mirror of
https://github.com/topjohnwu/ndk-busybox.git
synced 2024-12-03 09:20:51 +00:00
rpm: code shrink
function old new delta rpm_getstr0 - 7 +7 rpm_getstr 112 110 -2 rpm_getint 120 118 -2 bsearch_rpmtag 15 13 -2 shell_builtin_read 1334 1320 -14 rpm_main 1548 1474 -74 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/5 up/down: 7/-94) Total: -87 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
parent
cde46f75cb
commit
9be166b5dd
248
archival/rpm.c
248
archival/rpm.c
@ -16,18 +16,6 @@
|
||||
//applet:IF_RPM(APPLET(rpm, BB_DIR_BIN, BB_SUID_DROP))
|
||||
//kbuild:lib-$(CONFIG_RPM) += rpm.o
|
||||
|
||||
//usage:#define rpm_trivial_usage
|
||||
//usage: "-i PACKAGE.rpm; rpm -qp[ildc] PACKAGE.rpm"
|
||||
//usage:#define rpm_full_usage "\n\n"
|
||||
//usage: "Manipulate RPM packages\n"
|
||||
//usage: "\nCommands:"
|
||||
//usage: "\n -i Install package"
|
||||
//usage: "\n -qp Query package"
|
||||
//usage: "\n -qpi Show information"
|
||||
//usage: "\n -qpl List contents"
|
||||
//usage: "\n -qpd List documents"
|
||||
//usage: "\n -qpc List config files"
|
||||
|
||||
#include "libbb.h"
|
||||
#include "common_bufsiz.h"
|
||||
#include "bb_archive.h"
|
||||
@ -91,8 +79,9 @@ typedef struct {
|
||||
|
||||
struct globals {
|
||||
void *map;
|
||||
rpm_index **mytags;
|
||||
rpm_index *mytags;
|
||||
int tagcount;
|
||||
unsigned mapsize, pagesize;
|
||||
} FIX_ALIASING;
|
||||
#define G (*(struct globals*)bb_common_bufsiz1)
|
||||
#define INIT_G() do { setup_common_bufsiz(); } while (0)
|
||||
@ -128,105 +117,122 @@ static void extract_cpio(int fd, const char *source_rpm)
|
||||
continue;
|
||||
}
|
||||
|
||||
static rpm_index **rpm_gettags(int fd, int *num_tags)
|
||||
static rpm_index *rpm_gettags(int fd)
|
||||
{
|
||||
/* We should never need more than 200 (shrink via realloc later) */
|
||||
rpm_index **tags = xzalloc(200 * sizeof(tags[0]));
|
||||
int pass, tagindex = 0;
|
||||
rpm_index *tags;
|
||||
unsigned pass, idx;
|
||||
unsigned storepos;
|
||||
|
||||
xlseek(fd, 96, SEEK_CUR); /* Seek past the unused lead */
|
||||
storepos = xlseek(fd, 96, SEEK_CUR); /* Seek past the unused lead */
|
||||
|
||||
G.tagcount = 0;
|
||||
tags = NULL;
|
||||
idx = 0;
|
||||
/* 1st pass is the signature headers, 2nd is the main stuff */
|
||||
for (pass = 0; pass < 2; pass++) {
|
||||
struct rpm_header header;
|
||||
rpm_index *tmpindex;
|
||||
int storepos;
|
||||
unsigned cnt;
|
||||
|
||||
xread(fd, &header, sizeof(header));
|
||||
if (header.magic_and_ver != htonl(RPM_HEADER_MAGICnVER))
|
||||
return NULL; /* Invalid magic, or not version 1 */
|
||||
header.size = ntohl(header.size);
|
||||
header.entries = ntohl(header.entries);
|
||||
storepos = xlseek(fd, 0, SEEK_CUR) + header.entries * 16;
|
||||
cnt = ntohl(header.entries);
|
||||
storepos += sizeof(header) + cnt * 16;
|
||||
|
||||
while (header.entries--) {
|
||||
tmpindex = tags[tagindex++] = xmalloc(sizeof(*tmpindex));
|
||||
xread(fd, tmpindex, sizeof(*tmpindex));
|
||||
