char *) &header.magic, RPM_HEADER_MAGIC, 3) != 0) return NULL; /* Invalid magic */
if (header.version != 1) return NULL; /* This program only supports v1 headers */
header.size = ntohl(header.size);
header.entries = ntohl(header.entries);
storepos = lseek(fd,0,SEEK_CUR) + header.entries * 16;
while (header.entries--) {
tmpindex = tags[tagindex++] = malloc(sizeof(rpm_index));
read(fd, tmpindex, sizeof(rpm_index));
tmpindex->tag = ntohl(tmpindex->tag); tmpindex->type = ntohl(tmpindex->type); tmpindex->count = ntohl(tmpindex->count);
tmpindex->offset = storepos + ntohl(tmpindex->offset);
if (pass==0) tmpindex->tag -= 743;
}
lseek(fd, header.size, SEEK_CUR); /* Seek past store */
if (pass==0) lseek(fd, (8 - (lseek(fd,0,SEEK_CUR) % 8)) % 8, SEEK_CUR); /* Skip padding to 8 byte boundary after reading signature headers */
}
tags = realloc(tags, tagindex * sizeof(struct rpmtag *)); /* realloc tags to save space */
*num_tags = tagindex;
return tags; /* All done, leave the file at the start of the gzipped cpio archive */
}
int bsearch_rpmtag(const void *key, const void *item)
{
rpm_index **tmp = (rpm_index **) item;
return ((int) key - tmp[0]->tag);
}
int rpm_getcount(int tag)
{
rpm_index **found;
found = bsearch((void *) tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
if (!found) return 0;
else return found[0]->count;
}
char *rpm_getstring(int tag, int itemindex)
{
rpm_index **found;
found = bsearch((void *) tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
if (!found || itemindex >= found[0]->count) return NULL;
if (found[0]->type == RPM_STRING_TYPE || found[0]->type == RPM_I18NSTRING_TYPE || found[0]->type == RPM_STRING_ARRAY_TYPE) {
int n;
char *tmpstr = (char *) (map + found[0]->offset);
for (n=0; n < itemindex; n++) tmpstr = tmpstr + strlen(tmpstr) + 1;
return tmpstr;
} else return NULL;
}
int rpm_getint(int tag, int itemindex)
{
rpm_index **found;
int n, *tmpint;
found = bsearch((void *) tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
if (!found || itemindex >= found[0]->count) return -1;
tmpint = (int *) (map + found[0]->offset);
if (found[0]->type == RPM_INT32_TYPE) {
for (n=0; n<itemindex; n++) tmpint = (int *) ((void *) tmpint + 4);
return ntohl(*tmpint);
} else if (found[0]->type == RPM_INT16_TYPE) {
for (n=0; n<itemindex; n++) tmpint = (int *) ((void *) tmpint + 2);
return ntohs(*tmpint);
} else if (found[0]->type == RPM_INT8_TYPE) {
for (n=0; n<itemindex; n++) tmpint = (int *) ((void *) tmpint + 1);
return ntohs(*tmpint);
} else return -1;
}
void fileaction_dobackup(char *filename, int fileref)
{
struct stat oldfile;
int stat_res;
char *newname;
if (rpm_getint(RPMTAG_FILEFLAGS, fileref) & RPMFILE_CONFIG) { /* Only need to backup config files */
stat_res = lstat (filename, &oldfile);
if (stat_res == 0 && S_ISREG(oldfile.st_mode)) { /* File already exists - really should check MD5's etc to see if different */
newname = xstrdup(filename);
newname = strcat(newname, ".rpmorig");
copy_file(filename, newname, FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS);
remove_file(filename, FILEUTILS_RECUR | FILEUTILS_FORCE);
free(newname);
}
}
}
void fileaction_setowngrp(char *filename, int fileref)
{
int uid, gid;
uid = my_getpwnam(rpm_getstring(RPMTAG_FILEUSERNAME, fileref));
gid = my_getgrnam(rpm_getstring(RPMTAG_FILEGROUPNAME, fileref));
chown (filename, uid, gid);
}
void fileaction_list(char *filename, int fileref)
{
printf("%s\n", filename);
}
void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref))
{
int count = 0;
char *filename, *tmp_dirname, *tmp_basename;
while (rpm_getstring(filetag, count)) {
tmp_dirname = rpm_getstring(RPMTAG_DIRNAMES, rpm_getint(RPMTAG_DIRINDEXES, count)); /* 1st put on the directory */
tmp_basename = rpm_getstring(RPMTAG_BASENAMES, count);
filename = xmalloc(strlen(tmp_basename) + strlen(tmp_dirname) + 1);
strcpy(filename, tmp_dirname); /* First the directory name */
strcat(filename, tmp_basename); /* then the filename */
fileaction(filename, count++);
free(filename);
}
}

3
include/applets.h
View File

@ -440,6 +440,9 @@
#ifdef CONFIG_ROUTE
APPLET(route, route_main, _BB_DIR_SBIN, _BB_SUID_NEVER)
#endif
#ifdef CONFIG_RPM
APPLET(rpm, rpm_main, _BB_DIR_BIN, _BB_SUID_NEVER)
#endif
#ifdef CONFIG_RPM2CPIO
APPLET(rpm2cpio, rpm2cpio_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)
#endif

1
include/unarchive.h
View File

@ -85,6 +85,7 @@ extern void check_header_gzip(int src_fd);
extern void check_trailer_gzip(int src_fd);
extern char get_header_ar(archive_handle_t *archive_handle);
extern char get_header_cpio(archive_handle_t *archive_handle);
extern char get_header_tar(archive_handle_t *archive_handle);
extern char get_header_tar_bz2(archive_handle_t *archive_handle);
extern char get_header_tar_gz(archive_handle_t *archive_handle);

13
include/usage.h
View File

@ -1696,6 +1696,19 @@
"\t-n\tDont resolve names.\n" \
"\t-e\tDisplay other/more information"
#define rpm_trivial_usage \
"-i -q[ildc]p package.rpm"
#define rpm_full_usage \
"Manipulates RPM packages" \
"Options:" \
"\t-i Install package" \
"\t-q Query package" \
"\t\t-p Query uninstalled package" \
"\t\t-i Show information" \
"\t\t-l List contents" \
"\t\t-d List documents" \
"\t\t-c List config files"
#define rpm2cpio_trivial_usage \
"package.rpm"
#define rpm2cpio_full_usage \