[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Mini rpm applet for busybox
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| 4 | *
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| 5 | * Copyright (C) 2001,2002 by Laurence Anderson
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| 6 | *
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[2725] | 7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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[821] | 8 | */
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| 9 |
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[1765] | 10 | #include "libbb.h"
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[2725] | 11 | #include "archive.h"
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| 12 | #include "rpm.h"
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[821] | 13 |
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[1765] | 14 | #define RPM_CHAR_TYPE 1
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| 15 | #define RPM_INT8_TYPE 2
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| 16 | #define RPM_INT16_TYPE 3
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| 17 | #define RPM_INT32_TYPE 4
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| 18 | /* #define RPM_INT64_TYPE 5 ---- These aren't supported (yet) */
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| 19 | #define RPM_STRING_TYPE 6
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| 20 | #define RPM_BIN_TYPE 7
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| 21 | #define RPM_STRING_ARRAY_TYPE 8
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| 22 | #define RPM_I18NSTRING_TYPE 9
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[821] | 23 |
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[1765] | 24 | #define TAG_NAME 1000
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| 25 | #define TAG_VERSION 1001
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| 26 | #define TAG_RELEASE 1002
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| 27 | #define TAG_SUMMARY 1004
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| 28 | #define TAG_DESCRIPTION 1005
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| 29 | #define TAG_BUILDTIME 1006
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| 30 | #define TAG_BUILDHOST 1007
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| 31 | #define TAG_SIZE 1009
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| 32 | #define TAG_VENDOR 1011
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| 33 | #define TAG_LICENSE 1014
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| 34 | #define TAG_PACKAGER 1015
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| 35 | #define TAG_GROUP 1016
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| 36 | #define TAG_URL 1020
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| 37 | #define TAG_PREIN 1023
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| 38 | #define TAG_POSTIN 1024
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| 39 | #define TAG_FILEFLAGS 1037
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| 40 | #define TAG_FILEUSERNAME 1039
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| 41 | #define TAG_FILEGROUPNAME 1040
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| 42 | #define TAG_SOURCERPM 1044
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| 43 | #define TAG_PREINPROG 1085
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| 44 | #define TAG_POSTINPROG 1086
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| 45 | #define TAG_PREFIXS 1098
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| 46 | #define TAG_DIRINDEXES 1116
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| 47 | #define TAG_BASENAMES 1117
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| 48 | #define TAG_DIRNAMES 1118
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[2725] | 49 |
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[1765] | 50 | #define RPMFILE_CONFIG (1 << 0)
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| 51 | #define RPMFILE_DOC (1 << 1)
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[821] | 52 |
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| 53 | enum rpm_functions_e {
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| 54 | rpm_query = 1,
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| 55 | rpm_install = 2,
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| 56 | rpm_query_info = 4,
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| 57 | rpm_query_package = 8,
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| 58 | rpm_query_list = 16,
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| 59 | rpm_query_list_doc = 32,
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| 60 | rpm_query_list_config = 64
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| 61 | };
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| 62 |
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| 63 | typedef struct {
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| 64 | uint32_t tag; /* 4 byte tag */
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| 65 | uint32_t type; /* 4 byte type */
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| 66 | uint32_t offset; /* 4 byte offset */
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| 67 | uint32_t count; /* 4 byte count */
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| 68 | } rpm_index;
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| 69 |
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| 70 | static void *map;
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| 71 | static rpm_index **mytags;
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| 72 | static int tagcount;
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| 73 |
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[2725] | 74 | static void extract_cpio(int fd, const char *source_rpm);
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[1765] | 75 | static rpm_index **rpm_gettags(int fd, int *num_tags);
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| 76 | static int bsearch_rpmtag(const void *key, const void *item);
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| 77 | static char *rpm_getstr(int tag, int itemindex);
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| 78 | static int rpm_getint(int tag, int itemindex);
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| 79 | static int rpm_getcount(int tag);
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| 80 | static void fileaction_dobackup(char *filename, int fileref);
