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authorErik Andersen <andersen@codepoet.org>2000-01-04 01:10:25 +0000
committerErik Andersen <andersen@codepoet.org>2000-01-04 01:10:25 +0000
commit7dc160721ee3ceb76240a43d1454b45aaa9dbee4 (patch)
tree7532471be456e2c9f11eab88cb34f1e38abd184f /archival
parent9c88cac5cbfb2ff70f800ee5bb3289e925aaa65f (diff)
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Bunches of fixes. Typos, bugs, etc.
Added 'gunzip -t'. inittab support _almost_ works (but it isn't ready for prime time useage yet). -Erik
Diffstat (limited to 'archival')
-rw-r--r--archival/gunzip.c32
-rw-r--r--archival/tar.c121
2 files changed, 92 insertions, 61 deletions
diff --git a/archival/gunzip.c b/archival/gunzip.c
index 61391a33f..84f5d02b7 100644
--- a/archival/gunzip.c
+++ b/archival/gunzip.c
@@ -8,7 +8,8 @@ static const char gunzip_usage[] =
8 "gunzip [OPTION]... FILE\n\n" 8 "gunzip [OPTION]... FILE\n\n"
9 "Uncompress FILE (or standard input if FILE is '-').\n\n" 9 "Uncompress FILE (or standard input if FILE is '-').\n\n"
10 "Options:\n" 10 "Options:\n"
11 "\t-c\tWrite output to standard output\n"; 11 "\t-c\tWrite output to standard output\n"
12 "\t-t\tTest compressed file integrity\n";
12 13
13/* gzip (GNU zip) -- compress files with zip algorithm and 'compress' interface 14/* gzip (GNU zip) -- compress files with zip algorithm and 'compress' interface
14 * Copyright (C) 1992-1993 Jean-loup Gailly 15 * Copyright (C) 1992-1993 Jean-loup Gailly
@@ -653,7 +654,7 @@ DECLARE(uch, window, 2L*WSIZE);
653 654
654 /* local variables */ 655 /* local variables */
655 656
656int force = 0; /* don't ask questions, compress links (-f) */ 657int test_mode = 0; /* check file integrity option */
657int foreground; /* set if program run in foreground */ 658int foreground; /* set if program run in foreground */
658int maxbits = BITS; /* max bits per code for LZW */ 659int maxbits = BITS; /* max bits per code for LZW */
659int method = DEFLATED;/* compression method */ 660int method = DEFLATED;/* compression method */
@@ -714,6 +715,10 @@ int gunzip_main (int argc, char** argv)
714 case 'c': 715 case 'c':
715 to_stdout = 1; 716 to_stdout = 1;
716 break; 717 break;
718 case 't':
719 test_mode = 1;
720 break;
721
717 default: 722 default:
718 usage(gunzip_usage); 723 usage(gunzip_usage);
719 } 724 }
@@ -786,6 +791,9 @@ int gunzip_main (int argc, char** argv)
786 /* Actually do the compression/decompression. */ 791 /* Actually do the compression/decompression. */
787 unzip(inFileNum, outFileNum); 792 unzip(inFileNum, outFileNum);
788 793
794 } else if (test_mode) {
795 /* Actually do the compression/decompression. */
796 unzip(inFileNum, 2);
789 } else { 797 } else {
790 char* pos; 798 char* pos;
791 799
@@ -857,17 +865,8 @@ local int get_method(in)
857 uch flags; /* compression flags */ 865 uch flags; /* compression flags */
858 char magic[2]; /* magic header */ 866 char magic[2]; /* magic header */
859 867
860 /* If --force and --stdout, zcat == cat, so do not complain about 868 magic[0] = (char)get_byte();
861 * premature end of file: use try_byte instead of get_byte. 869 magic[1] = (char)get_byte();
862 */
863 if (force) {
864 magic[0] = (char)try_byte();
865 magic[1] = (char)try_byte();
866 /* If try_byte returned EOF, magic[1] == 0xff */
867 } else {
868 magic[0] = (char)get_byte();
869 magic[1] = (char)get_byte();
870 }
871 method = -1; /* unknown yet */ 870 method = -1; /* unknown yet */
872 part_nb++; /* number of parts in gzip file */ 871 part_nb++; /* number of parts in gzip file */
873 header_bytes = 0; 872 header_bytes = 0;
