1 /* vi: set sw=4 ts=4: */
3 * Mini rpm applet for busybox
5 * Copyright (C) 2001,2002 by Laurence Anderson
7 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
10 //usage:#define rpm_trivial_usage
11 //usage: "-i PACKAGE.rpm; rpm -qp[ildc] PACKAGE.rpm"
12 //usage:#define rpm_full_usage "\n\n"
13 //usage: "Manipulate RPM packages\n"
14 //usage: "\nCommands:"
15 //usage: "\n -i Install package"
16 //usage: "\n -qp Query package"
17 //usage: "\n -i Show information"
18 //usage: "\n -l List contents"
19 //usage: "\n -d List documents"
20 //usage: "\n -c List config files"
23 #include "bb_archive.h"
26 #define RPM_CHAR_TYPE 1
27 #define RPM_INT8_TYPE 2
28 #define RPM_INT16_TYPE 3
29 #define RPM_INT32_TYPE 4
30 /* #define RPM_INT64_TYPE 5 ---- These aren't supported (yet) */
31 #define RPM_STRING_TYPE 6
32 #define RPM_BIN_TYPE 7
33 #define RPM_STRING_ARRAY_TYPE 8
34 #define RPM_I18NSTRING_TYPE 9
37 #define TAG_VERSION 1001
38 #define TAG_RELEASE 1002
39 #define TAG_SUMMARY 1004
40 #define TAG_DESCRIPTION 1005
41 #define TAG_BUILDTIME 1006
42 #define TAG_BUILDHOST 1007
44 #define TAG_VENDOR 1011
45 #define TAG_LICENSE 1014
46 #define TAG_PACKAGER 1015
47 #define TAG_GROUP 1016
49 #define TAG_PREIN 1023
50 #define TAG_POSTIN 1024
51 #define TAG_FILEFLAGS 1037
52 #define TAG_FILEUSERNAME 1039
53 #define TAG_FILEGROUPNAME 1040
54 #define TAG_SOURCERPM 1044
55 #define TAG_PREINPROG 1085
56 #define TAG_POSTINPROG 1086
57 #define TAG_PREFIXS 1098
58 #define TAG_DIRINDEXES 1116
59 #define TAG_BASENAMES 1117
60 #define TAG_DIRNAMES 1118
62 #define RPMFILE_CONFIG (1 << 0)
63 #define RPMFILE_DOC (1 << 1)
65 enum rpm_functions_e {
69 rpm_query_package = 8,
71 rpm_query_list_doc = 32,
72 rpm_query_list_config = 64
76 uint32_t tag; /* 4 byte tag */
77 uint32_t type; /* 4 byte type */
78 uint32_t offset; /* 4 byte offset */
79 uint32_t count; /* 4 byte count */
83 static rpm_index **mytags;
86 static void extract_cpio(int fd, const char *source_rpm);
87 static rpm_index **rpm_gettags(int fd, int *num_tags);
88 static int bsearch_rpmtag(const void *key, const void *item);
89 static char *rpm_getstr(int tag, int itemindex);
90 static int rpm_getint(int tag, int itemindex);
91 static int rpm_getcount(int tag);
92 static void fileaction_dobackup(char *filename, int fileref);
93 static void fileaction_setowngrp(char *filename, int fileref);
94 static void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref));
96 int rpm_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
97 int rpm_main(int argc, char **argv)
99 int opt = 0, func = 0, rpm_fd, offset;
100 const int pagesize = getpagesize();
102 while ((opt = getopt(argc, argv, "iqpldc")) != -1) {
104 case 'i': /* First arg: Install mode, with q: Information */
105 if (!func) func = rpm_install;
106 else func |= rpm_query_info;
108 case 'q': /* First arg: Query mode */
109 if (func) bb_show_usage();
112 case 'p': /* Query a package */
113 func |= rpm_query_package;
115 case 'l': /* List files in a package */
116 func |= rpm_query_list;
118 case 'd': /* List doc files in a package (implies list) */
119 func |= rpm_query_list;
120 func |= rpm_query_list_doc;
122 case 'c': /* List config files in a package (implies list) */
123 func |= rpm_query_list;
124 func |= rpm_query_list_config;
137 const char *source_rpm;
139 rpm_fd = xopen(*argv++, O_RDONLY);