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| 81 | static void fileaction_setowngrp(char *filename, int fileref);
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| 82 | static void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref));
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[821] | 83 |
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[2725] | 84 | int rpm_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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[821] | 85 | int rpm_main(int argc, char **argv)
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| 86 | {
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| 87 | int opt = 0, func = 0, rpm_fd, offset;
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[1765] | 88 | const int pagesize = getpagesize();
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[821] | 89 |
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| 90 | while ((opt = getopt(argc, argv, "iqpldc")) != -1) {
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| 91 | switch (opt) {
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[1765] | 92 | case 'i': /* First arg: Install mode, with q: Information */
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| 93 | if (!func) func = rpm_install;
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[821] | 94 | else func |= rpm_query_info;
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| 95 | break;
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[1765] | 96 | case 'q': /* First arg: Query mode */
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| 97 | if (func) bb_show_usage();
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| 98 | func = rpm_query;
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[821] | 99 | break;
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[1765] | 100 | case 'p': /* Query a package */
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[821] | 101 | func |= rpm_query_package;
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| 102 | break;
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[1765] | 103 | case 'l': /* List files in a package */
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[821] | 104 | func |= rpm_query_list;
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| 105 | break;
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[1765] | 106 | case 'd': /* List doc files in a package (implies list) */
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[821] | 107 | func |= rpm_query_list;
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| 108 | func |= rpm_query_list_doc;
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| 109 | break;
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[1765] | 110 | case 'c': /* List config files in a package (implies list) */
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[821] | 111 | func |= rpm_query_list;
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| 112 | func |= rpm_query_list_config;
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| 113 | break;
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| 114 | default:
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| 115 | bb_show_usage();
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| 116 | }
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| 117 | }
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[1765] | 118 | argv += optind;
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[2725] | 119 | //argc -= optind;
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| 120 | if (!argv[0]) {
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| 121 | bb_show_usage();
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| 122 | }
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[821] | 123 |
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[1765] | 124 | while (*argv) {
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[2725] | 125 | const char *source_rpm;
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| 126 |
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[1765] | 127 | rpm_fd = xopen(*argv++, O_RDONLY);
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| 128 | mytags = rpm_gettags(rpm_fd, &tagcount);
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| 129 | if (!mytags)
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| 130 | bb_error_msg_and_die("error reading rpm header");
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| 131 | offset = xlseek(rpm_fd, 0, SEEK_CUR);
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| 132 | /* Mimimum is one page */
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| 133 | map = mmap(0, offset > pagesize ? (offset + offset % pagesize) : pagesize, PROT_READ, MAP_PRIVATE, rpm_fd, 0);
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| 134 |
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[2725] | 135 | source_rpm = rpm_getstr(TAG_SOURCERPM, 0);
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| 136 |
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[821] | 137 | if (func & rpm_install) {
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[1765] | 138 | /* Backup any config files */
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| 139 | loop_through_files(TAG_BASENAMES, fileaction_dobackup);
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| 140 | /* Extact the archive */
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[2725] | 141 | extract_cpio(rpm_fd, source_rpm);
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[1765] | 142 | /* Set the correct file uid/gid's */
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| 143 | loop_through_files(TAG_BASENAMES, fileaction_setowngrp);
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| 144 | }
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| 145 | else if ((func & (rpm_query|rpm_query_package)) == (rpm_query|rpm_query_package)) {
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| 146 | if (!(func & (rpm_query_info|rpm_query_list))) {
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| 147 | /* If just a straight query, just give package name */
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| 148 | printf("%s-%s-%s\n", rpm_getstr(TAG_NAME, 0), rpm_getstr(TAG_VERSION, 0), rpm_getstr(TAG_RELEASE, 0));
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[821] | 149 | }
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| 150 | if (func & rpm_query_info) {
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| 151 | /* Do the nice printout */
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| 152 | time_t bdate_time;