tmpindex->tag = ntohl(tmpindex->tag);
|
||||
tmpindex->type = ntohl(tmpindex->type);
|
||||
tmpindex->count = ntohl(tmpindex->count);
|
||||
tmpindex->offset = storepos + ntohl(tmpindex->offset);
|
||||
G.tagcount += cnt;
|
||||
tags = xrealloc(tags, G.tagcount * sizeof(tags[0]));
|
||||
xread(fd, &tags[idx], sizeof(tags[0]) * cnt);
|
||||
while (cnt--) {
|
||||
rpm_index *tag = &tags[idx];
|
||||
tag->tag = ntohl(tag->tag);
|
||||
tag->type = ntohl(tag->type);
|
||||
tag->count = ntohl(tag->count);
|
||||
tag->offset = storepos + ntohl(tag->offset);
|
||||
if (pass == 0)
|
||||
tmpindex->tag -= 743;
|
||||
tag->tag -= 743;
|
||||
idx++;
|
||||
}
|
||||
storepos = xlseek(fd, header.size, SEEK_CUR); /* Seek past store */
|
||||
/* Skip padding to 8 byte boundary after reading signature headers */
|
||||
if (pass == 0)
|
||||
xlseek(fd, (-storepos) & 0x7, SEEK_CUR);
|
||||
while (header.size & 7)
|
||||
header.size++;
|
||||
/* Seek past store */
|
||||
storepos = xlseek(fd, header.size, SEEK_CUR);
|
||||
}
|
||||
/* realloc tags to save space */
|
||||
tags = xrealloc(tags, tagindex * sizeof(tags[0]));
|
||||
*num_tags = tagindex;
|
||||
/* All done, leave the file at the start of the gzipped cpio archive */
|
||||
|
||||
/* Map the store */
|
||||
storepos = (storepos + G.pagesize) & -(int)G.pagesize;
|
||||
/* remember size for munmap */
|
||||
G.mapsize = storepos;
|
||||
/* some NOMMU systems prefer MAP_PRIVATE over MAP_SHARED */
|
||||
G.map = mmap(0, storepos, PROT_READ, MAP_PRIVATE, fd, 0);
|
||||
if (G.map == MAP_FAILED)
|
||||
return NULL; /* error */
|
||||
|
||||
return tags;
|
||||
}
|
||||
|
||||
static int bsearch_rpmtag(const void *key, const void *item)
|
||||
{
|
||||
int *tag = (int *)key;
|
||||
rpm_index **tmp = (rpm_index **) item;
|
||||
return (*tag - tmp[0]->tag);
|
||||
rpm_index *tmp = (rpm_index *) item;
|
||||
return (*tag - tmp->tag);
|
||||
}
|
||||
|
||||
static int rpm_getcount(int tag)
|
||||
{
|
||||
rpm_index **found;
|
||||
found = bsearch(&tag, G.mytags, G.tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
|
||||
rpm_index *found;
|
||||
found = bsearch(&tag, G.mytags, G.tagcount, sizeof(G.mytags[0]), bsearch_rpmtag);
|
||||
if (!found)
|
||||
return 0;
|
||||
return found[0]->count;
|
||||
return found->count;
|
||||
}
|
||||
|
||||
static char *rpm_getstr(int tag, int itemindex)
|
||||
{
|
||||
rpm_index **found;
|
||||
found = bsearch(&tag, G.mytags, G.tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
|
||||
if (!found || itemindex >= found[0]->count)
|
||||
rpm_index *found;
|
||||
found = bsearch(&tag, G.mytags, G.tagcount, sizeof(G.mytags[0]), bsearch_rpmtag);
|
||||
if (!found || itemindex >= found->count)
|
||||
return NULL;
|
||||
if (found[0]->type == RPM_STRING_TYPE
|
||||
|| found[0]->type == RPM_I18NSTRING_TYPE
|
||||
|| found[0]->type == RPM_STRING_ARRAY_TYPE
|
||||
if (found->type == RPM_STRING_TYPE
|
||||
|| found->type == RPM_I18NSTRING_TYPE
|
||||
|| found->type == RPM_STRING_ARRAY_TYPE
|
||||
) {
|
||||
int n;