@@ -1188,7 +1187,8 @@ void flush_outbuf()
1188{ 1187{
1189 if (outcnt == 0) return; 1188 if (outcnt == 0) return;
1190 1189
1191 write_buf(ofd, (char *)outbuf, outcnt); 1190 if (!test_mode)
1191 write_buf(ofd, (char *)outbuf, outcnt);
1192 bytes_out += (ulg)outcnt; 1192 bytes_out += (ulg)outcnt;
1193 outcnt = 0; 1193 outcnt = 0;
1194} 1194}
@@ -1202,8 +1202,8 @@ void flush_window()
1202 if (outcnt == 0) return; 1202 if (outcnt == 0) return;
1203 updcrc(window, outcnt); 1203 updcrc(window, outcnt);
1204 1204
1205 write_buf(ofd, (char *)window, outcnt); 1205 if (!test_mode)
1206 1206 write_buf(ofd, (char *)window, outcnt);
1207 bytes_out += (ulg)outcnt; 1207 bytes_out += (ulg)outcnt;
1208 outcnt = 0; 1208 outcnt = 0;
1209} 1209}
diff --git a/archival/tar.c b/archival/tar.c
index 7167d95cd..a53370e85 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -37,6 +37,7 @@
37#include <fcntl.h> 37#include <fcntl.h>
38#include <signal.h> 38#include <signal.h>
39#include <time.h> 39#include <time.h>
40#include <utime.h>
40#include <sys/types.h> 41#include <sys/types.h>
41#include <sys/sysmacros.h> 42#include <sys/sysmacros.h>
42 43
@@ -106,8 +107,12 @@ static int warnedRoot;
106static int eofFlag; 107static int eofFlag;
107static long dataCc; 108static long dataCc;
108static int outFd; 109static int outFd;
109static char outName[TAR_NAME_SIZE]; 110static const char *outName;
110 111
112static int mode;
113static int uid;
114static int gid;
115static time_t mtime;
111 116
112/* 117/*
113 * Static data associated with the tar file. 118 * Static data associated with the tar file.
@@ -364,8 +369,9 @@ static void readTarFile (int fileCount, char **fileTable)
364 * message is required on errors. 369 * message is required on errors.
365 */ 370 */
366 if (tostdoutFlag == FALSE) { 371 if (tostdoutFlag == FALSE) {
367 if (outFd >= 0) 372 if (outFd >= 0) {
368 (void) close (outFd); 373 close (outFd);
374 }
369 } 375 }
370} 376}
371 377
@@ -378,29 +384,25 @@ static void readTarFile (int fileCount, char **fileTable)
378static void 384static void
379readHeader (const TarHeader * hp, int fileCount, char **fileTable) 385readHeader (const TarHeader * hp, int fileCount, char **fileTable)
380{ 386{
381 int mode;
382 int uid;
383 int gid;
384 int checkSum; 387 int checkSum;
385 unsigned int major;
386 unsigned int minor;
387 long size;
388 time_t mtime;
389 const char *name;
390 int cc; 388 int cc;
391 int hardLink; 389 int hardLink;
392 int softLink; 390 int softLink;
393 int devFileFlag; 391 int devFileFlag;
392 unsigned int major;
393 unsigned int minor;
394 long size;
395 struct utimbuf utb;
394 396
395 /* 397 /*
396 * If the block is completely empty, then this is the end of the 398 * If the block is completely empty, then this is the end of the
397 * archive file. If the name is null, then just skip this header. 399 * archive file. If the name is null, then just skip this header.
398 */ 400 */
399 name = hp->name; 401 outName = hp->name;
400 402
401 if (*name == '\0') { 403 if (*outName == '\0') {
402 for (cc = TAR_BLOCK_SIZE; cc > 0; cc--) { 404 for (cc = TAR_BLOCK_SIZE; cc > 0; cc--) {
403 if (*name++) 405 if (*outName++)
404 return; 406 return;
405 } 407 }
406 408
@@ -447,16 +449,16 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
447 /* 449 /*
448 * Check for a directory. 450 * Check for a directory.
449 */ 451 */
450 if (name[strlen (name) - 1] == '/') 452 if (outName[strlen (outName) - 1] == '/')
451 mode |= S_IFDIR; 453 mode |= S_IFDIR;
452 454
453 /* 455 /*
454 * Check for absolute paths in the file. 456 * Check for absolute paths in the file.