140 mytags = rpm_gettags(rpm_fd, &tagcount);
142 bb_error_msg_and_die("error reading rpm header");
143 offset = xlseek(rpm_fd, 0, SEEK_CUR);
144 /* Mimimum is one page */
145 map = mmap(0, offset > pagesize ? (offset + offset % pagesize) : pagesize, PROT_READ, MAP_PRIVATE, rpm_fd, 0);
147 source_rpm = rpm_getstr(TAG_SOURCERPM, 0);
149 if (func & rpm_install) {
150 /* Backup any config files */
151 loop_through_files(TAG_BASENAMES, fileaction_dobackup);
152 /* Extact the archive */
153 extract_cpio(rpm_fd, source_rpm);
154 /* Set the correct file uid/gid's */
155 loop_through_files(TAG_BASENAMES, fileaction_setowngrp);
157 else if ((func & (rpm_query|rpm_query_package)) == (rpm_query|rpm_query_package)) {
158 if (!(func & (rpm_query_info|rpm_query_list))) {
159 /* If just a straight query, just give package name */
160 printf("%s-%s-%s\n", rpm_getstr(TAG_NAME, 0), rpm_getstr(TAG_VERSION, 0), rpm_getstr(TAG_RELEASE, 0));
162 if (func & rpm_query_info) {
163 /* Do the nice printout */
165 struct tm *bdate_ptm;
166 char bdatestring[50];
169 p = rpm_getstr(TAG_PREFIXS, 0);
170 if (!p) p = "(not relocateable)";
171 printf("Name : %-29sRelocations: %s\n", rpm_getstr(TAG_NAME, 0), p);
172 p = rpm_getstr(TAG_VENDOR, 0);
173 if (!p) p = "(none)";
174 printf("Version : %-34sVendor: %s\n", rpm_getstr(TAG_VERSION, 0), p);
175 bdate_time = rpm_getint(TAG_BUILDTIME, 0);
176 bdate_ptm = localtime(&bdate_time);
177 strftime(bdatestring, 50, "%a %d %b %Y %T %Z", bdate_ptm);
178 printf("Release : %-30sBuild Date: %s\n", rpm_getstr(TAG_RELEASE, 0), bdatestring);
179 printf("Install date: %-30sBuild Host: %s\n", "(not installed)", rpm_getstr(TAG_BUILDHOST, 0));
180 printf("Group : %-30sSource RPM: %s\n", rpm_getstr(TAG_GROUP, 0), source_rpm);
181 printf("Size : %-33dLicense: %s\n", rpm_getint(TAG_SIZE, 0), rpm_getstr(TAG_LICENSE, 0));
182 printf("URL : %s\n", rpm_getstr(TAG_URL, 0));
183 printf("Summary : %s\n", rpm_getstr(TAG_SUMMARY, 0));
184 printf("Description :\n%s\n", rpm_getstr(TAG_DESCRIPTION, 0));
186 if (func & rpm_query_list) {
187 int count, it, flags;
188 count = rpm_getcount(TAG_BASENAMES);
189 for (it = 0; it < count; it++) {
190 flags = rpm_getint(TAG_FILEFLAGS, it);
191 switch (func & (rpm_query_list_doc|rpm_query_list_config)) {
192 case rpm_query_list_doc:
193 if (!(flags & RPMFILE_DOC)) continue;
195 case rpm_query_list_config:
196 if (!(flags & RPMFILE_CONFIG)) continue;
198 case rpm_query_list_doc|rpm_query_list_config:
199 if (!(flags & (RPMFILE_CONFIG|RPMFILE_DOC))) continue;
203 rpm_getstr(TAG_DIRNAMES, rpm_getint(TAG_DIRINDEXES, it)),
204 rpm_getstr(TAG_BASENAMES, it));
213 static void extract_cpio(int fd, const char *source_rpm)
215 archive_handle_t *archive_handle;
217 if (source_rpm != NULL) {
218 /* Binary rpm (it was built from some SRPM), install to root */
220 } /* else: SRPM, install to current dir */
223 archive_handle = init_handle();
224 archive_handle->seek = seek_by_read;
225 archive_handle->action_data = data_extract_all;
226 #if 0 /* For testing (rpm -i only lists the files in internal cpio): */
227 archive_handle->action_header = header_list;
228 archive_handle->action_data = data_skip;
230 archive_handle->ah_flags = ARCHIVE_RESTORE_DATE | ARCHIVE_CREATE_LEADING_DIRS
231 /* compat: overwrite existing files.
232 * try "rpm -i foo.src.rpm" few times in a row -
233 * standard rpm will not complain.