|
||||
char *tmpstr = (char *) G.map + found[0]->offset;
|
||||
char *tmpstr = (char *) G.map + found->offset;
|
||||
for (n = 0; n < itemindex; n++)
|
||||
tmpstr = tmpstr + strlen(tmpstr) + 1;
|
||||
return tmpstr;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
static char *rpm_getstr0(int tag)
|
||||
{
|
||||
return rpm_getstr(tag, 0);
|
||||
}
|
||||
|
||||
static int rpm_getint(int tag, int itemindex)
|
||||
{
|
||||
rpm_index **found;
|
||||
rpm_index *found;
|
||||
char *tmpint;
|
||||
|
||||
/* gcc throws warnings here when sizeof(void*)!=sizeof(int) ...
|
||||
* it's ok to ignore it because tag won't be used as a pointer */
|
||||
found = bsearch(&tag, G.mytags, G.tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
|
||||
if (!found || itemindex >= found[0]->count)
|
||||
found = bsearch(&tag, G.mytags, G.tagcount, sizeof(G.mytags[0]), bsearch_rpmtag);
|
||||
if (!found || itemindex >= found->count)
|
||||
return -1;
|
||||
|
||||
tmpint = (char *) G.map + found[0]->offset;
|
||||
if (found[0]->type == RPM_INT32_TYPE) {
|
||||
tmpint = (char *) G.map + found->offset;
|
||||
if (found->type == RPM_INT32_TYPE) {
|
||||
tmpint += itemindex*4;
|
||||
return ntohl(*(int32_t*)tmpint);
|
||||
}
|
||||
if (found[0]->type == RPM_INT16_TYPE) {
|
||||
if (found->type == RPM_INT16_TYPE) {
|
||||
tmpint += itemindex*2;
|
||||
return ntohs(*(int16_t*)tmpint);
|
||||
}
|
||||
if (found[0]->type == RPM_INT8_TYPE) {
|
||||
if (found->type == RPM_INT8_TYPE) {
|
||||
tmpint += itemindex;
|
||||
return *(int8_t*)tmpint;
|
||||
}
|
||||
@ -273,11 +279,71 @@ static void loop_through_files(int filetag, void (*fileaction)(char *filename, i
|
||||
}
|
||||
}
|
||||
|
||||
#if 0 //DEBUG
|
||||
static void print_all_tags(void)
|
||||
{
|
||||
unsigned i = 0;
|
||||
while (i < G.tagcount) {
|
||||
rpm_index *tag = &G.mytags[i];
|
||||
if (tag->type == RPM_STRING_TYPE
|
||||
|| tag->type == RPM_I18NSTRING_TYPE
|
||||
|| tag->type == RPM_STRING_ARRAY_TYPE
|
||||
) {
|
||||
unsigned n;
|
||||
char *str = (char *) G.map + tag->offset;
|
||||
|
||||
printf("tag[%u] %08x type %08x offset %08x count %d '%s'\n",
|
||||
i, tag->tag, tag->type, tag->offset, tag->count, str
|
||||
);
|
||||
for (n = 1; n < tag->count; n++) {
|
||||
str += strlen(str) + 1;
|
||||
printf("\t'%s'\n", str);
|
||||
}
|
||||
}
|
||||
i++;
|
||||
}
|
||||
}
|
||||
#else
|
||||
#define print_all_tags() ((void)0)
|
||||
#endif
|
||||
|
||||
//usage:#define rpm_trivial_usage
|
||||
//usage: "-i PACKAGE.rpm; rpm -qp[ildc] PACKAGE.rpm"
|
||||
//usage:#define rpm_full_usage "\n\n"
|
||||
//usage: "Manipulate RPM packages\n"
|
||||
//usage: "\nCommands:"
|
||||
//usage: "\n -i Install package"
|
||||
//usage: "\n -qp Query package"
|
||||
//usage: "\n -qpi Show information"
|
||||
//usage: "\n -qpl List contents"
|
||||
//usage: "\n -qpd List documents"
|
||||
//usage: "\n -qpc List config files"
|
||||
|
||||
/* RPM version 4.13.0.1:
|
||||
* Unlike -q, -i seems to imply -p: -i, -ip and -pi work the same.