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[2725] | 153 | struct tm *bdate_ptm;
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[821] | 154 | char bdatestring[50];
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[2725] | 155 | const char *p;
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| 156 |
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| 157 | p = rpm_getstr(TAG_PREFIXS, 0);
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| 158 | if (!p) p = "(not relocateable)";
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| 159 | printf("Name : %-29sRelocations: %s\n", rpm_getstr(TAG_NAME, 0), p);
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| 160 | p = rpm_getstr(TAG_VENDOR, 0);
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| 161 | if (!p) p = "(none)";
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| 162 | printf("Version : %-34sVendor: %s\n", rpm_getstr(TAG_VERSION, 0), p);
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[1765] | 163 | bdate_time = rpm_getint(TAG_BUILDTIME, 0);
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[2725] | 164 | bdate_ptm = localtime(&bdate_time);
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| 165 | strftime(bdatestring, 50, "%a %d %b %Y %T %Z", bdate_ptm);
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[1765] | 166 | printf("Release : %-30sBuild Date: %s\n", rpm_getstr(TAG_RELEASE, 0), bdatestring);
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| 167 | printf("Install date: %-30sBuild Host: %s\n", "(not installed)", rpm_getstr(TAG_BUILDHOST, 0));
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[2725] | 168 | printf("Group : %-30sSource RPM: %s\n", rpm_getstr(TAG_GROUP, 0), source_rpm);
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[1765] | 169 | printf("Size : %-33dLicense: %s\n", rpm_getint(TAG_SIZE, 0), rpm_getstr(TAG_LICENSE, 0));
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| 170 | printf("URL : %s\n", rpm_getstr(TAG_URL, 0));
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| 171 | printf("Summary : %s\n", rpm_getstr(TAG_SUMMARY, 0));
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| 172 | printf("Description :\n%s\n", rpm_getstr(TAG_DESCRIPTION, 0));
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[821] | 173 | }
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| 174 | if (func & rpm_query_list) {
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| 175 | int count, it, flags;
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[1765] | 176 | count = rpm_getcount(TAG_BASENAMES);
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[821] | 177 | for (it = 0; it < count; it++) {
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[1765] | 178 | flags = rpm_getint(TAG_FILEFLAGS, it);
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| 179 | switch (func & (rpm_query_list_doc|rpm_query_list_config)) {
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| 180 | case rpm_query_list_doc:
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| 181 | if (!(flags & RPMFILE_DOC)) continue;
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| 182 | break;
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| 183 | case rpm_query_list_config:
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| 184 | if (!(flags & RPMFILE_CONFIG)) continue;
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| 185 | break;
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| 186 | case rpm_query_list_doc|rpm_query_list_config:
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| 187 | if (!(flags & (RPMFILE_CONFIG|RPMFILE_DOC))) continue;
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| 188 | break;
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[821] | 189 | }
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[1765] | 190 | printf("%s%s\n",
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| 191 | rpm_getstr(TAG_DIRNAMES, rpm_getint(TAG_DIRINDEXES, it)),
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| 192 | rpm_getstr(TAG_BASENAMES, it));
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[821] | 193 | }
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| 194 | }
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| 195 | }
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[1765] | 196 | free(mytags);
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[821] | 197 | }
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| 198 | return 0;
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| 199 | }
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| 200 |
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[2725] | 201 | static void extract_cpio(int fd, const char *source_rpm)
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[1765] | 202 | {
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[821] | 203 | archive_handle_t *archive_handle;
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| 204 |
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[2725] | 205 | if (source_rpm != NULL) {
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| 206 | /* Binary rpm (it was built from some SRPM), install to root */
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| 207 | xchdir("/");
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| 208 | } /* else: SRPM, install to current dir */
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| 209 |
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[1765] | 210 | /* Initialize */
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[821] | 211 | archive_handle = init_handle();
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[1765] | 212 | archive_handle->seek = seek_by_read;
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[821] | 213 | archive_handle->action_data = data_extract_all;
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[2725] | 214 | #if 0 /* For testing (rpm -i only lists the files in internal cpio): */
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| 215 | archive_handle->action_header = header_list;
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| 216 | archive_handle->action_data = data_skip;
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| 217 | #endif
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| 218 | archive_handle->ah_flags = ARCHIVE_RESTORE_DATE | ARCHIVE_CREATE_LEADING_DIRS
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| 219 | /* compat: overwrite existing files.
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| 220 | * try "rpm -i foo.src.rpm" few times in a row -
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| 221 | * standard rpm will not complain.
