1 /* vi: set sw=4 ts=4: */
3 * Mini rpm applet for busybox
5 * Copyright (C) 2001,2002 by Laurence Anderson
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 #include <netinet/in.h> /* For ntohl & htonl function */
28 #include <string.h> /* For strncmp */
29 #include <sys/mman.h> /* For mmap */
30 #include <time.h> /* For ctime */
33 #include "unarchive.h"
35 #define RPM_HEADER_MAGIC "\216\255\350"
36 #define RPM_CHAR_TYPE 1
37 #define RPM_INT8_TYPE 2
38 #define RPM_INT16_TYPE 3
39 #define RPM_INT32_TYPE 4
40 /* #define RPM_INT64_TYPE 5 ---- These aren't supported (yet) */
41 #define RPM_STRING_TYPE 6
42 #define RPM_BIN_TYPE 7
43 #define RPM_STRING_ARRAY_TYPE 8
44 #define RPM_I18NSTRING_TYPE 9
46 #define RPMTAG_NAME 1000
47 #define RPMTAG_VERSION 1001
48 #define RPMTAG_RELEASE 1002
49 #define RPMTAG_SUMMARY 1004
50 #define RPMTAG_DESCRIPTION 1005
51 #define RPMTAG_BUILDTIME 1006
52 #define RPMTAG_BUILDHOST 1007
53 #define RPMTAG_SIZE 1009
54 #define RPMTAG_VENDOR 1011
55 #define RPMTAG_LICENSE 1014
56 #define RPMTAG_PACKAGER 1015
57 #define RPMTAG_GROUP 1016
58 #define RPMTAG_URL 1020
59 #define RPMTAG_PREIN 1023
60 #define RPMTAG_POSTIN 1024
61 #define RPMTAG_FILEFLAGS 1037
62 #define RPMTAG_FILEUSERNAME 1039
63 #define RPMTAG_FILEGROUPNAME 1040
64 #define RPMTAG_SOURCERPM 1044
65 #define RPMTAG_PREINPROG 1085
66 #define RPMTAG_POSTINPROG 1086
67 #define RPMTAG_PREFIXS 1098
68 #define RPMTAG_DIRINDEXES 1116
69 #define RPMTAG_BASENAMES 1117
70 #define RPMTAG_DIRNAMES 1118
71 #define RPMFILE_CONFIG (1 << 0)
72 #define RPMFILE_DOC (1 << 1)
74 enum rpm_functions_e {
78 rpm_query_package = 8,
80 rpm_query_list_doc = 32,
81 rpm_query_list_config = 64
85 uint32_t tag; /* 4 byte tag */
86 uint32_t type; /* 4 byte type */
87 uint32_t offset; /* 4 byte offset */
88 uint32_t count; /* 4 byte count */
92 static rpm_index **mytags;
95 void extract_cpio_gz(int fd);
96 rpm_index **rpm_gettags(int fd, int *num_tags);
97 int bsearch_rpmtag(const void *key, const void *item);
98 char *rpm_getstring(int tag, int itemindex);
99 int rpm_getint(int tag, int itemindex);
100 int rpm_getcount(int tag);
101 void exec_script(int progtag, int datatag, char *prefix);
102 void fileaction_dobackup(char *filename, int fileref);
103 void fileaction_setowngrp(char *filename, int fileref);
104 void fileaction_list(char *filename, int itemno);
105 void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref));
107 int rpm_main(int argc, char **argv)
109 int opt = 0, func = 0, rpm_fd, offset;
111 while ((opt = getopt(argc, argv, "iqpldc")) != -1) {
113 case 'i': // First arg: Install mode, with q: Information
114 if (!func) func |= rpm_install;
115 else func |= rpm_query_info;
117 case 'q': // First arg: Query mode
118 if (!func) func |= rpm_query;
119 else bb_show_usage();
121 case 'p': // Query a package
122 func |= rpm_query_package;
124 case 'l': // List files in a package
125 func |= rpm_query_list;
127 case 'd': // List doc files in a package (implies list)
128 func |= rpm_query_list;
129 func |= rpm_query_list_doc;
131 case 'c': // List config files in a package (implies list)
132 func |= rpm_query_list;
133 func |= rpm_query_list_config;
140 if (optind == argc) bb_show_usage();
141 while (optind < argc) {
142 rpm_fd = bb_xopen(argv[optind], O_RDONLY);
143 mytags = rpm_gettags(rpm_fd, (int *) &tagcount);
144 offset = lseek(rpm_fd, 0, SEEK_CUR);
145 if (!mytags) { printf("Error reading rpm header\n"); exit(-1); }
146 map = mmap(0, offset > getpagesize() ? (offset + offset % getpagesize()) : getpagesize(), PROT_READ, MAP_SHARED, rpm_fd, 0); // Mimimum is one page
147 if (func & rpm_install) {
148 loop_through_files(RPMTAG_BASENAMES, fileaction_dobackup); /* Backup any config files */
149 extract_cpio_gz(rpm_fd); // Extact the archive
150 loop_through_files(RPMTAG_BASENAMES, fileaction_setowngrp); /* Set the correct file uid/gid's */
151 } else if (func & rpm_query && func & rpm_query_package) {
152 if (!((func & rpm_query_info) || (func & rpm_query_list))) { // If just a straight query, just give package name
153 printf("%s-%s-%s\n", rpm_getstring(RPMTAG_NAME, 0), rpm_getstring(RPMTAG_VERSION, 0), rpm_getstring(RPMTAG_RELEASE, 0));
155 if (func & rpm_query_info) {
156 /* Do the nice printout */
159 char bdatestring[50];
160 printf("Name : %-29sRelocations: %s\n", rpm_getstring(RPMTAG_NAME, 0), rpm_getstring(RPMTAG_PREFIXS, 0) ? rpm_getstring(RPMTAG_PREFIXS, 0) : "(not relocateable)");