|
||||
* OTOH, with -q order is important: "-piq FILE.rpm" works as -qp, not -qpi
|
||||
* (IOW: shows only package name, not package info).
|
||||
* "-iq ARG" works as -q: treats ARG as package name, not a file.
|
||||
*
|
||||
* "man rpm" on -l option and options implying it:
|
||||
* -l, --list List files in package.
|
||||
* -c, --configfiles List only configuration files (implies -l).
|
||||
* -d, --docfiles List only documentation files (implies -l).
|
||||
* -L, --licensefiles List only license files (implies -l).
|
||||
* --dump Dump file information as follows (implies -l):
|
||||
* path size mtime digest mode owner group isconfig isdoc rdev symlink
|
||||
* -s, --state Display the states of files in the package (implies -l).
|
||||
* The state of each file is one of normal, not installed, or replaced.
|
||||
*
|
||||
* Looks like we can switch to getopt32 here: in practice, people
|
||||
* do place -q first if they intend to use it (misinterpreting "-piq" wouldn't matter).
|
||||
*/
|
||||
int rpm_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
||||
int rpm_main(int argc, char **argv)
|
||||
{
|
||||
int opt, func = 0;
|
||||
const unsigned pagesize = getpagesize();
|
||||
|
||||
G.pagesize = getpagesize();
|
||||
|
||||
while ((opt = getopt(argc, argv, "iqpldc")) != -1) {
|
||||
switch (opt) {
|
||||
@ -289,17 +355,17 @@ int rpm_main(int argc, char **argv)
|
||||
if (func) bb_show_usage();
|
||||
func = rpm_query;
|
||||
break;
|
||||
case 'p': /* Query a package */
|
||||
case 'p': /* Query a package (IOW: .rpm file, we are not querying RPMDB) */
|
||||
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) */
|
||||
case 'd': /* List doc files in a package (implies -l) */
|
||||
func |= rpm_query_list;
|
||||
func |= rpm_query_list_doc;
|
||||
break;
|
||||
case 'c': /* List config files in a package (implies list) */
|
||||
case 'c': /* List config files in a package (implies -l) */
|
||||
func |= rpm_query_list;
|
||||
func |= rpm_query_list_config;
|
||||
break;
|
||||
@ -313,24 +379,22 @@ int rpm_main(int argc, char **argv)
|
||||
bb_show_usage();
|
||||
}
|
||||
|
||||
while (*argv) {
|
||||
for (;;) {
|
||||
int rpm_fd;
|
||||
unsigned mapsize;
|
||||
const char *source_rpm;
|
||||
|
||||
rpm_fd = xopen(*argv++, O_RDONLY);
|
||||
G.mytags = rpm_gettags(rpm_fd, &G.tagcount);
|
||||
rpm_fd = xopen(*argv, O_RDONLY);
|
||||
G.mytags = rpm_gettags(rpm_fd);
|
||||
if (!G.mytags)
|
||||
bb_error_msg_and_die("error reading rpm header");
|
||||
mapsize = xlseek(rpm_fd, 0, SEEK_CUR);
|
||||
mapsize = (mapsize + pagesize) & -(int)pagesize;
|
||||
/* Some NOMMU systems prefer MAP_PRIVATE over MAP_SHARED */
|
||||
G.map = mmap(0, mapsize, PROT_READ, MAP_PRIVATE, rpm_fd, 0);
|
||||
//FIXME: error check?