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| 222 | * (TODO? real rpm creates "file;1234" and then renames it) */
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| 223 | | ARCHIVE_UNLINK_OLD;
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[821] | 224 | archive_handle->src_fd = fd;
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[2725] | 225 | /*archive_handle->offset = 0; - init_handle() did it */
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[821] | 226 |
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[2725] | 227 | setup_unzip_on_fd(archive_handle->src_fd /*, fail_if_not_detected: 1*/);
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[1765] | 228 | while (get_header_cpio(archive_handle) == EXIT_SUCCESS)
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| 229 | continue;
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[821] | 230 | }
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| 231 |
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[1765] | 232 | static rpm_index **rpm_gettags(int fd, int *num_tags)
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[821] | 233 | {
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[2725] | 234 | /* We should never need more than 200 (shrink via realloc later) */
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| 235 | rpm_index **tags = xzalloc(200 * sizeof(tags[0]));
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[821] | 236 | int pass, tagindex = 0;
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| 237 |
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[1765] | 238 | xlseek(fd, 96, SEEK_CUR); /* Seek past the unused lead */
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| 239 |
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| 240 | /* 1st pass is the signature headers, 2nd is the main stuff */
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| 241 | for (pass = 0; pass < 2; pass++) {
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[2725] | 242 | struct rpm_header header;
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[821] | 243 | rpm_index *tmpindex;
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| 244 | int storepos;
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| 245 |
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[1765] | 246 | xread(fd, &header, sizeof(header));
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[2725] | 247 | if (header.magic_and_ver != htonl(RPM_HEADER_MAGICnVER))
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| 248 | return NULL; /* Invalid magic, or not version 1 */
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[821] | 249 | header.size = ntohl(header.size);
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| 250 | header.entries = ntohl(header.entries);
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[2725] | 251 | storepos = xlseek(fd, 0, SEEK_CUR) + header.entries * 16;
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[821] | 252 |
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| 253 | while (header.entries--) {
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[2725] | 254 | tmpindex = tags[tagindex++] = xmalloc(sizeof(*tmpindex));
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| 255 | xread(fd, tmpindex, sizeof(*tmpindex));
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[1765] | 256 | tmpindex->tag = ntohl(tmpindex->tag);
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| 257 | tmpindex->type = ntohl(tmpindex->type);
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| 258 | tmpindex->count = ntohl(tmpindex->count);
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[821] | 259 | tmpindex->offset = storepos + ntohl(tmpindex->offset);
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[2725] | 260 | if (pass == 0)
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[1765] | 261 | tmpindex->tag -= 743;
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[821] | 262 | }
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[2725] | 263 | storepos = xlseek(fd, header.size, SEEK_CUR); /* Seek past store */
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[1765] | 264 | /* Skip padding to 8 byte boundary after reading signature headers */
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[2725] | 265 | if (pass == 0)
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| 266 | xlseek(fd, (-storepos) & 0x7, SEEK_CUR);
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[821] | 267 | }
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[2725] | 268 | /* realloc tags to save space */
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| 269 | tags = xrealloc(tags, tagindex * sizeof(tags[0]));
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[821] | 270 | *num_tags = tagindex;
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[2725] | 271 | /* All done, leave the file at the start of the gzipped cpio archive */
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| 272 | return tags;
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[821] | 273 | }
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| 274 |
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[1765] | 275 | static int bsearch_rpmtag(const void *key, const void *item)
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[821] | 276 | {
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| 277 | int *tag = (int *)key;
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| 278 | rpm_index **tmp = (rpm_index **) item;
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| 279 | return (*tag - tmp[0]->tag);
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| 280 | }
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| 281 |
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[1765] | 282 | static int rpm_getcount(int tag)
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[821] | 283 | {
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| 284 | rpm_index **found;
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| 285 | found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
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[1765] | 286 | if (!found)
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| 287 | return 0;
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| 288 | return found[0]->count;
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[821] | 289 | }
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| 290 |
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[1765] | 291 | static char *rpm_getstr(int tag, int itemindex)
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[821] | 292 | {
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| 293 | rpm_index **found;
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| 294 | found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
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[1765] | 295 | if (!found || itemindex >= found[0]->count)
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| 296 | return NULL;
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[2725] | 297 | if (found[0]->type == RPM_STRING_TYPE
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| 298 | || found[0]->type == RPM_I18NSTRING_TYPE
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| 299 | || found[0]->type == RPM_STRING_ARRAY_TYPE
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| 300 | ) {
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[821] | 301 | int n;
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[2725] | 302 | char *tmpstr = (char *) map + found[0]->offset;
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| 303 | for (n = 0; n < itemindex; n++)
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[1765] | 304 | tmpstr = tmpstr + strlen(tmpstr) + 1;
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[821] | 305 | return tmpstr;
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[1765] | 306 | }
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| 307 | return NULL;
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[821] | 308 | }
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| 309 |
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[1765] | 310 | static int rpm_getint(int tag, int itemindex)
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[821] | 311 | {
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| 312 | rpm_index **found;
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[1765] | 313 | int *tmpint; /* NB: using int8_t* would be easier to code */
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| 314 |
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[821] | 315 | /* gcc throws warnings here when sizeof(void*)!=sizeof(int) ...
