1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2011 Nathan Whitehorn 5 * Copyright (c) 2014 Devin Teske <dteske@FreeBSD.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/param.h> 31 32 #include <archive.h> 33 #include <ctype.h> 34 #include <bsddialog.h> 35 #include <bsddialog_progressview.h> 36 #include <err.h> 37 #include <errno.h> 38 #include <limits.h> 39 #include <signal.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 #include <unistd.h> 44 45 #include "opt_osname.h" 46 47 /* Data to process */ 48 static const char *distdir = NULL; 49 static struct archive *archive = NULL; 50 51 /* Function prototypes */ 52 static void sig_int(int sig); 53 static int count_files(const char *file); 54 static int extract_files(struct bsddialog_fileminibar *file); 55 56 #define _errx(...) (bsddialog_end(), errx(__VA_ARGS__)) 57 58 int 59 main(void) 60 { 61 char *chrootdir; 62 char *distributions; 63 char *distribs, *distrib; 64 int retval; 65 size_t minibar_size = sizeof(struct bsddialog_fileminibar); 66 unsigned int nminibars; 67 struct bsddialog_fileminibar *dists; 68 struct bsddialog_progviewconf pvconf; 69 struct bsddialog_conf conf; 70 struct sigaction act; 71 char error[PATH_MAX + 512]; 72 73 if ((distributions = getenv("DISTRIBUTIONS")) == NULL) 74 errx(EXIT_FAILURE, "DISTRIBUTIONS variable is not set"); 75 if ((distdir = getenv("BSDINSTALL_DISTDIR")) == NULL) 76 distdir = ""; 77 if ((distribs = strdup(distributions)) == NULL) 78 errx(EXIT_FAILURE, "memory error"); 79 80 if (bsddialog_init() == BSDDIALOG_ERROR) 81 errx(EXIT_FAILURE, "Error libbsdialog: %s", 82 bsddialog_geterror()); 83 bsddialog_initconf(&conf); 84 bsddialog_backtitle(&conf, OSNAME " Installer"); 85 bsddialog_infobox(&conf, 86 "Checking distribution archives.\nPlease wait...", 4, 35); 87 88 /* Parse $DISTRIBUTIONS */ 89 nminibars = 0; 90 dists = NULL; 91 while ((distrib = strsep(&distribs, "\t\n\v\f\r ")) != NULL) { 92 if (strlen(distrib) == 0) 93 continue; 94 95 /* Allocate a new struct for the distribution */ 96 dists = realloc(dists, (nminibars + 1) * minibar_size); 97 if (dists == NULL) 98 _errx(EXIT_FAILURE, "Out of memory!"); 99 100 /* Set file path */ 101 dists[nminibars].path = distrib; 102 103 /* Set mini bar label */ 104 dists[nminibars].label = strrchr(dists[nminibars].path, '/'); 105 if (dists[nminibars].label == NULL) 106 dists[nminibars].label = dists[nminibars].path; 107 108 /* Set initial length in files (-1 == error) */ 109 dists[nminibars].size = count_files(dists[nminibars].path); 110 if (dists[nminibars].size < 0) { 111 bsddialog_end(); 112 return (EXIT_FAILURE); 113 } 114 115 /* Set initial status and implicitly miniperc to pending */ 116 dists[nminibars].status = BSDDIALOG_MG_PENDING; 117 118 /* Set initial read */ 119 dists[nminibars].read = 0; 120 121 nminibars += 1; 122 } 123 124 /* Optionally chdir(2) into $BSDINSTALL_CHROOT */ 125 chrootdir = getenv("BSDINSTALL_CHROOT"); 126 if (chrootdir != NULL && chdir(chrootdir) != 0) { 127 snprintf(error, sizeof(error), 128 "Could not change to directory %s: %s\n", 129 chrootdir, strerror(errno)); 130 conf.title = "Error"; 131 bsddialog_msgbox(&conf, error, 0, 0); 132 bsddialog_end(); 133 return (EXIT_FAILURE); 134 } 135 136 /* Set cleanup routine for Ctrl-C action */ 137 act.sa_handler = sig_int; 138 sigaction(SIGINT, &act, 0); 139 140 conf.title = "Archive Extraction"; 141 conf.auto_minwidth = 40; 142 pvconf.callback = extract_files; 143 pvconf.refresh = 1; 144 pvconf.fmtbottomstr = "%10lli files read @ %'9.1f files/sec."; 145 bsddialog_total_progview = 0; 146 bsddialog_interruptprogview = bsddialog_abortprogview = false; 147 retval = bsddialog_progressview(&conf, 148 "\nExtracting distribution files...\n", 0, 0, 149 &pvconf, nminibars, dists); 150 151 if (retval == BSDDIALOG_ERROR) { 152 fprintf(stderr, "progressview error: %s\n", 153 bsddialog_geterror()); 154 } 155 156 bsddialog_end(); 157 158 free(distribs); 159 free(dists); 160 161 return (retval); 162 } 163 164 static void 165 sig_int(int sig __unused) 166 { 167 bsddialog_interruptprogview = true; 168 } 169 170 /* 171 * Returns number of files in archive file. Parses $BSDINSTALL_DISTDIR/MANIFEST 172 * if it exists, otherwise uses archive(3) to read the archive file. 173 */ 174 static int 175 count_files(const char *file) 176 { 177 static FILE *manifest = NULL; 178 char *p; 179 int file_count; 180 int retval; 181 size_t span; 182 struct archive_entry *entry; 183 char line[512]; 184 char path[PATH_MAX]; 185 char errormsg[PATH_MAX + 512]; 186 struct bsddialog_conf conf; 187 188 if (manifest == NULL) { 189 snprintf(path, sizeof(path), "%s/MANIFEST", distdir); 190 manifest = fopen(path, "r"); 191 } 192 193 if (manifest != NULL) { 194 rewind(manifest); 195 while (fgets(line, sizeof(line), manifest) != NULL) { 196 p = &line[0]; 197 span = strcspn(p, "\t") ; 198 if (span < 1 || strncmp(p, file, span) != 0) 199 continue; 200 201 /* 202 * We're at the right manifest line. The file count is 203 * in the third element 204 */ 205 span = strcspn(p += span + (*p != '\0' ? 