|
||||
bb_error_msg_and_die("error reading rpm header from '%s'", *argv);
|
||||
|
||||
source_rpm = rpm_getstr(TAG_SOURCERPM, 0);
|
||||
print_all_tags();
|
||||
|
||||
source_rpm = rpm_getstr0(TAG_SOURCERPM);
|
||||
|
||||
if (func & rpm_install) {
|
||||
/* -i (and not -qi) */
|
||||
|
||||
/* Backup any config files */
|
||||
loop_through_files(TAG_BASENAMES, fileaction_dobackup);
|
||||
/* Extact the archive */
|
||||
@ -338,10 +402,13 @@ int rpm_main(int argc, char **argv)
|
||||
/* Set the correct file uid/gid's */
|
||||
loop_through_files(TAG_BASENAMES, fileaction_setowngrp);
|
||||
}
|
||||
else if ((func & (rpm_query|rpm_query_package)) == (rpm_query|rpm_query_package)) {
|
||||
else
|
||||
if ((func & (rpm_query|rpm_query_package)) == (rpm_query|rpm_query_package)) {
|
||||
/* -qp */
|
||||
|
||||
if (!(func & (rpm_query_info|rpm_query_list))) {
|
||||
/* If just a straight query, just give package name */
|
||||
printf("%s-%s-%s\n", rpm_getstr(TAG_NAME, 0), rpm_getstr(TAG_VERSION, 0), rpm_getstr(TAG_RELEASE, 0));
|
||||
printf("%s-%s-%s\n", rpm_getstr0(TAG_NAME), rpm_getstr0(TAG_VERSION), rpm_getstr0(TAG_RELEASE));
|
||||
}
|
||||
if (func & rpm_query_info) {
|
||||
/* Do the nice printout */
|
||||
@ -350,30 +417,33 @@ int rpm_main(int argc, char **argv)
|
||||
char bdatestring[50];
|
||||
const char *p;
|
||||
|
||||
printf("%-12s: %s\n", "Name" , rpm_getstr(TAG_NAME, 0));
|
||||
printf("%-12s: %s\n", "Name" , rpm_getstr0(TAG_NAME));
|
||||
/* TODO compat: add "Epoch" here */
|
||||
printf("%-12s: %s\n", "Version" , rpm_getstr(TAG_VERSION, 0));
|
||||
printf("%-12s: %s\n", "Release" , rpm_getstr(TAG_RELEASE, 0));
|
||||
printf("%-12s: %s\n", "Version" , rpm_getstr0(TAG_VERSION));
|
||||
printf("%-12s: %s\n", "Release" , rpm_getstr0(TAG_RELEASE));
|
||||
/* add "Architecture" */
|
||||
printf("%-12s: %s\n", "Install Date", "(not installed)");
|
||||
printf("%-12s: %s\n", "Group" , rpm_getstr(TAG_GROUP, 0));
|
||||
/* printf("%-12s: %s\n", "Install Date", "(not installed)"); - we don't know */
|
||||
printf("%-12s: %s\n", "Group" , rpm_getstr0(TAG_GROUP));
|
||||
printf("%-12s: %d\n", "Size" , rpm_getint(TAG_SIZE, 0));
|
||||
printf("%-12s: %s\n", "License" , rpm_getstr(TAG_LICENSE, 0));
|
||||
printf("%-12s: %s\n", "License" , rpm_getstr0(TAG_LICENSE));
|
||||
/* add "Signature" */
|
||||
printf("%-12s: %s\n", "Source RPM" , source_rpm ? source_rpm : "(none)");
|
||||
bdate_time = rpm_getint(TAG_BUILDTIME, 0);
|
||||
bdate_ptm = localtime(&bdate_time);
|
||||