161 printf("Version : %-34sVendor: %s\n", rpm_getstring(RPMTAG_VERSION, 0), rpm_getstring(RPMTAG_VENDOR, 0) ? rpm_getstring(RPMTAG_VENDOR, 0) : "(none)");
162 bdate_time = rpm_getint(RPMTAG_BUILDTIME, 0);
163 bdate = localtime((time_t *) &bdate_time);
164 strftime(bdatestring, 50, "%a %d %b %Y %T %Z", bdate);
165 printf("Release : %-30sBuild Date: %s\n", rpm_getstring(RPMTAG_RELEASE, 0), bdatestring);
166 printf("Install date: %-30sBuild Host: %s\n", "(not installed)", rpm_getstring(RPMTAG_BUILDHOST, 0));
167 printf("Group : %-30sSource RPM: %s\n", rpm_getstring(RPMTAG_GROUP, 0), rpm_getstring(RPMTAG_SOURCERPM, 0));
168 printf("Size : %-33dLicense: %s\n", rpm_getint(RPMTAG_SIZE, 0), rpm_getstring(RPMTAG_LICENSE, 0));
169 printf("URL : %s\n", rpm_getstring(RPMTAG_URL, 0));
170 printf("Summary : %s\n", rpm_getstring(RPMTAG_SUMMARY, 0));
171 printf("Description :\n%s\n", rpm_getstring(RPMTAG_DESCRIPTION, 0));
173 if (func & rpm_query_list) {
174 int count, it, flags;
175 count = rpm_getcount(RPMTAG_BASENAMES);
176 for (it = 0; it < count; it++) {
177 flags = rpm_getint(RPMTAG_FILEFLAGS, it);
178 switch ((func & rpm_query_list_doc) + (func & rpm_query_list_config))
180 case rpm_query_list_doc: if (!(flags & RPMFILE_DOC)) continue; break;
181 case rpm_query_list_config: if (!(flags & RPMFILE_CONFIG)) continue; break;
182 case rpm_query_list_doc + rpm_query_list_config: if (!((flags & RPMFILE_CONFIG) || (flags & RPMFILE_DOC))) continue; break;
184 printf("%s%s\n", rpm_getstring(RPMTAG_DIRNAMES, rpm_getint(RPMTAG_DIRINDEXES, it)), rpm_getstring(RPMTAG_BASENAMES, it));
194 void extract_cpio_gz(int fd) {
195 archive_handle_t *archive_handle;
196 unsigned char magic[2];
199 archive_handle = init_handle();
200 archive_handle->seek = seek_by_char;
201 //archive_handle->action_header = header_list;
202 archive_handle->action_data = data_extract_all;
203 archive_handle->flags |= ARCHIVE_PRESERVE_DATE;
204 archive_handle->flags |= ARCHIVE_CREATE_LEADING_DIRS;
205 archive_handle->src_fd = fd;
206 archive_handle->offset = 0;
208 bb_xread_all(archive_handle->src_fd, &magic, 2);
209 if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) {
210 bb_error_msg_and_die("Invalid gzip magic");
212 check_header_gzip(archive_handle->src_fd);
213 chdir("/"); // Install RPM's to root
215 archive_handle->src_fd = open_transformer(archive_handle->src_fd, inflate_gunzip);
216 archive_handle->offset = 0;
217 while (get_header_cpio(archive_handle) == EXIT_SUCCESS);
221 rpm_index **rpm_gettags(int fd, int *num_tags)
223 rpm_index **tags = calloc(200, sizeof(struct rpmtag *)); /* We should never need mode than 200, and realloc later */
224 int pass, tagindex = 0;
225 lseek(fd, 96, SEEK_CUR); /* Seek past the unused lead */
227 for (pass = 0; pass < 2; pass++) { /* 1st pass is the signature headers, 2nd is the main stuff */
229 char magic[3]; /* 3 byte magic: 0x8e 0xad 0xe8 */
230 uint8_t version; /* 1 byte version number */
231 uint32_t reserved; /* 4 bytes reserved */
232 uint32_t entries; /* Number of entries in header (4 bytes) */
233 uint32_t size; /* Size of store (4 bytes) */
238 read(fd, &header, sizeof(header));
239 if (strncmp((char *) &header.magic, RPM_HEADER_MAGIC, 3) != 0) return NULL; /* Invalid magic */
240 if (header.version != 1) return NULL; /* This program only supports v1 headers */
241 header.size = ntohl(header.size);
242 header.entries = ntohl(header.entries);
243 storepos = lseek(fd,0,SEEK_CUR) + header.entries * 16;
245 while (header.entries--) {
246 tmpindex = tags[tagindex++] = malloc(sizeof(rpm_index));
247 read(fd, tmpindex, sizeof(rpm_index));
248 tmpindex->tag = ntohl(tmpindex->tag); tmpindex->type = ntohl(tmpindex->type); tmpindex->count = ntohl(tmpindex->count);
249 tmpindex->offset = storepos + ntohl(tmpindex->offset);
250 if (pass==0) tmpindex->tag -= 743;
252 lseek(fd, header.size, SEEK_CUR); /* Seek past store */
253 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 */
255 tags = realloc(tags, tagindex * sizeof(struct rpmtag *)); /* realloc tags to save space */
256 *num_tags = tagindex;
257 return tags; /* All done, leave the file at the start of the gzipped cpio archive */
260 int bsearch_rpmtag(const void *key, const void *item)
262 rpm_index **tmp = (rpm_index **) item;
263 /* gcc throws warnings here when sizeof(void*)!=sizeof(int) ...
