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 tarball for details.
11 #include "unarchive.h"
13 #define RPM_HEADER_MAGIC "\216\255\350"
14 #define RPM_CHAR_TYPE 1
15 #define RPM_INT8_TYPE 2
16 #define RPM_INT16_TYPE 3
17 #define RPM_INT32_TYPE 4
18 /* #define RPM_INT64_TYPE 5 ---- These aren't supported (yet) */
19 #define RPM_STRING_TYPE 6
20 #define RPM_BIN_TYPE 7
21 #define RPM_STRING_ARRAY_TYPE 8
22 #define RPM_I18NSTRING_TYPE 9
24 #define RPMTAG_NAME 1000
25 #define RPMTAG_VERSION 1001
26 #define RPMTAG_RELEASE 1002
27 #define RPMTAG_SUMMARY 1004
28 #define RPMTAG_DESCRIPTION 1005
29 #define RPMTAG_BUILDTIME 1006
30 #define RPMTAG_BUILDHOST 1007
31 #define RPMTAG_SIZE 1009
32 #define RPMTAG_VENDOR 1011
33 #define RPMTAG_LICENSE 1014
34 #define RPMTAG_PACKAGER 1015
35 #define RPMTAG_GROUP 1016
36 #define RPMTAG_URL 1020
37 #define RPMTAG_PREIN 1023
38 #define RPMTAG_POSTIN 1024
39 #define RPMTAG_FILEFLAGS 1037
40 #define RPMTAG_FILEUSERNAME 1039
41 #define RPMTAG_FILEGROUPNAME 1040
42 #define RPMTAG_SOURCERPM 1044
43 #define RPMTAG_PREINPROG 1085
44 #define RPMTAG_POSTINPROG 1086
45 #define RPMTAG_PREFIXS 1098
46 #define RPMTAG_DIRINDEXES 1116
47 #define RPMTAG_BASENAMES 1117
48 #define RPMTAG_DIRNAMES 1118
49 #define RPMFILE_CONFIG (1 << 0)
50 #define RPMFILE_DOC (1 << 1)
52 enum rpm_functions_e {
56 rpm_query_package = 8,
58 rpm_query_list_doc = 32,
59 rpm_query_list_config = 64
63 uint32_t tag; /* 4 byte tag */
64 uint32_t type; /* 4 byte type */
65 uint32_t offset; /* 4 byte offset */
66 uint32_t count; /* 4 byte count */
70 static rpm_index **mytags;
73 void extract_cpio_gz(int fd);
74 rpm_index **rpm_gettags(int fd, int *num_tags);
75 int bsearch_rpmtag(const void *key, const void *item);
76 char *rpm_getstring(int tag, int itemindex);
77 int rpm_getint(int tag, int itemindex);
78 int rpm_getcount(int tag);
79 void exec_script(int progtag, int datatag, char *prefix);
80 void fileaction_dobackup(char *filename, int fileref);
81 void fileaction_setowngrp(char *filename, int fileref);
82 void fileaction_list(char *filename, int itemno);
83 void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref));
85 int rpm_main(int argc, char **argv)
87 int opt = 0, func = 0, rpm_fd, offset;
89 while ((opt = getopt(argc, argv, "iqpldc")) != -1) {
91 case 'i': // First arg: Install mode, with q: Information
92 if (!func) func |= rpm_install;
93 else func |= rpm_query_info;
95 case 'q': // First arg: Query mode
96 if (!func) func |= rpm_query;
99 case 'p': // Query a package
100 func |= rpm_query_package;
102 case 'l': // List files in a package
103 func |= rpm_query_list;
105 case 'd': // List doc files in a package (implies list)
106 func |= rpm_query_list;
107 func |= rpm_query_list_doc;
109 case 'c': // List config files in a package (implies list)
110 func |= rpm_query_list;
111 func |= rpm_query_list_config;
118 if (optind == argc) bb_show_usage();
119 while (optind < argc) {
120 rpm_fd = xopen(argv[optind], O_RDONLY);
121 mytags = rpm_gettags(rpm_fd, (int *) &tagcount);
122 offset = lseek(rpm_fd, 0, SEEK_CUR);
123 if (!mytags) { printf("Error reading rpm header\n"); exit(-1); }
124 map = mmap(0, offset > getpagesize() ? (offset + offset % getpagesize()) : getpagesize(), PROT_READ, MAP_PRIVATE, rpm_fd, 0); // Mimimum is one page
125 if (func & rpm_install) {
126 loop_through_files(RPMTAG_BASENAMES, fileaction_dobackup); /* Backup any config files */
127 extract_cpio_gz(rpm_fd); // Extact the archive
128 loop_through_files(RPMTAG_BASENAMES, fileaction_setowngrp); /* Set the correct file uid/gid's */
129 } else if (func & rpm_query && func & rpm_query_package) {