strftime(bdatestring, 50, "%a %d %b %Y %T %Z", bdate_ptm);
|
||||
printf("%-12s: %s\n", "Build Date" , bdatestring);
|
||||
printf("%-12s: %s\n", "Build Host" , rpm_getstr(TAG_BUILDHOST, 0));
|
||||
p = rpm_getstr(TAG_PREFIXS, 0);
|
||||
printf("%-12s: %s\n", "Build Host" , rpm_getstr0(TAG_BUILDHOST));
|
||||
p = rpm_getstr0(TAG_PREFIXS);
|
||||
printf("%-12s: %s\n", "Relocations" , p ? p : "(not relocatable)");
|
||||
/* add "Packager" */
|
||||
p = rpm_getstr(TAG_VENDOR, 0);
|
||||
printf("%-12s: %s\n", "Vendor" , p ? p : "(none)");
|
||||
printf("%-12s: %s\n", "URL" , rpm_getstr(TAG_URL, 0));
|
||||
printf("%-12s: %s\n", "Summary" , rpm_getstr(TAG_SUMMARY, 0));
|
||||
printf("Description :\n%s\n", rpm_getstr(TAG_DESCRIPTION, 0));
|
||||
p = rpm_getstr0(TAG_VENDOR);
|
||||
if (p) /* rpm 4.13.0.1 does not show "(none)" for Vendor: */
|
||||
printf("%-12s: %s\n", "Vendor" , p);
|
||||
p = rpm_getstr0(TAG_URL);
|
||||
if (p) /* rpm 4.13.0.1 does not show "(none)"/"(null)" for URL: */
|
||||
printf("%-12s: %s\n", "URL" , p);
|
||||
printf("%-12s: %s\n", "Summary" , rpm_getstr0(TAG_SUMMARY));
|
||||
printf("Description :\n%s\n", rpm_getstr0(TAG_DESCRIPTION));
|
||||
}
|
||||
if (func & rpm_query_list) {
|
||||
int count, it, flags;
|
||||
@ -396,10 +466,16 @@ int rpm_main(int argc, char **argv)
|
||||
rpm_getstr(TAG_BASENAMES, it));
|
||||
}
|
||||
}
|
||||
} else {
|
||||
/* Unsupported (help text shows what we support) */
|
||||
bb_show_usage();
|
||||
}
|
||||
munmap(G.map, mapsize);
|
||||
if (!*++argv)
|
||||
break;
|
||||
munmap(G.map, G.mapsize);
|
||||
free(G.mytags);
|
||||
close(rpm_fd);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -75,11 +75,14 @@ int rpm2cpio_main(int argc UNUSED_PARAM, char **argv)
|
||||
/* Skip the main header */
|
||||
skip_header();
|
||||
|
||||
//if (SEAMLESS_COMPRESSION)
|
||||
//if (SEAMLESS_COMPRESSION) - we do this at the end instead.
|
||||
// /* We need to know whether child (gzip/bzip/etc) exits abnormally */
|
||||
// signal(SIGCHLD, check_errors_in_children);
|
||||
|
||||
/* This works, but doesn't report uncompress errors (they happen in child) */
|
||||
//TODO: look for rpm tag RPMTAG_PAYLOADCOMPRESSOR (dec 1125, hex 0x465),
|
||||
// if the value is "lzma", set up decompressor without detection
|
||||
// (lzma can't be detected).
|
||||
|
||||
setup_unzip_on_fd(rpm_fd, /*fail_if_not_compressed:*/ 1);
|
||||
if (bb_copyfd_eof(rpm_fd, STDOUT_FILENO) < 0)
|
||||
bb_error_msg_and_die("error unpacking");
|
||||
|
||||
Loading…
Reference in New Issue
Block a user