455 * If we find any, then warn the user and make them relative. 457 * If we find any, then warn the user and make them relative.
456 */ 458 */
457 if (*name == '/') { 459 if (*outName == '/') {
458 while (*name == '/') 460 while (*outName == '/')
459 name++; 461 outName++;
460 462
461 if (warnedRoot==FALSE) { 463 if (warnedRoot==FALSE) {
462 fprintf (stderr, 464 fprintf (stderr,
@@ -470,7 +472,7 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
470 * See if we want this file to be restored. 472 * See if we want this file to be restored.
471 * If not, then set up to skip it. 473 * If not, then set up to skip it.
472 */ 474 */
473 if (wantFileName (name, fileCount, fileTable) == FALSE) { 475 if (wantFileName (outName, fileCount, fileTable) == FALSE) {
474 if ( !hardLink && !softLink && (S_ISREG (mode) || S_ISCHR (mode) 476 if ( !hardLink && !softLink && (S_ISREG (mode) || S_ISCHR (mode)
475 || S_ISBLK (mode) || S_ISSOCK(mode) || S_ISFIFO(mode) ) ) { 477 || S_ISBLK (mode) || S_ISSOCK(mode) || S_ISFIFO(mode) ) ) {
476 inHeader = (size == 0)? TRUE : FALSE; 478 inHeader = (size == 0)? TRUE : FALSE;
@@ -494,7 +496,7 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
494 else 496 else
495 printf ("%9ld %s ", size, timeString (mtime)); 497 printf ("%9ld %s ", size, timeString (mtime));
496 } 498 }
497 printf ("%s", name); 499 printf ("%s", outName);
498 500
499 if (hardLink) 501 if (hardLink)
500 printf (" (link to \"%s\")", hp->linkName); 502 printf (" (link to \"%s\")", hp->linkName);
@@ -515,22 +517,35 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
515 * We really want to extract the file. 517 * We really want to extract the file.
516 */ 518 */
517 if (verboseFlag==TRUE) 519 if (verboseFlag==TRUE)
518 printf ("x %s\n", name); 520 printf ("x %s\n", outName);
519 521
520 if (hardLink) { 522 if (hardLink) {
521 if (link (hp->linkName, name) < 0) 523 if (link (hp->linkName, outName) < 0)
522 perror (name); 524 perror (outName);
523 chown(name, uid, gid); 525 /* Set the file time */
524 chmod(name, mode); 526 utb.actime = mtime;
527 utb.modtime = mtime;
528 utime (outName, &utb);
529 /* Set the file permissions */
530 chown(outName, uid, gid);
531 chmod(outName, mode);
525 return; 532 return;
526 } 533 }
527 534
528 if (softLink) { 535 if (softLink) {
529#ifdef S_ISLNK 536#ifdef S_ISLNK
530 if (symlink (hp->linkName, name) < 0) 537 if (symlink (hp->linkName, outName) < 0)
531 perror (name); 538 perror (outName);
532 chown(name, uid, gid); 539 /* Try to change ownership of the symlink.
533 chmod(name, mode); 540 * If libs doesn't support that, don't bother.
541 * Changing the pointed-to file is the Wrong Thing(tm).
542 */
543#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
544 lchown(outName, uid, gid);
545#endif
546
547 /* Do not change permissions or date on symlink,
548 * since it changes the pointed to file instead. duh. */
534#else 549#else
535 fprintf (stderr, "Cannot create symbolic links\n"); 550 fprintf (stderr, "Cannot create symbolic links\n");
536#endif 551#endif
@@ -545,10 +560,14 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
545 * If the file is a directory, then just create the path. 560 * If the file is a directory, then just create the path.
546 */ 561 */
547 if (S_ISDIR (mode)) { 562 if (S_ISDIR (mode)) {
548 createPath (name, mode); 563 createPath (outName, mode);
549 chown(name, uid, gid); 564 /* Set the file time */
550 chmod(name, mode); 565 utb.actime = mtime;
551 566 utb.modtime = mtime;
567 utime (outName, &utb);
568 /* Set the file permissions */
569 chown(outName, uid, gid);
570 chmod(outName, mode);
552 return; 571 return;
553 } 572 }
554 573
@@ -556,7 +575,7 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
556 * There is a file to write. 575 * There is a file to write.
557 * First create the path to it if necessary with default permissions. 576 * First create the path to it if necessary with default permissions.