130 if (!((func & rpm_query_info) || (func & rpm_query_list))) { // If just a straight query, just give package name
131 printf("%s-%s-%s\n", rpm_getstring(RPMTAG_NAME, 0), rpm_getstring(RPMTAG_VERSION, 0), rpm_getstring(RPMTAG_RELEASE, 0));
133 if (func & rpm_query_info) {
134 /* Do the nice printout */
137 char bdatestring[50];
138 printf("Name : %-29sRelocations: %s\n", rpm_getstring(RPMTAG_NAME, 0), rpm_getstring(RPMTAG_PREFIXS, 0) ? rpm_getstring(RPMTAG_PREFIXS, 0) : "(not relocateable)");
139 printf("Version : %-34sVendor: %s\n", rpm_getstring(RPMTAG_VERSION, 0), rpm_getstring(RPMTAG_VENDOR, 0) ? rpm_getstring(RPMTAG_VENDOR, 0) : "(none)");
140 bdate_time = rpm_getint(RPMTAG_BUILDTIME, 0);
141 bdate = localtime((time_t *) &bdate_time);
142 strftime(bdatestring, 50, "%a %d %b %Y %T %Z", bdate);
143 printf("Release : %-30sBuild Date: %s\n", rpm_getstring(RPMTAG_RELEASE, 0), bdatestring);
144 printf("Install date: %-30sBuild Host: %s\n", "(not installed)", rpm_getstring(RPMTAG_BUILDHOST, 0));
145 printf("Group : %-30sSource RPM: %s\n", rpm_getstring(RPMTAG_GROUP, 0), rpm_getstring(RPMTAG_SOURCERPM, 0));
146 printf("Size : %-33dLicense: %s\n", rpm_getint(RPMTAG_SIZE, 0), rpm_getstring(RPMTAG_LICENSE, 0));
147 printf("URL : %s\n", rpm_getstring(RPMTAG_URL, 0));
148 printf("Summary : %s\n", rpm_getstring(RPMTAG_SUMMARY, 0));
149 printf("Description :\n%s\n", rpm_getstring(RPMTAG_DESCRIPTION, 0));
151 if (func & rpm_query_list) {
152 int count, it, flags;
153 count = rpm_getcount(RPMTAG_BASENAMES);
154 for (it = 0; it < count; it++) {
155 flags = rpm_getint(RPMTAG_FILEFLAGS, it);
156 switch ((func & rpm_query_list_doc) + (func & rpm_query_list_config))
158 case rpm_query_list_doc: if (!(flags & RPMFILE_DOC)) continue; break;
159 case rpm_query_list_config: if (!(flags & RPMFILE_CONFIG)) continue; break;
160 case rpm_query_list_doc + rpm_query_list_config: if (!((flags & RPMFILE_CONFIG) || (flags & RPMFILE_DOC))) continue; break;
162 printf("%s%s\n", rpm_getstring(RPMTAG_DIRNAMES, rpm_getint(RPMTAG_DIRINDEXES, it)), rpm_getstring(RPMTAG_BASENAMES, it));
172 void extract_cpio_gz(int fd) {
173 archive_handle_t *archive_handle;
174 unsigned char magic[2];
177 archive_handle = init_handle();
178 archive_handle->seek = seek_by_char;
179 //archive_handle->action_header = header_list;
180 archive_handle->action_data = data_extract_all;
181 archive_handle->flags |= ARCHIVE_PRESERVE_DATE;
182 archive_handle->flags |= ARCHIVE_CREATE_LEADING_DIRS;
183 archive_handle->src_fd = fd;
184 archive_handle->offset = 0;
186 xread(archive_handle->src_fd, &magic, 2);
187 if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) {
188 bb_error_msg_and_die("Invalid gzip magic");
190 check_header_gzip(archive_handle->src_fd);
191 xchdir("/"); // Install RPM's to root
193 archive_handle->src_fd = open_transformer(archive_handle->src_fd, inflate_gunzip);
194 archive_handle->offset = 0;
195 while (get_header_cpio(archive_handle) == EXIT_SUCCESS);
199 rpm_index **rpm_gettags(int fd, int *num_tags)
201 rpm_index **tags = xzalloc(200 * sizeof(struct rpmtag *)); /* We should never need mode than 200, and realloc later */
202 int pass, tagindex = 0;
203 lseek(fd, 96, SEEK_CUR); /* Seek past the unused lead */
205 for (pass = 0; pass < 2; pass++) { /* 1st pass is the signature headers, 2nd is the main stuff */
207 char magic[3]; /* 3 byte magic: 0x8e 0xad 0xe8 */
208 uint8_t version; /* 1 byte version number */
209 uint32_t reserved; /* 4 bytes reserved */
210 uint32_t entries; /* Number of entries in header (4 bytes) */
211 uint32_t size; /* Size of store (4 bytes) */
216 read(fd, &header, sizeof(header));
217 if (strncmp((char *) &header.magic, RPM_HEADER_MAGIC, 3) != 0) return NULL; /* Invalid magic */