264 * it's ok to ignore it because this isn't a 'real' pointer */
265 return ((int) key - tmp[0]->tag);
268 int rpm_getcount(int tag)
271 /* gcc throws warnings here when sizeof(void*)!=sizeof(int) ...
272 * it's ok to ignore it because tag won't be used as a pointer */
273 found = bsearch((void *) tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
274 if (!found) return 0;
275 else return found[0]->count;
278 char *rpm_getstring(int tag, int itemindex)
281 /* gcc throws warnings here when sizeof(void*)!=sizeof(int) ...
282 * it's ok to ignore it because tag won't be used as a pointer */
283 found = bsearch((void *) tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
284 if (!found || itemindex >= found[0]->count) return NULL;
285 if (found[0]->type == RPM_STRING_TYPE || found[0]->type == RPM_I18NSTRING_TYPE || found[0]->type == RPM_STRING_ARRAY_TYPE) {
287 char *tmpstr = (char *) (map + found[0]->offset);
288 for (n=0; n < itemindex; n++) tmpstr = tmpstr + strlen(tmpstr) + 1;
293 int rpm_getint(int tag, int itemindex)
297 /* gcc throws warnings here when sizeof(void*)!=sizeof(int) ...
298 * it's ok to ignore it because tag won't be used as a pointer */
299 found = bsearch((void *) tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
300 if (!found || itemindex >= found[0]->count) return -1;
301 tmpint = (int *) (map + found[0]->offset);
302 if (found[0]->type == RPM_INT32_TYPE) {
303 for (n=0; n<itemindex; n++) tmpint = (int *) ((void *) tmpint + 4);
304 return ntohl(*tmpint);
305 } else if (found[0]->type == RPM_INT16_TYPE) {
306 for (n=0; n<itemindex; n++) tmpint = (int *) ((void *) tmpint + 2);
307 return ntohs(*tmpint);
308 } else if (found[0]->type == RPM_INT8_TYPE) {
309 for (n=0; n<itemindex; n++) tmpint = (int *) ((void *) tmpint + 1);
310 return ntohs(*tmpint);
314 void fileaction_dobackup(char *filename, int fileref)
319 if (rpm_getint(RPMTAG_FILEFLAGS, fileref) & RPMFILE_CONFIG) { /* Only need to backup config files */
320 stat_res = lstat (filename, &oldfile);
321 if (stat_res == 0 && S_ISREG(oldfile.st_mode)) { /* File already exists - really should check MD5's etc to see if different */
322 newname = bb_xstrdup(filename);
323 newname = strcat(newname, ".rpmorig");
324 copy_file(filename, newname, FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS);
325 remove_file(filename, FILEUTILS_RECUR | FILEUTILS_FORCE);
331 void fileaction_setowngrp(char *filename, int fileref)
334 uid = my_getpwnam(rpm_getstring(RPMTAG_FILEUSERNAME, fileref));
335 gid = my_getgrnam(rpm_getstring(RPMTAG_FILEGROUPNAME, fileref));
336 chown (filename, uid, gid);
339 void fileaction_list(char *filename, int fileref)
341 printf("%s\n", filename);
344 void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref))
347 char *filename, *tmp_dirname, *tmp_basename;
348 while (rpm_getstring(filetag, count)) {
349 tmp_dirname = rpm_getstring(RPMTAG_DIRNAMES, rpm_getint(RPMTAG_DIRINDEXES, count)); /* 1st put on the directory */
350 tmp_basename = rpm_getstring(RPMTAG_BASENAMES, count);
351 filename = xmalloc(strlen(tmp_basename) + strlen(tmp_dirname) + 1);
352 strcpy(filename, tmp_dirname); /* First the directory name */
353 strcat(filename, tmp_basename); /* then the filename */
354 fileaction(filename, count++);