X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=archival%2Frpm.c;h=2ef7232f44e4c6f5a392b5d669a9b3bbfc658f56;hb=3feb2fc535db445951314f57a8f7ecc460b456d9;hp=61486cb03aaba1773d18dc6a7cb0fb9465467374;hpb=38386d7fed1ffbeed3421ffe6ecb07e06f1473f8;p=oweals%2Fbusybox.git diff --git a/archival/rpm.c b/archival/rpm.c index 61486cb03..2ef7232f4 100644 --- a/archival/rpm.c +++ b/archival/rpm.c @@ -4,31 +4,9 @@ * * 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 + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. */ -#include -#include -#include -#include -#include -#include /* For ntohl & htonl function */ -#include /* For strncmp */ -#include /* For mmap */ -#include /* For ctime */ - #include "busybox.h" #include "unarchive.h" @@ -43,7 +21,7 @@ #define RPM_STRING_ARRAY_TYPE 8 #define RPM_I18NSTRING_TYPE 9 -#define RPMTAG_NAME 1000 +#define RPMTAG_NAME 1000 #define RPMTAG_VERSION 1001 #define RPMTAG_RELEASE 1002 #define RPMTAG_SUMMARY 1004 @@ -82,27 +60,25 @@ enum rpm_functions_e { }; 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 */ + uint32_t tag; /* 4 byte tag */ + uint32_t type; /* 4 byte type */ + uint32_t offset; /* 4 byte offset */ + uint32_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)); +static void extract_cpio_gz(int fd); +static rpm_index **rpm_gettags(int fd, int *num_tags); +static int bsearch_rpmtag(const void *key, const void *item); +static char *rpm_getstring(int tag, int itemindex); +static int rpm_getint(int tag, int itemindex); +static int rpm_getcount(int tag); +static void fileaction_dobackup(char *filename, int fileref); +static void fileaction_setowngrp(char *filename, int fileref); +static void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref)); int rpm_main(int argc, char **argv) { @@ -116,7 +92,7 @@ int rpm_main(int argc, char **argv) break; case 'q': // First arg: Query mode if (!func) func |= rpm_query; - else show_usage(); + else bb_show_usage(); break; case 'p': // Query a package func |= rpm_query_package; @@ -133,17 +109,17 @@ int rpm_main(int argc, char **argv) func |= rpm_query_list_config; break; default: - show_usage(); + bb_show_usage(); } } - if (optind == argc) show_usage(); + if (optind == argc) bb_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 + map = mmap(0, offset > getpagesize() ? (offset + offset % getpagesize()) : getpagesize(), PROT_READ, MAP_PRIVATE, 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 @@ -191,49 +167,46 @@ int rpm_main(int argc, char **argv) return 0; } -void extract_cpio_gz(int fd) { +static 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->seek = seek_by_read; //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); + + xread(archive_handle->src_fd, &magic, 2); if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) { - error_msg_and_die("Invalid gzip magic"); + bb_error_msg_and_die("invalid gzip magic"); } - check_header_gzip(archive_handle->src_fd); - chdir("/"); // Install RPM's to root + check_header_gzip(archive_handle->src_fd); + xchdir("/"); // Install RPM's to root - GZ_gzReadOpen(archive_handle->src_fd, 0, 0); + archive_handle->src_fd = open_transformer(archive_handle->src_fd, inflate_gunzip); + archive_handle->offset = 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) +static 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 */ + rpm_index **tags = xzalloc(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) */ + uint8_t version; /* 1 byte version number */ + uint32_t reserved; /* 4 bytes reserved */ + uint32_t entries; /* Number of entries in header (4 bytes) */ + uint32_t size; /* Size of store (4 bytes) */ } header; rpm_index *tmpindex; int storepos; @@ -246,7 +219,7 @@ rpm_index **rpm_gettags(int fd, int *num_tags) storepos = lseek(fd,0,SEEK_CUR) + header.entries * 16; while (header.entries--) { - tmpindex = tags[tagindex++] = malloc(sizeof(rpm_index)); + tmpindex = tags[tagindex++] = xmalloc(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); @@ -260,24 +233,25 @@ rpm_index **rpm_gettags(int fd, int *num_tags) return tags; /* All done, leave the file at the start of the gzipped cpio archive */ } -int bsearch_rpmtag(const void *key, const void *item) +static int bsearch_rpmtag(const void *key, const void *item) { + int *tag = (int *)key; rpm_index **tmp = (rpm_index **) item; - return ((int) key - tmp[0]->tag); + return (*tag - tmp[0]->tag); } -int rpm_getcount(int tag) +static int rpm_getcount(int tag) { rpm_index **found; - found = bsearch((void *) tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag); + found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag); if (!found) return 0; else return found[0]->count; } -char *rpm_getstring(int tag, int itemindex) +static char *rpm_getstring(int tag, int itemindex) { rpm_index **found; - found = bsearch((void *) tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag); + found = bsearch(&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; @@ -287,11 +261,13 @@ char *rpm_getstring(int tag, int itemindex) } else return NULL; } -int rpm_getint(int tag, int itemindex) +static int rpm_getint(int tag, int itemindex) { rpm_index **found; int n, *tmpint; - found = bsearch((void *) tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag); + /* 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, 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) { @@ -306,7 +282,7 @@ int rpm_getint(int tag, int itemindex) } else return -1; } -void fileaction_dobackup(char *filename, int fileref) +static void fileaction_dobackup(char *filename, int fileref) { struct stat oldfile; int stat_res; @@ -314,8 +290,7 @@ void fileaction_dobackup(char *filename, int fileref) 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"); + newname = xasprintf("%s.rpmorig", filename); copy_file(filename, newname, FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS); remove_file(filename, FILEUTILS_RECUR | FILEUTILS_FORCE); free(newname); @@ -323,29 +298,21 @@ void fileaction_dobackup(char *filename, int fileref) } } -void fileaction_setowngrp(char *filename, int fileref) +static 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); + uid = bb_xgetpwnam(rpm_getstring(RPMTAG_FILEUSERNAME, fileref)); + gid = bb_xgetgrnam(rpm_getstring(RPMTAG_FILEGROUPNAME, fileref)); + chown(filename, uid, gid); } -void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref)) +static 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 */ + char * filename = xasprintf("%s%s", + rpm_getstring(RPMTAG_DIRNAMES, rpm_getint(RPMTAG_DIRINDEXES, + count)), rpm_getstring(RPMTAG_BASENAMES, count)); fileaction(filename, count++); free(filename); }