234 * (TODO? real rpm creates "file;1234" and then renames it) */
235 | ARCHIVE_UNLINK_OLD;
236 archive_handle->src_fd = fd;
237 /*archive_handle->offset = 0; - init_handle() did it */
239 setup_unzip_on_fd(archive_handle->src_fd /*, fail_if_not_detected: 1*/);
240 while (get_header_cpio(archive_handle) == EXIT_SUCCESS)
244 static rpm_index **rpm_gettags(int fd, int *num_tags)
246 /* We should never need more than 200 (shrink via realloc later) */
247 rpm_index **tags = xzalloc(200 * sizeof(tags[0]));
248 int pass, tagindex = 0;
250 xlseek(fd, 96, SEEK_CUR); /* Seek past the unused lead */
252 /* 1st pass is the signature headers, 2nd is the main stuff */
253 for (pass = 0; pass < 2; pass++) {
254 struct rpm_header header;
258 xread(fd, &header, sizeof(header));
259 if (header.magic_and_ver != htonl(RPM_HEADER_MAGICnVER))
260 return NULL; /* Invalid magic, or not version 1 */
261 header.size = ntohl(header.size);
262 header.entries = ntohl(header.entries);
263 storepos = xlseek(fd, 0, SEEK_CUR) + header.entries * 16;
265 while (header.entries--) {
266 tmpindex = tags[tagindex++] = xmalloc(sizeof(*tmpindex));
267 xread(fd, tmpindex, sizeof(*tmpindex));
268 tmpindex->tag = ntohl(tmpindex->tag);
269 tmpindex->type = ntohl(tmpindex->type);
270 tmpindex->count = ntohl(tmpindex->count);
271 tmpindex->offset = storepos + ntohl(tmpindex->offset);
273 tmpindex->tag -= 743;
275 storepos = xlseek(fd, header.size, SEEK_CUR); /* Seek past store */
276 /* Skip padding to 8 byte boundary after reading signature headers */
278 xlseek(fd, (-storepos) & 0x7, SEEK_CUR);
280 /* realloc tags to save space */
281 tags = xrealloc(tags, tagindex * sizeof(tags[0]));
282 *num_tags = tagindex;
283 /* All done, leave the file at the start of the gzipped cpio archive */
287 static int bsearch_rpmtag(const void *key, const void *item)
289 int *tag = (int *)key;
290 rpm_index **tmp = (rpm_index **) item;
291 return (*tag - tmp[0]->tag);
294 static int rpm_getcount(int tag)
297 found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
300 return found[0]->count;
303 static char *rpm_getstr(int tag, int itemindex)
306 found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
307 if (!found || itemindex >= found[0]->count)
309 if (found[0]->type == RPM_STRING_TYPE
310 || found[0]->type == RPM_I18NSTRING_TYPE
311 || found[0]->type == RPM_STRING_ARRAY_TYPE
314 char *tmpstr = (char *) map + found[0]->offset;
315 for (n = 0; n < itemindex; n++)
316 tmpstr = tmpstr + strlen(tmpstr) + 1;
322 static int rpm_getint(int tag, int itemindex)
325 int *tmpint; /* NB: using int8_t* would be easier to code */
327 /* gcc throws warnings here when sizeof(void*)!=sizeof(int) ...
328 * it's ok to ignore it because tag won't be used as a pointer */
329 found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
330 if (!found || itemindex >= found[0]->count)
333 tmpint = (int *) ((char *) map + found[0]->offset);
335 if (found[0]->type == RPM_INT32_TYPE) {
336 tmpint = (int *) ((char *) tmpint + itemindex*4);
337 /*return ntohl(*tmpint);*/
338 /* int can be != int32_t */
339 return ntohl(*(int32_t*)tmpint);
341 if (found[0]->type == RPM_INT16_TYPE) {
342 tmpint = (int *) ((char *) tmpint + itemindex*2);
343 /* ??? read int, and THEN ntohs() it?? */
344 /*return ntohs(*tmpint);*/
345 return ntohs(*(int16_t*)tmpint);
347 if (found[0]->type == RPM_INT8_TYPE) {
348 tmpint = (int *) ((char *) tmpint + itemindex);
349 /* ??? why we don't read byte here??? */
350 /*return ntohs(*tmpint);*/
351 return *(int8_t*)tmpint;
356 static void fileaction_dobackup(char *filename, int fileref)
361 if (rpm_getint(TAG_FILEFLAGS, fileref) & RPMFILE_CONFIG) {
362 /* Only need to backup config files */
363 stat_res = lstat(filename, &oldfile);
364 if (stat_res == 0 && S_ISREG(oldfile.st_mode)) {
365 /* File already exists - really should check MD5's etc to see if different */
366 newname = xasprintf("%s.rpmorig", filename);
367 copy_file(filename, newname, FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS);
368 remove_file(filename, FILEUTILS_RECUR | FILEUTILS_FORCE);
374 static void fileaction_setowngrp(char *filename, int fileref)
376 /* real rpm warns: "user foo does not exist - using <you>" */
377 struct passwd *pw = getpwnam(rpm_getstr(TAG_FILEUSERNAME, fileref));
378 int uid = pw ? pw->pw_uid : getuid(); /* or euid? */
379 struct group *gr = getgrnam(rpm_getstr(TAG_FILEGROUPNAME, fileref));
380 int gid = gr ? gr->gr_gid : getgid();
381 chown(filename, uid, gid);
384 static void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref))
387 while (rpm_getstr(filetag, count)) {
388 char* filename = xasprintf("%s%s",
389 rpm_getstr(TAG_DIRNAMES, rpm_getint(TAG_DIRINDEXES, count)),
390 rpm_getstr(TAG_BASENAMES, count));
391 fileaction(filename, count++);