1 : 0), "\t"); 206 span = strcspn(p += span + (*p != '\0' ? 1 : 0), "\t"); 207 if (span > 0) { 208 file_count = (int)strtol(p, (char **)NULL, 10); 209 if (file_count == 0 && errno == EINVAL) 210 continue; 211 return (file_count); 212 } 213 } 214 } 215 216 /* 217 * Either no manifest, or manifest didn't mention this archive. 218 * Use archive(3) to read the archive, counting files within. 219 */ 220 bsddialog_initconf(&conf); 221 if ((archive = archive_read_new()) == NULL) { 222 snprintf(errormsg, sizeof(errormsg), 223 "Error: %s\n", archive_error_string(NULL)); 224 conf.title = "Extract Error"; 225 bsddialog_msgbox(&conf, errormsg, 0, 0); 226 return (-1); 227 } 228 archive_read_support_format_all(archive); 229 archive_read_support_filter_all(archive); 230 snprintf(path, sizeof(path), "%s/%s", distdir, file); 231 retval = archive_read_open_filename(archive, path, 4096); 232 if (retval != ARCHIVE_OK) { 233 snprintf(errormsg, sizeof(errormsg), 234 "Error while extracting %s: %s\n", file, 235 archive_error_string(archive)); 236 conf.title = "Extract Error"; 237 bsddialog_msgbox(&conf, errormsg, 0, 0); 238 archive = NULL; 239 return (-1); 240 } 241 242 file_count = 0; 243 while (archive_read_next_header(archive, &entry) == ARCHIVE_OK) 244 file_count++; 245 archive_read_free(archive); 246 archive = NULL; 247 248 return (file_count); 249 } 250 251 static int 252 extract_files(struct bsddialog_fileminibar *file) 253 { 254 int retval; 255 struct archive_entry *entry; 256 char path[PATH_MAX]; 257 char errormsg[PATH_MAX + 512]; 258 struct bsddialog_conf conf; 259 260 bsddialog_initconf(&conf); 261 262 /* Open the archive if necessary */ 263 if (archive == NULL) { 264 if ((archive = archive_read_new()) == NULL) { 265 snprintf(errormsg, sizeof(errormsg), 266 "Error: %s\n", archive_error_string(NULL)); 267 conf.title = "Extract Error"; 268 bsddialog_msgbox(&conf, errormsg, 0, 0); 269 bsddialog_abortprogview = true; 270 return (-1); 271 } 272 archive_read_support_format_all(archive); 273 archive_read_support_filter_all(archive); 274 snprintf(path, sizeof(path), "%s/%s", distdir, file->path); 275 retval = archive_read_open_filename(archive, path, 4096); 276 if (retval != 0) { 277 snprintf(errormsg, sizeof(errormsg), 278 "Error opening %s: %s\n", file->label, 279 archive_error_string(archive)); 280 conf.title = "Extract Error"; 281 bsddialog_msgbox(&conf, errormsg, 0, 0); 282 file->status = BSDDIALOG_MG_FAILED; 283 bsddialog_abortprogview = true; 284 return (-1); 285 } 286 } 287 288 /* Read the next archive header */ 289 retval = archive_read_next_header(archive, &entry); 290 291 /* If that went well, perform the extraction */ 292 if (retval == ARCHIVE_OK) 293 retval = archive_read_extract(archive, entry, 294 ARCHIVE_EXTRACT_TIME | ARCHIVE_EXTRACT_OWNER | 295 ARCHIVE_EXTRACT_PERM | ARCHIVE_EXTRACT_ACL | 296 ARCHIVE_EXTRACT_XATTR | ARCHIVE_EXTRACT_FFLAGS); 297 298 /* Test for either EOF or error */ 299 if (retval == ARCHIVE_EOF) { 300 archive_read_free(archive); 301 archive = NULL; 302 file->status = BSDDIALOG_MG_DONE; /*Done*/; 303 return (100); 304 } else if (retval != ARCHIVE_OK && 305 !(retval == ARCHIVE_WARN && 306 strcmp(archive_error_string(archive), "Can't restore time") == 0)) { 307 /* 308 * Print any warning/error messages except inability to set 309 * ctime/mtime, which is not fatal, or even interesting, 310 * for our purposes. Would be nice if this were a libarchive 311 * option. 312 */ 313 snprintf(errormsg, sizeof(errormsg), 314 "Error while extracting %s: %s\n", file->label, 315 archive_error_string(archive)); 316 conf.title = "Extract Error"; 317 bsddialog_msgbox(&conf, errormsg, 0, 0); 318 file->status = BSDDIALOG_MG_FAILED; /* Failed */ 319 bsddialog_abortprogview = true; 320 return (-1); 321 } 322 323 bsddialog_total_progview++; 324 file->read++; 325 326 /* Calculate [overall] percentage of completion (if possible) */ 327 if (file->size >= 0) 328 return (file->read * 100 / file->size); 329 else 330 return (-1); 331 } 332