558 */ 577 */
559 createPath (name, 0777); 578 createPath (outName, 0777);
560 579
561 inHeader = (size == 0)? TRUE : FALSE; 580 inHeader = (size == 0)? TRUE : FALSE;
562 dataCc = size; 581 dataCc = size;
@@ -569,21 +588,26 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
569 else { 588 else {
570 if ( S_ISCHR(mode) || S_ISBLK(mode) || S_ISSOCK(mode) ) { 589 if ( S_ISCHR(mode) || S_ISBLK(mode) || S_ISSOCK(mode) ) {
571 devFileFlag = TRUE; 590 devFileFlag = TRUE;
572 outFd = mknod (name, mode, makedev(major, minor) ); 591 outFd = mknod (outName, mode, makedev(major, minor) );
573 } 592 }
574 else if (S_ISFIFO(mode) ) { 593 else if (S_ISFIFO(mode) ) {
575 devFileFlag = TRUE; 594 devFileFlag = TRUE;
576 outFd = mkfifo(name, mode); 595 outFd = mkfifo(outName, mode);
577 } else { 596 } else {
578 outFd = open (name, O_WRONLY | O_CREAT | O_TRUNC, mode); 597 outFd = open (outName, O_WRONLY | O_CREAT | O_TRUNC, mode);
579 } 598 }
580 if (outFd < 0) { 599 if (outFd < 0) {
581 perror (name); 600 perror (outName);
582 skipFileFlag = TRUE; 601 skipFileFlag = TRUE;
583 return; 602 return;
584 } 603 }
585 chown(name, uid, gid); 604 /* Set the file time */
586 chmod(name, mode); 605 utb.actime = mtime;
606 utb.modtime = mtime;
607 utime (outName, &utb);
608 /* Set the file permissions */
609 chown(outName, uid, gid);
610 chmod(outName, mode);
587 } 611 }
588 612
589 613
@@ -591,7 +615,7 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
591 * If the file is empty, then that's all we need to do. 615 * If the file is empty, then that's all we need to do.
592 */ 616 */
593 if (size == 0 && (tostdoutFlag == FALSE) && (devFileFlag == FALSE)) { 617 if (size == 0 && (tostdoutFlag == FALSE) && (devFileFlag == FALSE)) {
594 (void) close (outFd); 618 close (outFd);
595 outFd = -1; 619 outFd = -1;
596 } 620 }
597} 621}
@@ -625,7 +649,7 @@ static void readData (const char *cp, int count)
625 if (fullWrite (outFd, cp, count) < 0) { 649 if (fullWrite (outFd, cp, count) < 0) {
626 perror (outName); 650 perror (outName);
627 if (tostdoutFlag == FALSE) { 651 if (tostdoutFlag == FALSE) {
628 (void) close (outFd); 652 close (outFd);
629 outFd = -1; 653 outFd = -1;
630 } 654 }
631 skipFileFlag = TRUE; 655 skipFileFlag = TRUE;
@@ -633,13 +657,21 @@ static void readData (const char *cp, int count)
633 } 657 }
634 658
635 /* 659 /*
636 * If the write failed, close the file and disable further 660 * Check if we are done writing to the file now.
637 * writes to this file.
638 */ 661 */
639 if (dataCc <= 0 && tostdoutFlag == FALSE) { 662 if (dataCc <= 0 && tostdoutFlag == FALSE) {
663 struct utimbuf utb;
640 if (close (outFd)) 664 if (close (outFd))
641 perror (outName); 665 perror (outName);
642 666
667 /* Set the file time */
668 utb.actime = mtime;
669 utb.modtime = mtime;
670 utime (outName, &utb);
671 /* Set the file permissions */
672 chown(outName, uid, gid);
673 chmod(outName, mode);
674
643 outFd = -1; 675 outFd = -1;
644 } 676 }
645} 677}
@@ -720,7 +752,6 @@ static void writeTarFile (int fileCount, char **fileTable)
720static void saveFile (const char *fileName, int seeLinks) 752static void saveFile (const char *fileName, int seeLinks)
721{ 753{
722 int status; 754 int status;
723 int mode;
724 struct stat statbuf; 755 struct stat statbuf;
725 756
726 if (verboseFlag==TRUE) 757 if (verboseFlag==TRUE)
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-17 01:20:15 +0000