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| 316 | * it's ok to ignore it because tag won't be used as a pointer */
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| 317 | found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
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[1765] | 318 | if (!found || itemindex >= found[0]->count)
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| 319 | return -1;
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| 320 |
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[2725] | 321 | tmpint = (int *) ((char *) map + found[0]->offset);
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[1765] | 322 |
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[821] | 323 | if (found[0]->type == RPM_INT32_TYPE) {
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[1765] | 324 | tmpint = (int *) ((char *) tmpint + itemindex*4);
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| 325 | /*return ntohl(*tmpint);*/
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| 326 | /* int can be != int32_t */
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| 327 | return ntohl(*(int32_t*)tmpint);
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| 328 | }
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| 329 | if (found[0]->type == RPM_INT16_TYPE) {
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| 330 | tmpint = (int *) ((char *) tmpint + itemindex*2);
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| 331 | /* ??? read int, and THEN ntohs() it?? */
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| 332 | /*return ntohs(*tmpint);*/
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| 333 | return ntohs(*(int16_t*)tmpint);
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| 334 | }
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| 335 | if (found[0]->type == RPM_INT8_TYPE) {
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| 336 | tmpint = (int *) ((char *) tmpint + itemindex);
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| 337 | /* ??? why we don't read byte here??? */
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| 338 | /*return ntohs(*tmpint);*/
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| 339 | return *(int8_t*)tmpint;
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| 340 | }
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| 341 | return -1;
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[821] | 342 | }
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| 343 |
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[1765] | 344 | static void fileaction_dobackup(char *filename, int fileref)
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[821] | 345 | {
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| 346 | struct stat oldfile;
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| 347 | int stat_res;
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| 348 | char *newname;
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[1765] | 349 | if (rpm_getint(TAG_FILEFLAGS, fileref) & RPMFILE_CONFIG) {
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| 350 | /* Only need to backup config files */
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| 351 | stat_res = lstat(filename, &oldfile);
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| 352 | if (stat_res == 0 && S_ISREG(oldfile.st_mode)) {
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| 353 | /* File already exists - really should check MD5's etc to see if different */
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| 354 | newname = xasprintf("%s.rpmorig", filename);
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[821] | 355 | copy_file(filename, newname, FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS);
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| 356 | remove_file(filename, FILEUTILS_RECUR | FILEUTILS_FORCE);
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| 357 | free(newname);
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| 358 | }
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| 359 | }
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| 360 | }
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| 361 |
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[1765] | 362 | static void fileaction_setowngrp(char *filename, int fileref)
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[821] | 363 | {
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[2725] | 364 | /* real rpm warns: "user foo does not exist - using <you>" */
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| 365 | struct passwd *pw = getpwnam(rpm_getstr(TAG_FILEUSERNAME, fileref));
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| 366 | int uid = pw ? pw->pw_uid : getuid(); /* or euid? */
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| 367 | struct group *gr = getgrnam(rpm_getstr(TAG_FILEGROUPNAME, fileref));
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| 368 | int gid = gr ? gr->gr_gid : getgid();
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[1765] | 369 | chown(filename, uid, gid);
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[821] | 370 | }
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| 371 |
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[1765] | 372 | static void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref))
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[821] | 373 | {
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| 374 | int count = 0;
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[1765] | 375 | while (rpm_getstr(filetag, count)) {
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| 376 | char* filename = xasprintf("%s%s",
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| 377 | rpm_getstr(TAG_DIRNAMES, rpm_getint(TAG_DIRINDEXES, count)),
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| 378 | rpm_getstr(TAG_BASENAMES, count));
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[821] | 379 | fileaction(filename, count++);
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| 380 | free(filename);
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| 381 | }
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| 382 | }
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