218 if (header.version != 1) return NULL; /* This program only supports v1 headers */
219 header.size = ntohl(header.size);
220 header.entries = ntohl(header.entries);
221 storepos = lseek(fd,0,SEEK_CUR) + header.entries * 16;
223 while (header.entries--) {
224 tmpindex = tags[tagindex++] = xmalloc(sizeof(rpm_index));
225 read(fd, tmpindex, sizeof(rpm_index));
226 tmpindex->tag = ntohl(tmpindex->tag); tmpindex->type = ntohl(tmpindex->type); tmpindex->count = ntohl(tmpindex->count);
227 tmpindex->offset = storepos + ntohl(tmpindex->offset);
228 if (pass==0) tmpindex->tag -= 743;
230 lseek(fd, header.size, SEEK_CUR); /* Seek past store */
231 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 */
233 tags = realloc(tags, tagindex * sizeof(struct rpmtag *)); /* realloc tags to save space */
234 *num_tags = tagindex;
235 return tags; /* All done, leave the file at the start of the gzipped cpio archive */
238 int bsearch_rpmtag(const void *key, const void *item)
240 int *tag = (int *)key;
241 rpm_index **tmp = (rpm_index **) item;
242 return (*tag - tmp[0]->tag);
245 int rpm_getcount(int tag)
248 found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
249 if (!found) return 0;
250 else return found[0]->count;
253 char *rpm_getstring(int tag, int itemindex)
256 found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
257 if (!found || itemindex >= found[0]->count) return NULL;
258 if (found[0]->type == RPM_STRING_TYPE || found[0]->type == RPM_I18NSTRING_TYPE || found[0]->type == RPM_STRING_ARRAY_TYPE) {
260 char *tmpstr = (char *) (map + found[0]->offset);
261 for (n=0; n < itemindex; n++) tmpstr = tmpstr + strlen(tmpstr) + 1;
266 int rpm_getint(int tag, int itemindex)
270 /* gcc throws warnings here when sizeof(void*)!=sizeof(int) ...
271 * it's ok to ignore it because tag won't be used as a pointer */
272 found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
273 if (!found || itemindex >= found[0]->count) return -1;
274 tmpint = (int *) (map + found[0]->offset);
275 if (found[0]->type == RPM_INT32_TYPE) {
276 for (n=0; n<itemindex; n++) tmpint = (int *) ((void *) tmpint + 4);
277 return ntohl(*tmpint);
278 } else if (found[0]->type == RPM_INT16_TYPE) {
279 for (n=0; n<itemindex; n++) tmpint = (int *) ((void *) tmpint + 2);
280 return ntohs(*tmpint);
281 } else if (found[0]->type == RPM_INT8_TYPE) {
282 for (n=0; n<itemindex; n++) tmpint = (int *) ((void *) tmpint + 1);
283 return ntohs(*tmpint);
287 void fileaction_dobackup(char *filename, int fileref)
292 if (rpm_getint(RPMTAG_FILEFLAGS, fileref) & RPMFILE_CONFIG) { /* Only need to backup config files */
293 stat_res = lstat (filename, &oldfile);
294 if (stat_res == 0 && S_ISREG(oldfile.st_mode)) { /* File already exists - really should check MD5's etc to see if different */
295 newname = xstrdup(filename);
296 newname = strcat(newname, ".rpmorig");
297 copy_file(filename, newname, FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS);
298 remove_file(filename, FILEUTILS_RECUR | FILEUTILS_FORCE);
304 void fileaction_setowngrp(char *filename, int fileref)
307 uid = bb_xgetpwnam(rpm_getstring(RPMTAG_FILEUSERNAME, fileref));
308 gid = bb_xgetgrnam(rpm_getstring(RPMTAG_FILEGROUPNAME, fileref));
309 chown (filename, uid, gid);
312 void fileaction_list(char *filename, int ATTRIBUTE_UNUSED fileref)
314 printf("%s\n", filename);
317 void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref))
320 while (rpm_getstring(filetag, count)) {
321 char * filename = xasprintf("%s%s",
322 rpm_getstring(RPMTAG_DIRNAMES, rpm_getint(RPMTAG_DIRINDEXES,
323 count)), rpm_getstring(RPMTAG_BASENAMES, count));
324 fileaction(filename, count++);